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Home›Repair guides›Service - Piston and Ring Replacement

Kohler K361 — Service - Piston and Ring Replacement

For the Kohler K361.

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Before you start

  • Never reuse old rings. Cylinder bore must be deglazed before service ring sets are used.

Procedure

  1. If the cylinder block does not need reboring and if the old piston is within wear limits and free of score or scuff marks, it may be reused. Never reuse old rings.
  2. Remove old rings and clean up grooves.
  3. Before installing new rings on piston, place top two rings each in turn in its running area in cylinder bore and check end clearance.
  4. Rings must be installed according to markings on rings. Compression rings must be installed with groove or bevel up when this is on inside diameter of ring. The chrome ring, when used, must be installed in the top groove.
  5. When bevel is on outside of ring, install in down position or toward skirt. Follow ring installation instructions carefully.
  6. Use ring expander to install rings and check side clearance of each ring after installation.

Tools required

  • Ring expander

Specs & torque values

  • Ring end clearance: .010/.020" (new bore), .030" (used bore max)
  • Service ring sets (standard, +.010", +.020", +.030" oversize)

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.