Rear Rotor Inspection Procedure
Measure the thickness of the rotor at 4 or more points around the circumference of the rotor at the same distance in form the edge of the rotor. A new rotor is 10.4 mm (0.95 in) thick. Discard the rotor if the thickness is 8 mm (0.31 in) or less.
Rotor thickness that varies by more than 0.01 mm (0.0004 in) can cause brake pedal pulsation and/or rear brake vibration during brake applications. A rotor that does not meet these specifications should be refinished to specifications or replaced.
Using a commercially available dial indicator, measure the lateral runout of the rear brake rotor as follows:
- Position the shift lever in NEUTRAL.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
- To preserve the wheel balance, mark the relative positions of the wheel and the hub.
- Remove the rear tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
- Remove the rotor. Refer to Rear Brake Rotor Replacement .
- Clean the rotor.
- Clean the hub.
- Verify the hub-to-rotor contact surfaces are smooth and free from burrs.
- Fasten the brake rotor to the wheel hub.
- Mount the dial indicator.
- Place the indicator tip approximately 10 mm (0.39 in) from the outer edge of brake rotor, perpendicular to the disc and under slight preload.
- Rotate the rotor and observe the indicator gage.
- Determine the lateral runout of the rotor.
Specification: The maximum allowable lateral runout of the rear installed on the vehicle is 0.08 mm (0.003 in).
- Remove the dial indicator.
- If necessary, refinish the rotor with precision equipment.
- Complete the installation of the rotor. Refer to Rear Brake Rotor Replacement .
- Align the marks that were made before the wheel removal, and install the rear tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
- Lower the vehicle.