Rocker Arm

Fig. 3 Rocker Arm & Shaft Assembly:

Fig. 4 Rocker Arm & Shaft Identification:

Fig. 5 Rocker Arm Shaft Bolt Tightening Sequence:

1. Remove rocker arm cover.
2. Alternately and evenly loosen rocker shaft attaching bolts, then carefully lift rocker shaft assemblies from cylinder head.
3. Remove rocker arms and springs from rocker shaft. Do not remove hydraulic valve lash adjusters from rocker arms unless necessary.
4. Measure outside diameter of rocker shaft and inside diameter of rocker arm shaft bore. The maximum difference between these two measurements should not exceed .0039 inch. Also check hydraulic valve lash adjuster for wear and damage and replace as necessary.
5. Pour engine oil into rocker reservoir.
6. If removed, apply engine oil to hydraulic valve lash adjuster and install in rocker arm. Use care not damage O-ring when installing.
7. Assemble rocker arms and springs to rocket shaft, Fig. 3. Rocker arms and shafts can be identified as shown in Fig. 4.
8. Install assembled rocker shaft assemblies, with oil holes facing down, to cylinder head and torque attaching bolts alternately and evenly in sequence shown in Fig. 5.