Valve Clearance: Service and Repair

STANDARD PROCEDURE - MEASURING VALVE LASH





1. Remove engine cover.
2. Remove cylinder head coverCylinder Head Cover - Removal.




3. Rotate camshaft so lobes are vertical (1).
4. Check clearance using feeler gauges.
5. Repeat for all tappets and record readings.
6. If clearance was too small, go to the clearance to small procedure.
7. If clearance was too large, go to the clearance to large procedure.
Clearance to Small





1. Remove camshaftsCamshaft - Removal.
2. Specification - clearance = change
3. Decrease bucket thickness by change figure.
4. Install camshafts Camshaft - Installation.
5. Verify that valve lash is correct.

Clearance to Large





1. Remove camshaftsCamshaft - Removal.
2. Clearance - specification = change.
3. Increase bucket thickness by change figure.
4. Install camshaftsCamshaft - Installation.
5. Verify that valve lash is correct.