2026-10-08 · 5 min read
Mitsubishi Xpander Rocker Cover Gasket Malaysia
4A91 valve cover gasket seepage is common at 80,000+ km. The rubber gasket hardens with heat cycles, allowing oil to seep onto the exhaust and create a burning smell. Replacement is inexpensive and straightforward. Always replace the spark plug tube seals at the same time to prevent oil fouling the plugs. Clean off any exhaust deposits after replacement to eliminate residual smell.
Xpander Rocker Cover Gasket
- Common oil seep at 80,000 km+ — heat cycles harden the gasket
- Oil seeping down the side of the engine may reach exhaust — fire hazard
- Inexpensive repair — do not delay
- Apply Mitsubishi-spec sealant and torque cover bolts correctly