BENDIX/DELCO-Moraine Dual Piston Master Cylinder: Description

Bendix and Delco-Moraine tandem dual piston master cylinders are single casting type with front and rear pistons and a separate reservoir and outlet for each piston. Rear piston is operated by push rod connected to brake pedal. Front piston is operated by rear piston. In a combination drum and disc brake system, reservoir which feeds disc brakes is larger to correspond with larger size of disc brake caliper cylinder. Disc brake outlet has no residual valve since disc brakes must not have any residual pressure. Master cylinder outlet which feeds drum brakes has a residual valve under tube seats. Failure in either front or rear system does not result in failure of entire system.