2026-10-08 · 5 min read
Mitsubishi ASX Rocker Cover Gasket Replacement Malaysia
The rocker cover gasket (valve cover gasket) on the Mitsubishi ASX 4B10 engine is a common oil leak source on vehicles with higher mileage, typically showing signs of seeping at 80,000–120,000 km. The gasket seals the top of the engine and deteriorates with age and heat cycles. Symptoms include a burning oil smell, visible oil seeping around the top of the engine, and oil contamination on spark plug wells. Replacement is a routine workshop job and the gasket itself is an inexpensive part.
ASX Valve Cover (Rocker) Gasket
- Valve cover gasket seepage is common after 80,000 km — oil smell from engine bay is a tell-tale sign
- Small seepage is not emergency but left untreated it drips onto hot exhaust creating smoke and fire risk
- Replacement cost is moderate — gasket is inexpensive, labour to remove cam cover is the main cost