FAQ for Brake Disc Repair
Q: What is recommended according to General Motors Company (GM)?
A:
GM recommends the use of single-pass benches and on-car brake lathes.
By BobGM Specialist
01/11/2022 Q: What special tools will I be needing when servicing the rotor resurfacing kit and the wheel hub resurfacing kit?
A:
You will be needing a rotor resurfacing kit and the wheel hub resurfacing kit.
By BobGM Specialist
01/11/2022 Q: What is the removal procedure for the brake rotor?
A:
The procedure is to remove the tire and wheel assembly, the C-clamp, the brake caliper and the caliper mounting bracket, and the brake rotor.
By BobGM Specialist
01/11/2022 Q: What should you do whenever the brake rotor has been separated from the hub/axle flange?
A:
You should clean any rust or contaminants from the hub/axle flange and the brake rotor mating surfaces.
By BobGM Specialist
01/11/2022 Q: What information needs to be documented on the Repair Order?
A:
Any claim that is submitted using the labor operations in this bulletin, must have the Original Rotor Thickness and Refinish Rotor Thickness (if refinished) documented on the repair order.
By BobGM Specialist
01/11/2022 Q: What should be done whenever the disc brake rotors have been refinished or replaced, and/or whenever the disc brake pads have been replaced?
A:
You should select a smooth road with little or no traffic, accelerate the vehicle to 48 km/h (39 mph), apply the brakes to bring the vehicle to a stop, and repeat steps 2 and 3 until approximately 20 stops have been completed.
By BobGM Specialist
01/11/2022 Q: Is it okay to leave the caliper/pads installed while cutting rotors using an on-car lathe?
A:
No, on-car lathes should never be used with the pads and calipers installed on the vehicle.
By BobGM Specialist
01/11/2022 Q: What kind of special tool will I need when servicing the brake rotor?
A:
You will need a rotor resurfacing kit and a wheel hub resurfacing kit.
By BobGM Specialist
01/11/2022 Q: What is the installation procedure for the brake rotor?
A:
The procedure is to install the brake rotor and the tire and the wheel assembly.
By BobGM Specialist
01/11/2022 Q: When should the disc brake rotors be refinished?
A:
Thickness variation over the maximum allowable specification. excessive corrosion/rust and/or pitting. cracks and/or heat spots. excessive bluing discoloration. scoring of the disc brake rotor surface over the maximum allowable specification.
By BobGM Specialist
01/11/2022 See more FAQs (5)