B3 Coupe Quattro PS Pump, rebuild??

[Joshua Van Tol]

Javed,

I think you'll have to remove the pistons from the high pressure pump, 
otherwise it'll try to pump fluid against a blockage. As for the 
groaning, you could try taking it apart, and see what sort of 
mechanical damage it has, but you're probably better off with a ZF 
rebuilt. If you decide to rebuild it yourself, be sure to check the 
flatness of the pump halves. Apparently they can get warped, and then 
they leak regardless of whether the o-rings are good.


On Feb 9, 2004, at 11:35 AM, JShadzi at aol.com wrote:

> Hey all, what's the best option here, I've priced out rebuilt units 
> for about $350, the pump I have groans really badly, are there any 
> more affordable options?  Would a simple seal-rebuild fix the groaning 
> problem?
>
> Also, anyone see any negative consequences from plugging the 3rd port 
> on the pump, the one that goes to the bomb and brake assist 
> hydraulics?  This pump will be going on my 80tq with vacuum assisted 
> brakes.
>
> TIA!
> Javad
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