Front

DISC ROTOR INSPECTION

Visual Inspection
Check surfaces of disc rotor for uneven wear, cracks, and serious damage. Replace applicable part as necessary.

Runout Inspection
1. Secure disc rotor to wheels hub 2 or more positions, using wheel nuts.





2. Using a dial indicator, check runout.

CAUTION:
Make sure that wheel bearing axial end play is within the specifications before measuring runout. Refer to FAX-5 "On-Vehicle Inspection and Service".

Runout limit: Refer to BR-39, "Front Disc Brake". Front Disc Brake

3. If runout is outside the 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 the standard, replace disc rotor. Refer to BR-39, "Front Disc Brake". Front Disc Brake
2. If runout is still out of the specification, grind rotor with on-car brake lathe ("MAD, DL-8700", "AMMCO 700 and 705" or equivalent) until runout becomes within the specified limit.