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    • Cummins Marine Forum Topics
    • QSM 11 Mysterious shutdowns

      This topic has 12 replies, has 5 voices, and was last updated bydbbwell 7 months ago

      February 8, 2018 at 1:19 pm I have a pair of QSM 11s in a 2008, 50′ Altima trawler. I have owned the boat for 3 months and recently the starboard engine will shut down for no obvious reason. I am in south Florida with mild temps. The engine runs perfectly and suddenly turns off ( usually after operating for 30 minutes to an hour) as if I had pressed the shutdown switch and turned off the ignition. When this occurs the ignition to the starboard engine is dead i.e. no…

      Started by: Rich Dancaster in: General Discussion

      12 Replies
      September 19, 2023 at 8:44 am This thread was a lifesaver for me as my Maritimo with QSM11’s exhibited similar problems.Ā  The engine would shutdown, the Smartcraft screen would go blank, and the engine would only restart after a rest period of thirty minutes or so.Ā  The final shutdown occurred shortly after I cranked the boat, but I was still tied to the dock so I could do some trouble shooting.Ā  Ā  Thanks to this thread, I had a Power Probe set up in the engine room.Ā  …

      Last Post by: dbbwell posted: 7 months ago

    • QSM Exhaust Leaks

      This topic has 3 replies, has 3 voices, and was last updated byTony Athens 6 years ago

      October 31, 2017 at 3:55 pm I am looking for opinions from current QSM 11 owners, given the manifold leak issue and no for sure fix, if armed with this knowledge would they purchase a boat with QSM 11s? Note: Subject boat I am considering purchasing, has QSM 11 @ 610HP and 1050 hours. Starboard engine just had the manifold gaskets replaced (Cummins parts, gasket + new bolts and spacers using CAT gasket cement) due to a small leak by the #1 cylinder. I plan to have the pro…

      Started by: Rich Dancaster in: Cummins Marine Engines

      3 Replies
      October 31, 2017 at 7:51 pm Just so all know Skipjack’s back ground…. Larry has been though this all over many years on his own wallet and knows this stuff like no other.. Think of him as the “Gospel” as to this engine and it’s quirks……………….. But even better, he never complains even though it has cost him dearly.. My hat is off to him.. Tony

      Last Post by: Tony Athens posted: 6 years ago

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