Front

DISC ROTOR INSPECTION

Visual Inspection
Check surface of disc rotor for uneven wear, cracks, and serious damage. If any of them is detected, replace applicable part.

Runout Inspection
1. Using wheel nuts, fix disc rotor to wheel hub. (two or more positions.)





2. Inspect runout using a dial gauge. [Measured at 10 mm (0.39 in) inside the disc edge.]
Runout limit (on vehicle): 0.05 mm (0.0020 in)

NOTE: Make sure that wheel bearing axial end play is within the specifications before measuring runout.

3. If runout is outside the limit, find the minimum runout point by shifting mating positions of disc rotor and wheel hub by one hole.
4. If runout still out of specification, turn rotor with on-car brake lathe.

Thickness Inspection





Using a micrometer, check thickness of disc rotor. If thickness is either at or below the wear limit, or exceeds maximum uneven wear, replace disc rotor.
Standard thickness: 28.0 mm (1.102 in)
Repair limit thickness: 26.0 mm (1.024 in)
Maximum uneven wear: 0.015 mm (0.0006 in) (Measured at 8 positions)