First timer outboard installation

Discussion in 'Outboards' started by DogCavalry, Oct 16, 2021.

  1. gonzo
    Joined: Aug 2002
    Posts: 16,803
    Likes: 1,721, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    If the engines are in good mechanical condition, you can run them in pre-mixed gas/oil. The computer mapping was wrong and the engines built up carbon siezed the rings and destroyed the pistons. You can also change the computers to the newer type after Bombardier took over the company, but is a lot more work and expense.
     
    DogCavalry likes this.
  2. Mr Efficiency
    Joined: Oct 2010
    Posts: 10,386
    Likes: 1,045, Points: 113, Legacy Rep: 702
    Location: Australia

    Mr Efficiency Senior Member

    The problem would likely be finding people with the expertise and diagnostic equipment to work on them effectively, in your area, shops these days don't seem much interested in working on old two stroke engines, and it being a "dead" brand only worsens that. Unless you have a clear picture of what the history of it is, in terms particularly of any software updates that might have alleviated the known problems, it is gambling. At the very least do a proper compression check, if the problem was gummed up rings and pistons, it will likely be reflected in differing compression readings. It would not be worth having to pull them down to fix that.
     
    DogCavalry likes this.
  3. DogCavalry
    Joined: Sep 2019
    Posts: 3,093
    Likes: 1,576, Points: 113
    Location: Vancouver bc

    DogCavalry Senior Member

    That's the first coherent description of what was actually wrong Gonzo. Thanks.

    I wouldn't even consider these engines with this reputation, but there's a worldwide shortge of outboards.
     
  4. DogCavalry
    Joined: Sep 2019
    Posts: 3,093
    Likes: 1,576, Points: 113
    Location: Vancouver bc

    DogCavalry Senior Member

    It's a bit reassuring that they are 23 years old and still running.

    Gonzo, what ratio of premix?
     
  5. Mr Efficiency
    Joined: Oct 2010
    Posts: 10,386
    Likes: 1,045, Points: 113, Legacy Rep: 702
    Location: Australia

    Mr Efficiency Senior Member

    As bajansailor alluded to, you need the engines hooked up to the diagnostics equipment to know what the history of them is, but I wouldn't even bother if they have cylinders that are significantly down on compression, that more than likely would require a re-build. Compression check the first thing to do I think.
     
    DogCavalry likes this.
  6. gonzo
    Joined: Aug 2002
    Posts: 16,803
    Likes: 1,721, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    You would run 50:1 mixture. It is not ideal but works.
     
    DogCavalry likes this.
  7. DogCavalry
    Joined: Sep 2019
    Posts: 3,093
    Likes: 1,576, Points: 113
    Location: Vancouver bc

    DogCavalry Senior Member

    Understood, Gonzo. In a worldwide shortage of engines, the used market does not exist. I'll be making some compromises.
     

  8. DogCavalry
    Joined: Sep 2019
    Posts: 3,093
    Likes: 1,576, Points: 113
    Location: Vancouver bc

    DogCavalry Senior Member

    Well, we definitely have the reverse waterfall effect.
     
Loading...
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.