Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › Sensor on Combo Block?

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  • September 16, 2022 at 2:21 pm #136813

    Patrick Mangum
    Participant
    Vessel Name: Patty Wagon
    Engines: Cummins 6BTA 330
    Location: Charleston, SC
    Country: United States

    Prepping for my fuel cooler removal and noticed a sensor/sender mounted to the left of my oil pressure sending unit down on the combo block.  Has white wires coming out of it.  Traced them into a bundle and not sure what this sensor or sending unit is for?  2008 6BTA 330 Remans.  

    Item is circled in red in one of my photos.  Thanks.  

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  • September 17, 2022 at 6:43 am #136823

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

    OIL PRESSURE alarm switch–Was Not Cummins supplied.. 

    Not sure how it is wired, but usually you have a oil pressure alarm come on before you start the engine (key on) . Once the OP rises to above 8-10 PSI, the alarm goes away. 

    The larger  “other one”, is the sender for the oil pressure gauge.

     

     

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