Quote:
Originally Posted by p76rangie
Not necessarily. The pumping to bleed the brakes over the full stroke of the pedal can sometimes stuff up the master cylinder.
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That's a good point. Junk can accumulate in the back end of the MC over years , and not be a problem until the check valve is forced into it and, when the junk gets caught beneath the valve. He did, however say that it does build and hold pressure after succesive pumping, which would indicate that hasn't happened (yet).
