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Vehicle Specific => Toyota Pickup/4Runner Tech 1979-95 => Topic started by: freds40 on Apr 17, 2005, 03:33:32 PM

Title: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 03:33:32 PM
This Thread is Featured in our Tech from our Forum Members (https://www.marlincrawler.com/tech#forum) section!

Update: Rick's info on tapping the FJ 80 series box has been added at the bottom of page #1 

This is an in depth layout of how I have drilled/tapped Toyota IFS steering boxes for Hydro assist as well as a simple mod to allow your pump to keep up. I was able to get ahold of a box (thanks toecutter) so I could show a bit more detail than my original thread on just setting up my system. This is intended to give a bit more info on the time, tools, and ability needed to do this mod. I was nervous about it the first time but once I got into it, I was upset at how difficult many people made the job sound. If you want to give me $75 to do your box, that's fine but this is not about me making money, it's to show that it can be done easily by most people. It took me about 2 hrs. from start to finish and that was with taking all the pictures. So if you have the ability, a bit of patience, and don't have the cash to have someone elso do it, try it yourself.

And this is the rest of setting up my Hydro assist system for cheap.   http://board.marlincrawler.com/index.php?topic=4699.0


Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 03:37:57 PM
First, all the tools I have used from start to finish. There is more or even different tools to use, but this is the system I have used and it works great for me.

Deadblow hammer
Ball Peen hammer
3/4" socket for 1/2" drive ratchet
32mm socket for 1/2" drive ratchet
Pitman arm puller
Crescent wrench
1/2" drive ratchet
3/8" drive ratchet
14mm socket for a 3/8" ratchet
Center punch
7/16" drill bit
2 smaller bits to step up in size
1/4" NPT tap
14 guage wire (about 8" long)
Brake cleaner
1/2" drive drill
Many rags.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 03:40:22 PM
If you don't have a pitman arm puller, check out Autozone. They have a free tool rental setup where you pay for the tool and they give a complete refund when it is returned. Free tool rental.  :thumbs:  When you ask for the pitman arm puller, make sure you get this part number as both times I have gotten them, they have tried to give me a pickle fork.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 03:40:57 PM
And this is a close up of the proper tool itself.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 03:41:37 PM
Alright, first step is to pull the 32mm pitman arm nut.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 03:44:14 PM
Now to pull the arm, I have found that if you use the tool in the predetermined method of just tightening on the puller, chances are you will break it, I know, I have.  :hammerhead:  The best way I have found to pull the arm is to first tighten the puller down onto the arm. Get it tight enough that you have to put some muscle in it, but not that you are jumping on the breaker bar to turn it.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 03:46:34 PM
Next, grab your ball peen and smack the end of the puller itself. Retighten the puller. I usually get about 1/16th of a turn between blows with the hammer. Smack it again. Keep this up until the arm pops loose. First box I did it took 2 shots, this one took 5. It can take a little while but keep at it.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 03:47:17 PM
Next, turn the input shaft to about the center location.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 03:47:48 PM
Pull the 4 sector shaft bolts on the top cap.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 03:49:10 PM
Use the dead blow and tap the sector shaft up through the top of the box. A bit of fluid will come out so be ready with some absorbant.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 03:50:27 PM
Turn the input shaft to the left until it stops. Now remove the 4 input shaft housing bolts.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 03:54:15 PM
If your box has the centering valve, use the 10mm allen wrench to remove it. There is a valve, spring, and almost a cylinder that need to be removed. If you don't have one, skip this.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 03:55:22 PM
Now pull the input shaft housing, you might have to worry it a bit as the o-ring inside will stick some.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 03:56:48 PM
Now you can locate where you want your holes. The first can be moved around some. I have seen some people who have mounted it on the word TOYODA.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 04:01:04 PM
Only problem is if you ever want to move your box forward to accomodate moving the axle forward, the line coming off the box will interfere with the front body mount. I prefer the second location. Roughly 2.5" down from the top surface and 1.25" over from the casting seam. It is out of the way and allows for you to move the axle in the future without redrilling your box.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 04:03:20 PM
With this hole, if you look inside you are drilling into a large open orifice so this one is the quick and easy hole. Also note that a rag should be stuffed in to cover the bearings for the sector shaft so as not to get any chips down that direction.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 04:05:28 PM
Always center punch before drilling as walking the bit can really mess ya up on the next hole. I started with a small bit to pilot the hole, then stepped up to a middle sized bit to make the final 7/16 hole easier and more controlled.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 04:06:24 PM
Here is the pilot hole from my preditermined location.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 04:09:50 PM
Now I used to work in a machine shop and when we had to tap a hole in a free standing structure we would use a hand drill to power it in as well as to properly align it. As long as you are holding the drill with the tap in the same plane as when you drilled the hole, the tap will align properly. After starting the threads with the drill, I used a cresent wrench to finish tapping the threads. Make sure to use a good cutting oil and to back out the tap and clean the threads frequently as it only takes 1 rogue chip to strip your threads or even break off the tap in the hole.

:EDIT: Hadn't thought about it because it didn't happen to me. When tapping this hole, take your time and check the depth. I got a PM informing me that they had tapped too deep and the fitting was bottoming on the sector shaft. Quick fix if it happens is cut a couple of threads off the fitting, debur the threads, and throw it back in. :thumbs:
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 04:10:45 PM
Now for the top hole, you are trying to catch the vein that runs front to back.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 04:11:43 PM
You can see on the top of the box, the vein is actually raised above the rest of the casting.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 04:13:22 PM
Same method, punch, pilot, step, 7/16, tap. You can see that I was a little off to the left but the bit is large enough that I still caught the vein just fine. With this hole, you need the 7/16 bit to touch the bottom of this vein in order to get enough engagement on the fitting. BE SURE NOT TO PUNCH THROUGH THE BOTTOM AS THIS WILL RUIN YOUR BOX.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 04:21:01 PM
Now make sure you clean the box THOROUGHLY. I have found that using compressed air works but can make it difficult if used too soon. If you blast air into the top vein right off the bat, it will compact the chips together and take a long time to get them all out. I have found that if you use a piece of 14 guage wire (it's what I had lying around), strip back about 1/2-3/4" and fray the wires a bit, it'll work much better. If you insert the frayed wire and twist, you can grab some chips and pull them out. Do this until the wire stops @ the other end of the vein. Then blast some brake cleaner down the vein to clean the cutting oil and small particles. Then just clean the chips from the main body of the box, pull the rag on the bearings and clean some more. A flashlight will help you find ALL the chips. Once it is %100 free of chips, you can start reassembly.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 04:21:40 PM
One thing to watch when reassembling is the teflon ring on the piston.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 04:22:52 PM
It can get cut on this sharp edge when sliding back in and cause some serious problems down the line.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 04:24:10 PM
After reassembly, throw on your lines and you are ready to go.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 04:26:40 PM
Now, some people get nervous because @ this stage, your ram will not keep up with the speed in which you are trying to turn. A simple 10 min. pump mod will take care of the problem. Some people shim the spring inside which I have heard will burn up a pump. For this part, I used a 13/64 drill bit, drill, 17mm combination wrench, and a crescent wrench. Remove the High pressure line from the pump and then the restrictor itself. When removing the restrictor, be careful that the spring inside and the plunger do not shoot out and become lost. If you are careful, they will just sit inside when you remove the restrictor.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 04:28:41 PM
Once out, turn the restrictor upside down on a hard surface and tap a couple of times. A bushing will fall out. Now drill the orifice in the restrictor out to 13/64. After drilled out, put the bushing back in and bolt it all back together.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 17, 2005, 04:55:59 PM
Rick posted some info for working the FJ 80 boxes. Here it is borrowed (with Rick's permission) from the Tuki build:

 I wanted to abbreviate a few differences in dealing with the FJ80 box. (Its
my understanding that the FJ-80 box is also identical to the FJ55/60/62.)

STEPS:

0.) Remove and thoroughly clean outside of the steering box.

1.) Center the pitman arm.

3.) Remove the pitman arm.

4.) Remove top 4 bolts above sector shaft, 14 mm.

5.) Remove Sector Shaft.

6.) Turn input shaft so internal piston moves toward input end.

IFS box - CounterClockWise
FJ80 box - ClockWise

7.) Remove centering valve, 10mm allen. (if required)

8.) Remove 4 bolts from input shaft housing, 14 mm.

9.) Remove input shaft, don't let the internal piston spin off the input shaft.

10.) Clean the housing and stuff rags into sector shaft bearings and seals.

11.) Drill and tap housing. Typically on IFS boxes, people tap one hole in the
top and then one on opposite side of the TOYODA. But I've found that the top
hole is really difficult on the FJ-80 boxes since there appears to be less meat in
the top of some of the steering box housings plus you can't drill completely
though the box in that location. So what I've see other people do and did
myself, was I tapped a hole in the end of the box. Anywhere in the end will work
fine.

12.) Clean out the shavings and re-assembly with some lube.

13.) Plumb box to ram assist cylinder.

IFS - Top/End hole has pressure when turning left,
IFS - Side hole (TOYODA) has pressure when turning right.

FJ80 Box - Top/End hole has pressure when turning right,
FJ80 Box - Side hole (TOYODA) has pressure when turning left.



Hopefully that helps you other guys when dealing with these reverse rotation FJ80 steering boxes.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 21, 2005, 06:38:40 AM
And heres Rick's pics from the same thread showing the work done to the 80 box.

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi166.photobucket.com%2Falbums%2Fu86%2Ffreds40%2F80box2.jpg&hash=12fae28487b50cea4bc7de88ff64b94f)

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi166.photobucket.com%2Falbums%2Fu86%2Ffreds40%2FFJ80box.jpg&hash=104692dc8a5b299c6e18269a6c2ede1b)

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi166.photobucket.com%2Falbums%2Fu86%2Ffreds40%2F80box3.jpg&hash=807c16a14b9301560952133549c2f75b)


Great info Rick. Thanks for letting me add this to my thread. I hope to be borrowing this info as I will be doing a 60 box in the coming months.  :thumbs:
Title: Re: Hydro Assist:box and pump mods
Post by: gnob on Apr 21, 2005, 05:53:44 PM
i will reply.
i like this thread, as well as the cheap assist thread.
i looked at the site in the other thread, and when funds allow i will be going this route.
i cant wait for assit as a spooled front makes turning nearly impossible.

thanks for all the good info.
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Apr 24, 2005, 06:12:46 PM
Very good thread. This will benefit many people including myself. I ordered all my stuff from the Surplus Center including spare fittings and a spare hose for trail spares. I ordered and was billed for 3 hoses and not one of them was in the box with the rest of the stuff  :shake: . I will have to call and get them shipped.
Title: Re: Hydro Assist:box and pump mods
Post by: guywithuglyyota on Apr 24, 2005, 07:15:06 PM
Hey fred thanks for this postup! We need more of these on this thing. I didnt know this mod existed then I went to the Jambo this weekend and saw all kinds of guys running it, and it works very very well!
Title: Re: Hydro Assist:box and pump mods
Post by: mudguts on Apr 25, 2005, 07:59:27 PM
This is an excellent thread, and I think it should be moved to the tech section.
Good job Brendan  :thumbs:
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 25, 2005, 08:11:57 PM
Okay, I'll stop crying that nobody likes me now.  :haha:  :laugh:  Yeah I talked to Mike about moving it but in the tech section they are divided into years of trucks so there is no real place to put it. We decided (mainly because I didn't save the text) to just leave it where it is.  :yesnod:
Title: Re: Hydro Assist:box and pump mods
Post by: guywithuglyyota on Apr 25, 2005, 08:20:01 PM
sounds like they need to make a new tech section to cover this type of thing. Lots of mods carry over from 1st gen to second to third... thats cool to keep it where it is but like most posts it may get burried over time, and harder to look up for reference purposes.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 25, 2005, 08:24:03 PM
That was my thought too. I was hoping there was a general section in tech but there is not. I couldn't see putting this with just 1 Generation of trucks.  :dunno:
Title: Re: Hydro Assist:box and pump mods
Post by: guywithuglyyota on Apr 25, 2005, 08:39:21 PM
well im sure the moderators will read this post for there own trucks! And create a new section accordingly.
Title: Re: Hydro Assist:box and pump mods
Post by: Haz-matt on Apr 25, 2005, 10:55:59 PM
Can I add this to the wheeling wikipedia that I'm working on?  Or you can add it yourself, the link is in my sig.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Apr 27, 2005, 02:28:31 PM
Can I add this to the wheeling wikipedia that I'm working on?  Or you can add it yourself, the link is in my sig.

If you think some people will get some use out of it, go right ahead.  :thumbs:
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Jul 08, 2005, 06:14:21 PM
Figured I'd bring it back up for those who might be seeing a need for this mod now that the season is getting under way.  :driving:
Title: Re: Hydro Assist:box and pump mods
Post by: Willy Mammoth on Jul 08, 2005, 08:01:27 PM
Does this same procedure work for a Scout box too?

BTW Nice write up :thumbs:
Title: Re: Hydro Assist:box and pump mods
Post by: WHITE_TRASH on Jul 08, 2005, 08:12:06 PM
Yes it does.  I supose it'd be nice if I showed ya how to port yer box huh? :greengrin:
Title: Re: Hydro Assist:box and pump mods
Post by: Willy Mammoth on Jul 08, 2005, 08:18:44 PM
Not to jack this thread or anything, but you could start another one and put a link here.
Title: Re: Hydro Assist:box and pump mods
Post by: Duffil on Jul 08, 2005, 08:24:41 PM
could one simply drill the restrictor in the pump to boost line pressure for increased assist WITHOUT using the hydraulic ram, etc?  or would this blow the box out?  Obviously, it wouldn't be the same as hydro assist, but it would make it easier to steer, right?
Title: Re: Hydro Assist:box and pump mods
Post by: WHITE_TRASH on Jul 08, 2005, 08:32:04 PM
I have that setup right now.  Its better but not 1/1838388232th as strong as hydro assist.
Title: Re: Hydro Assist:box and pump mods
Post by: Willy Mammoth on Jul 08, 2005, 08:45:02 PM
The larger hole should only increase the flow volume not the pressure. You would have to play with the spring to increase the pressure and that may damage the seals in the box.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Jul 08, 2005, 08:49:57 PM
Yeah you can drill the oriface without assist but it won't really give you what assist does. Shimming the spring tends to give a little added push but it will wear out a pump real quick. I've heard many people that have shimmed the spring and after killing their pump, they won't do it again.
On other boxes, you just need to know where the 2 port veins run through the box. I'll be doing my new Saginaw box here in the next few days and figuring out where the veins are wasn't too difficult.
Title: Re: Hydro Assist:box and pump mods
Post by: Duffil on Jul 08, 2005, 08:55:34 PM
The larger hole should only increase the flow volume not the pressure. You would have to play with the spring to increase the pressure and that may damage the seals in the box.

yeah, you're right...I didn't word that correctly...but, wouldn't more flow also produce a smoother, easier arc of the wheel?  Of course, I have never modded a box or pump.... :dunno:
Title: Re: Hydro Assist:box and pump mods
Post by: Willy Mammoth on Jul 08, 2005, 09:16:45 PM
yeah, you're right...I didn't word that correctly...but, wouldn't more flow also produce a smoother, easier arc of the wheel? Of course, I have never modded a box or pump.... :dunno:

If your problem is the pump can't keep up with how fast you turn the wheels, then yes it may help. This is caused by the fluid being restricted and not folwing fast enough. It is most likely a safety feature, but no good for working the wheels back and fourth in the mud.
Title: Re: Hydro Assist:box and pump mods
Post by: FIREBALL on Jul 10, 2005, 08:05:39 AM
great write up, very detailed. I think i'm going to have to collect up some parts.
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Aug 19, 2005, 09:46:24 PM
Does anybody know it the process for doing the pump mod is any different on a 1992 P/S pump? I looked at mine on my 92 and the restrictor has two orifices rather than one. It looks different and it didn't look easy to drill. Is there a way to increase flow and pressure on the later model power steering pumps? Thanks.
Title: Re: Hydro Assist:box and pump mods
Post by: WHITE_TRASH on Aug 19, 2005, 09:48:36 PM
Same setup.  Take the line off and the large nut looking thing (yea thats the technical term :gap: ) and drill the restrictor out just like any other yota pump.  You wont even need a vice, the restrictor is very fragile and weak.  I just held mine in my hand and popped through it with a drill.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Aug 19, 2005, 10:49:03 PM
If you look @ the pics on replies 26 and 27, it shows exactly what the restrictor is and what it looks like. The pump is a bit dirty but just imagine the pressure hose goes into that part. Like WT said, this part is super easy. It took all of 5-10 mins from disconnecting the hose to re-attaching it.
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Aug 20, 2005, 06:44:41 PM
If you look @ the pics on replies 26 and 27, it shows exactly what the restrictor is and what it looks like. The pump is a bit dirty but just imagine the pressure hose goes into that part. Like WT said, this part is super easy. It took all of 5-10 mins from disconnecting the hose to re-attaching it.

The restictor in my pump is not the same as the one in the picture. The one in the picture obviously has one orifice that can be easily drilled out. The resrictor in my pump has two orifices side by side and appear to be very difficult to drill out if not impossible without creating a 3/8" hole. I will post a picture when I get a chance. I am also going to try to swap in a restrictor from a differant pump that can be drilled out.
Title: Re: Hydro Assist:box and pump mods
Post by: WHITE_TRASH on Aug 20, 2005, 06:52:10 PM
My restrictor had two small holes like you say your does.  My pump is a 94 so Ill bet they are the same series of pump. ;)  I used a 3/16" bit on mine and just drilled towards the middle.  No biggy. 
Title: Re: Hydro Assist:box and pump mods
Post by: FIREBALL on Aug 22, 2005, 04:07:03 PM
Got my box drilled, tapped, and bolted back up. Just need to weld on the tabs for the ram.
Damn this was simple.
I'm hoping the chevy pump doesn't need any mods. I'm assuming it will work as is, but we'll see very soon.
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Aug 22, 2005, 09:49:15 PM
My restrictor had two small holes like you say your does. My pump is a 94 so Ill bet they are the same series of pump. ;) I used a 3/16" bit on mine and just drilled towards the middle. No biggy.

Alright, I'll give it a go. Thanks.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Aug 23, 2005, 06:10:42 AM
Got my box drilled, tapped, and bolted back up. Just need to weld on the tabs for the ram.
Damn this was simple.
I'm hoping the chevy pump doesn't need any mods. I'm assuming it will work as is, but we'll see very soon.

