| Condition | Action |
|---|---|
| Worn valve guides | Inspect the valves and valve guides. Repair or replace all damaged components. |
| Worn valve stem oil seals | Inspect the valve stem oil seals. Repair or replace all damaged components. |
| Excessive piston-to-cylinder bore clearance | Perform compression tests to determine the cause. Inspect the piston rings for low ring tension, broken or worn rings. Inspect cylinder bore. Repair or replace all damaged components. |
Base Engine Misfire with Excessive Oil Consumption