Crankcase Cover

Choosing A Motorcycle Or ATV Clutch Cover

A clutch crankcase cover is an outer engine housing around the clutch area. The right-side covers in this selection are intended for specific motorcycle or ATV engines. Match the engine application, mounting pattern and openings; two machines with similar engine displacement do not necessarily use the same housing.

The outer cover is separate from the clutch friction plates and pressure plate inside. Some engine designs also use a smaller clutch cover in addition to a larger right crankcase cover, so identify the housing that is actually damaged.

Crankcase Cover Damage And Oil Leaks

A scrape on the outside is different from a crack through the housing or damage at the mating edge. Inspect the area for fluid loss and distortion, and check for damage behind the cover after an impact. Oil appearing near the joint can also come from a seal or another location.

The mating surface and threads must be in suitable condition for the replacement to seat correctly. Tightening the bolts harder cannot compensate for a distorted surface or a cover that is not aligned.

Gaskets And Openings On An Engine Clutch Cover

Depending on the engine design, the cover can have locating points, shaft openings and seals in addition to its perimeter joint. Compare those features with the engine being repaired and identify the required gasket, O-rings and fasteners before opening the housing.

A cover package should not be assumed to include every seal or mounting bolt. The engine's service information and the individual package description determine which parts are needed.

Frequently Asked Questions (FAQ)