Author Topic: Hydro Assist:box and pump mods  (Read 228338 times)

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John Doe

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Re: Hydro Assist:box and pump mods
« Reply #390 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?
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Re: Hydro Assist:box and pump mods
« Reply #391 on: Dec 18, 2011, 11:55:33 PM »
1/4" NPT to JIC-6 fittings for the box.

theslayer85

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Re: Hydro Assist:box and pump mods
« Reply #392 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?

Quick Draw

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Re: Hydro Assist:box and pump mods
« Reply #393 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.
'80 Pickup, 5VZ-FE engine, A340F transmission, Marlin gear drive adapter, Dual Ultimate transfer cases, 5.29 gears, Detroit rear/Lockrite front locker, 37" Goodyear MTRs, XRC8 winch, custom tube bed and armor

kdub0013

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Re: Hydro Assist:box and pump mods
« Reply #394 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:

boomtacoma01

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Re: Hydro Assist:box and pump mods
« Reply #395 on: Feb 07, 2012, 11:51:20 AM »
They are not loading for me as well
85 Ext Cab 22RE, 3 Linked front D60, 14B, Full Hydro and 40s
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yoterk1d2

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Re: Hydro Assist:box and pump mods
« Reply #396 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!

Quick Draw

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Re: Hydro Assist:box and pump mods
« Reply #397 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.
'80 Pickup, 5VZ-FE engine, A340F transmission, Marlin gear drive adapter, Dual Ultimate transfer cases, 5.29 gears, Detroit rear/Lockrite front locker, 37" Goodyear MTRs, XRC8 winch, custom tube bed and armor

Quick Draw

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Re: Hydro Assist:box and pump mods
« Reply #398 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.
« Last Edit: Mar 16, 2012, 12:10:11 PM by Quick Draw »
'80 Pickup, 5VZ-FE engine, A340F transmission, Marlin gear drive adapter, Dual Ultimate transfer cases, 5.29 gears, Detroit rear/Lockrite front locker, 37" Goodyear MTRs, XRC8 winch, custom tube bed and armor

BIGdrew

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Re: Hydro Assist:box and pump mods
« Reply #399 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!

BIGdrew

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Re: Hydro Assist:box and pump mods
« Reply #400 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!

Danimal415

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Re: Hydro Assist:box and pump mods
« Reply #401 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.

twistedtoy92

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Re: Hydro Assist:box and pump mods
« Reply #402 on: Aug 31, 2013, 12:23:10 PM »
Dex III
2005 Audi A4 2.0T Quattro 380 AWHP @ 24psi
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1992 Toyota Pickup http://board.marlincrawler.com/index.php?topic=49319.msg616251#msg616251
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kdub0013

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Re: Hydro Assist:box and pump mods
« Reply #403 on: Sep 02, 2013, 09:21:28 PM »
Just use power steering fluid.

Quick Draw

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Re: Hydro Assist:box and pump mods
« Reply #404 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.
'80 Pickup, 5VZ-FE engine, A340F transmission, Marlin gear drive adapter, Dual Ultimate transfer cases, 5.29 gears, Detroit rear/Lockrite front locker, 37" Goodyear MTRs, XRC8 winch, custom tube bed and armor

OOPS

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Re: Hydro Assist:box and pump mods
« Reply #405 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.

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Chuyota

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Re: Hydro Assist:box and pump mods
« Reply #406 on: Aug 10, 2014, 02:26:56 PM »
Anyone have this problem after they tapped the box???



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


Should I take the input shaft apart and change the seal?
Any input would be greatly appreciated.
 

lucky7

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Re: Hydro Assist:box and pump mods
« Reply #407 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??

SqWADoosh

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Re: Hydro Assist:box and pump mods
« Reply #408 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?

epantano

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Re: Hydro Assist:box and pump mods
« Reply #409 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.

 
 
 
 
 

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