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Kohler K361 — ACR Check (Automatic Compression Release)

Testing & diagnosis · Automatic compression release mechanism

For the Kohler K361, from the Kohler service manual.

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Procedure

  1. Remove the rocker arm housing cover and spark plug.
  2. Turn engine over by hand until bottom dead center of intake stroke (intake valve closing).
  3. Mount a dial indicator on top of the exhaust clearance adjusting screw.
  4. Position exhaust rocker arm so adjusting screw contacts exhaust push rod; zero the dial indicator.
  5. Slowly turn flywheel clockwise and watch dial indicator; push rod lift should be .051-.059.

Tools required

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

Specs & values

  • ACR push rod lift .051-.059 in.

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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