Diesel Data: Automotive Repair

Rocker Arm Assembly: Service and Repair

Fig. 6 Rocker arm and shaft assembly installed. V8-318:





V8-318
To provide correct lubrication for the rocker arms on these engines, the rocker shafts have a small notch machined at one end and these notches must always face inward toward the center of the engine when installed. In other words, the notched end must be toward the rear of the engine on the right bank, and to the front of the engine on the left bank.

Rocker arms must be correctly positioned on the shaft prior to installation on cylinder head, Fig. 6.

It is also important when installing the rocker shaft assembly on the cylinder head to position the short retainers at each end and in the center, and to place long retainers in the two remaining positions.