Brake Disc (Rotor)
Removal & Installation
CAUTION
Dust and dirt accumulating on brake parts during normal use may contain asbestos fibers from production or aftermarket brake linings. Breathing excessive concentrations of asbestos fibers can cause serious bodily harm. Exercise care when servicing brake parts. Do not sand or grind brake lining unless equipment used is designed to contain the dust residue. Do not clean brake parts with compressed air or by dry brushing. Cleaning should be done by dampening the brake components with a fine mist of water, then wiping the brake components clean with a dampened cloth. Dispose of cloth and all residue containing asbestos fibers in an impermeable container with the appropriate label. Follow practices prescribed by the Occupational Safety and Health Administration (OSHA) and the Environmental Protection Agency (EPA) for the handling, processing, and disposing of dust or debris that may contain asbestos fibers.
- Use a siphon or clean turkey baster to remove about half of the brake fluid from the master cylinder.
- Raise and safely support the vehicle and remove the tire/wheel assembly.
- Remove the caliper mounting bolts, then lift the caliper assembly away from the brake rotor.
- Use a suitable piece of wire to suspend the caliper assembly. This will prevent the weight of the caliper from being supported by the brake flex hose which will damage the hose.
- Once the caliper body and brake pads are removed, unfasten the caliper bracket mounting bolts, then remove the bracket from the rotor.
- Remove the rotor retaining screws.
- Remove the brake rotor by pulling it straight off the wheel mounting studs or if seized in place, remove the stubborn brake rotor by threading in two 8 x 1.25mm bolts, two turns at a time until the brake rotor is released.
To install:
- If necessary, completely retract the piston into the caliper using a large C-clamp or other suitable tool as provided in the front disc brake pad replacement procedures in this section.
- Install the brake rotor onto the wheel hub and tighten the mounting screws.
- Install the caliper mounting bracket and secure with the retaining bolts.
- Install the caliper and pad assembly over the brake rotor and mounting bracket and install the mounting bolts.
- Fill the master cylinder to the proper level with fresh brake fluid.
- Install the tire/wheel assembly and lower the vehicle.
- Pump the brake pedal until the brake pads are seated and a firm pedal is achieved before attempting to move the vehicle.CAUTIONDo not move the vehicle until a firm pedal is obtained.
- Road test the vehicle to check for proper brake operation.
Brake Pads
- Raise and support the vehicle safely.
- Remove the front wheels.
- Remove a small amount of brake fluid from the reservoir using a suction pump.
- Unbolt the brake hose clamp from the knuckle by removing the retaining bolts.
- Remove the lower caliper retaining bolt and pivot the caliper upward, off of the pads.
- Remove the pad shim and pad retainers. Remove the disc brake pads from the caliper.
To install:
- Clean the caliper thoroughly; remove any rust from the lip of the disc or rotor. Check the brake rotor for grooves or cracks. If any heavy scoring is present, the rotor must be replaced.
- Install the pad retainers. Apply molybdenum brake grease to both surfaces of the shims and the back of the disc brake pads.
- Install the pads and shims. The pad with the wear indicator goes in the inboard position.
- Push in the caliper piston so the caliper will fit over the pads. This is most easily accomplished with a pad spreader or large C-clamp.
- Pivot the caliper down into position and tighten the mounting bolt.
- Connect the brake hose to the knuckle, if removed.
- Install the wheel and lower the vehicle to the ground.
- Add brake fluid to the master cylinder reservoir and install the cap.
- Depress the brake pedal several times and make sure that the movement feels normal. The first brake pedal application may result in a very long pedal action due to the pistons being retracted. Always make several brake applications before starting the vehicle. Bleed the system if necessary.
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Brake Calipers
- Remove some fluid from the reservoir with a suction pump.
- Raise and safely support the vehicle.
- Remove the front wheels.
- Remove the banjo bolt and disconnect the brake hose from the caliper. Plug the hose to prevent fluid loss and contamination.
- Remove the mounting bolts and remove the caliper from its mounting bracket.
To install:
- Fit the caliper over the pads and onto its mounting bracket.
- Torque both caliper bolts to 27 ft. lbs. (36 Nm).
- Reconnect the brake hose to the caliper using new sealing washers. Carefully torque the banjo bolt to 25 ft. lbs. (35 Nm).
- Fill the reservoir with fluid and bleed the brakes.
- Install the front wheels and lower the vehicle.
Brake Caliper
Brake Pads
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