I haven't done it yet but I'm in the middle of my Saginaw bow/ Chevy pump mods. I have read that you do the same thing to the restrictor plate in a GM pump.
Title: Re: Hydro Assist:box and pump mods
Post by: Roundeye on Aug 23, 2005, 08:06:28 AM
Was talking to Howe the other day who says they would port my box but install new stops within the box.  Anyone know where these stops might go internally?  Seems I can port the box easily but stops?  Also, they say that they would replace all seals.  Think this is necessary? 
Title: Re: Hydro Assist:box and pump mods
Post by: FIREBALL on Aug 23, 2005, 08:24:15 AM
It doesn't matter for you........you don't need assist with that thing parked in the driveway.
Missed you Rubithon this year.

Don't know about the stops, but all I noticed inside was a couple of O rings. Looked like they'd be easy to replace if you wanted to.
The porting was very easy. The only thing that took me some time was the top hole, because it's kind of shallow. I had to tap it, then grind the end of the tap, then tap some more until it cut the diameter enough for the fitting get more than just a couple of turns.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Aug 23, 2005, 09:26:03 AM
Was talking to Howe the other day who says they would port my box but install new stops within the box.  Anyone know where these stops might go internally?  Seems I can port the box easily but stops?  Also, they say that they would replace all seals.  Think this is necessary? 

Not sure about the stops but the couple of boxes I've done have been in good shape so there was no need to replace any seals or o-rings. I guess it might be worth it if your box needed a rebuild in the first place.
Title: Re: Hydro Assist:box and pump mods
Post by: vikingsven on Aug 23, 2005, 09:42:11 AM
What size hose is recommended for the hydro lines?
Title: Re: Hydro Assist:box and pump mods
Post by: FIREBALL on Aug 23, 2005, 10:02:45 AM
1/4 x 36" single wire hydraulic lines that were $7.35 each. PN 916-1436.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Aug 23, 2005, 10:17:03 AM
These are a pre-made off the shelf part that are much cheaper than getting a set made.  :thumbs:
Title: Re: Hydro Assist:box and pump mods
Post by: hybridtheory on Sep 05, 2005, 09:34:27 PM
i'm helping my friend do this setup on his rig, when it comes to modifing the pump, how can you do it without making the pump squeal like crazy. we drilled the restrickter to 7/32, pump squealed, drilled it out two sizes smaller same thing. what are we doing wrong. my friend put back a stock restrickter and the noise went away. please help.
Title: Re: Hydro Assist:box and pump mods
Post by: Tice on Sep 05, 2005, 09:59:36 PM
These are a pre-made off the shelf part that are much cheaper than getting a set made. :thumbs:

From a parts store or the surplus place (I forgot the name :hammerhead: ) you talked about in the beginning of this thread? I got my ram the other day :yesnod: ,I got a 2 inch, 8 inch stoke, now I need my cross over stuff!! :gap:
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Sep 06, 2005, 05:59:00 PM
i'm helping my friend do this setup on his rig, when it comes to modifing the pump, how can you do it without making the pump squeal like crazy. we drilled the restrickter to 7/32, pump squealed, drilled it out two sizes smaller same thing. what are we doing wrong. my friend put back a stock restrickter and the noise went away. please help.

From what I found, the guys who had a squaling issue after the pump mod were not running a cooler or some kind of additional fluid. When you drill the restrictor with stock capacity fluid, the fluid doesn't have enough time to cool. With my cooler added, my capacity is roughly 2-2.5 qts. You can usually get a decent tranny cooler from a parts store for $30-$40.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Sep 06, 2005, 05:59:55 PM
From a parts store or the surplus place (I forgot the name :hammerhead: ) you talked about in the beginning of this thread? I got my ram the other day :yesnod: ,I got a 2 inch, 8 inch stoke, now I need my cross over stuff!! :gap:

Those were from Surplus Center as well.
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Sep 06, 2005, 10:54:08 PM
This is on surplus center's website.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Sep 06, 2005, 11:23:38 PM
Not too bad but you'd need some 1/2" NPT-3/8 (IIRC) barbed nipples as the cooler should be plumbed into the return hose.
Title: Re: Hydro Assist:box and pump mods
Post by: GregBennett on Oct 13, 2005, 08:47:59 PM
I figured it needed a bump. Good tech write-up.  :clap2:
Title: Re: Hydro Assist:box and pump mods
Post by: FIREBALL on Oct 13, 2005, 09:00:58 PM
Anyone done, or heard of anyone doing this on a superduty? Kinda thinking about doin it to my 04 powerstroke and wondering where to drill the ford box.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Oct 14, 2005, 08:51:30 PM
Is Ford's box made by them or is it a Spicer? Should be able to see @ least one of the passages from the outside. You might go to the Ford Dealership and see if you can get a blown up picture of the steering box. That would be a ton of help.
Title: Re: Hydro Assist:box and pump mods
Post by: KYOTA on Oct 14, 2005, 09:09:18 PM
Jason I was going to suggest trying to find a scrap box that could be had for cheap or free to tear down and investigate how to tap into it then do a good one. A schematic is a good idea but I like hands on so I can see it from every angle. BTW freds40 after re-reading the HA on the cheap and this thread , I think I'm going to order up my parts and do it finally. awesome tech thread we need more like this one.
Title: Re: Hydro Assist:box and pump mods
Post by: Duffil on Oct 14, 2005, 09:13:15 PM
its not a Spicer box...can't remember who makes it though...although I do recall there being two boxes, I think it only had to do with # of splines on the sector shaft.  there was a 21 and a 25 or something...but I'm a little foggy.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Oct 15, 2005, 08:46:13 AM
Yeah if you could find a box to tear apart that would be the best bet but giving the vintage, I figure you'd probably pay a bit even for a bad box. If you could find a service manual with re building the box, you'd be in good shape because it would tell you the right way to take one apart without it falling apart.

I recently did my Spicer box for my buggy build, it was cake too.  :thumbs:
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Oct 26, 2005, 08:11:21 PM
Added an edit to post #18 thanks to some feedback from people putting this thread to good use.  :thumbs:
Title: Re: Hydro Assist:box and pump mods
Post by: sdiker on Nov 04, 2005, 05:00:28 PM
I followed the instructions for the pump mod but I have a squealing imediately doesnt even get a chance to get hot, any suggestions, I can add a cooler but this squeals right when I start it and it doesnt stop.
Title: Re: Hydro Assist:box and pump mods
Post by: Willy Mammoth on Nov 04, 2005, 05:24:30 PM
By increasing the orifice size you put a heavier load on the pump. You may need to tighten the belt.
Title: Re: Hydro Assist:box and pump mods
Post by: KYOTA on Nov 04, 2005, 07:52:54 PM
probably cavitating, I noticed on mine that with the fluxuation in fluid level from the ram moving that the stock reservoir wasnt holding enough fluid while running causing slight cavitation but overflows if shut off. Got this reservoir from speedway motors P/N 91032876-STD-10. Also running a cooler.  http://www.speedwaymotors.com/xq/aspx/display_id.2062/qx/Product.htm
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Nov 04, 2005, 10:27:16 PM
Add capacity to the system either with a cooler, a larger reservoir, or both. If the squealing doesn't go away, change out the restrictor with one from a junk yard or something to put it back to stock and see if it fixes it. Main thing is when you increase the volume flowing throught the pump, you need to add volume to the system, otherwise like Kyota said, you WILL have a cavitation problem.
Title: Re: Hydro Assist:box and pump mods
Post by: sdiker on Nov 05, 2005, 06:31:34 AM
Well the cavitation would explain the small bubbles in the fluid also and the overflow when I stop it, I will add a larger tank and a cooler,  I recently took my diesel out to replace it with a 22re that I run on propane at the same time I went to 38" Mud Grappler tires and rear disc brakes,  the rear discs did not work out so well either as the 94 yota mc would not move enough juice so I made my own plate adapter for a 3/4 ton gm mc, I am anxious to get it out and run, Thanks for the info, 
Title: Re: Hydro Assist:box and pump mods
Post by: KYOTA on Nov 05, 2005, 08:15:39 AM
the only thing that sucks is that reservoir has AN fittings and the fittings cost more than the reservoir  :qtip:
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Nov 05, 2005, 11:26:54 AM
Yeah I had looked into running ANs juist for the  :bling: factor but I changed my tune real quick when I added up the price of all the fittings I would need.

KYOTA: Did you get all the kinks worked out of the system?
Title: Re: Hydro Assist:box and pump mods
Post by: KYOTA on Nov 05, 2005, 11:47:06 AM
bled the holy hell out of the system and still have aeriated fluid so I need to install the res. to cure the cavitation problem. Weather is too crappy here now. I'm going to run the stock hoses but have to come out of the res with AN push on fittings, not going to use braided hose, trying to keep it around $50 (res was $25 and the fittings are gonna be about $30) sucks that a straight AN fitting can be had for $5-$8 but as soon as you go to a 45 or 90 then they are $20 $25  :suprised: oh well the steering will be worth it.
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Nov 05, 2005, 07:40:27 PM
A cheap way to get larger fluid capacity is to gather a couple of stock power steering reservoirs, cut the bottom out of one and the top of the other and weld the two together. You will have close to double the capacity, the stock hoses still work and it costs next to nothing assuming you have access to another reservoir. I welded three together but without my 3" body lift I wouldn't be able to close the hood. After I welded them together I was gonna put JB weld around the seams them sand it smooth so it would appear to be one piece but I got lazy and skipped the sanding. Just extra insurance against leaks and I had a couple tubes in my tool box. I'm sure a better looking one can be made but aethetics was not important to me, just it being leak free.
Title: Re: Hydro Assist:box and pump mods
Post by: sdiker on Nov 06, 2005, 03:52:38 PM
I was a bit short of change so what I did was took my pump tank and cut the top off it and welded about 3" to the middle, and squeal is gone.  
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Nov 06, 2005, 06:44:05 PM
 :thumbs:
Title: Re: Hydro Assist:box and pump mods
Post by: KYOTA on Nov 20, 2005, 04:43:32 PM
KYOTA: Did you get all the kinks worked out of the system?

UPDATE!
finally got a day off with nice weather to work on the truck. I made a bracket for the new PS reservoir, plumbed the res and topped it off. I'M CURED!!! no more cavitation or squealing. With the bigger reservoir in addition to my cooler and the extra capacity of the cylinder and lines I'd say my system holds 2.5 - 3 qts now.
 
Now about you parting the F Toy Brendan :kickbutt:
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Nov 20, 2005, 10:47:00 PM
Ummm. I haven't listened to TOOL in a long time.  :rockingout:

Glad to hear it worked out. Yeah I've been getting an ear full from all my buds. On a good note, I'm looking to get back into a Toy pickup or runner.  :gap:
Title: Re: Hydro Assist:box and pump mods
Post by: SLOYOTA808 on Nov 26, 2005, 04:08:21 AM
Awesome thread...gonna give this a stab in under a month...thanks for everyones' input...once again...GREAT THREAD!!!!
Title: Re: Hydro Assist:box and pump mods
Post by: waskillywabbit on Dec 04, 2005, 07:11:54 PM
A cheap way to get larger fluid capacity is to gather a couple of stock power steering reservoirs, cut the bottom out of one and the top of the other and weld the two together. You will have close to double the capacity, the stock hoses still work and it costs next to nothing assuming you have access to another reservoir. I welded three together but without my 3" body lift I wouldn't be able to close the hood. After I welded them together I was gonna put JB weld around the seams them sand it smooth so it would appear to be one piece but I got lazy and skipped the sanding. Just extra insurance against leaks and I had a couple tubes in my tool box. I'm sure a better looking one can be made but aethetics was not important to me, just it being leak free.

What material are the OEM reservoirs?  I've also read somewhere about someone adding a piece of 3" exhaust pipe in the middle...seems like it was sickfab, but now I can't find it?  :headscratch:

:yupyup:
Title: Re: Hydro Assist:box and pump mods
Post by: KYOTA on Dec 04, 2005, 07:54:39 PM
search pirate its there I remember seeing it while doing all my homework
Title: Re: Hydro Assist:box and pump mods
Post by: waskillywabbit on Dec 04, 2005, 08:12:54 PM
search pirate its there I remember seeing it while doing all my homework


I found this on Pirate.

http://www.pirate4x4.com/forum/showthread.php?t=271149&highlight=reservoir

I'll find a couple at a boneyard and see about brazing them together.  It seems that the larger reservoir is a must.

:yupyup:
Title: Re: Hydro Assist:box and pump mods
Post by: KYOTA on Dec 04, 2005, 08:23:51 PM
yep that be the thread
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Dec 06, 2005, 07:27:22 AM
Are you guys running the stock power steering cooler tube that runs behind the grille?
Title: Re: Hydro Assist:box and pump mods
Post by: waskillywabbit on Dec 06, 2005, 06:47:32 PM
Are you guys running the stock power steering cooler tube that runs behind the grille?

I got a tube/fin tranny cooler off Summit for like $50 shipped...it is about 12" x 12" or so.  Just put it in the loop where the OEM one was...seems to work fine thus far.  Found another OEM reservoir today to make taller...and that should fix my cavitation issue and some new seals to fix the suction port leak.   :hammerhead:

:yupyup:
Title: Re: Hydro Assist:box and pump mods
Post by: KYOTA on Dec 06, 2005, 07:11:46 PM
B&M tranny cooler in line on mine
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Dec 06, 2005, 09:47:17 PM
I ran my 10x16 tranny cooler in line on the return side. Works great.
Title: Re: Hydro Assist:box and pump mods
Post by: FatAzzRunner on Dec 17, 2005, 04:13:33 PM
Not too bad but you'd need some 1/2" NPT-3/8 (IIRC) barbed nipples as the cooler should be plumbed into the return hose.

Probablly just missed it but do you have the part number on these???

Thanks

Title: Re: Hydro Assist:box and pump mods
Post by: synwars on Jan 20, 2006, 04:10:18 PM
Thanks Freds40 & Kyota, makes life easier you guys doing all the work. :thumbs: I wouldn't be attempting this without this thread!!! Collecting all my parts and in a couple weeks, install time!!!

Have you guys thought of running steel braided lines just in case something snags it, like say a branch or something? Where we crawl, there are a lot of trees, and some are fallen from storms and such, so its not uncommon to drag a couple branches in the front axle. :dunno: Or am I just being overly paranoid? I suppose it would be worth it then to carry a couple plugs just in case eh? Plug it up in case you bust one open?

Sammy.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Jan 20, 2006, 05:43:53 PM
My thought on that is rubber hose would rip where as the steel braided would possibly hold longer than the threads in the box. Of course for the price of custom length steel braided, you could probably have a few sets of spare hoses @ $5-$6 a piece. Good luck with the swap, you'll like the results.  :yesnod:
Title: Re: Hydro Assist:box and pump mods
Post by: Non Urban on Jan 29, 2006, 08:23:09 PM
Wanted to thank you for the great post.  Heres a link to how I increased my res cap.
http://www.pirate4x4.com/forum/showthread.php?t=437566
Title: Re: Hydro Assist:box and pump mods
Post by: KYOTA on Jan 29, 2006, 08:45:53 PM
Wanted to thank you for the great post.  Heres a link to how I increased my res cap.
http://www.pirate4x4.com/forum/showthread.php?t=437566


nice writeup thanks for adding your input to the thread  :beer:

Brendan- I'm moving this and the HAOTC thread into 79-95 tech
Title: Re: Hydro Assist:box and pump mods
Post by: TNToy on Feb 09, 2006, 08:04:15 AM
Just a thought, but make sure you guys are filling your systems with ATF where required. Running actual power steering fluid in a system desigend for ATF ususally Results in some serious issues with seals leaking down the road.

I'm fairly sure most Toyota P/S systems require ATF, not P/S fluid.
Title: Re: Hydro Assist:box and pump mods
Post by: Tice on Feb 09, 2006, 06:27:21 PM
Just a thought, but make sure you guys are filling your systems with ATF where required. Running actual power steering fluid in a system desigend for ATF ususally Results in some serious issues with seals leaking down the road.

I'm fairly sure most Toyota P/S systems require ATF, not P/S fluid.

Do you happen to have a Toy manual on hand to check this? :headscratch:
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Feb 09, 2006, 07:59:10 PM
I am curious as well. If he is right I will need to drain mine for sure.  ???
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Feb 09, 2006, 08:35:55 PM
Don't remember who I discussed this with when I set mine up but we came to the conclusion that PS fluid was the way to go. That's what I always ran in the system even prior to the mods and my box was tight as can be when sold.
Title: Re: Hydro Assist:box and pump mods
Post by: GregBennett on Feb 09, 2006, 08:49:51 PM
My 1985 Factory Toyota Manual says use ATF Dexron or Dexron II.

My 1994 Factory Toyota Manual says the samething - ATF Dexron or Dexron II.

My Haynes Manual says the same.
Title: Re: Hydro Assist:box and pump mods
Post by: Renaud33 on Feb 22, 2006, 11:10:42 AM
I am almost ready to start reassembling my box.  There is very little information on reassembly.  Maybe I missed it.   :dunno:  What do I need to do to ensure that I have it back together correctly??  I am speaking in terms of the splines lining up as they were when everything was removed.

Thanks,
Kurt
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Mar 05, 2006, 01:37:50 PM
I am almost ready to start reassembling my box.  There is very little information on reassembly.  Maybe I missed it.   :dunno:  What do I need to do to ensure that I have it back together correctly??  I am speaking in terms of the splines lining up as they were when everything was removed.

Thanks,
Kurt

Kurt did you get it back together? How does it work?
Title: Re: Hydro Assist:box and pump mods
Post by: Renaud33 on Mar 06, 2006, 05:42:52 AM
Kurt did you get it back together? How does it work?
I got it back together.  I think I got it lined up correctly.  If not it should be very close.  I don't have my hydro installed.  I will email you an update.
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Mar 19, 2006, 04:37:13 PM
I got a different reservoir made. I replaced my conglomeration of 3 tanks welded together with one tank split in half and a 4" section of 3.5" exhaust pipe welded in place. The tank I made first must have restricted the flow with the stock baffling still in place as the pump still cavitated.

