re: Re: Central Hydraulic Pump - ...

[cordeiro@adi.com (Alan Cordeiro)]

>I found the reason for the leak and neither the Bently manual nor the service bulletins provided much
>detail my problem. The rear section of the pump has a round support for the main shaft that is 
>connected to the pulley. In the center of the rear support is also a pressure relief valve. 
>The round rear support is aluminum and screws into the aluminum rear housing of the pump.   
>My rear support had come unscrewed slightly so I removed it and found that there is  an O-ring 
>"behind" it as well as in front of it to seal  the high-pressure fluid from leaking into the area where 
>the two pump halves are joined together.

>I  replaced the O-ring, tightened the rear support  using the allen in the pressure relief valve and it 
>stopped leaking!  So far the pump is free from any leaks and works great. Rebuilding the pump "should 
>be" fairly straight-forward if you have worked on other power steering systems.
>Scott M.

The kit I got from PAP had ALL washers in it, as well as
the front shaft seal, and the bearings.

My bearings showed absolutely no play, so I left them.
However, I changed the front shaft seal, and EVERY O-RING,
even the one Scott talked about.

I glad to see someone else has been sucessful at a re-build.
Perhaps we can dispell the "cannnot be re-built by a
do-it-your-selfer" attitude.

Or it is possible we have been lucky, and our troubles are
just around the corner.


Alan Cordeiro