Joe:
It does indeed sound as though your booster is on the way out.
This is exactly how the booster on my Z-28 failed. Intermittent bouts
of extremely high pedal pressure, followed by a return to normal
operation. 'Course, it always crapped out when I wasn't expecting it,
which made some stops very exciting.
Fix it now, or you will become a bumper sticker on some big rig
the next time it dies unexpectedly. =:-o
Can't say what the black stuff is for certain. Normal wear on
your new seals?
Cheers,
Vance
-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net] On
Behalf Of Lizirbydavis@cs.com
Sent: Thursday, May 13, 2004 6:03 PM
To: 6pack@autox.team.net
Subject: Trash in the master cylinder
I rebuilt my entire brake system this spring (except for the booster).
I
bought a new master cylinder, new wheel cylinders, and filled the system
with
silicone fluid...the pink stuff. The car has been stopping
great...until today.
The pedal became very firm, and the car drifts to the right. When I
start
the car, the brake pedal doesn't "soften" as it should when boosted.
Apparently the booster has given up the ghost. I also noted that there
are lots of
flecks of black stuff in both chambers of the master cylinder. I
started the
car again this eve. and the pedal feel is normal again and the car
stops
straight. Any ideas about the intermittent nature of this problem?
And, what is
the black stuff?
Joe Davis
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