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Moderator
Join Date: Apr 2000
Location: Auckland, New Zealand
Posts: 5,111
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"I am perplexed however about the pedal travel. I have the rear venting adjustment up tight, and have adjusted the actuater rod longer and longer. In order to get reliable release of the brakes after hard use( ie no binding or locking up) the actuating rod must be set so that the pedal moves about two inches before calipers start to work, then firm and normal from there. "
I had exactly this symptom on my 911 - as weird as it sounds, there needed to be massive freeplay between the actuating rod and the m/c before the m/c would "release". It makes absolutely no sense but is true. It meant the first 2 inches of brake travel was required to take up the slack. Then it worked fine.
I had the m/c rebuilt and it is perfect now (if I lived in the US I would have bought a new one for $109).
Cam
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1975 911S (in bits)
1969 911T (goes, but need fettling)
1973 BMW 2002tii (in bits, now with turbo)
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