3.5" exhaust pipe is about 10$ a foot where I am at and must be ordered, but I discovered that the outer casing of most cheap glasspack mufflers is 3.5" pipe. If you chop the ends of the muffler off, the inside will slide right out leaving the round outer 3.5" pipe. The diameter of the stock tank is damn near 3.5" and with a little work the pipe can be slide into the top but the bottom must be butted up against the exhaust pipe then welded. This is a very cheap and easy setup if you need more fluid capacity.
Title: Re: Hydro Assist:box and pump mods
Post by: AJ Johnson on Mar 31, 2006, 11:35:21 PM
one thing to add to this thread... When drilling your box, put a magnet, weather it be a pen type or  whatever on the backside of where you are drilling. It will save time in cleanup, cause the magnet will gather the chips.
Title: Re: Hydro Assist:box and pump mods
Post by: ddog87 on Jun 02, 2006, 08:59:43 AM
Once out, turn the restrictor upside down on a hard surface and tap a couple of times. A bushing will fall out. Now drill the orifice in the restrictor out to 13/64 and then bolt it back together.
Stupid question, do you put the bushing back in??? thanks
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Jun 03, 2006, 12:17:05 AM
Yup. Sorry, always find another detail I left out.
Title: Re: Hydro Assist:box and pump mods
Post by: oz31p on Jun 11, 2006, 08:09:40 AM
is this to drive at 80 down the freeway??

just seems a little scary
Title: Re: Hydro Assist:box and pump mods
Post by: FatAzzRunner on Jun 11, 2006, 08:34:49 PM
I wouldnt do 80 down the freeway with mine.

I just finished mine recently and going 40 on the street with 5 psi in the tires felt safe as before but today I aired up to 36 psi and just went around my neighborhood and it felt MUCH looser and like it MAY be unsafe at highway speeds

just my .02

Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Jun 12, 2006, 06:43:46 PM
I've been thinking about this a bit lately as I've had more people ask me about it. I've been thinking that when the orrifice is opened up, it makes the system extremely responsive. I'm thinking that if you opened it up, say half of the amount I originally did, it "should" be a decent balance between responsiveness and sluggishness. I no longer run a Toy box and pump, otherwise I'd find a replacement orrifice and try stepping up in size until I got the right balance. For mine, I ran my SXs @ 15 and would do 40-50 regularly. It was awesome on the trail so I never put much thought into better street ability.
Title: Re: Hydro Assist:box and pump mods
Post by: boblamborghini on Jul 20, 2006, 03:02:04 AM
nice post ! i need to do it on my 81 because my diff is welded and i would like to know what size of ram you used ?
Title: Re: Hydro Assist:box and pump mods
Post by: KYOTA on Jul 20, 2006, 05:36:17 PM
theres a link to the other thread ( Hyd assist on the cheap) in the very first post of this thread. These 2 threads are invaluable when doing hydro asst. add to favorites
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jul 26, 2006, 03:14:41 PM
Has anyone done this set up, but with a late model Sawginaw pump? I am wondering if I will have the problem with cavitaion. The rest of my system is the same as most of you. I just happen to have a 4.3L vortec in my truck.
Title: Re: Hydro Assist:box and pump mods
Post by: Tice on Jul 26, 2006, 04:45:03 PM
It should be the same. You may have to had more capacity to your resivour but other than that it should work.
Title: Re: Hydro Assist:box and pump mods
Post by: FIREBALL on Jul 26, 2006, 05:20:46 PM
Works just fine. I have the exact setup on my rig and have no probs.
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Aug 17, 2006, 12:29:12 AM
When I do my conversion on my 82 that has a Vortec with the Saginaw pump I will let you know what happened. I will ad a cooler to the return line to give some more capacity. I am also doing this to a 92 truck with Toy pump. I will enlarge the restrictor as mentioned in Hydro Assist On the Cheap. I will ad a cooler, but wondering if I can ad a secondary reservoir instead of brazing on an extension to the Toy Res.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Aug 17, 2006, 07:35:05 AM
On the Sag pump, you can open up the restrictor as well. For your res. you can do a secondary canister, only down sides I could see would be it will need to be a flow through as a T in the line won't force the fluid through it and also it's 1 more thing to mount under the hood.
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Aug 17, 2006, 10:59:07 AM
I think I will need to seriously consider running more capacity with my Sag. A few years ago I was ditching the man when I was wheelin where I shouldn't be at 2 a.m. I was haulin down a twisty fire road and that alone made my fluid boil over.
Title: Re: Hydro Assist:box and pump mods
Post by: black92se on Aug 30, 2006, 02:57:29 PM
I thought I would say that I just used this to port my box, I am wheeling a nissan so I gotta figure out how to open up my nissan pump. Anyways, this worked out great. I used a magnet to get most of the pieces, it worked gerat right after the hole was drilled.
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Sep 11, 2006, 10:40:27 AM
Has anybody noticed an increase in internal box failure with hydro assist? The internals of my box exploded after 3 trail rides since it was ported.
Title: Re: Hydro Assist:box and pump mods
Post by: Renaud33 on Sep 11, 2006, 10:54:37 AM
Guess I better keep my spare boxes.  Haven't had any issues yet.
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Sep 19, 2006, 10:25:48 AM
So I succesfully finished the install on the 92. Worked out great. Bled the system with the wheels up in the air. Because I made the factory reservoir 3" taller I had to remove the EGR valve bracket. If you do this remember to put back the small bolt that held the bracket in or else you will have a idle problem because of a vacuum leak.

Now I am going to do it on my 82. Does any one have a source for a bolt on collar that goes on Marlins' tie rod so I can weld tabs for the ram.?
Title: Re: Hydro Assist:box and pump mods
Post by: Renaud33 on Sep 19, 2006, 10:45:07 AM
Does any one have a source for a bolt on collar that goes on Marlins' tie rod so I can weld tabs for the ram.?
I don't know that this is quite what your looking for.  Maybe worth consideration. 
http://www.pobcoplastics.com/pg_74.htm

I just welded tabs on the tie rod.  Purchased my tabs from this place.
http://www.aa-mfg.com/pdshop/shop/
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Sep 19, 2006, 11:47:23 AM
Something like this.

http://www.mad4wd.com/tek9.asp?pg=products&specific=jrgrkme0

They just don't make it the size that fits Marlin's tie rod.
Title: Re: Hydro Assist:box and pump mods
Post by: beafire on Sep 29, 2006, 02:44:32 PM
Very nice setup. Thanks
Title: Re: Hydro Assist:box and pump mods
Post by: BigBs84 on Oct 18, 2006, 12:14:20 PM
good job! this really helped save me $300 on a new predrilled box
Title: Re: Hydro Assist:box and pump mods
Post by: dov'd85 on Oct 18, 2006, 10:36:17 PM
do the high temp hoses come with ends on them? i just bought a ram assist and i got a set of hoses with it but i want to carry a few extra's i have heard of people tearing them off and i don't want to spend 20+ a line for anothe set

great right up time to go fix some stuff on my set up...! :beer:

james
Title: Re: Hydro Assist:box and pump mods
Post by: Tice on Oct 19, 2006, 10:13:09 PM
The hose's from Surplus Center come with ends on them, they only run about 8 bucks too.
Title: Re: Hydro Assist:box and pump mods
Post by: dov'd85 on Oct 19, 2006, 11:21:09 PM
The hose's from Surplus Center come with ends on them, they only run about 8 bucks too.

thanks man but we don't have a surplus store in washington like shmucks and napa? B&B?
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Oct 20, 2006, 12:22:31 AM
Surplus Center is on the net. They are pretty quick about shipping and it'll still be cheaper than most kit form hoses.
Title: Re: Hydro Assist:box and pump mods
Post by: dov'd85 on Oct 20, 2006, 09:06:10 AM
do you have a part number and a web site?

james
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Oct 20, 2006, 10:59:37 AM
http://board.marlincrawler.com/index.php/topic,4699.0.html

The answers you seek are hidden within....     :talkingn:   :laugh: 

Sorry, it's one of those mornings. If you take a peek in there, all the PNs I used are there, I just didn't feel like searching my old thread.  :hammerhead:
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Oct 26, 2006, 09:08:18 PM
Here is a picture of the modified P.S. reservoir and the cooler I installed on Rokcrawlintoy's rig. No squeeling and it stays cool.
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Oct 26, 2006, 09:12:49 PM
Here is the 6" ram, hoses, and fittings.
Title: Re: Hydro Assist:box and pump mods
Post by: Mikeyg79 on Nov 04, 2006, 10:48:36 AM
I've got an IFS box that I bought second hand, pre-tapped...
when looking into the empty box, it looks like the fitting in the "TOYODA" will be hit by the sector shaft gears as you turn.
is that a problem for anyone?
Title: Re: Hydro Assist:box and pump mods
Post by: Elvota on Dec 13, 2006, 02:14:49 PM
So, how many of you would do this mod on a daily driver?  Would it be to twitchy to drive on the freeway? 

Any thoughts as to how one might be able to turn the RAM off?  Just throwing out ideas here, but could a valve be installed somewhere that would essentially stop fluid going to the RAM assist when you were driving on road.  Then, just flip the switch and start crawling.

This of course may not be practical or impossible... but I would appreciate feedback if anyone has any.   :yesnod:
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Dec 13, 2006, 11:21:01 PM
So, how many of you would do this mod on a daily driver?  Would it be to twitchy to drive on the freeway? 

Any thoughts as to how one might be able to turn the RAM off?  Just throwing out ideas here, but could a valve be installed somewhere that would essentially stop fluid going to the RAM assist when you were driving on road.  Then, just flip the switch and start crawling.

This of course may not be practical or impossible... but I would appreciate feedback if anyone has any.   :yesnod:

You would still have to fight the drag of the ram pushing fluid back and forth in the lines. I think that is how it would work at least. I don't know if I would do it on a daily driver after how mine turned out. I was not able to drill my restrictor so it is pretty slow. I have had a few hairy incidents with hitting curbs while hot rodding around corners and coming close to entering the neighbor's yard.

Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Dec 14, 2006, 02:09:01 AM
You would still have to fight the drag of the ram pushing fluid back and forth in the lines. I think that is how it would work at least. I don't know if I would do it on a daily driver after how mine turned out. I was not able to drill my restrictor so it is pretty slow. I have had a few hairy incidents with hitting curbs while hot rodding around corners and coming close to entering the neighbor's yard.



Why were you not able to drill out your restrictor?
Title: Re: Hydro Assist:box and pump mods
Post by: Elvota on Dec 14, 2006, 11:44:31 AM
Anyone think this idea would work...

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi44.photobucket.com%2Falbums%2Ff15%2FElvota%2FValvesOpen.jpg&hash=d8d88d98588d6a8c3d03f68890abede4)

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi44.photobucket.com%2Falbums%2Ff15%2FElvota%2FValvesClosed.jpg&hash=e9bbb7a9d129844856a85a43732145f1)

In effect, would isolate the RAM unless the valves where open, and would allow the RAM to run in a closed loop when valves where shut which would allow the RAM to move freely against the stock steering box pressure... almost like a steering dampner if anything.

Just seems like this might be a good idea for a daily driver.  No change on road (valves closed) and full ability to crawl with low PSI, etc off road (valves open).  Off course this assumes such valves are even available.
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Dec 14, 2006, 05:53:50 PM
Why were you not able to drill out your restrictor?

My pump would squeal terribly.
Title: Re: Hydro Assist:box and pump mods
Post by: Duffil on Dec 14, 2006, 07:10:37 PM
Anyone think this idea would work...
In effect, would isolate the RAM unless the valves where open, and would allow the RAM to run in a closed loop when valves where shut which would allow the RAM to move freely against the stock steering box pressure... almost like a steering dampner if anything.

Just seems like this might be a good idea for a daily driver.  No change on road (valves closed) and full ability to crawl with low PSI, etc off road (valves open).  Off course this assumes such valves are even available.
It would work, but, as previously stated, that is a lot of drag.  The ram has to circulate fluid from one side, through the hoses, to the other side. 

And yes, valves are available.
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jan 10, 2007, 09:05:12 AM
Here is a picture of the modified P.S. reservoir and the cooler I installed on Rokcrawlintoy's rig. No squeeling and it stays cool.

Where did you buy the cooler and how much? Thanks much
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jan 10, 2007, 09:13:43 AM
Yota4life-

I bought the cooler from PAW 818-678-3000

It was 27.95 and came with the low pressure hoses.

It is a Hayden Part # 401 which you can also get from JEGS and SUMMIT.  :beer:
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jan 10, 2007, 09:22:38 AM
I couldnt find it on jegs or summit...??  :confused:
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jan 10, 2007, 11:06:32 AM
Yota4life-

Jegs part # for the equivalent from Flexalite is #400-3810 @ $26.99

http://www.jegs.com/webapp/wcs/stores/servlet/productitem_10001_10002_756324_-1_311512
Title: Re: Hydro Assist:box and pump mods
Post by: KYOTA on Jan 10, 2007, 12:05:43 PM
The hose's from Surplus Center come with ends on them, they only run about 8 bucks too.

that reminds me I need to get a couple a spares. After the last trip I noticed on of my lines had been getting :bumpinbutts: bettween the bumpstop and one of the u bolts and got tore up pretty good. Those hoses just arent something you can ask "Hey you got an extra hydro hose?" out on the trail. You'd be pretty much screwed.
Title: Re: Hydro Assist:box and pump mods
Post by: KYOTA on Jan 10, 2007, 12:09:25 PM
I've got an IFS box that I bought second hand, pre-tapped...
when looking into the empty box, it looks like the fitting in the "TOYODA" will be hit by the sector shaft gears as you turn.
is that a problem for anyone?

Tapped the hole too deep, I did the same thing and yes it hit. Easy fix, pull the fitting and grind the threads down and reinstall, keep doing this till the fitting is tight and will clear the gear
Title: Re: Hydro Assist:box and pump mods
Post by: Tice on Jan 10, 2007, 02:17:49 PM
that reminds me I need to get a couple a spares. After the last trip I noticed on of my lines had been getting :bumpinbutts: bettween the bumpstop and one of the u bolts and got tore up pretty good. Those hoses just arent something you can ask "Hey you got an extra hydro hose?" out on the trail. You'd be pretty much screwed.


I'm glad you said that, I've been saying for months now that I need spares!!!. :disturbed:
Title: Re: Hydro Assist:box and pump mods
Post by: watkins on Jan 17, 2007, 09:02:55 AM
Turn the input shaft to the left until it stops. Now remove the 4 input shaft housing bolts.
keeping the input turned to the left helps keep it together.  Mine had some water contamination and while spraying it out with brake cleaner I turned the input to the right a little to far and OOPS! damn ball bearings went everywhere when it came apart! only way i found to get them back in was to take the 2 piece tube out and work them back in until full, then using 1 of the tube pieces and turning the assembly up sideways as to get the tube level horizontly put the rest of the bearings in and slowly work the other half of the tube in and secure it. wish i had counted all the ball bearings but forgot, hope i found all of them!

great write up on the box!

wade
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Jan 17, 2007, 10:24:29 AM
that reminds me I need to get a couple a spares. After the last trip I noticed on of my lines had been getting :bumpinbutts: bettween the bumpstop and one of the u bolts and got tore up pretty good. Those hoses just arent something you can ask "Hey you got an extra hydro hose?" out on the trail. You'd be pretty much screwed.

I wrapped my hoses with heater hose so they are protected. I did this after wrecking one hose. So far works like a champ.
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Jan 17, 2007, 10:26:36 AM
keeping the input turned to the left helps keep it together.  Mine had some water contamination and while spraying it out with brake cleaner I turned the input to the right a little to far and OOPS! damn ball bearings went everywhere when it came apart! only way i found to get them back in was to take the 2 piece tube out and work them back in until full, then using 1 of the tube pieces and turning the assembly up sideways as to get the tube level horizontly put the rest of the bearings in and slowly work the other half of the tube in and secure it. wish i had counted all the ball bearings but forgot, hope i found all of them!

great write up on the box!

wade

Post up when your box fails. I predict the balls will get pulverized and leave you with no steering.
Title: Re: Hydro Assist:box and pump mods
Post by: watkins on Jan 17, 2007, 07:22:05 PM
Post up when your box fails. I predict the balls will get pulverized and leave you with no steering.
daaaaaannnng! pulverizing my balls is not good! maybe, maybe not!

the tube i refer to limits how far in and out the balls can go. after i figured that out i believe after i got them all in i'll be OK. we'll see. it was a high mile box but it was tight and had no leaks. i'll post on it later.

wade
Title: Re: Hydro Assist:box and pump mods
Post by: Hyena on Jan 21, 2007, 09:29:15 PM
i didn't read it in this thread but is anyone running any type of sealing stuff like teflon tape on the threads of the fittings and ram?  i just got my box tapped and was wondering if it is needed or not.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Jan 21, 2007, 10:17:39 PM
You shouldn't need t-tape. NPT fittings are taper seat fittings so they seal on themselves. If you throw t-tape on, it shouldn't matter.
Title: Re: Hydro Assist:box and pump mods
Post by: Hyena on Jan 21, 2007, 10:28:14 PM
ok, thanx dude.
Title: Re: Hydro Assist:box and pump mods
Post by: Tice on Jan 22, 2007, 10:15:21 AM
I had to use tape on one fitting, but it was my fault. :smack:
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Jan 22, 2007, 10:49:48 AM
I have done two boxes with no tape and no leaks.
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jan 23, 2007, 06:59:43 PM
Im having a problem with the restrictor. I cant get the bushing to come out. I was slamming it hard on a steel table and couldnt get it to budge. Any pointers?
Title: Re: Hydro Assist:box and pump mods
Post by: Tice on Jan 23, 2007, 08:45:14 PM
It should just fall out!! :dunno:  Miine did. But after drilling it out, it made my pump squel really bad at 1000 rpm's and higher. Plus I would have to have the rpm's up for my ram to work!! :dunno:  Try it in stock form first and see how it works. I know if it doesn't them you'll have to take it apart and bled the system again.  Also,I have my modified one still I just have to remember where I put it!! :smack: So if you can't get the bushing out you can have mine.  Just throw down a few bucks for shipping. :thumbs:
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jan 23, 2007, 10:08:40 PM
Well i turned it upside down and stuck a rod in there and hit it with the hammer and there was a little peice that had 2 holes in it and that just broke out. So i might have just ruined it but i still cant get it out. I might take you up on that Tice
Title: Re: Hydro Assist:box and pump mods
Post by: Tice on Jan 24, 2007, 05:42:04 AM
Not a problem, Let me look for it today after I get home from work. :beerchug:
Title: Re: Hydro Assist:box and pump mods
Post by: KYOTA on Jan 24, 2007, 03:02:51 PM

I'm glad you said that, I've been saying for months now that I need spares!!!. :disturbed:

my spares showed up today have you ordered yours?  :greengrin:
Title: Re: Hydro Assist:box and pump mods
Post by: boggerunner on Jan 24, 2007, 04:17:55 PM
i love this setup, and when i get some spare funds after the longs, this is next on my list
Title: Re: Hydro Assist:box and pump mods
Post by: Tice on Jan 24, 2007, 05:54:09 PM
my spares showed up today have you ordered yours?  :greengrin:



 :smack: No,  :hammerhead:
Title: Re: Hydro Assist:box and pump mods
Post by: Tice on Jan 25, 2007, 06:56:42 PM
Well i turned it upside down and stuck a rod in there and hit it with the hammer and there was a little peice that had 2 holes in it and that just broke out. So i might have just ruined it but i still cant get it out. I might take you up on that Tice

Shoot me a p.m. with your address if you want it. I haven't had a chance to look for it but I think I know where it's at.
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jan 25, 2007, 07:34:15 PM
Shoot me a p.m. with your address if you want it. I haven't had a chance to look for it but I think I know where it's at.

