FAQ for Brake Master Cylinder Repair
Q: What lubrications can I use to lubricate the components?
A:
You can use Delco Supreme 11 GM P/N 12377967, Canadian P/N 992667, or equivalent DOT-3 brake fluid from a clean, sealed brake fluid container.
By BobGM Specialist
01/11/2022 Q: What should I use to lubricate the components?
A:
You need to lubricate them with Delco, Supreme 11, GM P/N 12377967 (Canadian P/N 992667), or equivalent DOT-3 brake fluid from a clean, sealed brake fluid container.
By BobGM Specialist
01/11/2022 Q: How to remove the Brake Master Cylinder Reservoir?
A:
You need to remove the master cylinder from the vehicle and secure the master cylinder in a vise. Then you need to carefully remove the brake master cylinder reservoir retaining pins. After that, you can remove the reservoir from the master cylinder by pulling the reservoir straight up and away from the cylinder. Finally, you need to remove the seals from the master cylinder.
By BobGM Specialist
01/11/2022 Q: What should I notice when adding fluid to the brake master cylinder reservoir?
A:
You need to notice that you use only Delco Supreme 11, GM P/N 12377967 (Canadian P/N 992667), or equivalent DOT-3 brake fluid from a clean, sealed brake fluid container.
By BobGM Specialist
01/11/2022 Q: When should I replace the master cylinder?
A:
If any cracks, scoring, pitting, and/or corrosion exist, you need to replace them.
By BobGM Specialist
01/11/2022 Q: What is the recommended torque for the brake pipes to the master cylinder?
A:
It is 30 Nm (22 ft. lbs.).
By BobGM Specialist
01/11/2022 Q: What is the recommended torque for the master cylinder bolts and nuts?
A:
It is 36 Nm (27 ft. lbs.).
By BobGM Specialist
01/11/2022 Q: How deep should I depress the primary piston?
A:
You should depress and release the primary piston, with a smooth, round-ended tool, as far as it will travel, a depth of about 25 mm (1 lb.), several times.
By BobGM Specialist
01/11/2022 Q: How to remove the Brake Master Cylinder?
A:
You need to apply the parking brake and block the wheels and disconnect the brake pipes from the master cylinder. Then you need to plug the open brake pipe ends and remove the master cylinder nuts and bolts. After that, you can remove the master cylinder from the vehicle and drain the master cylinder reservoir of all the brake fluid.
By BobGM Specialist
01/11/2022 Q: What should I do if the brake fluid is to be added to the master cylinder reservoir?
A:
You need to clean the outside of the reservoir on and around the reservoir cap before removing the cap and diaphragm, then use recommended fluid to fill the reservoir.
By BobGM Specialist
01/11/2022 See more FAQs (9)