General Procedures
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- Make sure that the following stages are followed exactly. The tappets or followers must be removed to carry out this measurement.
- Make sure that the camshaft is to specification.
- 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.
- Install the camshaft bearing caps.
- Follow the relevant tightening sequence.
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Remove the camshaft bearing caps.
- Follow the relevant loosening sequence.
NOTE:
NOTE:
Do not strike the bearing caps.
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.