Rocker Lever Cover Mounted Crankcase Breather Remove all protective caps. Install the closed crankcase ventilation hose(s). Secure the hose clamps. Install any fasteners that secure…

Inspect the crankcase ventilation hose(s) internally for obstructions or sludge buildup. Blockages must be removed to reduce the possibility of crankcase pressure buildup. If a…

Rocker Lever Cover Mounted Crankcase Breather Remove any fasteners securing the closed crankcase ventilation hose(s) to the engine. Remove the hose clamps. Remove the closed…

The closed crankcase ventilation hose connects the closed crankcase ventilation valve outlet to the air intake system. The connection point at the air intake system…

Rocker Lever Cover Mounted Crankcase Breather Insert the diaphragm into the crankcase ventilation filter cover cavity so the flat center circle of the diaphragm rests…

Rocker Lever Cover Mounted Crankcase Breather Clean the closed crankcase ventilation valve housing, spring and diaphragm in warm soapy water. Dry with compressed air. Inspect…

Rocker Lever Cover Mounted Crankcase Breather Remove the closed crankcase ventilation valve mounting capscrews. Remove the closed crankcase ventilation valve housing, spring and diaphragm. Rear…

If troubleshooting high crankcase pressure, the following items can cause the closed crankcase ventilation valve to close during engine operation: • High air intake restriction.…

The closed crankcase ventilation valve is used on engines in which the crankcase gases are vented back into the intake of the engine. The purpose…

Rocker Lever Cover Mounted Crankcase Breather If the gasket was removed, install the gasket into the rocker lever cover groove, starting with the tab end…