Outer Limits 4x4 Board

Hey all,
still having probs with the power steer on my 60. Am needing a solution for this. Whilst tyres running low psi, steer is getting worse and worse... even affecting on road steer at normal pressure now too.
Have been to a steer specialist(or so they reckon they are!!! )on the coast here.
Had given them an extra pump and 2 extra boxes to sort the problem out, to no avail. Ended up getting sick of them not diagnosing the prob after 3 visits, and quite a few $$$$!!!

Would an 80 series box be a better choice??? and maybe a bigger an 80 series pump too... or bigger size pump????

What are peoples thoughts????

Cheers!

could it be that the chev has a different size crank
pulley to the original causing the pump to work
slower than intended equaling less preasure

RV wrote:could it be that the chev has a different size crank
pulley to the original causing the pump to work
slower than intended equaling less preasure

Ok, will check that against my other 60 with the standard 2H.

Any other ideas while i'm going?????

brighty wrote:

RV wrote:could it be that the chev has a different size crank
pulley to the original causing the pump to work
slower than intended equaling less preasure

Ok, will check that against my other 60 with the standard 2H.

Any other ideas while i'm going?????

If you where to clutch it while coasting up to a corner and bring the engine revs up would it make the steering lighter?

kinda sounds like my 70 series... unless you rev the motor pwr steer is just nonexisitant...

might be a pump problem... if its not the pulley ratios.. could be a relief valve stuck open...

DAZ wrote:

brighty wrote:

RV wrote:could it be that the chev has a different size crank
pulley to the original causing the pump to work
slower than intended equaling less preasure

Ok, will check that against my other 60 with the standard 2H.

Any other ideas while i'm going?????

If you where to clutch it while coasting up to a corner and bring the engine revs up would it make the steering lighter?

OK, back onto this again..... got sick of it and just put up with it.

** The crank on the chev is 200mm in dia... and the crank on a 2H is 150mm in dia. So if running at the same RPM wouldn't the chev be turning the pump quicker??? (I get confused on this shiat so I could well be wrong!!!)

** The pump is also relocated onto the opposite side of the engine bay compared to a standard 60, which means the line feeding from the pump to the box is approx 1050mm longer than the standard line. Would this be causing a problem with it having to try to push too much fluid through to the box???

** and if I rev'd it whilst clutching it.. it would help, but only very marginally....


that's about all the info I can give at the moment.... if all else fails, I'll take the pump and box outta my stocko 60 and put that in there and see what it says..... I know they're good for turning 33's!!!!

Steering damper could have something to da with this

What did the 'egspurts' do to the box &/or pump?
Did they overhaul both or just clean & paint them......

What type of fluid are you using? The usual power steer fluid (auto tranny fluid) or something diff?

No restrictions/kinks/blockages in the lines?

As Skootin suggested, the s/damper isnt partially seized/dented?

Pulley is tight on the shaft?
Belt the correct size for the pulleys?

Yeah, startin to scrape the bottom now.............

Sixty wrote:What did the 'egspurts' do to the box &/or pump?
Did they overhaul both or just clean & paint them......

What type of fluid are you using? The usual power steer fluid (auto tranny fluid) or something diff?

No restrictions/kinks/blockages in the lines?

As Skootin suggested, the s/damper isnt partially seized/dented?

Pulley is tight on the shaft?
Belt the correct size for the pulleys?

Yeah, startin to scrape the bottom now.............

the "egspurts" as you put it... said that the box and pump had a little less turniing power one side.... can't remember which side it was. But apart from that they just told me it had the 'usual' signs of a box that old. They couldn't guanantee that if they reco'd it/them that it'd fix the prob. Not something I wanted to spend $1000+ on, to have both rebuilt and no difference from before.

there is no kinks or blockages, checkd that.

S'damper.... no visible signs of damage, but will swap them over to eliminate that.

Belts are correct size and not too tight.... but not slipping either!!!

With the s/damper, just undo one end and tie it up out of the road. Then a lap around the block will tell you if its that.

But it sounds like the s/box and/or pump are very worn internally. Bite the bullet and get the box o/hauled!!!!!!!!!!!!!!!

yep a larger drive pulley on the crank will turn your power steer box faster.

What revs does the chev get to, a 2H redlines at 3,250RPM so if your CHEV does the same perhaps the pump is turning too fast at high rpm and could be damaging the pump or box, or maybe stressing the pressure reliefe system so that your not getting full pressure at low revs anymore.

Sixty wrote:With the s/damper, just undo one end and tie it up out of the road. Then a lap around the block will tell you if its that.

But it sounds like the s/box and/or pump are very worn internally. Bite the bullet and get the box o/hauled!!!!!!!!!!!!!!!

I fully agree with you here.... but when they said "they cannot guarantee that it'll fix the prob" I can't justify spending that much $$$ before I eliminate all other avenues. If I can test every other possibility and it still doesn't work, then I'll go the rebuild.

Just need to do this all ASAP

anymore ideas???

The starter motor goes back in today, so now I can start playing with it to try to solve the steering prob.... hopefully!!!!

besides the box being worn, the only thing left is fluid type.

Sixty wrote:besides the box being worn, the only thing left is fluid type.

nup, just running norm auto tranny fluid. Guess it's time to rebuild then huh???

YEP!!

My power steering was pretty crappy and leaked a lot, it would moan and fail at times. Figuring it was screwed I loosened the belt to the pump so that if the pump was having issues it'd just slip and not do too much damage as I was up for a trip away for 2 weeks.

Since then it has been perfect, and you wouldn't have figured it was too tight, it was buggered when I bought the vechicle and it had seen 2 mechanics, the belt had some give in it when I inspected it.

Try loosening it a bit so the pump isnt struggling or if its worn some it isn't pulled so hard off center..