Q: What should be done before removing the master cylinder bench bleeding?
A:
You will need to Secure the mounting flange of the brake master cylinder in a bench vise so that the rear of the primary piston is accessible.
By Bob
GM Specialist
28/10/2022
Q: What should be done if the brake pedal feels spongy?
A:
You will need to inspect the brake system for external leaks and remove any air that may have been trapped in the BPMV.
By Bob
GM Specialist
28/10/2022
Q: What pressure should be charged to the J 29532, or equivalent, air tank?
A:
You will need to charge the J 29532, or equivalent, air tank to 175-205 kPa (25-30 psi).
By Bob
GM Specialist
28/10/2022
Q: What's the recommended type of brake fluid that can be added to the brake master cylinder reservoir?
A:
The recommended type of brake fluid is Delco Supreme 11 (R), GM P/N 12377967 (Canadian P/N 992667), or equivalent DOT-3 brake fluid from a clean, sealed brake fluid container.
By Bob
GM Specialist
28/10/2022
FAQ for Other Repair Info
Q: What's the recommended torque for the master cylinder mounting nuts?
A:
The recommended torque is 29 N.m (21 ft. lbs.).
Q: What's the required torque for the brake pipe fittings at the master cylinder?