Valve Clearance: Testing and Inspection

Valve Clearance Check

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 valve clearance will be incorrect.
1 Disconnect the battery ground cable. For additional information, refer to Battery Disconnect and Connect Battery Disconnect and Connect
2 Remove the LH valve cover. For additional information, refer to Valve Cover LH Valve Cover LH
3 Remove the RH valve cover. For additional information, refer to Valve Cover RH Valve Cover RH
4
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 valve clearance will be incorrect.
Rotate the engine clockwise to position the camshaft lobe away from the valve tappet.




5 Using the feeler gauge set, measure the clearance between the camshaft and the valve shim.
6 Repeat the above procedure for the remaining 11 shims.
7 Adjust the clearance as necessary.
8 For cylinder head data, refer to specifications. For additional information, refer to Specifications [1][2]Mechanical Specifications
9 Install the RH valve cover. For additional information, refer to Valve Cover RH Valve Cover RH

10 Install the LH valve cover. For additional information, refer to Valve Cover LH Valve Cover LH

11 Reconnect the battery ground cable. For additional information, refer to Battery Disconnect and Connect Battery Disconnect and Connect