Re: 88 5K Hydraulic Pump (Brakes and Steering)

["Fred Munro" <munrof@isys.ca>]

-----Original Message-----
From: Christopher Ritchie <cjr1@gte.net>
To: quattro@coimbra.ans.net <quattro@coimbra.ans.net>
Date: Saturday, December 05, 1998 7:04 PM
Subject: 88 5K Hydraulic Pump (Brakes and Steering)


>I seem to be losing Pentosin.  Recently replaced the "bomb."  I do not
>believe that I was losing fluid before the "bomb" was replaced.  It is not
>leaking at the "bomb."  It is not leaking at any of the lines.  I think
>(but am not 100% sure) that it is not leaking at the steering rack.  It is
>not leaking at the top and at the 3 fittings on the pump.  The underside of
>the pump, though, is wet with Pentosin.  The engine area underneath the
>pump is wet also.  It seems to leak more rapidly when I stress the
>steering.  That is, when I turn the wheel quickly (such as in parking),
>especially if the front tires are low in air pressure.  (Both front tires
>have slow leaks.  I usually keep them pumped up, but sometimes it will get
>ahead of me.)  If I turn the steering wheel rapidly at a stop or low speed,
>I can "beat" the power assist sometimes.  Anybody have any experience with
>this?  Is the pump on the way out?  Did the old "bomb" mask weakness in the
>pump?
>

Christopher;

    Check the joint where the two pump halves meet for leakage. This is
fairly common on the older pumps. The rear part of the pump is attached to
the front with two allen head bolts - check these for torque (26 ft.lb.) as
they tend to loosen off.
    The new bomb will be holding higher pressure on your system than the old
one did and this may be causing your leakage.

HTH

Fred Munro
'91 200q  263k km