Kohler K361 — Reboring Cylinder - Honing

For the Kohler K361.

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Procedure

1. Remove the old oil seals from the block but do not install new seals until after the crankshaft is reinstalled.
2. Check all gasket surfaces to make sure they are free of gasket fragments. Gasket surfaces must also be free of deep scratches or nicks.
3. Determine cylinder bore wear with an inside micrometer, then select the nearest suitable oversize of either .010", .020" or .030".
4. Lower hone into bore and, after centering, adjust so that stones are in contact with walls. Use of a commercial cutting-cooling agent is recommended.
5. With the lower edge of each stone positioned even with the lowest edge of the bore, start drill and honing process. Move hone up and down while reboring to prevent formation of cutting ridges.
6. Check size frequently. When bore is within .0025 of desired size, remove coarse stones and replace with burnishing stones.
7. Continue with burnishing stones until within .0005 of desired size, then use finish stones (220-280) and polish to final size.
8. Verify that a cross-hatch should be observed at approximately 25°-30° intersection angle.
9. After reboring, carefully clean cylinder wall with soap and water, then after drying thoroughly, apply light coat of SAE 10 oil to prevent rust.

Source: manual:6906530_text.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.