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    • Cummins Marine Forum Topics
    • Fuel shutoff solenoid problem

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

      September 25, 2018 at 1:39 pm I changed the key ignition switches on our 43 ft Bayliner (twin Cummins diesels) because I thought one of them wasn’t working. What a mistake. They seemed to work fine but after about 10 minutes both engines died. The fuel shutoff solenoids were both burned out according to the mechanic who looked at the boat but he looked at the switches I installed and said that they couldn’t have been the cause. I don’t want to replace t…

      Started by: henry pounds in: General Discussion

      4 Replies
      January 10, 2020 at 7:10 am HOW COULD? Happened right after changing a key switch? 1) A high resistance ground connection caused by corrosion 2) The “suck-in” high current coil in the fuel solenoid ( 40 amps or so) stayed energized for some reason and it got too hot. Are you sure the magnetic switch under the starter ( that controls the “suck-in circuit thru the start switch circuit) shows ZERO sighs of rust corrosion? 3) Better recheck the “k…

      Last Post by: Tony Athens posted: 4 years ago

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