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    • Cummins Marine Forum Topics
    • Expansion tank possible leak.

      This topic has 4 replies, has 3 voices, and was last updated byTony Athens 5 years ago

      March 15, 2019 at 12:53 pm I have an expansion tank for my 2001 Cummins 6BTA. It appears to be leaking as I see coolant dripping from a few different areas. I want to verify if it needs replacing. Something is not right. I assume this can be tested? Recommendations? I also purchased a new radiator cap. (15 lbs ) Would a radiator shop be the best solution or can I test it myself? Thanks for your time. Ron

      Started by: Ron Lemire in: Cummins Marine Engines

      4 Replies
      March 16, 2019 at 5:18 am Get it all cleaned up..Remove the other 1/8″ NPT plugs clean as re-installed using Rector Seal #5 and use the same on the hoses. Maybe a new cap 12-15 PSI ?—–Use a premium Stant or Cummins. Look closely at the brass filler neck for any nicks on the top sealing surface. Tony

      Last Post by: Tony Athens posted: 5 years ago

    • 6BTA thermostat

      This topic has 8 replies, has 2 voices, and was last updated byRon Lemire 6 years ago

      April 9, 2018 at 3:15 pm Greetings I plan on replacing my thermostat on my Cummins 6BTA. ( I’ve replaced all hoses, and cleaned the heat exchanger and the after cooler ) per the instructions on this site. I see Seaboard has 2 different temperature thermostats to choose from. I have a trawler and I typically Cruse at 7 knot’s. The previous owner has a note next to the temperature gauge indicating 170 degrees. ( It typical runs about 160-170 degrees ) What …

      Started by: Ron Lemire in: Cummins Marine Engines

      8 Replies
      April 11, 2018 at 12:44 pm Thank you very much. Ron

      Last Post by: Ron Lemire posted: 6 years ago

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