Standard Brakes

Brake Disc Run Out - Check

Special Service tools





Dial Test Indicator Gauge and Stand.

1. Raise front of vehicle and support on stands.

2. Remove wheel.

CAUTION: Tie caliper housing aside. Do not allow the caliper housing to hang on the hydraulic hose, as this will damage the hose.





3. Remove caliper housing from caliper carrier.
- Remove anti-raffle spring.
- Remove dust covers.
- Remove guide pins.
- Remove and tie caliper housing aside.

4. Make sure that wheel bearing end-float is correct.





5. Measure brake disc run-out.
- Install brake disc to hub and secure with all wheel nuts, tighten wheel nuts to 20 Nm in a diagonal sequence.
- Position the gauge so that the pointer contacts the disc, 10 mm from its outer edge.
- Slowly rotate the disc one revolution, the disc run-out must not exceed the specification.

6. If the brake disc run-out exceeds specification, reposition the brake disc on the hub and repeat the above procedure. Continue repositioning the brake disc until the run-out is within specification.

7. If the brake disc run-out still exceeds specification, check the hub face run-out.

8. Remove brake disc.





9. Measure hub face run-out.
- Position the gauge so that the pointer contacts the hub face.
- Slowly rotate the hub one revolution, the hub run-out must not exceed the specification. .
- If the hub exceeds the maximum run-out specification replace the hub.

NOTE: Make sure the brake disc and hub mating surfaces are clean.

10. If the hub run-out is within specification replace brake discs.





11. Install caliper housing to caliper carrier.
- Align housing to carrier.
- Install and tighten guide pins to 25 - 30 Nm.
- Install dust covers.
- Install anti-rattle spring.

12. Install wheel.