You know what im going to drill it out with the bushing in there and run it. If it dosent work then i will let you know. Thanks a lot though i might need it
Title: Re: Hydro Assist:box and pump mods
Post by: Tice on Jan 25, 2007, 08:06:20 PM
You know what im going to drill it out with the bushing in there and run it. If it dosent work then i will let you know. Thanks a lot though i might need it

Any time! :beer:
Title: Re: Hydro Assist:box and pump mods
Post by: Burl on Jan 26, 2007, 11:43:19 AM
This is an in depth layout of how I have drilled/tapped Toyota IFS steering boxes for Hydro assist as well as a simple mod to allow your pump to keep up. I was able to get ahold of a box (thanks toecutter) so I could show a bit more detail than my original thread on just setting up my system. This is intended to give a bit more info on the time, tools, and ability needed to do this mod. I was nervous about it the first time but once I got into it, I was upset at how difficult many people made the job sound. If you want to give me $75 to do your box, that's fine but this is not about me making money, it's to show that it can be done easily by most people. It took me about 2 hrs. from start to finish and that was with taking all the pictures. So if you have the ability, a bit of patience, and don't have the cash to have someone elso do it, try it yourself.

And this is the rest of setting up my Hydro assist system for cheap.   http://board.marlincrawler.com/index.php?topic=4699.0
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Jan 26, 2007, 12:26:22 PM
Well i turned it upside down and stuck a rod in there and hit it with the hammer and there was a little peice that had 2 holes in it and that just broke out. So i might have just ruined it but i still cant get it out. I might take you up on that Tice

It sounds like you have a 3rd gen pump and that is how the restrictor is. That is what you were supposed to drill out but you broke it instead.
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jan 26, 2007, 03:52:37 PM
Ya thats what i was thinking. Cool i guess i will just throw it back in and run it.
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jan 28, 2007, 12:12:07 AM
Have any of you heard any info on drilling out the H.P. intake port on a Toy box when using a Saginaw box. I heard this may stop squeeling because the Toy box restricts the flow from the Sawginaw pump.
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Jan 29, 2007, 09:48:37 AM
 :headscratch: What are you trying to say? Can you elaborate on what set up you have and what you are talking about?
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jan 30, 2007, 01:43:27 AM
Yota4life-
I had the same issue happen with with the resrictor. When trying to punch out the restrictor I ended up knocking a hole between the two holes. Left it that way and it ran fine. This was on a 1992 box.

Alwayz broken-
I will try to take a picture of what I am talking about in a day or two.

Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Jan 30, 2007, 12:31:16 PM

Have any of you heard any info on drilling out the H.P. intake port on a Toy box when using a Saginaw box. I heard this may stop squeeling because the Toy box restricts the flow from the Sawginaw pump.


You want to drill out the intake port on a Toyota steering box or Saginaw box? What pump are you running? Saginaw pump? I don't know anything about b*std setups using GM parts. I am curious at how much more flow a saginaw pump would provide and how the heck you would get that huge thing mounted on a toy engine unless you have a 4.3L.
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jan 30, 2007, 06:42:33 PM
Yota4life-
I had the same issue happen with with the resrictor. When trying to punch out the restrictor I ended up knocking a hole between the two holes. Left it that way and it ran fine. This was on a 1992 box.

Ya i knocked the whole peice out. Did you drill it out after that? Thats what im going to do.
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jan 30, 2007, 07:48:49 PM
Yota4life-
I could not get the restrictor to fall out so that I could drill it. In trying to tap it out I ended up punching through just between the two holes. A little piece between the two holes cracked out. The two holes became one in a not so round pattern. I did not drill it out as that would have just made too big of a hole. I ran it figuring that if it did not work I would just by a new piece. Have not had any issues.

alwayzbroken-
I have a 4.3L vortec in my 82 truck with Sawginaw pump. BTW this is a different truck than the one I am talking about with Yota4life. Anyways... My 82 will get a Toy box when I do my histeer. I have read a thread on pirate about a guy that was running a Saginaw pump and Toy box that had some squeeling that he could not get rid of no matter what he did. A shop had told him that the pump was putting out more flow than the box was designed to flow at with the O.E. pump. He ended up drilling a larger hole on the intake (H.P.) side of the box. Just where the fitting screws down onto. He says the squeeling went away.

What I am asking is if anyone else has heard of this mod and how it worked or did not work. :hammerhead:
Title: Re: Hydro Assist:box and pump mods
Post by: Hyena on Feb 02, 2007, 09:07:37 PM
so does anyone know of online instructions on how to rebuild the steering box?  with good pics?  i am about ready to throw this pos out the door.
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Feb 03, 2007, 10:12:38 AM
Anyone have any pointers on putting the 44 little ball bearing back in? After spending 4 hours rebuilding the box i now need to reasemble it. Any help?
Title: Re: Hydro Assist:box and pump mods
Post by: Tice on Feb 03, 2007, 11:27:00 AM
I can't remember right off hand, but I think I installed them through that little"tube". :headscratch: I have another box thats apart. If I get time today I'll try and figure it out for ya! :thumbs:
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Feb 03, 2007, 01:27:14 PM
Anyone have any pointers on putting the 44 little ball bearing back in? After spending 4 hours rebuilding the box i now need to reasemble it. Any help?

Oh no! Those things are a sumbitch. Was it necessary to take the piece that holds the balls apart? I predict your box will fail unless you get those things back in perfect.
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Feb 03, 2007, 02:26:41 PM
No i didnt mean to but i was rebuilding it so i was moving it around and it just unthreaded a little and they started to fall out. I know about the little tube your talking about Tice. Note to anyone reading this. It is a major PITA to rebuild one of these boxes. I dont even know if i can get it back together right.
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Feb 03, 2007, 02:43:09 PM
The boxes are really simple and easy to do unless you unscrew the gear and the balls fall out. Follow the instructions Freds40 took the time to post for everybody and you will have no problems. Freds40 listed how to remove the gear assembly without the balls falling out. I have done a few of these now and I think I could have it all done and back together in under an hour easily.
Title: Re: Hydro Assist:box and pump mods
Post by: banthis on Feb 03, 2007, 03:52:46 PM
Ok, so after reading all this I'm still not clear- way back when I took apart my old gear box and damn if those balls didn't go flying- but I took out the steering shaft first, and never even got the sector shaft out.

It was confusing the hell out of me to see what freds40 was getting out because it didn't look anything like what I had seen before.
Now I am thinking that when I took out the steering shaft first, I inadvertantly dissassembled the whole whole steering shaft thing and the balls spilled out of the guts (used grease as mentioned before to line the internal worm gear then thread the actual steering shaft back in to fix it) and it seemed to work ok.

However, if I'm reading this right and follow freds40's instructions removing sector shaft first, that will permit the WHOLE steering gear part to come out and the internals with the balls will not be exposed unless that little tube I saw on freds40's pictures comes loose then you just reload through the tube?

I was starting to think there were two different kinds of gear boxes and I ended up with the sucky one.

Is this correct?  Thanks.
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Feb 03, 2007, 07:06:53 PM
I would have to go back and re-read but as long as the box was all the way to the left I believe the entire piston assembly should just pull out. Do not thread the shaft out. I don't know, it sure wasn't that complicated as long as you follow the directions and the order of disassembly. I have done it on a 1986 and 1992 box with ease.
Title: Re: Hydro Assist:box and pump mods
Post by: skii4x4 on Feb 08, 2007, 02:01:13 PM
I have a quick question for you guys.

I have all of the tools needed but I am trying to find the correct size tap to use for the steering box.  I picked up a 1/4" tap and it just seems way to small.  The drill bit with it is 13/64ths.  I though you were supposed to drill the hole out with 7/16.  A 1/4 tap would be too small.

So my question is, what size tap should I use or am I just picking up the wrong size tap from the hardware store?

Thanks for your help and write up,
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Feb 08, 2007, 02:51:14 PM
I have a quick question for you guys.

I have all of the tools needed but I am trying to find the correct size tap to use for the steering box.  I picked up a 1/4" tap and it just seems way to small.  The drill bit with it is 13/64ths.  I though you were supposed to drill the hole out with 7/16.  A 1/4 tap would be too small.

So my question is, what size tap should I use or am I just picking up the wrong size tap from the hardware store?

Thanks for your help and write up,


The Tap must be 1/4 NPT.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Feb 08, 2007, 08:34:29 PM
Ask the hardware store for a 1/4" NPT (national pipe thread) tap. It is roughly3/8-1/2" in diameter.
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Feb 08, 2007, 08:47:50 PM
Well for anyone rebuilding their box heres a "How too" http://web.archive.org/web/20050322011020/http://128.83.80.200/taco/box.html

I got my box back together and believe it or not it works! For the square cut teflon o rings just use a hose clamp to make them smaller once you get them on. Theres a pretty easy way to get the 44 little balls back in place.

On the piston the worm gear threads into, it has a cap that can be unthreaded and taken off. Then fill the little "tube with as many as you can and put the worm gear in an inch or so. Dump the bearing into the top of the piston and thread it in and they will fall into place. Took me about 5 minutes to get them all back in.
Title: Re: Hydro Assist:box and pump mods
Post by: watkins on Mar 14, 2007, 06:45:15 AM
I would have to go back and re-read but as long as the box was all the way to the left I believe the entire piston assembly should just pull out. Do not thread the shaft out. I don't know, it sure wasn't that complicated as long as you follow the directions and the order of disassembly. I have done it on a 1986 and 1992 box with ease.

if you keep it to the left, it will keep them in, i was cleaning mine and turn it to the right and spilled mine. feeding them back into the 2 piece tube was the only way i found to get them back in. been on several rides and it works great except for a little pump roar.

wade
Title: tapping for idiots
Post by: leorn on Mar 17, 2007, 07:48:27 PM
this is really gonna show my mad fabrication skillz :hammer: Is it better to use a drill with npt threads, or better by hand?  I know it is mentioned that a drill was used earlier in the thread, but didn't know if thats a fast way or better way???
Title: Re: Hydro Assist:box and pump mods
Post by: alwayzbroken on Mar 18, 2007, 11:12:40 AM
this is really gonna show my mad fabrication skillz :hammer: Is it better to use a drill with npt threads, or better by hand?  I know it is mentioned that a drill was used earlier in the thread, but didn't know if thats a fast way or better way???

Do it by hand.
Title: Re: Hydro Assist:box and pump mods
Post by: Gittinit on Mar 18, 2007, 07:03:30 PM
I just did it ... no drill for me I started the tap with my fingers then used a wrench for some leverage to cut the threads in deep. I would be afraid of getting the tap in crooked with a drill.
Title: Re: Hydro Assist:box and pump mods
Post by: leorn on Mar 19, 2007, 08:14:12 AM
I just did it ... no drill for me I started the tap with my fingers then used a wrench for some leverage to cut the threads in deep. I would be afraid of getting the tap in crooked with a drill.
Thats what I am afraid of.  Thanks for the quick replys.  i can't wait to be able to turn again! :rockingout:
Update:
I took care of it last night.  Everything was as described.  I would say you will want a vise. 

Also had a buddy show me how to avoid drilling too deep.  Since you can see the depth of the vein you are drilling you take the bit and put a piece of tape at the point where you want to stop.  takes out the guesswork.  very little chance of drilling to deep that way.

As far as road manners.  I think it feels like a lincoln or caddy from the late 70s early 80s.  Felt great to me!
Title: Re: Hydro Assist:box and pump mods
Post by: sof'indetermined on Mar 31, 2007, 02:16:45 PM
just wanted to say thanks. i just walked in from my garage after completing my ha. pretty excited. i dont think i would have even thought of doing it if i didnt read this. it was real easy.
Title: Re: Hydro Assist:box and pump mods
Post by: abriel68 on Apr 15, 2007, 10:28:32 PM
hello... i have hydro assist and the steering has alot of "play" where you can wiggle the steering wheel and it wont turn. but then my tires grab the road and try to steer away so its dangerous to try to oversteer and gain control... i just had a question of how if possible to adjust the steering to make it more sensitive? thanks for any info.
Title: Re: Hydro Assist:box and pump mods
Post by: leorn on Apr 26, 2007, 07:07:20 PM
did you drill out the restrictor?  Did you center your ram before welding on the brackets?  Not sure if that would be the issue.  May want to wait for a more informed responder. 
I can also turn my wheel back and forth slightly without much response, however it is very predictable in when it will respond, and doesn't make any sudden moves.

The only other guess is if you still have push pull steering.
Title: Re: Hydro Assist:box and pump mods
Post by: MR_DIY on Apr 27, 2007, 03:58:52 PM
anybody know where I can get the rubber and teflon Orings that go on the "piston" of the input shaft?  I just cut mine re-assembling the dang box.  need help fast.

THESE ARE WHAT I NEED:
http://web.archive.org/web/20050322011020/http://128.83.80.200/taco/box7.jpg

any trick to getting it back in w/o cutting the rings?  :thumbdown:
Title: Re: Hydro Assist:box and pump mods
Post by: leorn on May 10, 2007, 07:59:09 AM
Only problem is if you ever want to move your box forward to accomodate moving the axle forward, the line coming off the box will interfere with the front body mount. I prefer the second location. Roughly 2.5" down from the top surface and 1.25" over from the casting seam. It is out of the way and allows for you to move the axle in the future without redrilling your box.
I would locate this hole closer to the steering shaft if possible if I were doing it again.  I would have to look at it to see if it is possible.  I ended up lossening the fitting with my tire.   :smack:
related info:
39 iroks on 2" bs rims
steering box all the way forward
front axle 3 1/2"-4" forward

Note this was not a problem when the axle was 2" forward.  Now it only happens at full stuff, wheels turned passenger.
Title: Re: Hydro Assist:box and pump mods
Post by: Mnmstoy on May 25, 2007, 08:09:44 AM
I just finished mine.
here you can clearly see the vain.
(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fwww.texas4x4.org%2Fgallery%2Falbums%2Falbum109%2F100_2013.sized.jpg&hash=10c0ad5066fecbd2083eefe22baab056)
and what I did to help me not drill pass that. I used tape to mark my drill bit and measured from the side to get me how far I would need to go. About 1/2" is all that you need.
(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fwww.texas4x4.org%2Fgallery%2Falbums%2Falbum109%2F100_2010.sized.jpg&hash=96f125e3575401aa8840eab2c861c843)
On the second location I drilled on the side of the box....but, instead of 1.25" . I marked and drilled 1" from the seam. If you look inside your box where you are going to drill....you will see that the casting gets a little thinner passing that 1.25" and beyond.
(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fwww.texas4x4.org%2Fgallery%2Falbums%2Falbum109%2F100_2017.sized.jpg&hash=172bd12637dc14d492689b801713db20)
I am assuming this is the one that holds the balls. Whatever you do handle it very carefully. I picked it up from the input shaft and the bottom started to unscrew. I caught it in time not to spill its guts. here is a pic of the input shaft
(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fwww.texas4x4.org%2Fgallery%2Falbums%2Falbum109%2F100_2002.sized.jpg&hash=fb6594f95975634be79cf8722e975d3a) 
Here is your sector shaft God I hope I have this right.
(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fwww.texas4x4.org%2Fgallery%2Falbums%2Falbum109%2F100_2001.sized.jpg&hash=7ef7c54f8cbc48ba132c65fb1e2cee9c)
this is my finding and I hope that helps some.
Took me the whole day to remove box from truck to installing it back along with the hydro assist set-up...including parts run(mig wire),breakfast and lunch.
Mike
I have a huge cooler so no mods where made to the resivour....for now.
(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fwww.texas4x4.org%2Fgallery%2Falbums%2Falbum109%2F100_2030.sized.jpg&hash=39112fc8dae94f958c05d69a266b2391)
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jun 04, 2007, 06:03:14 PM
I need help!

If you look at this diagram you can see what im talking about
(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fwww.explorerforum.com%2Fphotopost%2Fdata%2F3596%2Fpsboxinternal.jpg&hash=253779f2b7a16bcb3a1fe46a0d0c1a55)

There is an O-ring that slips onto the end cover at the top of the diagram. I rebuilt my steering box at the time i tapped it for hydro assist. I used the oring that came in the kit and i was getting a bad leak from the top. So i smashed a bigger O-ring in there and it worked for 2 trips till it blew it out. So i put the original one back in and its leaking bad again. What could i do? I tryed kragen and napa to see if i could find a 0-ring that was the same size but thicker but no luck. Maybe i have to get a new box or something.... Is there any silicone that would seal that pressure in there and stop the leak?
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jun 04, 2007, 09:16:19 PM
I think that it should come in this kit.

http://www.pirate4x4.com/forum/showthread.php?t=508309

Good luck!!!
Title: Re: Hydro Assist:box and pump mods
Post by: 85xcab on Jun 05, 2007, 06:02:33 AM
You might try looking in your local phone book under seals. Most seal suppliers also have a large selection of orings.
In Oklahoma City we have Seal Co, They have every oring imaginable.
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jun 05, 2007, 08:50:38 PM
I might pick up another rebuild kit or try and find a place in sacramento that i can buy a bigger o-ring. Sucks because i want to go to the con this weekend.
Title: Re: Hydro Assist:box and pump mods
Post by: marcrunner on Jun 07, 2007, 08:37:30 AM
Anyone else have problems getting the 10mm allen screw loose. I completly strippped mine. Am I retarded?
Title: Re: Hydro Assist:box and pump mods
Post by: BigMike on Jun 07, 2007, 10:25:11 AM
Hey Marc

I just spoke to you on the phone, and I called Freds40, and he said that he recommends disassembling the box as much as you can, and then maybe welding your allen socket to the stripped bolt to extract it. Then you could grind the welds off to save your allen socket.

Another method that I've done with stripped out bolts is to drill down the center of the bolt with a bit that is about 80% of the hole size, and then take a drimmel to grind the bolt from the inside to weaken it (it will become thin), and then take a chisel and hammer the bolt from its side to collapse it and pull it out with some pliers.

