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MTU 2000V M93 random shut down

Discussion in 'Engines' started by Jonnyhottub, Aug 25, 2022.

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  1. Jonnyhottub, Aug 25, 2022
    #1
    Jonnyhottub

    Jonnyhottub New Member

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    Ive been trying to fault find a random shut down on my STB engine. I think it is temperature related to engine room temp and therefore and electronic issue. I get random shut downs (gauges reboot) and then sometimes engine shuts off and restarts itself repeats a few time until I open engine room hatches and let the temp decrease from 41c to 36c I have only once seen this code during a shut down #SE)% nd05 0 10+A001-sam can Bus-1 Error/Bus defect. I am sure all the electrons will be motor rated to 105c so am at a loos to understand as with a thermal camera the most temp I can detect in the same are 56c
  2. Pascal, Aug 25, 2022
    #2
    Pascal

    Pascal Senior Member

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    Do you have blowers to cool your ER? We have an ER temp alarm on the boat i run which is set at 120F/49C. It s tripped a few times after a hit run if the blower were not set to run fast enough but even at 120/49 I ve been seen an issue. Don’t know the specs but I m sure the electronics are rated much higher than 120/49

    maybe you ECU is on the way out :(
  3. Jonnyhottub, Aug 25, 2022
    #3
    Jonnyhottub

    Jonnyhottub New Member

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    Max ER Air temp is 43c. The sam unit max operating temp is 70c.
    I have two blowers sucking air out all the time.
    I am trying to understand the system with control sam and eco to fault find.


  4. Pascal, Aug 25, 2022
    #4
    Pascal

    Pascal Senior Member

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    I wonder if the temp isn’t a coincidence and you don’t have a loose connection or ground somewhere
  5. Jonnyhottub, Aug 25, 2022
    #5
    Jonnyhottub

    Jonnyhottub New Member

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    Im convince its temp related. I have cleaned all connectors and re mated, I haven't checked all earths, but this would only problem if there was noise on the can bus (its a robust protocol). Is there MTU software I can use on a PC and connect to the tc/ip port? Or do I need the special cable.
  6. Pascal, Aug 25, 2022
    #6
    Pascal

    Pascal Senior Member

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  7. Jonnyhottub, Aug 26, 2022
    #7
    Jonnyhottub

    Jonnyhottub New Member

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    Thats a good idea, will give it a try.

    J
  8. Capt J, Aug 26, 2022
    #8
    Capt J

    Capt J Senior Member

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    it's only 107F. It sounds more like batteries going bad than heat. Or perhaps the heat is causing issues with the batteries........Sounds like the ECM's aren't getting clean power. Can't you get an MTU technician out with the laptop?
  9. Capt Ralph, Aug 26, 2022
    #9
    Capt Ralph

    Capt Ralph Senior Member

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    When heat goes up, resistance increases. A poor connect gets worse. A poor battery gets worse.
    Check your ground straps and battery connects.
    If the CanBus is rebooting, the J-based ECM has a bad V regulator or it is getting poor battery voltage.
    If you can find a pin-out to your ECM connector, there should be two B+ leads. One from the remote enable (key switch, on/off switch), the other from the B+ full time connect. Probably a few B- leads.
    Find the B+ leads and check levels with a recording DVM.
    Somewhere here you will find your bug back to B+.

    Another thought; What was the last boat/engine work done rite before these errors started??
  10. Sin miedo, Sep 29, 2022
    #10
    Sin miedo

    Sin miedo New Member

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    I have a pair of them in my boat. Recently, I am experiencing Mail seal oil leakage. Just wondering if this is a common problems with the MTU 10 V 2000 M93.
  11. Capt Ralph, Sep 30, 2022
    #11
    Capt Ralph

    Capt Ralph Senior Member

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    Mail seal oil leakage
    Can you define this?
  12. DOCKMASTER, Sep 30, 2022
    #12
    DOCKMASTER

    DOCKMASTER Senior Member

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    Guessing a typo for main seal?
  13. Capt Ralph, Sep 30, 2022
    #13
    Capt Ralph

    Capt Ralph Senior Member

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    O K, main or crankshaft seal.
    Front or rear?
    It is past humorous for someone ask a question and expects the forum to read their mind for details.
  14. Sin miedo, Oct 1, 2022
    #14
    Sin miedo

    Sin miedo New Member

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    Sorry, typo. Main seal leak.
  15. Capt Ralph, Oct 1, 2022
    #15
    Capt Ralph

    Capt Ralph Senior Member

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    Were getting closer, Front or rear seal?
    The front is serviceable in place with the correct tools.
    The rear is a PIA. Also, rear gaskets and other options may make it look like a rear seal and is not.
    One last thought, over filling the sump will flood the rear crank seal,, yes, it will then leak.
  16. Sin miedo, Oct 1, 2022
    #16
    Sin miedo

    Sin miedo New Member

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    Thanks. It is the front seal. Is it a common problem on these engines?
  17. Capt Ralph, Oct 2, 2022
    #17
    Capt Ralph

    Capt Ralph Senior Member

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    IMO, not a common issue.
    But it's a boat; Ship happens..:rolleyes::rolleyes: