Thread: Vn V8 power steering pump failure??

Hi All

I have just built a 355 vn commodore , now a quick bit of background lol
I pulled the car apart 2 and a half years ago for the build and finally got it back on the road last week to find that i have absoloutly no power steering
Now the power steering worked perfectly before the build and the only thing i have had removed from the vehicle power steering wise is the pump (which has been sitting dry for that time frame). I loosened the high pressure line on the rack and there is little to no fluid pressure from the pump, also there is hardly any fluid flowing through the return line to the pump.

Now the main questions presuming the pump has failed is = does anyone know why a pump would fail after it has just been sitting for a long period of time ? I am thinking there maybe some internal seals (that are required for pressure ) that may have dried up overtime and blown out ??

Any ideas or information on the internals of these pumps would be greatly appreciated

Thanks ALL

Hey guys :-)
Finally fixed it lol . I removed the pump and removed the outlet high pressure fitting from the rear , behind this is the pressure regulating valve assembly. It was instantly obvious from the corrosion that the valve was stuck> I freed it up with some hammering lol and removed / cleaned and reassembled and voila shes FIXED

As for the corrosion the only thing i can think of is moisture in the atmosphere when the pump has been sitting in the shed for a long period has caused the corrosion .

Thanks for the help too guys :-)
Thanks immortality for that link to the pdf that pump is close to identical so it helped with the construction of the pump
cheers

Originally Posted by dooda

Hey guys :-)
Finally fixed it lol . I removed the pump and removed the outlet high pressure fitting from the rear , behind this is the pressure regulating valve assembly. It was instantly obvious from the corrosion that the valve was stuck> I freed it up with some hammering lol and removed / cleaned and reassembled and voila shes FIXED
.

LOL, I once assembled that valve backward and basically had the same problem, no pressure.

Good to hear it's sorted

lol that would have sucked :-P

Cheers again for your help mate :-)