Official Cummins QSC-500 Thread

Discussion in 'Diesel Engines/Drives/Transmissions/Props' started by Hampton, Nov 16, 2011.

  1. importmonkey

    importmonkey Opinionated Member SILVER Sponsor GOLD Sponsor

    Jul 9, 2015
    Middle River, MD
    2007 44 Sundancer
    QSC 500s
    Glad you said this. I just noticed and thought something was going wrong. Hitting all my numbers though, so I wasn't too concerned.
  2. Hampton

    Hampton Air Defense Dept TECHNICAL Contributor

    Nov 26, 2006
    Panama City, Fl
    2008 44 Sedan Bridge
    Cummins QSC-500's
    Straight Drives

    It's the little thinks that either keep us awake at night or help us sleep.
    importmonkey likes this.
  3. bbwhitejr

    bbwhitejr Well-Known Member SILVER Sponsor

    Apr 14, 2013
    Lake Lanier GA
    2007 44DB
    Cummins QSC 8.3s
    I am getting my annual maintenance items together and found the first post of this thread to be immensely helpful and is keeping me from "reinventing the wheel." I do have one question about the zincs. The thread sizes posted there do not seem to agree with the chart at I will not use zinc as I am in fresh water, but want to ensure I order the correct size.

    Are these the correct pencil anodes for the engines indicated by the red arrows?


  4. BlueYonder

    BlueYonder Member

    Jan 12, 2015
    Chesapeake Bay
    QSC 8.3 600
    I use four E-2 2" long zincs in my aftercooler and heat exchanger. I use 2 E-1G 1" long zincs in my Fuel/Transmission cooler.
  5. Magic34

    Magic34 Member SILVER Sponsor

    Jul 7, 2015
    Live in AZ, Boat in San Diego
    2007 44 Sundancer, AB dinghy
    Cummins QSC 8.3, 40 HP Yamaha
    I can’t seem to find the oil capacity of the generator anywhere. Can someone help?
    Also, do I use the same oil as the boat motors?
  6. Jaybeaux

    Jaybeaux Active Member SILVER Sponsor

    Jan 3, 2016
    Upper Potomac River
    420 Sundancer 2004
    Naught On Call
    Cummins 6CTA-8.3's with V-Drives
    9KW Onan Genset
    On my Onan 9 KW generator, I budget 1 gallon of oil. Of course, checking dipstick for final volume. I use the same oil as the engines: 15W40 Shell Rotella T4. Buy at Wal Mart.

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