Cummins/Onan N52M — Remove Crank Gear
Repair & overhaul
For the Cummins/Onan N52M, from the Cummins/Onan service manual.
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Procedure
- Use gear puller No. 420-0072 and gear puller ring No. 420-0248 to remove crank gear.
- Remove pistons and oil pump.
- Mark each piston and rod assembly for respective cylinders.
- Keep connecting rod bearing caps and bearings with respective rods.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
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.