Front

DISC ROTOR INSPECTION
Visual Inspection
Check surfaces of disc rotor for uneven wear, cracks, and serious damage. If a malfunction is detected, replace applicable part.

Runout Inspection
1. Using wheel nuts, secure disc rotor to wheels hub. (2 or more positions)





2. Using a dial indicator, check runout.
Measurement point: At a point 10.0 mm (0.394 inch) from outer edge of disc
Runout limit (with it attached to the vehicle): 0.035 mm (0.0014 inch) or less

NOTE: Make sure that wheel bearing axial end play is with in the specification before measuring runout.

3. If runout is outside limit, find the minimum runout point by shifting the mounting positions of disc rotor and wheel hub by one hole.

Thickness Inspection





1. Using a micrometer, check thickness of disc rotor. If thickness is outside standard, replace disc rotor.
Standard thickness: 28.0 mm (1.10 inch)
Repair limit thickness: 26.0 mm (1.02 inch)
Maximum uneven wear (measured at 8 positions): 0.015 mm (0.0006 inch) or less
2. If runout is still out of specification, grind rotor with on-car brake lathe ("MAD, DL-8700", "AMMCO 700 and 705" or equivalent) until runout becomes within the specified limit.