Depending on the type of crankcase breather system, two types of rocker lever covers are used.
1 Rocker Lever Cover Crankcase Breather – An internal system which is part of the rocker lever cover assembly.
2 Rear Engine Mounted Crankcase Breather – An external system which is mounted at the rear of the engine, above the flywheel housing. The rocker lever cover vents the crankcase gases to the external system through a connection at the rear of the engine.
Engines with a rocker lever cover mounted crankcase breather assembly use a rocker lever cover gasket with an
integral wiring harness for the injectors. The wiring and connectors are molded into the gasket. The gasket
assembly consists of:
1 Injector terminal mounting fasteners
2 Rocker lever cover gasket
3 Two engine wiring harness connectors.
The gasket is reusable and must only be replaced if damaged or leaking.
Engines with a rear engine mounted crankcase breather use a rubber molded gasket that is pressed into a groove
in the rocker lever cover.
The gasket is reusable, but once the gasket is removed from the rocker lever cover, it must be replaced.
The injector wiring is routed through the rocker lever housing.
