Cummins/Onan — Pinion Clearance Adjustment
Adjustments · Starter pinion
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan MCCK
Procedure
- Adjust pinion clearance by increasing or decreasing fiber washer thickness at mounting surface of shift solenoid.
- More washers decrease clearance; less washers increase pinion clearance.
- Clearance between pinion and housing should be 0.02 to 0.08 inch (0.5 to 2 mm) when pinion is in cranking position.
Specs & values
- Pinion clearance: 0.02 to 0.08 inch (0.5 to 2 mm) in cranking position
Full service-parts list: Cummins/Onan MCCK →
Source: Cummins/Onan service 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.