INCORRECT ASSEMBLY 3

APPEARANCE

Blue spots, darker colour of some disc areas. Evidence of localised overheating

CAUSE

Excessive hub run-out. Uneven disc-to-pad contact generates excessive oscillation which in turn leads to localised heat generation – subsequently discolouration (blueing)

EFFECT

Progressively increasing noise and vibration

REMEDY

Correct the wheel hub run-out and ensure that this falls within the correct tolerances

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