Engine
Engine cases
The casing that holds the crankshaft, gearbox and engine oil.
How it works
The crankcase houses the bottom end (crankshaft, gearbox) and doubles as the oil reservoir. Its covers (ignition, clutch) are sealed with gaskets. Hardened gaskets seep oil; a leak at the drain plug is common after servicing.
Maintenance tips
- Retighten the drain plug to spec with a new washer.
- Replace any cover gaskets that are seeping.
Related symptoms
⚠️ The information on this page is provided for educational purposes to help you understand the role and operation of the part. It replaces neither a physical inspection nor the judgment of a certified mechanic. Before any work on a safety-critical component (braking, steering, transmission, suspension), have the part's condition confirmed by a professional.