Good look dude :thumbs:

BigMike
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Jun 07, 2007, 10:30:24 AM
Hey Marc

I just spoke to you on the phone, and I called Freds40, and he said that he recommends disassembling the box as much as you can, and then maybe welding your allen socket to the stripped bolt to extract it. Then you could grind the welds off to save your allen socket.

Sorry Mike, I wasn't clear on that one. You could weld a bolt or nut to the top of the allen screw and then use a wrench to twist the screw out. I've had a lot of success freeing stuck bolts this way.

Title: Re: Hydro Assist:box and pump mods
Post by: BigMike on Jun 07, 2007, 04:14:44 PM
:hammerhead: BigMike

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fboard.marlincrawler.com%2Findex.php%3Faction%3Ddlattach%3Btopic%3D10579.0%3Battach%3D12200%3Bimage&hash=df6620f9836173fce435d1e516ad172c)
Title: Re: Hydro Assist:box and pump mods
Post by: marcrunner on Jun 07, 2007, 11:44:33 PM
Thanx guys, I just wanted to make sure that I didn't have to have the shaft turned a certain way or something like that. Then again, if there is anyhting I can do to throw a monkey wrench into a situation, I usually do.
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jun 10, 2007, 08:51:12 PM
I went to the toyota dealership and theres actually a gasket that goes under the end cap. So that was a surprise, the rebuild kit isent complete i guess. It cost 1.50$ and i doubt it will leak once i get it in.
Title: Re: Hydro Assist:box and pump mods
Post by: Bazzi on Jun 14, 2007, 01:56:00 AM
http://board.marlincrawler.com/index.php?topic=34383.0;topicseen

I just want to point this out to you all... this is something that you have to keep in mins while working on the box. When I dit my first box I forgot one of those balls and my box crashed. 
Title: Re: Hydro Assist:box and pump mods
Post by: Tice on Jun 14, 2007, 05:10:09 PM
http://board.marlincrawler.com/index.php?topic=34383.0;topicseen

I just want to point this out to you all... this is something that you have to keep in mins while working on the box. When I dit my first box I forgot one of those balls and my box crashed. 


Thats no joke there. Bad thing about mine is I never took that apart, just pulled it all as one unit!
Title: Re: Hydro Assist:box and pump mods
Post by: Notpretty on Jun 17, 2007, 02:31:41 PM
I think that it should come in this kit.

http://www.pirate4x4.com/forum/showthread.php?t=508309

Good luck!!!

Hello,

I was surfing this thread and noticed you asked about combo'ing saginaw pumps with toy boxes...and specifically drilling the pressure side restrictor.  I'm running a pump from PSC...high flow...and a Toy IFS box.  I tapped and rebuilt it.  Upon completion of the build it was a major squeeler.  I drilled out the pressure side box restrictor and it fixed the problem 97%.  I still get a bit of squeel air'd down in the rocks bound up.  But, otherwise it's like driving with one finger.  I found that if you remove the pressure line and find something laying around the shop that tappers (Like punch...even a drill bit might work) you can drop it into the hole and wiggle the fitting (Restrictor) out without removing the box from the vehicle.  I didn't know how much to drill so I did it in steps.  But, with each step it got dramatically better...yes it took a while and a few quarts too.  I basically drilled it to the point there was just enough stem on the fitting to still seat.  Sorry...I foget completely what size I ended at.  But again...I went as far as i could and have the fitting still have a stem that would hold up.

More info...the sag pump is putting out way more than the bax can take and that back the system up and caviation/squeeling kicks in.  This is what the guys at PSC told me.  I've also heard the guts of the IFS box can be opened up...west texas guys do something...to handle the flow.  I didn't have to do that...  if i did, i'd probably install a scout box or simlar matching saginaw box.

I'm now running a D60 with 39 IROKs and it turns great.

Current set up details:

PSC pump
Toy IFS box tapped (not A hole)
1.75 x 8 PSC ram
Simple 3 loop cooler in front of rad
Large res. like on the PSC sight.

Hope that helps. 
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jun 17, 2007, 07:19:48 PM
NOTPRETTY,

Thanks so much for the useful info the sag pump with toy box. I am going to do as you mention in a month or so. I will also see what can be done in the box. If I come up with anything I will post.
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jun 22, 2007, 07:04:36 PM
Alright i took the box off and apart and noticed a deep groove. That is probley the reason my box leaks so bad out the end cap. Did anyone else notice this groove in there 2nd gen IFS box? Does this serve a purpose? The O-ring seals up against this cylinder wall and i dont possibly see how it could with a big slot in it! Im thinking i have to get a new box...... :confused:

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi99.photobucket.com%2Falbums%2Fl287%2Fyota4life%2Fwtf.jpg&hash=73850f8280c9298bcc6fa60ba9511f91)
(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi99.photobucket.com%2Falbums%2Fl287%2Fyota4life%2FHydro%2FIMG_3362.jpg&hash=d96eab58becdc09530ecd24ed6df72a1)
(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi99.photobucket.com%2Falbums%2Fl287%2Fyota4life%2FHydro%2FIMG_3363.jpg&hash=50ffaf61593489ed6c4cb91d39069aa4)
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jun 22, 2007, 09:44:47 PM
I think you have termites. Looks like it will need to be replaced.
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jun 22, 2007, 10:03:26 PM
I cant figure out what could have warn that groove in there! Its almost like a chunk just fell off the side....Weird as hell. Sucks because i just drilled,tapped, and rebuilt it 2 months ago.
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jun 22, 2007, 10:20:00 PM
I would be so pissed after tapping my box and seeing that. Sometimes some places purposely do that to cores, so that no one ever reuses them. Maybe that is what happened.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Jun 22, 2007, 10:54:09 PM
I'd say it's junk. Of all the boxes I've been into, I've never seen that before.
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jun 23, 2007, 09:30:46 AM
Ok im just pissed now....This is the box that was on my truck when i got it....what the hell! im throwing this thing out in the street. What a waste of time!  :maddest:
Title: Re: Hydro Assist:box and pump mods
Post by: jimbo74 on Jun 23, 2007, 09:39:20 AM
that line is definitely not natural, looks tom e like a mark left by a grinder or cutoff wheel
Title: Re: Hydro Assist:box and pump mods
Post by: DTB on Jun 23, 2007, 03:31:14 PM
tHATs fubared...looks like one of the recirculating balls might have escaped
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jun 23, 2007, 06:05:49 PM
That is what has been on your truck this whole time. I would say it is worth repairing and seeing how it goes. Can't really lose. Use some heavy duty epoxy or JB Weld to fill and smooth out. I am almost willing to bet it would hold and seal.
Title: Re: Hydro Assist:box and pump mods
Post by: DTB on Jun 23, 2007, 07:45:39 PM
That is what has been on your truck this whole time. I wouls say it is worth repairing and seeing how it goes. Can't really lose. Use some heavy duty epoxy or JB Weld to fill and smooth out. I am almost will to bet it would hold and seal.
was the box leaking when you took it off?
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jun 24, 2007, 11:51:21 AM
was the box leaking when you took it off?

Its always leaked but not that bad. Then after i rebuilt it, it just poured 2 quarts of ATF out the top in a matter of 3 minutes. I was thinking of welding that gap and smoothing it or using jb weld. But it might not work.
Title: Re: Hydro Assist:box and pump mods
Post by: Tice on Jun 24, 2007, 08:36:50 PM
Yota4life, I have two empty boxes if you need one. One is old style (86) and one is new style(95). If you want one I'll let it go for 10 bucks plus shipping. The 95 box is tapped already.
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jun 24, 2007, 09:00:28 PM
Yota4life, I have two empty boxes if you need one. One is old style (86) and one is new style(95). If you want one I'll let it go for 10 bucks plus shipping. The 95 box is tapped already.

Hey well i just picked up a complete 94 box today for cheap. So its just the bone housing? I might take you up on that. check what shipping would be to 95608 Carmichael, CA. Thanks
Title: Re: Hydro Assist:box and pump mods
Post by: Tice on Jun 25, 2007, 07:59:55 PM
Hey well i just picked up a complete 94 box today for cheap. So its just the bone housing? I might take you up on that. check what shipping would be to 95608 Carmichael, CA. Thanks


I'll check shipping for ya. The 94 and 95 boxes should be the same. It's just a bare housing thats tapped for hydro already. It is done a little different though, but it will work.
Title: Re: Hydro Assist:box and pump mods
Post by: odyseuss on Jun 29, 2007, 10:39:25 PM
I have read though this thread and theres a lot of good info. thanks for posting it up.

There are a variety of 1/4 NPT hydraulic fittings available with different inside diameters. Which size fittings work best with the average ported stock IFS box and hydraulic assist? It seems like the most popular are a 4 or 6.
Title: Re: Hydro Assist:box and pump mods
Post by: Duffil on Jun 29, 2007, 11:35:48 PM
I have read though this thread and theres a lot of good info. thanks for posting it up.

There are a variety of 1/4 NPT hydraulic fittings available with different inside diameters. Which size fittings work best with the average ported stock IFS box and hydraulic assist? It seems like the most popular are a 4 or 6.
1/4" is the same as #4, 3/8" is #6.  hydro line is measured in AN sizes, being 1/16th of an inch.  thus, 4/16=1/4
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jul 08, 2007, 07:27:57 PM
Well i ended up using JB weld to fill the crevice and i smoothed it with a die grinder. Put the Correct 0-ring on and it dosent leak at all now! I was really excited about that. Ran the rubicon saturday and it worked great. Wow jb weld does wonders. :)
Title: Re: Hydro Assist:box and pump mods
Post by: DTB on Jul 08, 2007, 07:36:37 PM
Well i ended up using JB weld to fill the crevice and i smoothed it with a die grinder. Put the Correct 0-ring on and it dosent leak at all now! I was really excited about that. Ran the rubicon saturday and it worked great. Wow jb weld does wonders. :)
WOW! i mean really wow..that is amazing....  :suprised:
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jul 08, 2007, 08:08:23 PM
I know that it probley leaked from that but it was also because i was running the wrong 0-ring before. I used jb weld on my t-case to fill cracks and it still dosent leak. haha
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jul 08, 2007, 08:23:27 PM
Very happy to hear :beer:
Title: Re: Hydro Assist:box and pump mods
Post by: DieselD on Jul 27, 2007, 10:45:25 PM
awesome write up, made tapping my box a breeze. took about 3hours from start to finish which includes running around looking for drill bit that was worth a damn. Ive never been inside a toy box either so it was new.

either way it was easy. I have yet to get it on the truck and pumping fluid but hopefully all is well.
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Aug 17, 2007, 12:19:36 AM
Freds40,

Have you ever had any issues with the fitting on top of the box not being able to thread in very much since the tap can't go that deep. I have done a couple of boxes and wish the fitting went in deeper than 3 threads. I am working on another one now and I am going to use a second tap after running the first one that bottoms out. My second tap will be from the same maufacturer, but I am going to shave off 1/4" from the tap. Hopefully this will allow me to use the wider part of the tap and be able to get the fitting to screw in more than 3 threads. If I get 4 or five I will be very happy. Especially if it does not leak.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Aug 17, 2007, 06:23:09 PM
I know it can happen. When I do mine I run the drill bit to the very bottom of the vein. Then run the tap in as tight as possible. I can usually get 4-5 threads to grab. When I have done Sag boxes, I have used a second ground tap to get it in deeper.
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Aug 17, 2007, 10:02:35 PM
Good advise.. Thank you :beer:
Title: Re: Hydro Assist:box and pump mods
Post by: Vortec_Cruiser on Sep 29, 2007, 11:17:07 AM
Use your regular tap, and then use a bottoming tap, which doesn't have a taper to it.  This will give you full-depth threads.  ;)
Title: Re: Hydro Assist:box and pump mods
Post by: ryno1 on Nov 06, 2007, 08:58:19 PM
Fred, is the 4cyl pump the same as the V6 pump?  I have the V6 and was wondering if the process for drilling the restrictor is the same.
Title: Re: Hydro Assist:box and pump mods
Post by: JZ on Nov 21, 2007, 10:51:58 PM
same here fred I got the v6 also and there isn't many options of a pump.
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Nov 22, 2007, 12:27:56 PM
The v6 pump I worked on had two small holes in the restrictor instead of one from the factory. In trying to knock out the restrictor to figure out how to drill it, I ended up puching a hole between the two holes accidently. So I ended up with one large hole. For some reason the restrictor would not come out by lightly tapping it out. It ended up working out just fine.

Good luck
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Nov 22, 2007, 07:58:12 PM
The v6 pump I worked on had two small holes in the restrictor instead of one from the factory. In trying to knock out the restrictor to figure out how to drill it, I ended up puching a hole between the two holes accidently. So I ended up with one large hole. For some reason the restrictor would not come out by lightly tapping it out. It ended up working out just fine.

Good luck

Same happened here. I tried punching it out and it broke out. Been running it for a long time with no problems. Works great
Title: Re: Hydro Assist:box and pump mods
Post by: chadchad on Jan 08, 2008, 08:33:10 AM
thanks for helping save money bra
Title: Re: Hydro Assist:box and pump mods
Post by: 88_Pathy on Feb 13, 2008, 06:34:18 PM
If you didn't want to run assist could you just drill the restricter on the pump to get stronger power steering?
Title: Re: Hydro Assist:box and pump mods
Post by: DTB on Feb 14, 2008, 12:29:42 PM
The v6 pump I worked on had two small holes in the restrictor instead of one from the factory. In trying to knock out the restrictor to figure out how to drill it, I ended up puching a hole between the two holes accidently. So I ended up with one large hole. For some reason the restrictor would not come out by lightly tapping it out. It ended up working out just fine.

Good luck
I used a nail that I found on the garage floor to poke mine out...works great so far :yupyup:
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Feb 23, 2008, 05:29:21 PM
Updated with Rick's info.  :thumbs:
Title: Re: Hydro Assist:box and pump mods
Post by: BigBs84 on May 21, 2008, 12:43:27 PM
If you didn't want to run assist could you just drill the restricter on the pump to get stronger power steering?
Hey man I did that and you had to get the rpm's up for it to turn it sucked so I put a stock one back in and it works fine
Title: Re: Hydro Assist:box and pump mods
Post by: Bazzi on May 21, 2008, 02:18:20 PM
Updated with Rick's info.  :thumbs:
I can´t find a post from rick... where is the new scoop   :hammer: (modified) sorry guy´s I am a dumb  :moon:
the info is at page 1.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on May 22, 2008, 02:29:29 PM
Bottom of page 1
Title: Re: Hydro Assist:box and pump mods
Post by: sixtninecat on May 24, 2008, 06:04:44 PM
The 9-4410-06 Cylinder is out of stock indefinitely at Surplus Center.  What are some other places to get cylinders online???


Joe
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on May 24, 2008, 09:06:21 PM
That sucks. I bought one just a month or so back. Check out Northern Tool. They should have a 6" stroke 1.5" cylinder.
Title: Re: Hydro Assist:box and pump mods
Post by: DTB on May 26, 2008, 12:22:41 PM
Just FYI, Ballistic Fab just came out with 1.25" clamps for your tie rod mount
(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fwww.ballisticfabrication.com%2Fassets%2Fimages%2Fdsc02101.jpg&hash=f0c2e5a1ed47e0eed9fff674a8f3e1d0)

http://www.ballisticfabrication.com/OD-Tube-Clamp_p_21-1474.html
Title: Re: Hydro Assist:box and pump mods
Post by: Doof on Jul 26, 2008, 06:56:23 PM
bump so i dont have to search again
Title: Re: Hydro Assist:box and pump mods
Post by: DTB on Jul 27, 2008, 06:02:19 AM
bump so i dont have to search again
This thread is a sticky! :doh:
Title: Re: Hydro Assist:box and pump mods
Post by: Doof on Jul 27, 2008, 05:39:04 PM
cool

:thumbs:

dont really care
Title: Re: Hydro Assist:box and pump mods
Post by: kiyul4130 on Aug 29, 2008, 08:45:29 PM
i tapped my box yesterday. it was quite easier than i thought it seemed to be. i still dont have all my steering together to see how it works yet. i will post once its completed.
Title: Re: Hydro Assist:box and pump mods
Post by: yota-tota on Sep 08, 2008, 03:47:05 PM
anyone drill and tap the box without taking it apart? seems like it would work if you just took your time drilling it out....like keep blowing the chips away and put some grease on the end of the drill bit and tap to grab the chips. Also use a s strong magnet by your drill bit to grab the chips as well.

I'm just worried about not getting it back together correctly that's all and a few small chips can't make that big of a deal.
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Sep 08, 2008, 08:50:21 PM
I have done 3 of them. I can tell you that there is no way of doing it with out having chips stuck inside. Go ahead and do it if you want. Please post up after at least 1000 miles and let us know how it turned out.
Title: Re: Hydro Assist:box and pump mods
Post by: DTB on Sep 09, 2008, 05:50:41 AM
a few small chips can't make that big of a deal.
yes they are a big deal.    dont try to take a shortcut on your steering..just do it the right way man
Title: Re: Hydro Assist:box and pump mods
Post by: yota-tota on Sep 09, 2008, 04:44:15 PM
hahaha sooo i took it apart today after work and it ya it was a joke BUT on re-assembly i hooked that teflon ring and split SO i just tried to put it back together until i can order the seal (which i hope you can) but i couldn't get the teeth on the input thingy to be in the right phase to mesh with the teeth on the slector shaft....when i put the slector shaft back in it would twist the other piece side ways. After 4 tries and the seal breaking i had enough and left it until tomorrow.

There has to be an easier way to make sure that input shaft is in the right phase because if it moves and turns on you your deffently going to tear that seal.
Title: Re: Hydro Assist:box and pump mods
Post by: TopStreet on Sep 14, 2008, 08:00:45 AM
Hey Guys!

Great thread. I have read through the first 3 pages, and it seems like everyone has been happy with the mod, if they can get the small bugs worked out.

I am posting because I am would like to know if anyone "has or could" take the highsteer arm off at the pitman arm, and try steering the truck with no mechanical linkage?

I am not an expert (by any means) when it comes to steering boxes and pumps and whatever. It just seems that there is enough force there to run a 2"x8" ram on its own for at least light duty work. Before it gets brought up, I am completely aware are the safety factor and have no intentions of driving the rig on the street. Thanks for any help I can get.

Jake H
Title: Re: Hydro Assist:box and pump mods
Post by: Bazzi on Sep 14, 2008, 02:52:07 PM
I can make the ram move the wheels, but I have to turn the steering wheel to a full stop and keap preasure on it.
Title: Re: Hydro Assist:box and pump mods
Post by: jimbo74 on Sep 14, 2008, 02:58:36 PM
Hey Guys!

Great thread. I have read through the first 3 pages, and it seems like everyone has been happy with the mod, if they can get the small bugs worked out.

