Forum Topics Started

Viewing 3 topics - 1 through 3 (of 3 total)
    • Cummins Marine Forum Topics
    • Engine won t go over 1500rpm

      This topic has 7 replies, has 3 voices, and was last updated byTony Athens 2 years ago

      May 15, 2021 at 11:05 pm Hello One of my 380 5.9 qsb wonā€™t go over 1500rpm when in gear and well above in neutral. We just changed the fuel and injection pumps. All filtres are cleaned and new. Diesel is 6 months old. Any idea? Many thanks for your help. O

      Started by: Olivier in: Cummins Marine Engines

      7 Replies
      May 17, 2021 at 5:54 pm The lift/priming pump is on/part of the the engine is is buried behind the ECM.. Based on your question, it sounds like you need a qualified mechanic, IMO, not employed by Cummins.. You tried that and it did not work.

      Last Post by: Tony Athens posted: 2 years ago

    • Main crank shaft error message

      This topic has 4 replies, has 2 voices, and was last updated byCorey Schmidt 3 years ago

      July 19, 2020 at 12:14 am Has anybody got any idea about Main crankshaft error message on Qsb 5.9. Code 115,689,2321. Can we still use the boat? could damage sensor give that message? How do you remove error messages? Would appreciate your help many thanks.

      Started by: Olivier in: Cummins Marine Engines

      4 Replies
      July 27, 2020 at 8:11 am All of the part info is here: Cummins QSB 5.9, QSC 8.3, & QSL 9 Position Sensor

      Last Post by: Corey Schmidt posted: 3 years ago

    • Changing serpentine belt

      This topic has 13 replies, has 5 voices, and was last updated byBill Stenger 4 years ago

      September 25, 2019 at 6:43 am Hello My mechanic changed our serpentine belts as part of the big service. One hour into our first trip out I could smell burning. Called him and he said that was ok as there is tensioner. 30 hours later belt broke. Called him again back and he could not explain the reason I checked all pullies and all fine apart from the one where the 2 belts are. All the screws were loose and the pulley was wobbly. I suspect this is the reason why the belt bro…

      Started by: Olivier in: Cummins Marine Engines

      13 Replies
      October 10, 2019 at 12:58 pm Be prepared to press that bearing out and in with a press of sorts. it doesn’t just slip in or out. just a heads up.

      Last Post by: Bill Stenger posted: 4 years ago

  •  

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