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Home›Repair guides›Kohler›Clean Cylinder Heads and Combustion Chambers

Kohler M18 / M20 — Clean Cylinder Heads and Combustion Chambers

Maintenance

For the Kohler M18 / M20, from the Kohler service manual.

Applies to: Kohler M18 / M20 engine

Procedure

  1. Remove cylinder head baffles and cylinder heads.
  2. Clean away combustion deposits using a wooden or plastic scraper.
  3. Reinstall cylinder heads using new gaskets.
  4. Torque fasteners in increments to 15/20 ft lb in the specified sequence.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

  • 500 hours (250 hours with leaded gasoline)
  • Torque 15/20 ft lb

Source: Kohler 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.

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