XJ (X350) V8-4.2L (2005)
Camshaft: Testing and Inspection
Camshaft Bearing Journal Diameter
Camshaft Bearing Journal Diameter
1. Determine the diameter of the camshaft journals.
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Using a micrometer measure the diameter at 90 degrees intervals to determine if the journals are out-of-round.
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Measure at two different points on the journal to determine if there is any tapering.
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If the measurements are out of the specified range, install a new camshaft.