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Bleeding power steering?
Posted: Thu Mar 13, 2008 9:09 pm
by Hulksta
Hi all ive just fitted a GU box to my GQ and am now having some trouble bleeding it
Is there any tips/tricks to bleeding the system?
Cheers
Dan
Posted: Thu Mar 13, 2008 9:20 pm
by udm
i think all you have to do is turn the steering wheel a few times (left to right), i dont think there is anything more to it.
Posted: Thu Mar 13, 2008 9:25 pm
by cooter
jack the front end up and turn from lock to lock slowly some boxes have a bleed screw on top not sure if the gu will have but
Posted: Fri Mar 14, 2008 12:09 am
by Hulksta
Yeah thats what i thought

ive tried that, also tried the bleed screw but nothing coming out

I'll have another look in the morning when ive got some better light...
Posted: Fri Mar 14, 2008 7:21 am
by bazzle
Also let it sit for a while between tries or it will foam and you wont bleed it.
BAzzle
Posted: Fri Mar 14, 2008 8:24 am
by 904Runa
when i bled the box on my 4runner, i had the motor idling (so steering pump running) and one of those supercheap one-man bleeder hoses on the bleed screw so i could see when the air bubbles had all gone. No fluid would come out of the hose unless the pump was doing some work which was when i was turning the steering wheel from lock to lock. But the fluid pump rate increased when i held it on a lock so this must be where the pump is doing the most work and the engine idle dropped a bit at this point too.
yeah its obvious but are you making sure you keep the reservoir topped up as you try to bleed it? its like brakes or hydro clutch. Once the reservoir runs dry have to start all over again.
Posted: Fri Mar 14, 2008 2:14 pm
by Hulksta
Went out today to have another look... i could see why i couldn't get it to bleed

the belt had come off the pump, a rag i had in the engine bay cleaning up some of the fluid found its way to the belt and knocked it off
