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Old July 24th, 2011, 02:49 PM   #1
big86inthestixx
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Default hydro assist head scratcher

So I currently have hydro assist steering, worked good until I burned my pump up this year.I installed a new power steering pump a factory one since the last one worked for three years, now with new pump I can only turn to passenger side of jeep it won't turn to driver's side. Any ideas? What is causing this, it is in my YJ with a SBC in it. Are seals burned out of my ram possibly.
Thanks for the help guys.
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Old July 24th, 2011, 03:25 PM   #2
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If you have what I think you have it is a cylinder tapped into the box housing near the valve assist ports.
How did the original pump die?
If it worked good until the orig. croaked it would lead me to believe there is some trash in the control valve in the box or a seal went bad.
The pumps primary function is to produce flow. Pressure is a byproduct when there is a restriction to flow ie. turning the wheel and actuating the valve.
If the piston seal was junk I would think it would leak in both directions(depending on what style seal was used).
Just for shits and grins jack the front end up and fire the motor. If it drifts one way it would be a good guess that you've lost seals on the valve.
This is all assuming you have a GM/saginaw/delphi box.
One way to check the cyl is pull the lines off of the cyl. Turn the wheel lock to lock a couple of times to evacuate the oil from the cyl. Turn to lock in one direction, put your finger over the fitting on the end you turned to. Have a helper turn the other way. It should pull and hold a vacuum. Try both directions.
If you end up needing work on the box I know where it can be done and I know where parts are available reasonably (assuming gm 700 series). A valve and adjuster nut seal kit will run about 30 bucks for the pair. But, if you've got crap floating around in the system it would be a good idea to remove EVERYTHING and flush/clean thoroughly.
I'll try to remember to check back in if you have ?'s.
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Old July 24th, 2011, 03:35 PM   #3
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I found some box pics here;
http://www.fourwheeler.com/techartic.../photo_10.html
If you get to the point where you think the box needs to come apart and you feel froggy enough to do it I can give you some pointers b 4 you dig into it. One thing though - DO NOT LOSE THE BALLS.
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Old July 24th, 2011, 04:12 PM   #4
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Yeah you are exactly right, it quit working right when my pump died, it is a factory jeep box, with a GM pump hooked to it, i tapped the box few years ago using redneck ram's directions. So i sounds as if there is a pretty good possibility i have a bunch of crap in the box.
Your saying that if i unhook my two lines going to my hydro ram then turn the wheel lock to lock and see if i can flush it out, that may work...if that doesn't ill have to get some of the seals and guts on the inside.
Not to get off topic, but say i had to get the guts for the inside, only being 30-50 bucks, does a normal box hold up just as good as the redneck ram boxes, and PSC boxes or would it be smarter to get a good box?
Other thing, what are your thoughts on full hydraulic steering...mine may see about 30 miles of road time a year, the rest is trails and Offroad parks. So going full hydro doesn't really bother me a lot just curious as to its advantages over hydro assist.
Thanks again.
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Old July 24th, 2011, 04:14 PM   #5
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oops one more thing, where would a guy like me get a box rebuild kit for my steering box? Napa, auto value...or is it a dealer part?
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Old July 24th, 2011, 05:01 PM   #6
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Did you drill/tap the box when it was assembled?
Reread the part about evacing the cyl. then checking for vacuum. This should give an indication about the cylinder.
I'm not sure what a stock pump on a Jeep looks like. Does it have a steel can around it(prolly a P pump), plastic clip on(cb, tc, maybe others), remote resevoir(variation of cb, tc and maybe some others).
Does the box look like the one in the link?
I'm sure napa would have a seal kit for your box. I've had luck finding some very strange things at rock auto. Their site is a little odd but they had what I needed.
Or......... if you want to have the box gone through by someone else you could send/drop it off here;
http://sweetmfg.biz/www.sweetmfg.biz...tive_page_id=1

I would want to ask you a couple more questions first to make sure it is a box we stock parts for.
IIRC labor is 102.75 plus parts.
box sl kit is a tad under 30
valve seal kit approx 15
pit shaft brng about 8

Rereading your last ? everyone uses basically the same box. Some will tell you the've got some secret "mojo" but it is BS. The only difference really is pitman shaft support brngs. Some use extra bushings,bearings or stay with the stock setup. Something like a psc would just be pretapped for the extra boost ports.
As long as you didn't drill into an area where the valve glide rings ended up close to a port (extruded out under pressure) your housing should be reuseable. I've had some that people pulled out of a junk yard that had water inside of them for WAY too long and I ended up dropping in the circular file.
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