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MTU 16v2000 diesel longevity and overal comments

Discussion in 'Technical Discussion' started by ArielM, Nov 28, 2014.

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  1. ArielM

    ArielM Senior Member

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    hi i am looking at a few 60+ sport fish that have mtu 16v2000 motors all under 2000 hours. I have searched around and i can't find a lot of comments with regards to the quality of the motor. how many hours do they last at the 1800hp rating? Are they reliable motors? Any design flaws? are part substantially more expensive then that of Cats? How much does it cost for a rebuild on these? Any other comments regarding these engines? Any input you have would be great. thanks.
  2. captholli

    captholli Senior Member

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    A little more info may be needed. I would think that your asking about 16v2000 TE90
    motors in lieu to the M- 90, to 94 series.
    I have found that MTU has no more issues with problems any more than other manufacturers and if there is a problem than service bulletins are issued with factory
    Upgrades to rectify .
    Any engine is only as good as the maintenance that it has received in the past and MTU has a "W" schedule of programed maintenance so let's say that your motors are close to 2,000 hrs on the meters. That would now require a W-2 maintenance program be carried out. Cost for a W-2 for these motors is around $ 85,000 dollars.
    Are parts for MTU's more expensive than say Caterpillar? Absolutely , besides the manufacturers difference , your dealing with the exchange rates of Euro vs Dollar . That being said MTU parts aren't any more expensive than MAN or Wartsilla it's just the major difference of domestic vs foreign made
  3. RER

    RER Senior Member

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    I've run a number of boats with 1500hp 12v2000's and the only problem I can recall is one boat that had coolant leaking into exhaust manifolds through the O-rings. They had to be replaced at around 4 years/1200 hours. If I recall correctly there is no MTU service bulletin for this but I've heard it's not uncommon on the 2000 series.

    Otherwise I can't say a bad thing about them and I agree with captholli's comments.
  4. Capt J

    Capt J Senior Member

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    The 16v 2000's are good engines and I agree with everyone's sentiments above. The issues I have seen with them have all been external issues. I've seen a lot of issues with accessory parts being of low quality or not lasting long enough. Starters, alternators, freshwater pumps having to be changed by 1000 hours on several of them I've dealt with. Not all at the same time. A starter here, an alternator on that one, a freshwater coolant pump on this one. The 1800 hp burn about 75gph at 80% load, so they're pretty good on fuel compared to others in their size.
  5. captholli

    captholli Senior Member

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    The starters are Manufactured by Bosch (above average) the sea water pumps are Gear driven Gilkes and have bronze manganese impellers that will chew nails, the fresh water pumps are MTU Plant 1 Friedrichshaven manufactured and are prone to seal failure after a few thousand hours but they're on the every 1,000 hrs MTU check list when adjusting valve lash and The W schedule for a pressure / Bar discharge reading and a casing pressure test.
  6. Capt J

    Capt J Senior Member

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    I've had to replace 2 starters, 1 on a 16v2000 with 800 hours and another on a 12v2000 with 300 hours. Freshwater pump on a 16v2000 with 1200 hours. A few injectors on the same 16v2000 and an alternator on a 12v 2000 with 650 hours. This is in my limited experience of dealing with about 4 sets of the engines.
  7. captholli

    captholli Senior Member

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    Wow, that's quite a bit and certainly above average. Did the mains have PTO's on them? I've run across a Moonen that went through starters for three years until we finally figured that the Port engine was starting under a minimal hydraulic load but enough of a load to take the starter out via the MTU Blue Vision start timer relay that cranks the engine uninterrupted for 4 seconds or until the oil pressure opens the circuit to interrupt the start sequence. never really had that much trouble with Bosch equipment be it their alternators or starter motors and if there were problems it was always something like low voltage or a bad crimp on a terminal in the D.C. Circuit
    Last edited: Nov 30, 2014
  8. Capt J

    Capt J Senior Member

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    No PTO, that was off of the gear. The starter on the 12v2000 started the motor and stayed on/running and wouldn't shut off.....I had to kill the engine and battery switch to stop it. The starter on the 16v2000 just wouldn't start anymore unless you hit it with a hammer.......
  9. captholli

    captholli Senior Member

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    If the starter motor continued to run than it had to have continuous voltage to energize which would point to a faulty starter solenoid sticking closed on voltage. funny what a hammer will do to seat dirty or worn brushes on a commutator and as silly as it sounds , yes please, hand me the Technicians hammer, trust me the motor or starter WILL comply! Been there and not proud to say in a pinch, done that...
  10. Capt J

    Capt J Senior Member

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    Yeah, but the hammer only works so many times....LOLOLOL
  11. NEO56

    NEO56 Member

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    Did a little homework today, spoke with a guy at S&S in New Orleans (yes he actually called me back) I was inquiring about the MTU 16V2000 M93 (2,400 hp) replacement costs. He came up with a number (Engine only, no Tranny, no Controls, etc.) $525,000 each. He then added that on a re-power unless you could prove otherwise that you'd probably be forced to slide into the M96 @2,600 H.P. which are Tier III. When I inquired to the price tag, I was told it was north of $600,000! So OP, whatever you end up buying is worth fixing! That's a big number to re-power.
  12. captholli

    captholli Senior Member

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    New builds have to conform with IMO tier III. a repower would be grandfathered into
    Tier II and not have to comply. Still, the German iron in Bobtail arraignment sans
    Gear box isn't for the weak of heart or check book. When you have a price like NEO was quoted that's a motor sitting in it's cribbage on the dock with out any ancillary sea water plumbing or electrics in the mix as far as a new build would be concerned. I priced two 16 v 2000 m-91 2,000 HP series last week and they were $400,000 each Bobtail in the shipping crates.
    Last edited: Dec 2, 2014
  13. NEO56

    NEO56 Member

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    Captholli, would you please define Bobtail? I was told "just an engine" included a starter, etc. everything but the Tranny's and the Controls. A little explanation would be appreciated. Thanks.
  14. Capt J

    Capt J Senior Member

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    A long block, the entire engine, but none of the wiring, accessories, motor mounts, things of that nature
  15. jspiezio

    jspiezio Member

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    Specifically, no transmission attached, thus it has a short or "bobbed" tail (like many hunting dogs). The same term applies to tractor-trailers when driving the tractor only, no trailer.
  16. captholli

    captholli Senior Member

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    No gear box. Motor sitting in it's shipping crate on the shop floor.
  17. NEO56

    NEO56 Member

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    Thanks guys...it was a new term for me...love increasing my vocabulary when I can....Kinda like "blowing the slobber" out of two strokes. :D
  18. ArielM

    ArielM Senior Member

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    sorry for the delay, but thanks to everyone for their input. I will let you know if i make progress on the boat.
  19. Noel Maxwell

    Noel Maxwell New Member

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    What would cause a rebuilt MTU16v2000m72 to produce excessive heat at the exhaust silencer to cause a fire
  20. Noel Maxwell

    Noel Maxwell New Member

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