Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › Engine idle speed

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  • February 2, 2021 at 1:34 pm #109874

    fjdllc
    Participant

    1. What is the correct idle r.p.m. Cummins 6CTA 400?

    2. Is it best to adjust the rpm at the throttle levers (helm) ?

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  • February 3, 2021 at 9:13 pm #109943

    Tony Athens
    Moderator
    Vessel Name: Local Banks
    Engines: QSB 6.7 550 HP
    Location: Oxnard, CA
    Country: USA

    Read this:

    Nippon Denso EP9 Idle – Bumper Spring Adjustment

    These engines are not very idle friendly—————-Final number is usually between 600-& 750, meaning “seat of your pants”..

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