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    • Cummins Marine Forum Topics
    • Aftercooler core possibly leaking?

      This topic has 1 reply, has 2 voices, and was last updated byTony Athens 4 years ago

      August 24, 2019 at 12:51 pm I posted this over on boatdiesel, but then I remember this forum. Anyway… Got back from 3 days on the water and was able to do a thorough search through the engine room. I noticed a tiny bit of greenish water settled in some corners on top of one of the aftercoolers. (QSB550s) Searching around, I noticed what looks to be some greenish liquid sprayed from the air side of the aftercooler going to the intake. I disassembled the aftercoolers …

      Started by: Grant Robarts in: Cummins Marine Engines

      1 Reply
      August 25, 2019 at 8:40 am Get back farther and show the entire area and the engine.. Total current hours? When you say you dissembled the aftercoolers– On the engine? Off the engine? What exactly did to take apart? Any pics of your work? S. Calif– Where did the engines come from? Who installed them? In-service date? ( the date they saw saltwater and you started using the boat/engines) Where were they seatrialed and by who? New vessel or repower? Tony

      Last Post by: Tony Athens posted: 4 years ago

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