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flex plate

  1. Yanmar Dampner Plate (Flex Plate) problem

    Hi Sailors, I've got a Yanmar 3YM30 with 650 hours and I am getting a rattle at idle and up to about 1400 RPMs. It happens in neutral mainly and goes away if I increase idle in neutral or in gear. I can still shift smoothly into gear and there's no abrupt knock when I do it. I am trying to...