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  1. #1
    Join Date
    Jun 2020
    Location
    Rockwall, TX
    Posts
    10

    Default White smoke at the 10hr mark

    I picked up my first Moomba on Thursday and around the 10hr mark some white smoke was noticed coming from under the water platform. At first I searched and thought it was just vapor from some forums, but now it's doing it consistently while cruising or surfing

    Coolant temp stays around 160-ish
    no smoke in the engine compartment
    engine runs good and no issues other than the smoke.

    Any ideas?

  2. #2
    Join Date
    Aug 2011
    Location
    Commerce Lake, MI
    Posts
    2,053

    Default

    Got video?
    Watch the coolant level.


    Sent from my iPhone using Tapatalk
    2017 Moomba Craz

  3. #3
    Join Date
    Apr 2013
    Location
    Knoxville TN
    Posts
    1,613

    Default

    Many people think the vapor from the exhaust is something along the lines of oil consumption.

    If you do not have a surf-pipe, once you start surfing you can smell fumes - it's normal.

    I would keep and eye on the oil and coolant levels (as Stazi mentioned). Many on here can help if you post that short video.
    2018 Supra SL400

  4. #4
    Join Date
    Jun 2020
    Location
    Rockwall, TX
    Posts
    10

    Default

    Quote Originally Posted by Stazi View Post
    Got video?
    Watch the coolant level.


    Sent from my iPhone using Tapatalk
    I'll get a video this afternoon and post it up- thanks

  5. #5
    Join Date
    Jun 2020
    Location
    Rockwall, TX
    Posts
    10

    Default

    the surf pipe isn't on this boat- my concern comes from the "smoke" coming out while cruising as well as surfing. Is that normal

    I plan on adding the surf pipe at my 20 hour service,

    the oil pressure and coolant temp are staying normal, I'll keep a close eye on the levels as well.

  6. #6
    Join Date
    May 2018
    Posts
    1,710

    Default

    I think what your seeing is simply exhaust coming out through the water. Byproduct of underwater exhaust.

    Put a surf pipe on it, if it was coolant it would smell sweet and likely billow in clouds.


    Sent from my iPhone using Tapatalk
    2018 Supra SA 400
    Michigan

  7. #7
    Join Date
    Aug 2011
    Location
    Commerce Lake, MI
    Posts
    2,053

    Default

    Quote Originally Posted by larry_arizona View Post
    I think what your seeing is simply exhaust coming out through the water. Byproduct of underwater exhaust.

    Put a surf pipe on it, if it was coolant it would smell sweet and likely billow in clouds.


    Sent from my iPhone using Tapatalk
    Exactly my thought.


    Sent from my iPhone using Tapatalk
    2017 Moomba Craz

  8. #8
    Join Date
    May 2018
    Posts
    1,710

    Default White smoke at the 10hr mark

    The raw water cooling loop does discharge through your exhaust.

    You can get a lot of exhaust fumes at the back of boat, great idea to get the surf pipe.


    Sent from my iPhone using Tapatalk
    2018 Supra SA 400
    Michigan

  9. #9
    Join Date
    Jun 2020
    Location
    Rockwall, TX
    Posts
    10

    Default

    thanks everyone for the feedback and info. I'll keep tabs on the levels and as soon as they open in the morning I'll schedule for the surf-pipe install

  10. #10
    Join Date
    Jun 2020
    Location
    Rockwall, TX
    Posts
    10

    Default



    Here is the video from this evening after about an hour on the water

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