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Cummins n14 high oil pressure

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by LjRichards, Jul 2, 2022.

  1. Jul 2, 2022 #1
    LjRichards

    LjRichards Bobtail Member

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    Jul 2, 2022
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    So I changed the turbo and charge air cooler, and back head gasket, put new oil and filter on
    And on start up I'm running 40psi oil pressure? What should I check or is their away to check the sensor? I'm rev it up it won't go over 40 but will drop to about 30psi
     
    LjRichards, Jul 2, 2022
    LjRichards, Jul 2, 2022
    #1
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  3. Jul 2, 2022 #2
    jamespmack

    jamespmack Road Train Member

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    Thats in spec. Low psi, high volume is a N14. Been a few years. I think low level is either 12/18 warm at idle. If she does 35 psi wide open. Your good. Constant psi engine.
     
    jamespmack, Jul 2, 2022
    jamespmack, Jul 2, 2022
    #2
    haycarter, Big Road Skateboard and AModelCat Thank this.
  4. Jul 2, 2022 #3
    LjRichards

    LjRichards Bobtail Member

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    Jul 2, 2022
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    Ots run 30 to 40 psi on a cold start and not dropping
     
    LjRichards, Jul 2, 2022
    LjRichards, Jul 2, 2022
    #3
  5. Jul 2, 2022 #4
    LjRichards

    LjRichards Bobtail Member

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    Jul 2, 2022
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    Its 40 to 30 at idle
     
    LjRichards, Jul 2, 2022
    LjRichards, Jul 2, 2022
    #4
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