1. Remove the O-ring (1) from the engine front cover.
2. Remove the oil pressure relief valve from the engine front cover.
3. Clean the engine front cover.
4. Clean the engine front cover mating surfaces.
5. Inspect the engine front cover mating surfaces for damage.
6. Inspect the engine front cover O-ring sealing surface for damage.
7. Inspect the crankshaft front oil seal bore for damage.
8. Replace the engine front cover if any damage is found.
9. Install the oil pressure relief valve with a new O-ring.
Tighten: Tighten the oil pressure relief valve to 39 N.m (29 lb ft).