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  1. R

    Mainship Pilot 34 Vibration Problem

    34' Mainship single diesel - vibration problem I have a 34' Mainship with single Yanmar 370hp engine. Vibrates badly from about 2200 rpm to wide open 3300 rpms. Has anyone put a 5 blade prop on to fix this? If so, what is shaft size and prop size. Thanks
  2. R

    34' Mainship prop size

    I have a 2005 34' Mainship trawler with a single diesel Yanmar. It has a cavitation problem with the 4 blade prop. I have heard Mainship went to a 5 blade prop to solve the problem. Does anyone know the size of the recommended 5 blade prop. Thanks
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