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  1. #1

    Default Yanmar 1gm10 steam in exhaust

    I have a new yanmar 1gm10 which is sea water cooled. The engine was run in last season and has about 60 hours on it. This season I have noticed quite a lot of steam coming out the exhaust when the engine is under high load. It doesn't look like the flow of water is restricted because I also see water coming out of the exhaust. The water is pretty hot. Apart from this the engine runs fine and starts perfectly first time. Is this steam normal? I didn't notice it last season but was not running the engine at full load.

    Thanks Marek.

  2. #2
    Join Date
    Sep 2010
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    ontario
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    Default Re: Yanmar 1gm10 steam in exhaust

    I believe it would be watervapour and not " steam "

  3. #3

    Default Re: Yanmar 1gm10 steam in exhaust

    Quote Originally Posted by racerone View Post
    I believe it would be watervapour and not " steam "
    Yes I agree. I should have said water vapour. Anyway, the thing I want to establish: is this normal?

    Obviously its difficult to judge without seeing it. However I can say water vapour is not excessive, but it is certainly noticeable.

    Thanks

  4. #4
    Join Date
    Sep 2010
    Location
    ontario
    Posts
    13,815

    Default Re: Yanmar 1gm10 steam in exhaust

    This is normal.---------And you will see more of that on a cool day.----------Not sure of where you are but on a sub zero day in the winter you will see lots of water vapour coming out of tailpipes in traffic jams.-------Not to be seen on a hot summer day !

  5. #5

    Default Re: Yanmar 1gm10 steam in exhaust

    thanks for the advice! I'm in the UK it was about 60F yesterday probably cooler near the water surface.

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