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  1. #21
    Join Date
    May 2018
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    1,338

    Default

    Centurions draft 10” deeper than moombas and Supras, this might have something to do with it.


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    2018 Supra SA 400
    Michigan

  2. #22
    Join Date
    Apr 2013
    Location
    Knoxville TN
    Posts
    1,349

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    Quote Originally Posted by haknslash View Post
    or is it just an issue with their exhaust silencer design that causes water to enter into the engine? .
    I thought they put that Stinger exhaust on the boats to help so that hydro locking did not happen.

    Pretty sure the issue was before that new exhaust came out.


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    2018 Supra SL400

  3. #23
    Join Date
    Feb 2018
    Location
    Central Bama
    Posts
    456

    Default

    Quote Originally Posted by MJHSupra View Post
    I thought they put that Stinger exhaust on the boats to help so that hydro locking did not happen.

    Pretty sure the issue was before that new exhaust came out.


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    This is the video I watched and its from this year. I'm not that familiar with what years but seems it was still a current issue and something to think about with those boats when sitting in a cove.

    https://youtu.be/ZFiEqqe0kWk
    2019 Moomba Max
    2016 Yamaha AR192 - sold

  4. #24
    Join Date
    Apr 2013
    Location
    Knoxville TN
    Posts
    1,349

    Default

    Quote Originally Posted by haknslash View Post
    This is the video I watched and its from this year. I'm not that familiar with what years but seems it was still a current issue and something to think about with those boats when sitting in a cove.

    https://youtu.be/ZFiEqqe0kWk
    Yea - some owners pretty POed about that issue on those boats. Recall reading about it.

    That video is from BoardCo, they are big dealer of that boat line - if not the biggest. So the information you get is different vs an owners who have gone through this. Just saying . . .

    If you visit the other forums, you will not hear as many stories like you once did on the Centurion boards about hydolock on 6 figure boats. Not sure if they are on boats with rubber exhaust flaps OR that new exhaust OR both. All boats have issues - screens, software, electrical, etc, but this specific one more prevalent on Centurion.

    Can also be caused by an item like a bad head gasket, bad rubber exhaust flappers or stopping the boat suddenly, killing the motor the exhaust pressure.

    Want so see a Boat Salesman squirm? Go to the local boat show, go to the Centurion booth, bring this subject up.
    2018 Supra SL400

  5. #25
    Join Date
    Aug 2017
    Posts
    758

    Default

    Quote Originally Posted by haknslash View Post
    This is the video I watched and its from this year. I'm not that familiar with what years but seems it was still a current issue and something to think about with those boats when sitting in a cove.

    https://youtu.be/ZFiEqqe0kWk
    He's full of crap saying it's a problem on all boats. It's a Centurion problem, not because of the 5k ballast, it's because the boat drafts so much deeper and as a result the motor sits lower than any other boat, relative to the water line. Put 5k in a Supra, plus people on the back, you won't have this issue.
    2019 Supra SL450

  6. #26
    Join Date
    May 2018
    Posts
    1,338

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    Geez they even came up with a fancy name for it, “Passive Hydrolocking”. That is a marketing method of making it sound common.

    I stand by my 10” deeper draft as root cause.


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    2018 Supra SA 400
    Michigan

  7. #27
    Join Date
    Aug 2017
    Posts
    758

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    Quote Originally Posted by larry_arizona View Post
    I stand by my 10” deeper draft as root cause.
    That's exactly what it is, because the motor sits so much lower due to the greater draft.
    2019 Supra SL450

  8. #28
    Join Date
    May 2018
    Posts
    1,338

    Default

    The bigger question is, with this design flaw, does Centurion warranty “passive hydrolock”?


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    2018 Supra SA 400
    Michigan

  9. #29
    Join Date
    Jun 2008
    Location
    Henderson, NV
    Posts
    5,391

    Default

    knowing they are coming out of the same area, supreme have the same issues?
    '06 Supra Launch 20SSV-gone but never forgotten

  10. #30
    Join Date
    May 2018
    Posts
    1,338

    Default Supra SL vs Centurion RI 237

    Quote Originally Posted by sandm View Post
    knowing they are coming out of the same area, supreme have the same issues?
    Very possible as they draft 36”


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    2018 Supra SA 400
    Michigan

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