Kohler — 21, Remove oil fitter adapter.
A Kohler service procedure — check it applies to your exact model before use.
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Procedure
- 22. Split the crankcase.
- 23. Remove camshaft and tappets.
- 24, Remove crankshaft, front oil seal, and bearings.
Source: manual:Magnum_M18_and_M20_Service_Manual.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.