Rocker Arm Assembly: Service and Repair

REMOVAL
1 Remove Cylinder head cover(s).

CAUTION: Always rotate engine by turning the crankshaft. Failure to do so will result in valve and/or lifter damage.

2 Rotate engine until the cam lobe is on its base circle (heel), on the rocker arm being removed.

CAUTION: Depress valve spring only enough to remove rocker arm.





3 Using Special Tools 8215-A and 8216-A Adapter, depress valve spring only enough to release tension on rocker arm (Fig. 45).
4 Remove rocker arm from cylinder head.

CAUTION:if rocker arms are to be reused, identify position of rocker arms for reassembly in their original positions.

5 Repeat procedure for each rocker arm removed.
6 Inspect the rocker arm for damage.

INSPECTION





Inspect the cam follower assembly for wear or damage (Fig. 46). Replace as necessary.

INSTALLATION
1 Lubricate rocker arms with clean engine oil before installation.
2 Rotate engine until cam lobe is on its base circle (heel) of rocker arm being installed.
3 Using Special Tools 8215-A and 8216-A Adaptor, depress valve spring only enough to install rocker arm (Fig. 45).
4 Install rocker arm in original position (if reused) over valve and lash adjuster. Release tension on valve spring.

NOTE: Inspect rocker arm for proper engagement into lash adjuster and valve tip.

5 Repeat procedure for each rocker arm being installed.
6 Install cylinder head cover(s).