Wheel Hub: Testing and Inspection

Checking Wheel Hub Runout
1. Remove the wheel, brake caliper and brake disc.
2. Make sure the hub is clean and free from impurities.
- Use the extension arm on the brake disc measuring tool to adjust its position so that gauge readings Will be taken outside the bolt holes.
- Only one dial gauge need be used.
3. Rotate the hub and check the runout (the mean of the maximum and minimum readings).
- If runout exceeds 0.05 mm the hub should be changed.

Important: The dial gauge will fluctuate about 0.03-0.05 mm at every bolt hole. This is perfectly normal.

4. Fit the brake disc, brake caliper and wheel.
- Tighten the wheel bolts, using a torque wrench.
- Tighten to: 120 Nm (89 ft lb)