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Cummins/Onan — DISASSEMBLY

A Cummins/Onan service procedure — check it applies to your exact model before use.

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Procedure

  1. 1. Lower hone into bore and after centering, adjust
  2. 2. With the lower edge of each stone positioned
  3. 3. When bore is within .0025” of desired size,
  4. 4. After resizing, check the bore for roundness,
  5. 5. Carefully clean cylinder wall with soap and hot

Source: manual:TP2043 Kohler Engine Service KT17 KT19 KT21 (05-1984).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.