S-Type (X200) V6-3.0L (2000)
Camshaft: Testing and Inspection
Camshaft Journal-Clearance
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.
Insert the camshaft, without lubrication, into the cylinder head.
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.
Tightening sequence for the 3.0L engine.
Tightening sequence for the 4.0L engine.
3. NOTE: Do not strike the bearing caps.
Remove the camshaft bearing caps.
Loosening sequence for the 3.0L engine.
Loosening sequence for the 4.0L engine.
4. Using the special tool, read off the measurement.
Compare the width of plastigage with the plastigage scale.
The value that is read off is the bearing clearance.
If the values are not to specification install a new camshaft.