Section 3 - Rocker Levers - Group 03 Rocker Lever Assembly - Cleaning and Inspection for Reuse (3-01) M11 Page 3-7 Visually inspect the rocker lever shafts for pitting, scoring or other damage. Measure the outside diameter of the rocker lever shafts. Rocker Lever Shaft O.D. mm in 34.837 MIN 1.3715 34.864 MAX 1.3726 Refer to Overhead Reuse Guidelines, Bulletin No. 3810388, to identify wear patterns and excessive wear. If worn or damaged parts are found, or the rocker lever bushings or shafts are not within the specifications given, the rocker lever assemblies must be rebuilt. Refer to Rocker Lever Assembly - Rebuild (3-02).
Visually inspect the sockets in the injector rocker levers for wear or damage. Visually inspect the valve rocker lever pads for wear, cracks or other damage. If wear, cracks or other damage is found, the rocker lever must be replaced. Use crack detection kit, Part No. 3375432, to inspect the rocker lever shaft supports for cracks or damage. If cracks or damage is found, the rocker lever shaft sup- port must be replaced. Assembly Caution: Ensure that the rocker lever shafts are installed with the arrow on the end of the shafts pointed down- ward. Failure to do so will prevent oil from lubricating the rocker levers.
The rocker lever shafts are labeled front and rear on the end of the shafts (1). The arrow (2) on the end of the shaft must be pointed downward to ensure an oil flow to the rocker levers. The shaft end supports are not interchangeable.