Brake Rotor/Disc: Testing and Inspection
ROTORSDIAGNOSIS AND TESTING - FRONT ROTOR LATERAL RUNOUT
Check rotor lateral runout whenever pedal pulsation, or rapid, uneven brake lining wear has occurred.
The rotor must be securely clamped to the hub to ensure an accurate runout measurement. Secure the rotor with a minimum of 3 lug nuts and large diameter flat washers on each stud.
Use a dial indicator to check lateral runout.
Maximum allowable rotor lateral runout is 0.05 mm (0.002 in.).
