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Craftsman Marine CM4.33 / CM4.42 — Check-up of coolant level

Maintenance · Inner cooling circuit

For the Craftsman Marine CM4.33 / CM4.42, from the Craftsman Marine owner's manual.

Applies to: Craftsman Marine CM4.33, Craftsman Marine CM4.42, Mitsubishi CM4.33 engine, Mitsubishi CM4.42 engine

Before you start

  • Open the filler cap on top of the heat exchanger housing only when the engine is cold.

Procedure

  1. Verify the level when the engine is cold.
  2. Open the filler cap on the expansion tank (if fitted) or on top of the heat exchanger housing.
  3. Make sure the coolant level is about 1 cm below the bottom of the filler pipe.
  4. If required, top up with fresh cooling liquid.

Full service-parts list: Craftsman Marine CM4.33 →, Craftsman Marine CM4.42 →

Source: Craftsman Marine owner's 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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