I am posting because I am would like to know if anyone "has or could" take the highsteer arm off at the pitman arm, and try steering the truck with no mechanical linkage?

I am not an expert (by any means) when it comes to steering boxes and pumps and whatever. It just seems that there is enough force there to run a 2"x8" ram on its own for at least light duty work. Before it gets brought up, I am completely aware are the safety factor and have no intentions of driving the rig on the street. Thanks for any help I can get.

Jake H


myabe im mistaken, but thats full hydro is it not?


this is what tractors use, i know its what our TUGs at work use, i somehow snapped a knuckle off the ram before.....
Title: Re: Hydro Assist:box and pump mods
Post by: TopStreet on Sep 14, 2008, 04:20:11 PM
Cool!....

Thanks guys! Thats what I needed to hear. Yes, its full hydro. I just didnt know if the tapped stock gear box could act as a steering valve, without the mechanical linkage creating resistance.

I will post the pics and info on the build in the rig section in the next month.

You guys are great! Thanks again for the help!

Jake H
Title: Re: Hydro Assist:box and pump mods
Post by: yota-tota on Sep 17, 2008, 02:13:41 PM
hey anyone know if a 2" bore ram is too large for the toy pump? I can get a smoking deal on a 2" bore 6" travel ram, most kit ive seen are 1.5 but it'll cost me almost double for that size.
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Sep 18, 2008, 11:51:42 PM
2" bore ram depending on the shaft diameter will probably be really slow with the Toy pump. A lot more volume to be moving in the ram.
Title: Re: Hydro Assist:box and pump mods
Post by: brookspage on Feb 28, 2009, 09:44:30 PM
hi i am trying to tap a 4 cylinder power steering box and wanted to know if the holes have to be in different location
Title: Re: Hydro Assist:box and pump mods
Post by: Scott83 on Mar 01, 2009, 06:05:16 PM
put mine in the same place
Title: Re: Hydro Assist:box and pump mods
Post by: Scott83 on Mar 01, 2009, 06:24:15 PM
think i trashed the steering box today. i was out playing and pull apart a hydro hose at the ram. for a trail fix to get off the trail i looped the in and out of the box togeather and pulled the ram off.  box got hot and the steering would lock up then release and work. i went and got a new hose and started playing again. the steering i thought had air in it so tried to bleed. started driving and working it but it would stick and not turn.did this for 30 min sticking ,grinding, hard to work , then nothing. steering wheel spins with little or no resitance.  question did i cause this because i hooked the two tapped holes togeather and drove on it?   still had fun and safe trip today,
Title: Re: Hydro Assist:box and pump mods
Post by: DTB on Mar 01, 2009, 06:29:22 PM
sounds bad whatever it is..something is probably burned up (seals or pump or something)

I keep a couple (cap-off) plugs for the ports on the box in the toolbox in case something like that happens. I think they were less than a dollar a piece. I would advise the same!
Title: Re: Hydro Assist:box and pump mods
Post by: Scott83 on Mar 01, 2009, 06:39:28 PM
my son and i were talking on the way home, and all ready decided to add plugs to the tool box.
Title: Re: Hydro Assist:box and pump mods
Post by: Capt. Crawler on Mar 25, 2009, 09:44:16 PM
Hey guys, OK so I did all the mods(larger reservoir, drilled restrictor,cooler) and it came out great thanks to this thread. I just can't seem to get the pump to stop squealing. It's not to loud, just annoying at this point. I've tried to bleed the system several times with and without the tie-rod attached to the pitman arm.
 any suggestions?

Title: Re: Hydro Assist:box and pump mods
Post by: notyourmomslx450 on May 27, 2009, 07:17:23 AM
And heres Rick's pics from the same thread showing the work done to the 80 box.

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi166.photobucket.com%2Falbums%2Fu86%2Ffreds40%2F80box2.jpg&hash=12fae28487b50cea4bc7de88ff64b94f)

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi166.photobucket.com%2Falbums%2Fu86%2Ffreds40%2FFJ80box.jpg&hash=104692dc8a5b299c6e18269a6c2ede1b)

Great info Rick. Thanks for letting me add this to my thread. I hope to be borrowing this info as I will be doing a 60 box in the coming months.  :thumbs:

Is there any reason the IFS box can't be tapped similarly to the 80 box, rather than tapping directly into the vein?  It looks like the basic design of the boxes are the same, only bigger and reverse rotation on the 80 box.  If you look at the first two pictures, and compare it to the pics in posts 19 & 17, the "end cap" area looks to be the same design, w/ a seal area (shiny part around the end of the inside of the cavity) and the vein going into the recess at the end where the 80 box is drilled.  LMK if that makes sense to anyone other than me.  Seems like you'd save alot of worry
Title: Re: Hydro Assist:box and pump mods
Post by: COToy91 on Jun 21, 2009, 07:47:30 PM
I pulled the box and began to disassemble it following freds40's instructions from the Marlin board. I got to the step saying to remove the 10mm plug and the contents behind it. The plug was difficult to get moving but it came free and I don't feel like anything sheered.

The issue is, it wont come out... Pictures show how far it came till it stopped...

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi240.photobucket.com%2Falbums%2Fff180%2Fkins5402%2FDSCN0152.jpg&hash=6f6e727b541dcf5c60aca1fe317a6fd5)
(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi240.photobucket.com%2Falbums%2Fff180%2Fkins5402%2FDSCN0153.jpg&hash=bfeaf68ba87f57bbdf6fab0e1a1d6bf6)


Was it hard to get this out for those who have done this? Am I fawked and need to look for a new box? Any help is appreciated:flipoff2:


Freds40's instructions---

If your box has the centering valve, use the 10mm allen wrench to remove it. There is a valve, spring, and almost a cylinder that need to be removed. If you don't have one, skip this.

Attachment:
(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fboard.marlincrawler.com%2Findex.php%3Faction%3Ddlattach%3Btopic%3D10579.0%3Battach%3D53146%3Bimage&hash=8aa0d6d55ba3dc429f1280ab83487a38)
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jun 21, 2009, 08:47:00 PM
That 10mm plug is a pain in the butt. You can tap on the top of the plug gently with a hammer if it is starting to round out. This will tighten the fit with the allen wrench. You can also grind the end of you allen wrench flat so that it sits deeper in the plug. I would then recommend putting all your weight straight down on it while keeping the wrench straight as you turn.

Good luck.
Title: Re: Hydro Assist:box and pump mods
Post by: COToy91 on Jun 21, 2009, 08:56:20 PM
That 10mm plug is a pain in the butt. You can tap on the top of the plug gently with a hammer if it is starting to round out. This will tighten the fit with the allen wrench. You can also grind the end of you allen wrench flat so that it sits deeper in the plug. I would then recommend putting all your weight straight down on it while keeping the wrench straight as you turn.

Good luck.

Its completely loose, it just wont pull out
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jun 21, 2009, 10:28:31 PM
I see what you mean. It may take two people. Gently pry on opposit sides with small screw drivers on the treads while some one turns the allen wrench. Pry enough without damaging the threads. If I remember the o ring gets hung up. Just takes some firm but gentle pressure. :thumbs:
Title: Re: Hydro Assist:box and pump mods
Post by: COToy91 on Jun 21, 2009, 10:42:02 PM
I see what you mean. It may take two people. Gently pry on opposit sides with small screw drivers on the treads while some one turns the allen wrench. Pry enough without damaging the threads. If I remember the o ring gets hung up. Just takes some firm but gentle pressure. :thumbs:

sweet thanks for the help man, you are quick on the response
Title: Re: Hydro Assist:box and pump mods
Post by: John S. on Jul 26, 2009, 04:02:53 PM
PSC makes a pump kit for a Toyota 3.4 and I have read that the 3.0 PS pump can be reused during a 3.0 to 3.4 engine swap. Has anyone tried the PSC 3.4 pump on their 3.0 yet?
Title: Re: Hydro Assist:box and pump mods
Post by: Techtafab on Aug 03, 2009, 06:21:39 AM
 :yikes:
whats the best way to get all the balls back around the screw shaft  :help:
Title: Re: Hydro Assist:box and pump mods
Post by: Bazzi on Aug 04, 2009, 03:39:48 PM
ha ha ha.... enjoy

I put a few in there with a grease. then I start working the shaft in there. and as the last ball is at the edge of the box I put a new in. then turn a litle, new ball, turn more new ball...

just before you start, contact the dealership and make shure how many the balls should be, I think they are 52 but it has been a few years, so make sure before you start. I once lost 1 or something and I got an explodet view of the box, after a week or something, and that was scary
Title: Re: Hydro Assist:box and pump mods
Post by: notyourmomslx450 on Aug 04, 2009, 10:56:43 PM
I put a few in there with a grease. then I start working the shaft in there. and as the last ball is at the edge of the box I put a new in.

:rofl:  that sounds alot worse than it is.  out of context award!
Title: Re: Hydro Assist:box and pump mods
Post by: Techtafab on Aug 06, 2009, 11:52:45 AM
thanks for all the help there guys
i got it done
and there are 44 balls ha ha
and no it did not go back together the 1,2,3,10,11,or 13th try
lets just say it was a DOG to put back together


side note DOT NOT PULL THAT OUT AGAIN  :shake:
Title: Re: Hydro Assist:box and pump mods
Post by: Bazzi on Aug 06, 2009, 01:59:25 PM
 :crazy: excactly... the second time I dit that it was a lot easier...  but that time someone pulled it a part for me   :shake: someone should rip one apart just to post pictures of him putting it back together.  :gap:
Title: Re: Hydro Assist:box and pump mods
Post by: foley on Sep 29, 2009, 08:49:53 PM
Thanks got my box tapped and everything was good for a couple trails. Then my ram assist tore off the mount on my axle because of my lackluster fab skills. I didnt notice the ram mount broke for two turns and then my steering box blew out on what i think is a release valve ( i believe there was a ball bearing in the whole ) in the picture circled in red. Has anybody seen this and is this something i can fix or should i just grab another box at the junk yard?

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Flh4.ggpht.com%2F_Do_hcJKP-Ng%2FSsLSzHxBJNI%2FAAAAAAAABzQ%2FiZIUdNFohR0%2Fs400%2Fphoto1.jpg&hash=05a3b014e3a477ab1786386abfbb2b61)
Title: Re: Hydro Assist:box and pump mods
Post by: illinoisyotadriver on Oct 24, 2009, 03:39:48 PM
thanks fred40 for the great write up now i just got to get all the parts together to get it done should make turning with my 38's a whole lot easier
Title: Re: Hydro Assist:box and pump mods
Post by: possum on Nov 16, 2009, 09:04:44 PM
I used this thread to do this today. I just got the box saturday (2 days ago)My plan is to buy the high steer arms in the next 2-4 weeks (hopefully) depending on $$ I installed plugs in the holes cuz I wanted the box done before I install it, but it might be several months before I can get the ram, fittings and hoses. When I do get them I will that much more ready. The only problem I had was the threads tapping deep enough... But I think I got it. Great write up "VERY HELPFUL" Without this thread I would have never even tried to tear the box apart. Thank you very much!!!
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Nov 16, 2009, 09:32:08 PM
Thanks got my box tapped and everything was good for a couple trails. Then my ram assist tore off the mount on my axle because of my lackluster fab skills. I didnt notice the ram mount broke for two turns and then my steering box blew out on what i think is a release valve ( i believe there was a ball bearing in the whole ) in the picture circled in red. Has anybody seen this and is this something i can fix or should i just grab another box at the junk yard?

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Flh4.ggpht.com%2F_Do_hcJKP-Ng%2FSsLSzHxBJNI%2FAAAAAAAABzQ%2FiZIUdNFohR0%2Fs400%2Fphoto1.jpg&hash=05a3b014e3a477ab1786386abfbb2b61)


You may call your local rebuilder and see what they say. I would just get another box.
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Nov 16, 2009, 09:35:10 PM
I used this thread to do this today. I just got the box saturday (2 days ago)My plan is to buy the high steer arms in the next 2-4 weeks (hopefully) depending on $$ I installed plugs in the holes cuz I wanted the box done before I install it, but it might be several months before I can get the ram, fittings and hoses. When I do get them I will that much more ready. The only problem I had was the threads tapping deep enough... But I think I got it. Great write up "VERY HELPFUL" Without this thread I would have never even tried to tear the box apart. Thank you very much!!!

Most people have a tough time getting enough threads on the top port. You can buy a bottoming tap to get more threads in there. Most places like lowes and homo depot do not sell bottoming taps though. I just bought a second tap and took the grinder to it effectively making my own bottoming tap. I ran my regular tap first and than my home brew bottoming tap second.
Title: Re: Hydro Assist:box and pump mods
Post by: possum on Nov 18, 2009, 09:45:43 PM
Most people have a tough time getting enough threads on the top port. You can buy a bottoming tap to get more threads in there. Most places like lowes and homo depot do not sell bottoming taps though. I just bought a second tap and took the grinder to it effectively making my own bottoming tap. I ran my regular tap first and than my home brew bottoming tap second.
After tapping both holes, I cut a quarter inch off of the tap, and ran it in again. It seemed to make the threads that were cut the first time, deeper. It wouldn't bottom out. I think I should have cut off less... But the plug went in 3 turns and I'm prity sure it won't leak... You think??  I tried to buy a bottoming tap but the hardware store that I went to didn't cary them.(Park Rose Hardware/Best in town)
Title: Re: Hydro Assist:box and pump mods
Post by: possum on Nov 18, 2009, 09:54:43 PM
My 10mm plug stripped out so I wust welded a nut to it. It came right out after that. (the heat helped)
Title: Re: Hydro Assist:box and pump mods
Post by: dave-ger on Nov 22, 2009, 11:24:15 AM
so, I just took apart my steering box and I'm all ready to drill and tap it. my problem is that I stupidly unbolted the input shaft housing before turning it all the way to the right until it stops to remove it, I got that and the piston out of there, but the piston was about 3/4 of the way or more from being off the input shaft, then it came off the rest of the way, there are a bunch of loose ball bearings in it and I'm not sure what to do to re-assemble it. it I just let the ball bearings chill in the bottom and try to put it back together, it's not too smooth, perhaps the bearings go inbetween the shaft and piston? hoping I'll get a helpful response on this by the time I finish tapping the box, and hopefully I explained that well.

thanks
Title: Re: Hydro Assist:box and pump mods
Post by: possum on Nov 23, 2009, 05:10:27 PM
Well for anyone rebuilding their box heres a "How too" http://web.archive.org/web/20050322011020/http://128.83.80.200/taco/box.html

I got my box back together and believe it or not it works! For the square cut teflon o rings just use a hose clamp to make them smaller once you get them on. Theres a pretty easy way to get the 44 little balls back in place.

On the piston the worm gear threads into, it has a cap that can be unthreaded and taken off. Then fill the little "tube with as many as you can and put the worm gear in an inch or so. Dump the bearing into the top of the piston and thread it in and they will fall into place. Took me about 5 minutes to get them all back in.
Title: Re: Hydro Assist:box and pump mods
Post by: dave-ger on Nov 23, 2009, 07:52:03 PM
thanks man, I tried the tube thing, but didn't manage to make it work. what I did was grease the inside of the piston, and put 3 ball bearings in at a time, then ran them to the front as far as they would go (into the tube for the first few) and repeated. wasn't that bad, I kind of got a description of how to do it from that link you posted a little after I posted the question.

sorry for not seeing what you quoted earlier.

hopefully this will at least help someone else later on.
Title: Re: Hydro Assist:box and pump mods
Post by: twistedtoy92 on Nov 23, 2009, 11:20:50 PM
great write up!  :biggthumpup:  :beerchug:
Title: Re: Hydro Assist:box and pump mods
Post by: potter85 on Jan 11, 2010, 06:54:13 PM
my restrictor plate doesnt look like that or come apart it is off of a 97 3rz anyone have any ideas.... i am thinking to just drill it out
Title: Re: Hydro Assist:box and pump mods
Post by: freds40 on Jan 11, 2010, 08:18:30 PM
If your Taco pump is like the one I worked on with 2 smaller holes next to each other rather than 1 in the middle, then you can't drill it out. The restrictor on the one I worked on had a large air gap in the middle so drilling into it just opened up the whole area. Kinda sucked..........but now I know.  :gap:
Title: Re: Hydro Assist:box and pump mods
Post by: potter85 on Jan 11, 2010, 09:37:37 PM
mine has a single hole in it but it is one piece. so ima just drill it out and run it seems to be what everone else did.
Title: Re: Hydro Assist:box and pump mods
Post by: potter85 on Jan 21, 2010, 03:31:59 PM
(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi384.photobucket.com%2Falbums%2Foo282%2FCalicoDaniel%2FIMG_3363.jpg&hash=9306e937ae54523233678e6aa37fc776)

this is not a grinder mark it is from beating the sector shaft out with a hammer. one of the teeth scarred the housing because the teeth are off centered from the sector shaft and if the teeth are  not centered when removing or installing they will scar the housing like this due to forcing the shaft.
Title: Re: Hydro Assist:box and pump mods
Post by: Yota4life on Jan 21, 2010, 05:32:34 PM
(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi384.photobucket.com%2Falbums%2Foo282%2FCalicoDaniel%2FIMG_3363.jpg&hash=9306e937ae54523233678e6aa37fc776)

this is not a grinder mark it is from beating the sector shaft out with a hammer. one of the teeth scarred the housing because the teeth are off centered from the sector shaft and if the teeth are  not centered when removing or installing they will scar the housing like this due to forcing the shaft.

That sounds right. I filled it with JB weld and smoothed it out and its been like 2 years now and still not a single leak.
Title: Re: Hydro Assist:box and pump mods
Post by: potter85 on Jan 21, 2010, 05:35:33 PM
yeah it isnt on the high pressure side and the seal only sits inside the box about an 1/8th of an inch
Title: Re: Hydro Assist:box and pump mods
Post by: 83yotachad on Jan 21, 2010, 07:57:52 PM
Very good post! I ended up with to boxes do to not reading completely. The 1st one I have not been able to get it back together do to them little balls gerr it got me drinking. The 2nd one I got it done and installed yahoo!  I read some where that some one took two stock reservoir's cut the bottom off one and the top off the other cleaned them out and welded them together I have it plumped in I don't think something is wright I have so much pressure that it comes out the bottom of the cap so I took the reservoir out and connected the steering box to the pump and did not have that problem of high pressure but when I shut the engine off it over flows out of the top of the power steering pump even thoe there is hardly next to nothing in the psp before I shut it down. O a little insight to what I have  82/83 toy pickup with a Chevy 283 stock steering pump toy steering box and a 2X8 ram . I might of left something just ask ! Iam open to any ideas .
Title: Re: Hydro Assist:box and pump mods
Post by: 83yotachad on Jan 23, 2010, 11:59:16 PM
Anyone?
Title: Re: Hydro Assist:box and pump mods
Post by: potter85 on Jan 26, 2010, 02:04:35 PM
well your ram is too big most people use a 6 in ram.  and you need to increase the volume in your system by adding a cooler and/or cutting the resivoir and scabbing one together.
Title: Re: Hydro Assist:box and pump mods
Post by: 83yotachad on Jan 26, 2010, 02:38:04 PM
well your ram is too big most people use a 6 in ram.  and you need to increase the volume in your system by adding a cooler and/or cutting the resivoir and scabbing one together.

