Forum Topics Started

Viewing 2 topics - 1 through 2 (of 2 total)
    • Cummins Marine Forum Topics
    • QSC 8.3 exhaust smoke issue

      This topic has 2 replies, has 2 voices, and was last updated byTim Bogle 1 year ago

      April 25, 2022 at 7:12 pm Hey guys, Iā€™m hoping for some good advice. Ā I have Twin QSC 8.3ā€™s Ā now at 900hrs. One is smoking only when accelerating, the other one is very clean. This smoke problem has been there for 5 years, possibly getting slightly worse in recent years. Ā Aftercoolers serviced 2 years ago. No difference since then. How can I check the injectors and fuel injector pump? The boat had sea water in the fuel due to bad fuel breather positions (now fixed) when …

      Started by: Tim Bogle in: Cummins Marine Engines

      2 Replies
      June 6, 2022 at 9:03 pm The exhaust smoke is black when accelerating under load/ underway. The starboard engine exhaust is clear under load. Ā I think itā€™s a injector or fuel pump issue (maybe over – fuelling?). I guess that I need to get the fuel system tested by a mechanic with all the tech gear? Thanks Clark.

      Last Post by: Tim Bogle posted: 1 year ago

    • Barry Controls engine mount tear down

      This topic has 7 replies, has 4 voices, and was last updated byPhilip 4 years ago

      June 11, 2019 at 10:54 pm Two questions: I need to figure out if my 9 year old Barry engine mounts holding down one of my QSC8.3 engines can be carefully disassembled so that I can remove one mount to restore the rusty paint (or replace it) without moving the gearbox. The crux of the problem is that I canā€™t get decent access to treat the rust with the mount staying in place. Iā€™m wondering if I can fully remove the central threaded shaft and then unbolt the two side bol…

      Started by: Tim Bogle in: Cummins Marine Engines

      7 Replies
      June 16, 2019 at 10:31 pm If your going to do it then it has to come off the engine completely to be done properly. Itā€™s not that big of a job really – drain the coolant, remove the plumbing tube/hose, and then a few bolts top and bottom and it comes off as a unit. Get it on a bench and remove the bundle for service just as you would the aftercooler. The heat exchangers donā€™t see the same wear at the sealing surfaces because the pressures are close on both sides (…

      Last Post by: Philip posted: 4 years ago

  •  

Viewing 2 topics - 1 through 2 (of 2 total)