Jaguar Workshop Service and Repair Manuals

Valve Clearance: Adjustments

Valve Clearance Adjustment 

1. Remove the camshafts. For additional information, refer to Camshaft, Lifters and Push Rods.
2. Use compressed air to remove the shims that require replacing.

-

Blow compressed air between the shim edge and bucket to dislodge the shim.

3. Use the following formula to calculate the required shim thickness.

-

Original shim thickness + measured clearance - desired clearance = required shim thickness.

4. Apply a light coat of engine oil to the replacement shim(s) and install.
5. Install the camshafts. For additional information, refer to Camshaft, Lifters and Push Rods.