Camshaft Bearing Journal Clearance

Camshaft Journal Clearance

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.





1. 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. Following the tightening specification, install the camshaft bearing caps.

3. NOTE: Do not strike the bearing caps.

Remove the camshaft bearing caps.





4. Using the Plastigage, read off the measurement.
- Compare the length of plastigage with the plastigage scale.
- The value that is read off is the bearing clearance.