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    • Cummins Marine Forum Topics
    • V drive rattle at low RPM

      This topic has 2 replies, has 3 voices, and was last updated byDan 4 years ago

      December 3, 2019 at 3:35 pm I purchased a 33′ Wellcraft Express Cruiser with twin 8.1 liters Volvo Penta engines and V drive transmissions. Unfortunately, I trusted the seller as to it’s condition. I purchased the boat which was half way across the country through a reputable broker and a technician that I hired who was not very reputable. I had the boat shipped to me and when I received the boat, the starboard engine didn’t run well and the Starboard tra…

      Started by: carlorw in: Marine Transmissions

      2 Replies
      December 4, 2019 at 5:28 am I have a friend with ZF63IV transmissions hooked up to 5.7 crusader engines,one started making this noise (bad) at around 700 hours. He has tried (without success) changing the oil to Delo 40,removed the gearbox and had it torn apart (there was nothing wrong with it) reinstalled with a new torsional coupling. Check your plugs/cap/wires, if there is the slightest miss in the engine at idle it will enhance the rattling noise, in the end the only t…

      Last Post by: Dan posted: 4 years ago

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