Cummins/Onan — Prime the Turbocharger
Maintenance
From a Cummins/Onan owner's manual covering: 6CTA8.3, CFP83-F10, CFP83-F20, CFP83-F30, CFP83-F40. Check it applies to your exact model before use.
Applies to: Cummins/Onan 6CTA8.3, Cummins/Onan CFP83-F10, Cummins/Onan CFP83-F20, Cummins/Onan CFP83-F30, Cummins/Onan CFP83-F40, Cummins/Onan 6CTA8.3G2 engine, Cummins/Onan 6CTAA8.3G3 engine
Before you start
- New turbochargers must be pre-lubricated before startup. Failure to pre-lube the turbochargers will result in turbocharger bearing failure.
Procedure
- Remove the air intake filter assembly.
- Remove the turbocharger oil inlet line from the turbocharger bearing housing.
- Lubricate the bearings by pouring 59 to 89 ml [2 to 3 oz] of clean engine lubricating oil into the turbocharger oil supply line fitting.
- Tighten the oil supply line. Torque: 24 N•m [18 ft-lb].
- Install the air intake filter assembly.
Specs & values
- Torque the oil supply line to 24 N•m [18 ft-lb]
- Add 59 to 89 ml [2 to 3 oz] of clean engine oil
Full service-parts list: Cummins/Onan CFP83-F10 →, Cummins/Onan CFP83-F20 →, Cummins/Onan CFP83-F30 →, Cummins/Onan CFP83-F40 →
Source: Cummins/Onan owner'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.