Cummins/Onan — Through Bolt and Rotor Removal
Repair & overhaul · rotor / stator
From a Cummins/Onan service manual covering: P3200i, P4300i, P4300ie, RG 3200 IS, RG 4300 IS, RG2800i. Check it applies to your exact model before use.
Applies to: Cummins/Onan P3200i, Cummins/Onan P4300ie, Subaru EX21 engine, Subaru EX27 engine
Before you start
- Rotor and stator are bound by strong magnetic force; do not get fingers pinched.
Procedure
- Remove the through bolt (M10 x 55mm); thread is reverse direction, turn clockwise to loosen.
- Using special tool Rotor Puller, remove the rear cover together with rotor and stator.
- If separation needed, use a hand-pressing machine to press the rotor shaft out of the bearing.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- M10 x 55mm Bolt: 1pce
Full service-parts list: Cummins/Onan P4300ie →
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.