If your talking to me I have 3/4 ton Chevy axles!  I have all ready scabbed one together you would know that if you read my whole post!
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jan 26, 2010, 09:28:58 PM
If your talking to me I have 3/4 ton Chevy axles!  I have all ready scabbed one together you would know that if you read my whole post!

You do not deserve any response  :tantrum:
Title: Re: Hydro Assist:box and pump mods
Post by: 83yotachad on Jan 28, 2010, 04:10:55 PM
 
You do not deserve any response  :tantrum:


:dunno: What I do? I was just sayin I all ready did that of what he was sayin.  :gap: Or is it the fact I am usein 3/4 ton chevys? BTW you all ready gave me a response  :yupyup:
Title: Re: Hydro Assist:box and pump mods
Post by: swapped89 on Mar 27, 2010, 03:51:22 PM
If your Taco pump is like the one I worked on with 2 smaller holes next to each other rather than 1 in the middle, then you can't drill it out. The restrictor on the one I worked on had a large air gap in the middle so drilling into it just opened up the whole area. Kinda sucked..........but now I know.  :gap:
I completely drilled mine out to 5/16" then filled it with JB weld and then re drilled it to 12/64 or 3/16" i might need to go up to 13/64 because...
Well its all done and back together AGAIN! and the darn thang dont work right. If im sittin still in the shop tires on the ground it works great feels good and super easy to turn the tires. If i turn the wheel too fast or at a normal turning speed its like the power steering has gone completely out!! :hammerhead:
I guess i should check out those saginaw pumps. cause I know everything is correct I have pulled it all apart 3 times now! This is givin me such a headache. It wont even turn as easy as a regular stock steering system.
Any one got some more input?
And i replaced my nicked teflon seal with a good one!
Title: Re: Hydro Assist:box and pump mods
Post by: potter85 on Mar 27, 2010, 04:07:20 PM
Quote
If your talking to me I have 3/4 ton Chevy axles!  I have all ready scabbed one together you would know that if you read my whole post!

well if you would have read the hydro assist thread you would know that you need to run a 1.5 in ram and not a 2 in one. and you would know that 8 in is also long no matter what axles you have.    :hammer:
Title: Re: Hydro Assist:box and pump mods
Post by: 83yotachad on Mar 27, 2010, 09:24:18 PM
well if you would have read the hydro assist thread you would know that you need to run a 1.5 in ram and not a 2 in one. and you would know that 8 in is also long no matter what axles you have.    :hammer:

To long ? I can turn full lock to lock and not have any problems! I know jeep people running the 2x8 for quite a long time and have never had a problem. I just wish I had enough room to run an Saginaw steering box then all my problems would be over with this steering issue!
Title: Re: Hydro Assist:box and pump mods
Post by: potter85 on Mar 27, 2010, 09:48:41 PM
then buy a jeep
Title: Re: Hydro Assist:box and pump mods
Post by: 83yotachad on Mar 28, 2010, 09:44:44 AM
then buy a jeep

nope I like my Toyota! "O" BTW I did read the whole wright up 3 times over! At the time I had the money to buy the ram the 2X8 was the only one they had and It was local If I wanted the 1.5 I would of had to wait and it would of been $120 + shipping + everything .

I payed $110 for 4 fittings 2 hydro lines and my ram all new not used (https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fwww.freesmileys.org%2Fsmileys%2Fsmiley-finger007.gif&hash=24c8e80b568c8c337266cd566b07a854) (http://www.freesmileys.org/smileys.php)
Title: Re: Hydro Assist:box and pump mods
Post by: potter85 on Apr 04, 2010, 07:56:08 PM
surplus center has quick disconnect fittings now that hold high pressure which would be cool to run out of your box just in case a line gets snagged or any other reason you would want to remove the ram
Title: Re: Hydro Assist:box and pump mods
Post by: swapped89 on Apr 04, 2010, 09:03:52 PM
That's pretty sweet!
Title: Re: Hydro Assist:box and pump mods
Post by: MattyB4x4 on Jul 27, 2010, 10:04:53 AM
My 10mm plug stripped out so I wust welded a nut to it. It came right out after that. (the heat helped)

I stripped mine out as well and got it out with a "bolt extractor" set.  However, now my 10MM plug is junk.  Does anyone know what thread/size this is?

I was told m20x1.5 straight thread.  I have also found M20x1.5 pipe plugs.  This is the ONLY things stopping me from getting this back on the truck.

Thanks!
Title: Re: Hydro Assist:box and pump mods
Post by: E YOTA on Dec 25, 2010, 10:37:54 PM
anyone??? 3.4 motor... drilled mines out to 13/64 and now it makes a whine around 2500 rpms...should i put back a stock restricter? or is that normal...
Title: Re: Hydro Assist:box and pump mods
Post by: yotatough on Dec 26, 2010, 12:16:34 AM
anyone??? 3.4 motor... drilled mines out to 13/64 and now it makes a whine around 2500 rpms...should i put back a stock restricter? or is that normal...
put a stock one back in and see if it fixes the whine, and see if it performs the same?
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Jan 04, 2011, 01:40:56 PM
when you drill the hole on top for the vein how far down do you go??
Title: Re: Hydro Assist:box and pump mods
Post by: santa cruz crawler on Jan 04, 2011, 02:43:35 PM
Nice right up by every one who put here knowledge into this
Advancement , but I have a different prob.
My steering wheel bounces back and forth due to the ps box being sloppy
,old idk the miles, any ideas on how to fix this shimmy back and forth on the road will help

By the way I don't have hydro ass. Ifs box and high steer and steering stabali ect
Thanks     
Title: Re: Hydro Assist:box and pump mods
Post by: superyota on Jan 04, 2011, 02:45:14 PM
when you drill the hole on top for the vein how far down do you go??
about 3/8ths on an inch down.  be carefull not to go to deep.  just keep checking it once you get down a little.  better safe than sorry.  it will be very obvious when you get to it.  usually, the bit will catch a bit right before you get into the vein.  hope this helps.
Title: Re: Hydro Assist:box and pump mods
Post by: superyota on Jan 04, 2011, 02:47:07 PM
Nice right up by every one who put here knowledge into this
Advancement , but I have a different prob.
My steering wheel bounces back and forth due to the ps box being sloppy
,old idk the miles, any ideas on how to fix this shimmy back and forth on the road will help

By the way I don't have hydro ass. Ifs box and high steer and steering stabali ect
Thanks     

start with checking your alignment.  mine had a shimmy, i went 1/8th out on the the toe, and its perfect now.  some guys go toe in 1/8th, and some go out 1/8th.  1/8th out is what worked for me so thats what i did.
Title: Re: Hydro Assist:box and pump mods
Post by: swapped89 on Jan 04, 2011, 03:10:46 PM
mine is also 1/8" toe'd in. has worked great for years :thumbs:

You can buy rebuild kits for your powersteering gear box also. That might help they range from like 25-50$
Title: Re: Hydro Assist:box and pump mods
Post by: santa cruz crawler on Jan 04, 2011, 05:56:58 PM
Yeah 1/8 in.    So I've do e 1/8 in and 1/8 out and the only thing I can think is the stewing box , because this steering was o. Another truck and it steer fine
I will say the first day I had no problems then it just started getting real bad

I can tell it's the steering box, because when the truck is off,  I can move the steering shaft back and forth and there's almost an Inch of nothing

There is no good boxes out here and I have limited funds right now
Plus I just tried to move my tierod in a little on the drivers side and
It won't move     But I installed these  tie rods were just I stalled 4 months ago and I looked while my girlfriend steer my truck and nothing was wrong

She said " it feels like there's play in the wheel"
So idk.    I'm over pissed    I just drive 15 mph. But I am ready to take this thing to the
Alignment shop and watch a tweak  fix my my problem


I'm just mad cause I no this steering is fine  I just think the problem is easy to fix
Please help    Thanks.              Thanks 
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Jan 05, 2011, 07:11:11 AM
about 3/8ths on an inch down.  be carefull not to go to deep.  just keep checking it once you get down a little.  better safe than sorry.  it will be very obvious when you get to it.  usually, the bit will catch a bit right before you get into the vein.  hope this helps.

Ima try it and see what happens i guess ill drill slow and go from there......  thanks
Title: Re: Hydro Assist:box and pump mods
Post by: Sparkplug on Jan 27, 2011, 08:57:55 PM
Got my assist on, surplus ram, norm setup on toy axle. Stock pump, sotck res, no cooler. Bled works good, Lag isnt bad. When I put it in 4-6 inch rut, it struglles to crush it and turn through the ground, it flat out WONT unless I rev the engine, at which point pump whines and it will power through easily. Do i need to drill my pump out?
Title: Re: Hydro Assist:box and pump mods
Post by: superyota on Jan 28, 2011, 07:43:44 AM
Got my assist on, surplus ram, norm setup on toy axle. Stock pump, sotck res, no cooler. Bled works good, Lag isnt bad. When I put it in 4-6 inch rut, it struglles to crush it and turn through the ground, it flat out WONT unless I rev the engine, at which point pump whines and it will power through easily. Do i need to drill my pump out?
what size ram are you running?  i wouldn't recommend more than a 1.5.  any bigger,  you'll need a bigger pump.  I would be hesitant to tell you to drill out the restrictor on the pump if its whining now.  Sometimes drilling it out will make it whine more, but it will probably work better. check to see if your restrictor has been removed from your box incase it hasn't been already.
Title: Re: Hydro Assist:box and pump mods
Post by: Sparkplug on Jan 28, 2011, 10:42:40 PM
1.5 surpluscenter ram, where is said restrictor on box at?
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Jan 28, 2011, 11:45:02 PM
Got my assist on, surplus ram, norm setup on toy axle. Stock pump, sotck res, no cooler. Bled works good, Lag isnt bad. When I put it in 4-6 inch rut, it struglles to crush it and turn through the ground, it flat out WONT unless I rev the engine, at which point pump whines and it will power through easily. Do i need to drill my pump out?

Have you re-checked to make sure you have enough fluid in you reservoir especially when you are going lock to lock? Check it while someone else is turning the wheel for you. This may cause a squeel.

Quote from the guy that started this thread-
"From what I found, the guys who had a squaling issue after the pump mod were not running a cooler or some kind of additional fluid. When you drill the restrictor with stock capacity fluid, the fluid doesn't have enough time to cool. With my cooler added, my capacity is roughly 2-2.5 qts. You can usually get a decent tranny cooler from a parts store for $30-$40."

You may want to go thru the first few pages of this thread to see how others have handled your situation.
Title: Re: Hydro Assist:box and pump mods
Post by: Sparkplug on Jan 28, 2011, 11:56:49 PM
It only squeals when it gets stuffed in a rut and a try to crush it by turning. Otherwise it never makes a noise at all, but i will get it to squeal and have a bud check to see if air is getting in. If that is the case I will add a bigger res.

I have read this entire thread, along with other one, and every one I could find on pirate with hydro assist in the title. No one ever comments back enough to say how strong their hydro is, how much it can push.

If I rev it when its bound real hard, it will crush earth fine, say up to a foot of it, but it squeals, feels smooth tho, just squeals

My fluid never gets hot, this problem is not heat related, maybe possibly air related, or my expectations of hydro assist are too high
Title: Re: Hydro Assist:box and pump mods
Post by: superyota on Jan 31, 2011, 07:48:15 AM
1.5 surpluscenter ram, where is said restrictor on box at?
the restrictor is on the pressure side of the pump(outlet going to steering box).  take the line off, I think its a 14mm, once the line is off, there is a bigger fitting on the box that the line screws into(think it's a 17mm) that also needs to come off.  becareful when taking this piece off, there is a spring behind it, you don't want to lose it.  once you have that piece off, there is a little bushing looking piece inside with a hole in it that is your restrictor.  don't know off the top of my head what to drill it out to. hope this helps.
Title: Re: Hydro Assist:box and pump mods
Post by: Sparkplug on Feb 02, 2011, 12:10:35 AM
ah I know of restrictor in pump, I believe your post said on box, i got confused. said look to see if restrictor has been removed from box??
Title: Re: Hydro Assist:box and pump mods
Post by: superyota on Feb 02, 2011, 07:45:59 AM
ah I know of restrictor in pump, I believe your post said on box, i got confused. said look to see if restrictor has been removed from box??
there is a restrictor in the box, if its a 2nd gen ifs box(3rd gen truck) that must be removed completely.  It side under the 10mm allen plug right next to where the box is drilled and tapped on top.
The restrictor in the pump gets drilled out and installed back on(but this is not necessary unless you have lag problems).
Title: Re: Hydro Assist:box and pump mods
Post by: Sparkplug on Feb 02, 2011, 11:16:51 AM
eh, I never removed that, mine works fine other than one issue I posted, should I remove it? My box is off my 88 stock, I drilled and tapped it myself, it has like 280k on it.
Title: Re: Hydro Assist:box and pump mods
Post by: superyota on Feb 02, 2011, 11:32:25 AM
eh, I never removed that, mine works fine other than one issue I posted, should I remove it? My box is off my 88 stock, I drilled and tapped it myself, it has like 280k on it.
yes, the restrictor in the box has to be removed. the 10mm plug is usually a pain to remove.  I have always had to weld a nut or bolt to it so it can be removed.
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Mar 27, 2011, 12:23:42 AM
And heres Rick's pics from the same thread showing the work done to the 80 box.

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi166.photobucket.com%2Falbums%2Fu86%2Ffreds40%2F80box2.jpg&hash=12fae28487b50cea4bc7de88ff64b94f)

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi166.photobucket.com%2Falbums%2Fu86%2Ffreds40%2FFJ80box.jpg&hash=104692dc8a5b299c6e18269a6c2ede1b)

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fi166.photobucket.com%2Falbums%2Fu86%2Ffreds40%2F80box3.jpg&hash=807c16a14b9301560952133549c2f75b)





i wanted to tap my box the same way where you did it on far back does it matter what kind of box you have???? i got my kit through sky man, i can take pic and see what u guys think i can tell off hand what it is
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Mar 27, 2011, 12:27:51 AM
Is there any reason the IFS box can't be tapped similarly to the 80 box, rather than tapping directly into the vein?  It looks like the basic design of the boxes are the same, only bigger and reverse rotation on the 80 box.  If you look at the first two pictures, and compare it to the pics in posts 19 & 17, the "end cap" area looks to be the same design, w/ a seal area (shiny part around the end of the inside of the cavity) and the vein going into the recess at the end where the 80 box is drilled.  LMK if that makes sense to anyone other than me.  Seems like you'd save alot of worry

pretty much what he said is there a difference??
Title: Re: Hydro Assist:box and pump mods
Post by: Sparkplug on Mar 27, 2011, 12:31:00 AM
no, i would not think so, It may make it harder to mount it being in the front, depending on how you do your box and how far forward it is. I like it being in the top, and NOT drilling the other hole where everyone does, instead drilling it towards the rear of the box more in the open, nothing on the front of the box at all. Helps routing lines and mounting it in, and getting it to fit.
Title: Re: Hydro Assist:box and pump mods
Post by: yoshaleng on Mar 27, 2011, 12:54:11 AM
no, i would not think so, It may make it harder to mount it being in the front, depending on how you do your box and how far forward it is. I like it being in the top, and NOT drilling the other hole where everyone does, instead drilling it towards the rear of the box more in the open, nothing on the front of the box at all. Helps routing lines and mounting it in, and getting it to fit.

X2

I tapped mine on top and in front (toyoda) and when I decided to relocate my gear box and kick my axle forward another 1.5"...I now have to retap my box on the side due lack of space or access to connect hose back on.
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Mar 27, 2011, 02:05:08 AM
X2

I tapped mine on top and in front (toyoda) and when I decided to relocate my gear box and kick my axle forward another 1.5"...I now have to retap my box on the side due lack of space or access to connect hose back on.



yeah basically thats what i did my axle moved pretty far forward and i cut the front of my yota "literally made hole" for the box to go in and that front is open and that why i was wondering if i can tap it from there and just run that line down and do other tap on vein... 

ill try and take some pic but yeah its moved as far forward as posible ...
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Mar 28, 2011, 01:56:25 AM
ok so i went got tap hope its right one its a 1/4 18 npt tap  this is correct??
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Mar 29, 2011, 09:20:40 PM
??????
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Mar 31, 2011, 09:23:57 PM
ok so i went got tap hope its right one its a 1/4 18 npt tap  this is correct??

you have the right one
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Apr 01, 2011, 08:51:59 AM
Ok I tapped my box the top hole was ard but I tapped into vein, as I'm putting Ifs box together does it matter which way the pitman shaft goes in, the box has those gears inside so I put it in middle to line up or??
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Apr 01, 2011, 06:44:42 PM
Ok I tapped my box the top hole was ard but I tapped into vein, as I'm putting Ifs box together does it matter which way the pitman shaft goes in, the box has those gears inside so I put it in middle to line up or??
[/quot toothe]

Don't remember exactly. You should line a first tooth with a first. Don't line a first tooth in in between.
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Apr 01, 2011, 07:52:39 PM
That's hat Isis I had the tooth exposed and put it right in kide and put it in I just want to make sure I have the turning radius as I did before and did mess anything up u know
Title: Re: Hydro Assist:box and pump mods
Post by: golana on Apr 07, 2011, 01:23:44 AM
gunna do this mod again, but i hope i hit the mark this time haha! last box i did leaked cause i missed center on the top vein by like 1/16" and when i had resistance with steering, i would get a nice stream of fluid shooting out...

ive never seen any boxes with that 10mm allen head bolt... must be a US thing...
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Apr 09, 2011, 10:03:39 PM
Ok tapped my box looks good but!!   Fitting on side has little leak so how can I seal it and stop leak, it's leaking just bleeding system can I re tape with more Teflon tape???   Or can I use rtv sealeant???? Or??
Title: Re: Hydro Assist:box and pump mods
Post by: Sparkplug on Apr 09, 2011, 10:10:07 PM
you should NOT use teflon tape or anything that can break away and clog a line, NPT seals by the threads. Are the threads tapped deep enough? Mine leaked a tad at first, i tapped deeper, and tightened it down TIGHT, I got the paste that seals lines, it wont clog, and never dries. Just a thought
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Apr 09, 2011, 10:25:59 PM
Ok how far deep can you tighten it down??? Won't it hit??? The inside moving parts
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Apr 09, 2011, 10:26:46 PM
Yeah I tapped the threads deep deep as I can go. As far as tighten it im just worried going to far
Title: Re: Hydro Assist:box and pump mods
Post by: Sparkplug on Apr 09, 2011, 10:32:30 PM
if you tapped the threads all the way, then it wont get tight until it goes all the way. You should not have tapped them all the way down, I did prob 3 solid threads with a half thread on top and bottom, i didnt use tq wrench but i imagine around 45 ft lbs.
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Apr 09, 2011, 10:36:49 PM
Ok so tighten them all the way Down I'll try that the top fitting on vein looks no leaks it's other one I'll try tighten down more and go from there
Title: Re: Hydro Assist:box and pump mods
Post by: Sparkplug on Apr 09, 2011, 10:38:31 PM
if it hits, u can gall the threads up with something at the bottom, and usually make it work
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Apr 09, 2011, 10:40:23 PM
Gall the threads up????? ???? How to make it work?? 

