XJ (X308) V8-4.0L SC (2003)
5. Measure brake disc run-out.
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Install brake disc to hub and secure with all wheel nuts, tighten wheel nuts to 20 Nm in a diagonal sequence.
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Position the gauge so that the pointer contacts the disc 10 mm from its outer edge.
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Slowly rotate the disc one revolution, the disc run-out must not exceed the specification.
6. If the brake disc run-out exceeds specification, check the hub face run-out.
7. Remove brake discs.
8. Measure hub face run-out.
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Position the gauge so that the pointer contacts the hub face.
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Slowly rotate the hub one revolution, the hub run-out must not exceed the specification.
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If the hub exceeds the maximum run-out specification replace the hub.
9. NOTE: Make sure the brake disc and hub mating surfaces are clean.
If the hub run-out is within specification replace brake discs.