Front
DISC ROTOR INSPECTIONVisual Inspection
Check surface of disc rotor for uneven wear, cracks, and serious damage. Replace if there are.
Runout Inspection
1. Fix disc rotor to wheel hub using wheel nuts (2 or more positions).
2. Inspect runout using a dial gauge. [Measured at 10 mm (0.39 inch) inside the disc edge.]
Runout limit: 0.035 mm (0.0014 inch) (with it attached to the vehicle)
NOTE: Before measuring, make sure that wheel bearing axial end play is within the specification.
3. When runout exceeds limit value, displace mounting positions of disc rotor by one hole. And then find a position of the minimum value for runout.
4. Replace or lathe disc rotor if runout is outside the specified value after performing the above operation. (MAD DL-8700, AMMCO 700 and 705 or equivalent.)
Thickness Inspection
Check thickness of the disc rotor using a micrometer. Replace disc rotor if thickness is under the wear limit.
Standard thickness: 28.0 mm (1.102 inch)
Wear limit: 26.0 mm (1.024 inch)
Thickness variation: 0.015 mm (0.0006 inch) (Measured at 8 positions)