Thanks for help anything works
Title: Re: Hydro Assist:box and pump mods
Post by: Sparkplug on Apr 09, 2011, 10:41:27 PM
chew the threads up, destroy them, take em out, so that it will only tighten to certain spot, first try to make it work how you have it now, tighten it down tight.
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Apr 09, 2011, 10:43:20 PM
Oh ok I see so basie destroy the threads at bottom??  Any ideas flat head screw driver or??  Just try and mess them up or??   
Title: Re: Hydro Assist:box and pump mods
Post by: Sparkplug on Apr 09, 2011, 10:45:43 PM
first try and tighten it down, if that fails, round file, or anyway u see fit.
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Apr 09, 2011, 10:46:46 PM
Lol thanks mAn I will try for sure!!!  I need this thing running
Title: Re: Hydro Assist:box and pump mods
Post by: -Matt- on Apr 09, 2011, 11:05:59 PM
Ya tapping it to deep won't allow you to get it tight enough and will leak. Teflon tape it  if that doesn't work you can always try what was stated above. If all else fails re drill and tap to 3/8  still works perfect and just be sure not to over tap it.
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Apr 11, 2011, 02:03:39 PM
What about thread lock???  I did some research they say loctite565 is good??  Any ideas ??? Best thread sealant ??  What out there
Title: Re: Hydro Assist:box and pump mods
Post by: golana on Apr 12, 2011, 08:20:05 AM
i tapped another P/S box and made a tutorial video about it, based on Freds40's guidelines.

http://www.youtube.com/watch?v=3RjBleDihU4
Title: Re: Hydro Assist:box and pump mods
Post by: rock-smasher on Aug 13, 2011, 04:33:48 AM
the lock tite tread sealant is good we use it on all hydro fittins where i work  it is good stuff the red tefflon tape is good to and it is a little thicker than the regular type
Title: Re: Hydro Assist:box and pump mods
Post by: 4rnr on Aug 16, 2011, 09:23:02 AM
I havent followed this thread since i did my assist in 06, so Im not sure what has been discussed since then....

Ive been running the parts mentioned in this thread plus a cooler. http://www.etrailer.com/Transmission-Coolers/Derale/D13250.html

When I had the 3.0 in my 4runner I was drilling out the pumps and going through them quite fast, faster than I realized. I started to pay attention after I swapped to a 3.4 and the 3.4 pump and I realized I was only getting 2 or 3 trail days out of a pump (OE or rebuild). So I bought a pump from oreillys with a lifetime warranty and kept a trail spare. On long wheeling trips I would have to change the pump in camp. Then I put in a stock unmodified pump, with a stock res (my large one leaked a little). That pump lasted over 2 years. I have not noticed a performance difference.

just my .02
Title: Re: Hydro Assist:box and pump mods
Post by: 85yotapolo on Aug 19, 2011, 10:51:14 PM
still got the leak on by ifs box,,, i tried everything simple only option now is bore out to bigger size,, im ready to throw some jb weld on this thing and just go lol
Title: Re: Hydro Assist:box and pump mods
Post by: golana on Aug 26, 2011, 02:41:07 PM
i am almost finished building my solid axle swapped 94 4runner with a 3.4L in it. i just got the steering done today, and noticed that it is normal to steer when the truck is off... but when i start the truck, its hard to steer. its comparable to having a welded 3rd in the front with manual steering...

i drilled out the restrictor on the 3.4L pump, but im wondering if the pump is dead... cause i honestly cant steer worth a damn... also, driving on the dirt road on my property, the truck bump steers like CRAZY!

any ideas?
Title: Re: Hydro Assist:box and pump mods
Post by: golana on Aug 27, 2011, 10:41:16 PM
im willing to bed my ps pump on the 3.4L is dead... anyone ever run a 22re pump on a 3.4? im thinking of fabbing up somr brackets and gettin 'er done tomorrow! i know the 22re pump worked awesome, and i have like 4 of them, so why not?
Title: Re: Hydro Assist:box and pump mods
Post by: golana on Aug 29, 2011, 10:19:37 AM
im willing to bed my ps pump on the 3.4L is dead... anyone ever run a 22re pump on a 3.4? im thinking of fabbing up somr brackets and gettin 'er done tomorrow! i know the 22re pump worked awesome, and i have like 4 of them, so why not?

couldnt find my 22re pumps, but i found a bunch of 3.0 pumps, and modified the brackets, the pulley, and the reservoir to work. so now i have power steering again, and its AWESOME with the assist!
Title: Re: Hydro Assist:box and pump mods
Post by: santa cruz crawler on Aug 30, 2011, 07:52:26 AM
That you tube video is sweet , good explination ! :beer:
Title: Re: Hydro Assist:box and pump mods
Post by: golana on Aug 30, 2011, 08:27:41 AM
That you tube video is sweet , good explination ! :beer:

thanks man :)

you can see my 4runner buildup if you watch the newer videos. i documented almost the whole build!
Title: Re: Hydro Assist:box and pump mods
Post by: superyota on Aug 30, 2011, 08:34:05 AM
couldnt find my 22re pumps, but i found a bunch of 3.0 pumps, and modified the brackets, the pulley, and the reservoir to work. so now i have power steering again, and its AWESOME with the assist!
you got any pics?
Title: Re: Hydro Assist:box and pump mods
Post by: golana on Aug 30, 2011, 08:40:33 AM
you got any pics?

ive got a video... i tend to take way more videos than pictures... i should have taken a picture of the main bracket though... i had to grind a decent amount off it...

http://www.youtube.com/watch?v=4ytlaMdTzGw
Title: Re: Hydro Assist:box and pump mods
Post by: Quick Draw on Oct 27, 2011, 08:02:30 AM
So I was going to tap my box last night but when I when I got on here for instructions, none of the pictures would load.  Same thing on the instructions on wildyoats.  We tried a couple different phones and computers. Same thing.  Is it just me or are the pictures gone?  I'll try that you tube video later.
Title: Re: Hydro Assist:box and pump mods
Post by: SloCrawler on Oct 27, 2011, 08:14:56 AM
just you, works on my computer
Title: Re: Hydro Assist:box and pump mods
Post by: slowngreen on Nov 14, 2011, 11:55:32 AM
So I was going to tap my box last night but when I when I got on here for instructions, none of the pictures would load.  Same thing on the instructions on wildyoats.  We tried a couple different phones and computers. Same thing.  Is it just me or are the pictures gone?  I'll try that you tube video later.

None of the pics work for me either. Just a 404 error...
Title: Re: Hydro Assist:box and pump mods
Post by: Rob84pkup on Nov 14, 2011, 05:51:44 PM
Great info
Title: Re: Hydro Assist:box and pump mods
Post by: Quick Draw on Nov 15, 2011, 08:28:08 AM
Good, so I'm not crazy. 

So I took some bad advice on doing this.  I was basically under the impression, that you would have to be an idiot to drill all the way through the top vein, and that you can totally tell when it hits it.  Nope.  Apparently not when you have a brand new, very sharp 1/8" drill bit for the pilot hole.  That damn thing just kept on cruising, and I was through the other side before I knew what hit me.  I didn't feel the drill bit sink or anything.  SO...apparently I'm an idiot.
Title: Re: Hydro Assist:box and pump mods
Post by: superyota on Nov 15, 2011, 08:48:30 AM
Good, so I'm not crazy. 

So I took some bad advice on doing this.  I was basically under the impression, that you would have to be an idiot to drill all the way through the top vein, and that you can totally tell when it hits it.  Nope.  Apparently not when you have a brand new, very sharp 1/8" drill bit for the pilot hole.  That damn thing just kept on cruising, and I was through the other side before I knew what hit me.  I didn't feel the drill bit sink or anything.  SO...apparently I'm an idiot.
lol.  I did the same thing on my first box that I drilled and tapped. 
Title: Re: Hydro Assist:box and pump mods
Post by: 4XFlyin on Nov 17, 2011, 08:44:51 PM
I wish my drill bits were that efficient for other stuff I need to drill. LOL

Good, so I'm not crazy. 

So I took some bad advice on doing this.  I was basically under the impression, that you would have to be an idiot to drill all the way through the top vein, and that you can totally tell when it hits it.  Nope.  Apparently not when you have a brand new, very sharp 1/8" drill bit for the pilot hole.  That damn thing just kept on cruising, and I was through the other side before I knew what hit me.  I didn't feel the drill bit sink or anything.  SO...apparently I'm an idiot.
Title: Re: Hydro Assist:box and pump mods
Post by: Sparkplug on Nov 17, 2011, 08:53:19 PM
I dont use a pilot bit on them, its not needed, the box material is soft, and a small bit goes too fast and makes it hard to see when you hit it
Title: Re: Hydro Assist:box and pump mods
Post by: Quick Draw on Nov 22, 2011, 09:24:12 AM
Well I finally tapped a box correctly and got this to work.  It's awesome!  This made the truck so much easier to drive down the road.  No more crazy bump steer or wiggles.  I don't have to slow way down for potholes anymore.  I can't way to test it on the trail this weekend.
Title: Re: Hydro Assist:box and pump mods
Post by: John Doe on Dec 18, 2011, 11:33:05 PM
Any chance we can get the pictures back?

What size inserts/fittings is everyone using when they tap the box?
Title: Re: Hydro Assist:box and pump mods
Post by: -Matt- on Dec 18, 2011, 11:55:33 PM
1/4" NPT to JIC-6 fittings for the box.
Title: Re: Hydro Assist:box and pump mods
Post by: theslayer85 on Dec 28, 2011, 04:32:01 PM
I went to read this again as I was planning on doing this mod and the pictures were not working.  Is my computer being dumb or is the web site not letting me see them?
Title: Re: Hydro Assist:box and pump mods
Post by: Quick Draw on Dec 28, 2011, 06:01:29 PM
They have been down for awhile... not sure why.  Check out the Youtube video on the last page.  That was a big help for me.
Title: Re: Hydro Assist:box and pump mods
Post by: kdub0013 on Jan 18, 2012, 12:40:06 PM
Once out, turn the restrictor upside down on a hard surface and tap a couple of times. A bushing will fall out. Now drill the orifice in the restrictor out to 13/64. After drilled out, put the bushing back in and bolt it all back together.
Now, some people get nervous because @ this stage, your ram will not keep up with the speed in which you are trying to turn. A simple 10 min. pump mod will take care of the problem. Some people shim the spring inside which I have heard will burn up a pump. For this part, I used a 13/64 drill bit, drill, 17mm combination wrench, and a crescent wrench. Remove the High pressure line from the pump and then the restrictor itself. When removing the restrictor, be careful that the spring inside and the plunger do not shoot out and become lost. If you are careful, they will just sit inside when you remove the restrictor.


Am I missing something here? I thought there used to be pictures of the pump and restrictor plate but I can't find it anymore.  :headscratch:
Title: Re: Hydro Assist:box and pump mods
Post by: boomtacoma01 on Feb 07, 2012, 11:51:20 AM
They are not loading for me as well
Title: Re: Hydro Assist:box and pump mods
Post by: yoterk1d2 on Feb 20, 2012, 09:55:57 AM
Hi guys, i am getting ready to put the hydro assist on my yota,. I was just wondering if its pretty much tha same procedure for the newer style boxes as well? Any feedback would be great!
Title: Re: Hydro Assist:box and pump mods
Post by: Quick Draw on Feb 20, 2012, 12:16:11 PM
Hi guys, i am getting ready to put the hydro assist on my yota,. I was just wondering if its pretty much tha same procedure for the newer style boxes as well? Any feedback would be great!

The newer style boxes have the centering valve thing that comes out with the 10mm allen.  For me, that thing would not come out without an easy out.  It's a huge pain, but I believe the newer style box is covered in the procedure.
Title: Re: Hydro Assist:box and pump mods
Post by: Quick Draw on Mar 16, 2012, 12:04:14 PM
Has anybody else bent their sector shaft yet?  I pulled mine off to tap the pressure left line in a different spot, and there's a noticeable drag part way through the steering.  I pulled out the sector shaft and it looks ever so slightly bent...  It's probably only a few thousandths off, but it's enough that the shaft is a big pain to pull out, and when it's part way out and I rotate it, you can sort of see that it's not concentric with the box.  I'm sure that means the bearings are failing too. 

I need a new box anyway for a variety of reasons, but I'm going to have to run it this way a little longer until I pick up and tap a new one.
Title: Re: Hydro Assist:box and pump mods
Post by: BIGdrew on Jun 07, 2012, 06:03:17 PM
so i tapped my box and the fitting on the top vain will only thread in like a turn and a half...I dont think i can run the tap far enough into the hole to get the right taper for the 1/4 pipe thread...thought about cuttin my tap down but dont really wanna ruin it. Any suggestions??? Input Please!
Title: Re: Hydro Assist:box and pump mods
Post by: BIGdrew on Jun 07, 2012, 06:07:17 PM
Has anybody else bent their sector shaft yet?  I pulled mine off to tap the pressure left line in a different spot, and there's a noticeable drag part way through the steering.  I pulled out the sector shaft and it looks ever so slightly bent...  It's probably only a few thousandths off, but it's enough that the shaft is a big pain to pull out, and when it's part way out and I rotate it, you can sort of see that it's not concentric with the box.  I'm sure that means the bearings are failing too.

I need a new box anyway for a variety of reasons, but I'm going to have to run it this way a little longer until I pick up and tap a new one.

I broke the sector shaft in half right above the splines...on a ifs with 33s without hydro...Ive also seen boxes that the splines are bent\ twisted....anything is possible!
Title: Re: Hydro Assist:box and pump mods
Post by: Danimal415 on Aug 31, 2013, 10:28:57 AM
What fluid do ya'll use in your hydro assist resies?

I bought the rig from a friend of mine several years back and he says I should use Chevy PS fluid?

But something tells me he needs to out down the pipe!

I have the PSC kit with a modified Toy box.

Any insight is appreciated.
Title: Re: Hydro Assist:box and pump mods
Post by: twistedtoy92 on Aug 31, 2013, 12:23:10 PM
Dex III
Title: Re: Hydro Assist:box and pump mods
Post by: kdub0013 on Sep 02, 2013, 09:21:28 PM
Just use power steering fluid.
Title: Re: Hydro Assist:box and pump mods
Post by: Quick Draw on Sep 04, 2013, 04:29:14 PM
Toyota pumps don't like power steering fluid.  They like ATF.  Use ATF, or they will die in 1000 miles.  Ask me how I know.
Title: Re: Hydro Assist:box and pump mods
Post by: OOPS on Sep 04, 2013, 05:46:30 PM
Toyota pumps don't like power steering fluid.  They like ATF.  Use ATF, or they will die in 1000 miles.  Ask me how I know.
When I was running HA I ran ATF and a modded pump, I went through three pumps in one season, Bought a PSC pump and have not had a problem since.

Title: Re: Hydro Assist:box and pump mods
Post by: Chuyota on Aug 10, 2014, 02:26:56 PM
Anyone have this problem after they tapped the box???
(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fimg.tapatalk.com%2Fd%2F14%2F08%2F11%2Fzu5urepa.jpg&hash=285230fa9fa250a98b7b4b440c7a2f0c)


I took it apart and rechecked the o-ring and it seems to be ok.

(https://board.marlincrawler.com/proxy.php?request=http%3A%2F%2Fimg.tapatalk.com%2Fd%2F14%2F08%2F11%2F8ageha9y.jpg&hash=1b26cfdfdd5af570f21d05e01ef2bc06)
Should I take the input shaft apart and change the seal?
Any input would be greatly appreciated.
 
Title: Re: Hydro Assist:box and pump mods
Post by: lucky7 on Feb 16, 2015, 06:31:27 PM
My ? Is are you still running the feed through the abs on or using a new line straight to the box??
Title: Re: Hydro Assist:box and pump mods
Post by: SqWADoosh on Aug 25, 2015, 07:57:40 AM
Now, some people get nervous because @ this stage, your ram will not keep up with the speed in which you are trying to turn. A simple 10 min. pump mod will take care of the problem. Some people shim the spring inside which I have heard will burn up a pump. For this part, I used a 13/64 drill bit, drill, 17mm combination wrench, and a crescent wrench. Remove the High pressure line from the pump and then the restrictor itself. When removing the restrictor, be careful that the spring inside and the plunger do not shoot out and become lost. If you are careful, they will just sit inside when you remove the restrictor.

Once out, turn the restrictor upside down on a hard surface and tap a couple of times. A bushing will fall out. Now drill the orifice in the restrictor out to 13/64. After drilled out, put the bushing back in and bolt it all back together.

Does anyone know if this applies to the 3RZ pump as well?
Title: Re: Hydro Assist:box and pump mods
Post by: epantano on Oct 10, 2018, 11:36:56 PM
Now, some people get nervous because @ this stage, your ram will not keep up with the speed in which you are trying to turn. A simple 10 min. pump mod will take care of the problem. Some people shim the spring inside which I have heard will burn up a pump. For this part, I used a 13/64 drill bit, drill, 17mm combination wrench, and a crescent wrench. Remove the High pressure line from the pump and then the restrictor itself. When removing the restrictor, be careful that the spring inside and the plunger do not shoot out and become lost. If you are careful, they will just sit inside when you remove the restrictor.

Is this similar to how a 3rz pump would be? I'm swapping my engine and have already tapped out the steering box.