Cummins/Onan P218 / P220 — Returning the Engine to Service
Maintenance
For the Cummins/Onan P218 / P220, from the Cummins/Onan operator's manual.
Applies to: Cummins/Onan P218, Cummins/Onan P220
Procedure
- Remove the cover, all protective wrapping, and the plug from the exhaust outlet.
- Check the tag on the oil base and change oil if viscosity is not appropriate for expected ambient temperatures.
- Check fuel filter and fuel lines for security, cracks and leaks.
- Check that choke, throttle and governor linkages move freely.
- If so equipped, clean and check the battery and connect battery cables (positive cable first).
- Start the engine; initial startup may be slow with smoke and rough operation until cylinder oil burns off.
- If the engine does not start, clean or replace spark plugs that may have been fouled by oil.
Full service-parts list: Cummins/Onan P218 →, Cummins/Onan P220 →
Source: Cummins/Onan operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.