Click for Furuno Click for Cross Click for Glendinning Click for Delta Click for Ocean Alexander

CAT 3412E problem

Discussion in 'Technical Discussion' started by Marcon, Jun 29, 2009.

You need to be registered and signed in to view this content.
  1. Marcon, Jun 29, 2009
    #1
    Marcon

    Marcon New Member

    Joined:
    Jul 16, 2008
    Messages:
    6
    Location:
    Italy
    I have 2 CAT 3412E with 1350 hp each on my boat. I have a problem with the port engine.
    When the engine is in drive, the engine going at 1.300 rpm maximum. If I accelerates, the engine does not endeavor and remains at 1300 rpm.
    If I positioned the reverser in neutral and accelerates, the engine quietly goes over 1300 rpm.

    Can you help me?

    Thanks in advance and sorry for my bad English

    Marco
  2. AMG, Jun 29, 2009
    #2
    AMG

    AMG YF Moderator

    Joined:
    Jul 26, 2004
    Messages:
    5,380
    Location:
    Sweden
    I have no idea how your engine model is run, but modern electronics sometimes put the engines in "limp mode" if something is wrong. Could be anything from cooling, to blocked fuel filters to low oil in the gearbox...? If nothing is shown on the dashboard, you can have a technician connect his laptop to check for problems.
  3. K1W1, Jun 29, 2009
    #3
    K1W1

    K1W1 Senior Member

    Joined:
    Sep 30, 2005
    Messages:
    7,427
    Location:
    My Office
    Hi,

    Do you have the ZF Two Speed Gearboxes and or Trolling Valves fitted?

    Do you get any heavy black smoke when trying to get her over 1300 rpm in gear?
  4. Marcon, Jun 29, 2009
    #4
    Marcon

    Marcon New Member

    Joined:
    Jul 16, 2008
    Messages:
    6
    Location:
    Italy
    Temperatures, water levels and oil should be ok.

    Yes, i have a ZF gearbox with drive and reverse gears.

    When I try to go beyond the engine stops in 1300 and accelerating further, remains to 1300 without endangering.

    Can I buy the diagnostic software from CAT?

    Thanks

    Marco
  5. K1W1, Jun 29, 2009
    #5
    K1W1

    K1W1 Senior Member

    Joined:
    Sep 30, 2005
    Messages:
    7,427
    Location:
    My Office
    Hi,

    What I meant was two forward gears not forward and reverse.

    I am not sure if you can just buy diagnostic software that you can run on a laptop of if you need communication modules and a CAT Box.

    From what I remember of those early Electronic Engines the Service Tech Electronic Box was like a normal green plastic CAT Toolbox that just had a panel and electronic guts in it.

    Do you get any smoke when trying to accelerate in gear?
  6. Marcon, Jun 29, 2009
    #6
    Marcon

    Marcon New Member

    Joined:
    Jul 16, 2008
    Messages:
    6
    Location:
    Italy
    No no, i have only forward and reverse.

    If i accelerate with the gearbox in nutral (no forward and no reverse) the engine goes quietly over 2000 rpm.

    I have not seen black smoke.

    thanks

    Marco
  7. K1W1, Jun 29, 2009
    #7
    K1W1

    K1W1 Senior Member

    Joined:
    Sep 30, 2005
    Messages:
    7,427
    Location:
    My Office
    Hi,

    There is so much that can cause problems like this I think you would be best served by getting a CAT Guy to come along with his box of tricks and tel you what is wrong with it in double short order.
  8. Capt J, Jun 29, 2009
    #8
    Capt J

    Capt J Senior Member

    Joined:
    Jul 11, 2005
    Messages:
    14,530
    Location:
    Fort Lauderdale
    I agree, get a CAT tech out to diagnose it. It sounds like a Turbo to me, but it could just be a computer issue. It's too hard to tell without seeing it.
  9. Marcon, Jul 8, 2009
    #9
    Marcon

    Marcon New Member

    Joined:
    Jul 16, 2008
    Messages:
    6
    Location:
    Italy
    Last weekend the technician came and fixed the problem.
    It was the pressure sensor of the turbo. He replaced and now everything is ok!

    Thank you all for your help!
  10. K1W1, Jul 8, 2009
    #10
    K1W1

    K1W1 Senior Member

    Joined:
    Sep 30, 2005
    Messages:
    7,427
    Location:
    My Office
    Hi,

    I am pleased to read that you got it sorted easily and hopefully at a reasonable cost.

    Thank you for posting back with what went on, it may well be a help to someone in the future with a similar problem.

    Enjoy the rest of the summer on your boat.
  11. Pascal, Jul 8, 2009
    #11
    Pascal

    Pascal Senior Member

    Joined:
    Feb 29, 2008
    Messages:
    8,546
    Location:
    Miami, FL
    glad you got fixed, do you have teh CAT electronic displays at the helm? i wonder why they didnt' give a you fault message

    also, on the 1400hp 3412E I have on the boat I run, after a start in the ER, teh red warning light will flash a number of time indicating the error code. check the manual, that cbna be a helpful indication of what's going on.