Valve Clearance Check (12.29.47)
1. Remove the left-hand valve cover.
2. Remove the right-hand valve cover.
3.
CAUTION: Rotating the crankshaft in a counterclockwise direction may cause
engine damage. Crankshaft journals are directionally machined. Rotating the
crankshaft counterclockwise can raise burrs on bearing surfaces, reducing engine life.
CAUTION: Camshaft lobes must be 180 degrees away from each valve tappet or
the valve clearance will be incorrect.
Rotate the engine clockwise to position the camshaft lobe away from the shim surface.
4. Using the feeler gauge set, measure the clearance between the camshaft and the shim
surface. Record and check the readings. Adjust the clearances as necessary.
Valve Clearance Check (12.29.47)
5. Install the right-hand valve cover.
6. Install the left-hand valve cover.