Yanmar — Oil Pan and Gear Case Removal
A Yanmar service procedure — check it applies to your exact model before use.
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Before you start
- Carefully protect oil seal from damage when removing the gear case
Procedure
- Remove oil pan mounting bolt under gearcase.
- Remove gear case mounting bolt.
- Remove gear case.
- Never fail to remove stiffener bolt at the center of the gear case.
- Extract crankshaft V-pulley using a puller by hitting the bolt of the puller using a plastic hammer.
Tools required
- Puller
Source: manual:TNE-Series_ServiceManual_2TNE68-4TNE84_EN.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.