Cummins/Onan — Removing Flywheel
Repair & overhaul
From a Cummins/Onan service manual covering: K1000, K1200, K1400, K1800, K2100, K2500, K3000, K3050, K3500, K400, K450, K800. Check it applies to your exact model before use.
Applies to: Cummins/Onan K1000, Cummins/Onan K450
Before you start
- Do not damage fins
Procedure
- Remove flywheel tightening nut
- Remove flywheel
- Remove woodruff key
Tools required
- air-cooled engine flywheel puller Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Flywheel tightening nut torque: GS130 29.4-44.1 Nm; GS280 63.7-73.5 Nm; GN550 19.6-24.5 Nm
Full service-parts list: Cummins/Onan K1000 →, Cummins/Onan K450 →
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.