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Re: Hydraulic pumps
I rebuilt my ZF hydraulic pump with the factory rebuild kit. I was VERY
careful and followed the Bently manual AND the official Audi service bulletin
on this subject. I used a nice torque wrench and kept everything super clean.
It didn't work. Save the money and just get a rebuilt pump. Then flush the
hydraulic fluid once a year and clean the filter in the reservoir. Your
problems should dissappear forever..
...bill
DEC
Maynard, MA
>I have considered rebuilding the pump myself before. Doesn't seem too
>difficult looking at Bentley. But I have read here and been told by my
>trusted mechanic at the Audi dealer that rebuilding the pump is usually
>not very successful unless done by the manufacturer or professional
>rebuilders who do it all the time. If the rebuilding is not done right,
>the leaks start up again, especially considering the high pressures
>it is operating under. I have successfully rebuilt a GM (Cadillac)
>PS pump but I think the Audi pump is a very different beast altogether.
>
>Let us know how you make out if you attempt it.
>
>Zafer
>zm@mhcnet.att.com