Tech QuestionPaul Rummage , Pendleton , SC, 1971 Plymouth Duster 340 My 1971 Plymouth Duster has 4 wheel power drum brakes. Between the power brake assembly and the tandem master cylinder there is an adjustable rod to transmit force from the brake pedal to the master cylinder (I assume) in the case of booster failure. My brakes work but do not have power assist. How is the rod adjusted to ensure this is not part of the non-power booster problem? Paul- In a nutshell, it is NOT the problem. This should not need adjustment for the life of the car (or booster!) The forward tip of the adjustable pushrod should have anything from 0.020" clearance to just barely zero to the M/cyl primary piston recess. If there's vacuum at the hose, the booster is shot. End of story. Rick
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