X-Type (X400) V6-3.0L (2002)
Camshaft: Testing and Inspection
Camshaft 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.
Camshaft Journal - Clearance
1. NOTE: Make sure that the following stages are followed exactly. The tappets or followers must be removed to carry out this measurement.
NOTE: Make sure that the camshaft is to specification.
NOTE: The bearing caps and journals should be free from engine oil and dirt.
Position on a length of plastigage on the bearing cap.
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Insert the camshaft, without lubrication, into the cylinder head,
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Position a plastigage strip, which should be equal to the width of the bearing cap, on the bearing journal.
2. Install the camshaft bearing caps.
3. NOTE: Do not strike the bearing caps.
Remove the camshaft bearing caps. For additional information, refer to Cylinder Head.