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    • Cummins Marine Forum Topics
    • Engine Overheat

      This topic has 5 replies, has 5 voices, and was last updated byGeorge Samaha 3 years ago

      May 21, 2018 at 3:55 pm G’day All, Wondering if anyone has had a similar issue as what I am encountering at the moment. Basically the engine in overheating once under load. I can idle around all day but as soon as I get over 10 knots the temperature goes up to the stage of setting off the temperature alarm. The motors are Cummins 6BTA 5.9 m3 370hp. What I have done so far: First I thought I might have picked up a plastic bag – so I got a diver in and checke…

      Started by: Mark Bettiol in: Cummins Marine Engines

      5 Replies
      September 18, 2020 at 12:27 pm So what was it finally?

      Last Post by: George Samaha posted: 3 years ago

    • Cummins 6CTA 450,8.3,8m 1 2 3

      This topic has 50 replies, has 10 voices, and was last updated byGeorge Samaha 5 years ago

      October 24, 2017 at 4:15 am Morning, need some assistance. 2002, 1000 hours, 5 bladed prop, diameter and pitch unknown. Inter cooler serviced and gear cooler serviced in 2012, at 750 hours, report said seriously corroded, flushing and replacement of antifreeze done 2 years ago. WOT rpm unknown or at least that is what I am being told. Hot end of turbo and pipe and small part of inter cooler discolored light brown from heat, impeller ,oil , filters ,serviced regularly since…

      Started by: Bill kosky in: Cummins Marine Engines

      50 Replies
      May 11, 2019 at 10:17 am Hi again, to follow-up on my previous post, we had the aftercooler pressure tested at 30psi, and no leak. So there was no saltwater leak. PHEWW. The core was soldered, we had repaired some broken pipes and put it back the seaboard way with plenty of Metalube only a couple months ago. Now reopening it because I want to replace the old repaired core with a new one just received from sbmar, but was surprised that it was difficult to separate from…

      Last Post by: George Samaha posted: 5 years ago

    • Quick impression about used diesel engines

      This topic has 3 replies, has 3 voices, and was last updated byGeorge Samaha 5 years ago

      July 11, 2018 at 10:12 am Hello šŸ™‚ I am new on this forum and new to diesel engines except a little experience with a small diesel generator. My previous boat had a gas engine. Now looking to purchase a 1998 Maxum 4600 SCB with 2x about 1600hours Cummins 6CTA8.3-M3, S/N :45713973 date 24JUN98 (could not get the info about the other engine yet). Broker said engines are good but during our test drive, they could not go over 2000RPM at WOT and about 18kn, one boat comm…

      Started by: George Samaha in: Cummins Marine Engines

      3 Replies
      July 14, 2018 at 10:57 pm Hi Rick, Glenn, thank you both for your suggestions. I will post more info here when available.

      Last Post by: George Samaha posted: 5 years ago

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Viewing 3 topics - 1 through 3 (of 3 total)