Cummins/Onan — Inspect 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
Procedure
- Remove the air intake and the exhaust piping.
- Look for damaged or cracked compressor or turbine blades.
- Check that the turbocharger shaft spins freely.
- If the compressor impeller is damaged, inspect the intake piping and filter element for damage.
- Replace the turbocharger if damage is found; contact a Cummins Authorized Repair Location.
- Install the air intake and the exhaust piping and tighten the clamps.
Specs & values
- Turbocharger axial clearance min 0.038 mm [0.0015 in], max 0.093 mm [0.0037 in]
- Radial bearing clearance min 0.30 mm [0.012 in], max 0.46 mm [0.018 in]
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.