Hydraulic Pump Rebuild

Phil Rose pjrose at frontiernet.net
Mon Jun 9 20:08:54 EDT 2003

At 2:33 PM -0700 6/9/03, Derek Pulvino wrote:
>True that on what I received as well; aka no new caps.
>So, got the caps off (care of cold chisel and hammer ala Bernie
>Benz), and the pump split open, now can anybody provide some info on
>how to get the drive-shaft portion out of the body?  You know, the
>part that attaches to the pulley.  Kit included a new shaft seal for
>that portion, and I'd like to replace that as well.

I tried to remove the pulley when I first rebuilt my pump (5 yrs ago)
but used a cheap puller which failed, and so I left it alone. My
philosophy was: QWYA (Quit While You're Ahead). During the
more-recent (#2) rebuild  I didn't even _try_ to replace the pulley
seal. It still wasn't leaking, so I decided not to fix it if it
wasn't...whoops!  The same philosophy of "benign neglect" was applied
to the internal o-rings, although I did change them first time around.

Another difficulty can be getting at the check valve seals. Some have
no trouble getting them out; others have a devil of a time loosening
those tiny Allen screws. Mine, fortunately, weren't leaking and so
they still haven't been replaced in either of the rebuilds.


>Also figured out that new o-rings for the external pentosin unions
>are not included with the kit.  Looks like time for 1-800 University
>Derek P
>>At 08:50 PM 06/09/2003 +0200, Richard Tanimura wrote:
>>>Here is my BTDT. My local wrench taught me this. I replaced all the plugs
>>>and O-ring using a large screwdriver. It was easy and I didn't have to buy
>>>any special drag link tools either. Remember, you don't have to worry about
>>>destroying plugs because you get new plugs as part of the replacement kits
>>>(at least in Sweden you do).
>>New caps are not part of the seals kit available in the US.
>MSN 8 helps eliminate e-mail viruses. Get 2 months FREE*.


Phil Rose				Rochester, NY USA
'91 200q	(139K, Lago blue)
'91 200q   (64K, Tornado red)			mailto:pjrose at frontiernet.net

More information about the 200q20v mailing list