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MTU 16V2000 M91 full rebuild; in vessel

Discussion in 'Engines' started by Pascal, Oct 31, 2022.

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  1. Pascal, Nov 21, 2022
    #81
    Pascal

    Pascal Senior Member

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    Fuel lines installed, intake manifolds as well and a bunch of other things. Getting close!

    Attached Files:

  2. YachtForums, Nov 21, 2022
    #82
    YachtForums

    YachtForums Administrator

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    Looks like a LOT of work, Pascal. I feel guilty for watching the rebuild from the comfort of my office chair!
  3. Pascal, Nov 21, 2022
    #83
    Pascal

    Pascal Senior Member

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    More…

    Attached Files:

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  4. Pascal, Nov 22, 2022
    #84
    Pascal

    Pascal Senior Member

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    Always a good sign when the oil goes in….

    Attached Files:

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  5. Pascal, Nov 22, 2022
    #85
    Pascal

    Pascal Senior Member

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    It’s alive!

    sea trial tomorrow.

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  6. MBevins, Nov 22, 2022
    #86
    MBevins

    MBevins Senior Member

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    How much break-in is required on that puppy?
  7. Capt Ralph, Nov 22, 2022
    #87
    Capt Ralph

    Capt Ralph Senior Member

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    Oh, wrong video. Looking for the first turn over, then the second turn over Yada, yada, till it hit, then hit and kept running.
    Need also the same time from of the exhaust.
    Remember,, were watching everything...
  8. mapism, Nov 23, 2022
    #88
    mapism

    mapism Senior Member

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    Positively +1 on that!
  9. chesapeake46, Nov 23, 2022
    #89
    chesapeake46

    chesapeake46 Senior Member

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    I love that sound.
  10. Pascal, Nov 23, 2022
    #90
    Pascal

    Pascal Senior Member

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    we did a two hour sea trial today running at incremental speed for 20 minutes each between 1000 and 2000 RPM. We need to put a few hours on it below 2000 and then do another sea trial all the way to 2300 this time

    ran nice and smooth. We topped at 21.6kts at 2000 on 110 gph which is pretty good for a 116 footer. Flat water on the bay though, about 10-12’ deep

    the only glitch of the day was this morning when I went to fire up the port engine to check hydraulics and steering. Starter spun but didn’t engage. They replaced the starter when they got in. It was only 15 months old (replaced last year when we rebuild port).

    it also had a nice little sticker made in china…. Luckily I had kept the old one and had it rebuild. Turns out that MTU is having starters made by Prestolite in china …. And the kicker is that parts to rebuild the older MTU starters are no longer available.

    Attached Files:

  11. MBevins, Nov 23, 2022
    #91
    MBevins

    MBevins Senior Member

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    So basically under 10hours total and your good to go ?
  12. Pascal, Nov 23, 2022
    #92
    Pascal

    Pascal Senior Member

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    Yes pretty much. We do most trips to the exumas at 1100 anyway, with occasional runs at 1800/1850. I rarely push harder. 1800 gets us a solid 18kts
  13. Pascal, Nov 23, 2022
    #93
    Pascal

    Pascal Senior Member

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    Full video of the rebuild

    Hatterized, Lunderic, Capt Crabby and 5 others like this.
  14. MBevins, Nov 23, 2022
    #94
    MBevins

    MBevins Senior Member

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    That certainly makes life easier. And quite honestly 18kts with that size boat is pretty darn good.
  15. Pascal, Nov 23, 2022
    #95
    Pascal

    Pascal Senior Member

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    And that’s about 55% load
  16. MBevins, Nov 23, 2022
    #96
    MBevins

    MBevins Senior Member

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    That is really good ! Almost economical.
  17. AGP22, Nov 26, 2022
    #97
    AGP22

    AGP22 Member

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    Can you advise how long do your cruise at 1100 for?
  18. Capt Crabby, Jan 11, 2023
    #98
    Capt Crabby

    Capt Crabby New Member

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    How much for the QL4 service? Where at?
  19. Pascal, Jan 11, 2023
    #99
    Pascal

    Pascal Senior Member

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    Sorry, I missed your question. When going to or from the exumas, we may do most of the trip at 1100, that’s about 18/20 hours depending on whether we re going to Normans / Highborne or Gtown
  20. Pascal, Jan 11, 2023
    #100
    Pascal

    Pascal Senior Member

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    Not sure off hand what is the QL4 service. The inframe we did in July 2021 was about $200k. This full rebuild was $310k or so.
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