Brake pressure accumulator leakdown

[four.rings@mcione.com]

quk@isham-research.demon.co.uk (Phil Payne) wrote:
 
When I leave the car for more than a few minutes, the brake
pressure
accumulator leaks down to the point where the engine has to run
for
quite a few seconds to turn out the brake warning light.

The bomb has been replaced (after my shunt) so the main/only
candidate
is the servo (# 857 612 107C).  Disconnecting the servo to
reservoir
return line at the reservoir end and placing it in a measuring
glass -
it drips steadily.

I had always thought this was a sign of a dead servo, and that
this was
probably the cause of my leakdown.  But the microfiche says not
to
worry about this line dripping.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Bentley sez the opposite.
When replacing the servo make sure you replace that square in
crossection rubber O-ring between the servo and the MC.


-- 
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Igor Kessel
'89 200TQ -- 18psi (TAP)
'98 A4TQ -- mostly stock
Philadelphia, PA
USA
http://www.geocities.com/MotorCity/Garage/8949/homepage.html
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