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2gm20; yanmar
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  1. Diesel
    Hello, My yanmar 2gm20 has what appears to be a custom sensor wired to a custom gauge instead of the switch type sensor and the alarm. I don't find any mention of that type of things in my service manual. I would like to replace the sensor but would rather keep the gauge if possible. Is there...
  2. Diesel
    Hi The Yanmar 2GM service process says retighten cylinder head (after first x hrs), which I doubt has ever been done on mine. Its now up to 800 hrs and I'm going to give it a go using torque and sequence settings I've got. Do I have to slacken off, clean and oil all the bolts (in sequence)...
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