Click for Nordhavn Click for Walker Click for YF Listing Service Click for Mag Bay Click for JetForums

MAN 2842 V12 fuel temp warning

Discussion in 'Engines' started by Gustaf, Jun 23, 2022.

You need to be registered and signed in to view this content.
  1. Gustaf, Jun 23, 2022
    #1
    Gustaf

    Gustaf New Member

    Joined:
    Jun 21, 2022
    Messages:
    3
    Location:
    Sweden
    Having a problem with fuel temp warning, shows 0 deg C at start and sets warning and alarm. On both engines.
    Anyone who has experienced the same problem? Faulty sensor? Strange that both engines has the fault at the same time. One master engine maybe?
    Br
    Gustaf
  2. mapism, Jun 23, 2022
    #2
    mapism

    mapism Senior Member

    Joined:
    Aug 9, 2008
    Messages:
    2,116
    Location:
    Sardinia
    I see that you're in Sweden.
    Surely freezing temperatures are unusual also up there, at this time of the year, but I have to ask:
    R U sure the fuel isn't actually that much cold?
    MAN offer a pre-heater as an optional accessory, BTW.
  3. Gustaf, Jun 23, 2022
    #3
    Gustaf

    Gustaf New Member

    Joined:
    Jun 21, 2022
    Messages:
    3
    Location:
    Sweden
    Haha, yes it’s up north, but we do have +20 deg C now.
    I found a short circuit in the sensor on one of the engines. Have ordered two new ones now. But strange that there was a fault indication/alarm on both engines. Anyway, will replace both and see what happens.
    Thanks!
  4. Gustaf, Jun 23, 2022
    #4
    Gustaf

    Gustaf New Member

    Joined:
    Jun 21, 2022
    Messages:
    3
    Location:
    Sweden
    Pre heater, do you mean glow-plugs or actual pre heating of engine/coolant /oil?
  5. mapism, Jun 23, 2022
    #5
    mapism

    mapism Senior Member

    Joined:
    Aug 9, 2008
    Messages:
    2,116
    Location:
    Sardinia
    The latter.
    No room for glowplugs anywhere in MAN engines.
  6. Capt Ralph, Jun 23, 2022
    #6
    Capt Ralph

    Capt Ralph Senior Member

    Joined:
    Sep 8, 2004
    Messages:
    12,727
    Location:
    Satsuma, FL
    I have witnessed heat blankets that can wrap around fuel filters, elements that go inside of a large fuel filter and even a heat exchangeer (with filter) that uses warm engine coolant to warm up fuel before the engine.
    And all I worry about is cooling the fuel at it returns to the tank.

    It is interesting how different parts of the world must consider fuel temperature and how it is managed.
    Last edited: Jun 23, 2022