Author Topic: Hydro Assist:box and pump mods (Read 338317 times)

FIREBALL · « **Reply #60 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.

freds40 · « **Reply #61 on:** Aug 23, 2005, 09:26:03 AM »

Quote from: 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?

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.

vikingsven · « **Reply #62 on:** Aug 23, 2005, 09:42:11 AM »

What size hose is recommended for the hydro lines?

FIREBALL · « **Reply #63 on:** Aug 23, 2005, 10:02:45 AM »

1/4 x 36" single wire hydraulic lines that were $7.35 each. PN 916-1436.

freds40 · « **Reply #64 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.

hybridtheory · « **Reply #65 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.

Tice · « **Reply #66 on:** Sep 05, 2005, 09:59:36 PM »

Quote from: 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.

From a parts store or the surplus place (I forgot the name

) you talked about in the beginning of this thread? I got my ram the other day

,I got a 2 inch, 8 inch stoke, now I need my cross over stuff!!

freds40 · « **Reply #67 on:** Sep 06, 2005, 05:59:00 PM »

Quote from: 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.

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.

freds40 · « **Reply #68 on:** Sep 06, 2005, 05:59:55 PM »

Quote from: Tice on Sep 05, 2005, 09:59:36 PM

From a parts store or the surplus place (I forgot the name ) you talked about in the beginning of this thread? I got my ram the other day ,I got a 2 inch, 8 inch stoke, now I need my cross over stuff!!

Those were from Surplus Center as well.

alwayzbroken · « **Reply #69 on:** Sep 06, 2005, 10:54:08 PM »

This is on surplus center's website.

freds40 · « **Reply #70 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.

GregBennett · « **Reply #71 on:** Oct 13, 2005, 08:47:59 PM »

I figured it needed a bump. Good tech write-up.

FIREBALL · « **Reply #72 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.

freds40 · « **Reply #73 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.

KYOTA · « **Reply #74 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.

Duffil · « **Reply #75 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.

freds40 · « **Reply #76 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.

freds40 · « **Reply #77 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.

sdiker · « **Reply #78 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.

Willy Mammoth · « **Reply #79 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.

KYOTA · « **Reply #80 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

freds40 · « **Reply #81 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.

sdiker · « **Reply #82 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,

KYOTA · « **Reply #83 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

freds40 · « **Reply #84 on:** Nov 05, 2005, 11:26:54 AM »

Yeah I had looked into running ANs juist for the

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?

KYOTA · « **Reply #85 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

oh well the steering will be worth it.

alwayzbroken · « **Reply #86 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.

sdiker · « **Reply #87 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.

freds40 · « **Reply #88 on:** Nov 06, 2005, 06:44:05 PM »

KYOTA · « **Reply #89 on:** Nov 20, 2005, 04:43:32 PM »

Quote from: freds40 on Nov 05, 2005, 11:26:54 AM

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

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