Cummins/Onan — Cooling System (Cylinder Cooling Fins) Cleaning
Maintenance
From a Cummins/Onan operator's manual covering: P216, P218, P220, P224. Check it applies to your exact model before use.
Applies to: Cummins/Onan P216, Cummins/Onan P218, Cummins/Onan P220, Cummins/Onan Performer Series
Before you start
- Always wear safety glasses when using compressed air or a pressure washer to avoid severe eye damage
- Temperature stresses caused by cleaning a hot engine can crack the cylinder
Procedure
- Wear safety glasses.
- Let the engine cool, especially before using a pressure washer.
- Use compressed air or a pressure washer to clean the cylinder cooling fins.
- Observe all manufacturer instructions and precautions for the pressure washer.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan P216 →, Cummins/Onan P218 →, Cummins/Onan P220 →, Cummins/Onan Performer Series →
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.