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Old March 23rd, 2013, 07:38 PM   #1
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Default YJ hydro assist.

Installing hydro assist on my YJ.

How does it look so far?

I ordered a rebuilt YJ steering box and will drill and tap it tomorrow when I get it.






Last edited by firehawk; March 23rd, 2013 at 07:41 PM.
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Old March 23rd, 2013, 09:16 PM   #2
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I'm not a fan of welding both ends as it gives you no adjustment. But, if you're sure you have it centered right, it looks good.
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Old March 23rd, 2013, 09:28 PM   #3
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Quote:
Originally Posted by whiterhino View Post
I'm not a fan of welding both ends as it gives you no adjustment. But, if you're sure you have it centered right, it looks good.
I turned it all the way in both directions marking the crossover bar and my first mark was within 1/8" of the second. I have a welder so if it needs adjustment I can handle it, I will be double checking it tomorrow when I get a rebuilt YJ box before I final weld it.

It does not turn enough to hit the steering stops, the crossover hits the diff cover but the ram is at its full travel. So that is the max steering I can have I guess. If I put a bend in the crossover bar to clear the diff cover then it seems I would need a longer stroke cylinder.

I would like a tighter turning radius but with a spool in the rear I am not sure it would help much anyway.

Is your front axle stretched? That Astro box would not fit in the factory location, it hit the radiator. Everything I read said it is a good option of custom mounting it and for a front stretch.

I am getting a rebuilt YJ box tomorrow and and going to drill and tap that as the one in my YJ leaks and does not work well, might replace the pump too. That should be the easiest way to get it working and if I stretch the front when I link it I might use the Astro box then.
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Old March 27th, 2013, 09:43 PM   #4
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Finished welding it all up today and painted it, will install it tomorrow. It cycled fine.

Looking forward to 3 or 4 linking the front.
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Old March 27th, 2013, 11:02 PM   #5
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Old March 28th, 2013, 06:21 AM   #6
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Yes, my front is stretched about 5".
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Old March 28th, 2013, 06:43 AM   #7
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nice!
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Old March 28th, 2013, 07:13 AM   #8
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Is it normal for the steering rate to be slower with the assist? With the front end on jack stands and turning in back and forth it seems to have some resistance. I have not yet tried it on the ground or while driving it yet as I need to put the passenger side of the axle back together, about to go do that now that the sun is coming up.
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Old March 28th, 2013, 07:42 AM   #9
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Are you fully bled? And did you tap the box yourself?
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Old March 28th, 2013, 08:40 AM   #10
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Quote:
Originally Posted by MiNi Beast View Post
Are you fully bled? And did you tap the box yourself?
Yes on both.

Comparing a typical steering box to hydro assist. Its not real hard but not easy to spin the wheel with one finger like my truck, 2003 GMC.

I did get a rebuilt steering box and tapped that.
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Old March 28th, 2013, 08:52 AM   #11
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Didid you tap it correctly? Do any work internally? You running plenty of fluid?
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Old March 28th, 2013, 09:13 AM   #12
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Mechanical steering is typically faster than hydro or hydraulic. But not a big difference, you'll get used to it.
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Old March 28th, 2013, 01:03 PM   #13
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Quote:
Originally Posted by whiterhino View Post
Mechanical steering is typically faster than hydro or hydraulic. But not a big difference, you'll get used to it.
That is what I figured.

First time experiencing hydro steering.
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Old March 31st, 2013, 07:51 AM   #14
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The hydro worked pretty good yesterday, it is slow though and I do not have full steering, not that I did before the hydro assist. The box and ram do not have enough travel to make the knuckles hit the stops.

I would like to try out hydro assist on someone elses rig or they can try mine and tell me if it feels right. It seems hard to turn at times but could just be a slow ram?
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Old March 31st, 2013, 10:08 AM   #15
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Are you running just a stock pump?
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Old March 31st, 2013, 10:44 AM   #16
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did you mod your pump for more flow?
pump mod link
http://westtexasoffroad.homestead.co...rsteering.html
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Old March 31st, 2013, 10:48 AM   #17
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Quote:
Originally Posted by MiNi Beast View Post
Are you running just a stock pump?
Yes

No noise from it but it does kinda feel the same as before I switched the box and and added the hydro. Kinda like it catches or sticks for a moment.
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Old March 31st, 2013, 10:48 AM   #18
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Quote:
Originally Posted by XJcoupe View Post
did you mod your pump for more flow?
pump mod link
http://westtexasoffroad.homestead.co...rsteering.html
No but I did just read about that earlier from a different post.
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Old March 31st, 2013, 10:52 AM   #19
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Sounds like a need to increase flow, yo!
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Old March 31st, 2013, 11:22 AM   #20
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I never modded my pump.
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