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    • Cummins Marine Forum Topics
    • QSM 11 leak at transmission cooler bracket

      This topic has 6 replies, has 3 voices, and was last updated byRobert Blakely 6 years ago

      July 2, 2017 at 6:26 am My 2006 Sea Ray Starboard QSM 11 w 1978 hrs has developed some sort of leak at the transmission cooler bracket. It is not slick like oil. It is coming out of bolt that holds the transmission cooler to the engine. Pictures are attached. Engine oil levels stay the same. Transmission oil level remains same. Any idea what problem is and fix? Thanks Rob

      Started by: Robert Blakely in: Cummins Marine Engines

      6 Replies
      October 20, 2017 at 2:48 pm I have been looking for source of the leak around transmission cooler and discovered that water was dripping from a missing bolt on the engine. The picture attached is not from ,y engine but a post from someone else. The bolt missing is the one in the corner. The bolt hole goes All the way through the the base of the other picture attached. I can see the bolt hole through when looking between the block and t he bracket that holds the heat exch…

      Last Post by: Robert Blakely posted: 6 years ago

    • QSM 11 oil pressure fluctuation

      This topic has 6 replies, has 4 voices, and was last updated bycaptx 6 years ago

      April 11, 2017 at 10:42 am I have a set of QSM 11’s with 3,000 hrs that have had a oil pressure fluctuation problem since they were new. One problem that was addressed early on was incorrect dip stick marks. As of right now with fresh oil at normal operating oil temps at 1950rpms Ā my pressures fluctuate between 34 and 30 psi. Around 125 hrs on a oil change my pressures will start to fluctuate between 34 and and 28 psi and every once and a while, say once ever 10min,…

      Started by: captx in: Cummins Marine Engines

      6 Replies
      June 14, 2017 at 8:34 pm I have access to alternative oil pressure ports. Will pick up gauge when I am home next. Engine serial numbers port 35232820 stbd 35232602. I have a 1000 hr service coming up and I am going to check/change oil pressure relief valves during to hopefully remedy the problem.

      Last Post by: captx posted: 6 years ago

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Viewing 2 topics - 1 through 2 (of 2 total)