[urq] Stopping Power: 100%- 50%- 10%- FOLLOW UP
brogers at terrix.com
Tue Apr 19 11:02:45 EDT 2005
I still think it is your master cylinder or a air bubble in the system....
Do you use rubber brake lines - how old are they? I understand after
several years they can get more flexible and expand when you press the brake
pedal (causing mushy pedal)....
----- Original Message -----
From: "Maurits Jonkergouw" <urq at moregraphics.nl>
To: "Audifans" <urq at audifans.com>
Sent: Monday, April 18, 2005 4:35 PM
Subject: [urq] Stopping Power: 100%- 50%- 10%- FOLLOW UP
Hey guys, remember my brake problem last week? Well, I changed the bomb and
filled the PS reservoir with new ATF Dexron II. Ran engine a few minutes and
bled the system (by locking the wheels from left to right 5 times -wheels
off ground- and topped it off to maximum). Ran engine for 5 minutes again
but the pedal is still soft. As a matter of fact it's feels exactly the same
like before (no brake feel).
When I turn off the engine and push it 8-10 times, it gets harder but never
really hard, like a faulty bomb, even after +25 times, at this point the
pedal feels quit normal, like it used to, only key difference is the engine
is now off. When I restart engine, the pedal becomes soft and mushy again,
just like before... :-(
When I quickly "slap" the pedal numerous times (while engine running)
without pushing it all the way to the floor, I feel counter pressure does
come back, if I then push harder, I'll step right thru it, straight to the
bottom again, making this prrrrrtwhooooosch sound, like the sound of a wet
fart or baby shitting his/her diper.
I'm no expert on brakes and hydraulics, but something tells me is seriously
wrong. All I do know there are several possibilties left:
Hydraulic pump (but sounds good to me);
Master Cylinder (already bought rebuild kit);
Servo leakdown (saw no red puddles yet);
Pressure regulator (sweating at lower warning switch);
Pressure acumulator aka the bomb (fixed that).
Brake bleeding will be the next step, but perhaps it's already obvious
Thanks again and again and again. Getting little anxious what might to
1986 GV (Swiss WR)
1985 CGT KV
1982 GL DD
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