Rocker Arm Assembly: Service and Repair

Fig. 2 Rocker Arm Identification:

Fig. 3 Rocker Arm And Shaft Assembly Installed:

REMOVAL

1. Disconnect spark plug wires, then remove closed ventilation system and evaporation control system from cylinder head cover.
2. Remove cylinder head cover and gasket, then rocker shaft bolts and retainers.
3. Remove rocker arm and shaft assembly.

INSTALLATION


If rocker arm assemblies are disassembled refer to Fig. 2, for rocker arm identification and Fig. 3,
for positioning on shaft.
1. Install rocker shaft assemblies with notch on end facing inward toward the center of the engine and toward front of engine on the left bank and to the rear on the right bank, make sure to install long stamped steel retainers in the number two and four positions, Fig. 3. The rocker arm shafts should be torqued down slowly to specifications, starting with the center most bolts. Allow 20 minutes tappet bleed down time, after installation of the rocker shafts, before engine operation.
2. Install cylinder head cover and torque to specifications.
3. Install closed crankcase ventilation system and evaporation control system.