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Reply to "Seeking ideas concerning what may be causing the rear brakes to drag and how to resolve the problem"

rocky posted:

, , , on the brake issue - that has me puzzled.  , , ,

 

that has me puzzled too.   Is there any check valves in the master cylinder?   I didn't "think" so.   I thought on pedal release the fluid in the lines is ported back to the resevoirs.

A far fetch fault I could imageine is thermal expainsion of the booster is "pressing" the master cylinder's pistons.   But the recomended clearance setting between to two at off pedal is 0.035".   just a gut evaluation, I would not expected more than 0.004" thermal growth could be possible.booster master adjustment

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