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coolant issue on 12 v 92s

Discussion in 'Engines' started by bluesuit, Feb 26, 2014.

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  1. bluesuit, Jul 20, 2014
    #61
    bluesuit

    bluesuit Member

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    Location:
    new orleans
    soot on transom

    what could cause this?? no smoke at cruise.
  2. Marmot, Jul 20, 2014
    #62
    Marmot

    Marmot Senior Member

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    Diesels emit lots of soot and other particulates even if you can't see any smoke.
  3. Capt J, Jul 20, 2014
    #63
    Capt J

    Capt J Senior Member

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    Is it a lot more soot than you normally see on the boat and which side of the transom is it heaviest?

    BTW. I have seen many bad reliabilt rebuilt injectors right out of the DD box.
  4. bluesuit, Jul 20, 2014
    #64
    bluesuit

    bluesuit Member

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    Both sides. Port engine just rebuilt. New injectors (port). Two had to be returned to s&s because they were stuck. 54 Bertram. Been told this is a characteristic of boat.
  5. Capt J, Jul 21, 2014
    #65
    Capt J

    Capt J Senior Member

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    It might be......Do both engines achieve RPMs at WOT? How sooty are you talking about? Do you have a picture? It's not uncommon for boats with DD's and older mechanical diesels to get some soot on the transom......and even some newer ones do as well.......
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