Ring gap on a 2007 SC 1503
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  1. #1
    PWCToday Newbie gunner12's Avatar
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    Ring gap on a 2007 SC 1503

    Hi everyone, What is a good ring gap on my built 1503 seadoo engine? it will be studded with a 300 SC setup and 50lbs injectors.
    I did a search but didn't find anything. Thanks for the help.
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    Last edited by gunner12; 09-17-2020 at 02:58 PM. Reason: image to big

  2. #2
    PWCToday Newbie gunner12's Avatar
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    Re: Ring gap on a 2007 SC 1503

    The gap now is 0.20 WSM spec sheet says .010-.018

  3. #3
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    Re: Ring gap on a 2007 SC 1503

    Did you mean 0.020" or 0.20"?? If 0.020" I would think that would be ok.

  4. #4
    PWCToday Newbie gunner12's Avatar
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    Re: Ring gap on a 2007 SC 1503

    Quote Originally Posted by jeatmon View Post
    Did you mean 0.020" or 0.20"?? If 0.020" I would think that would be ok.
    I'm using a standard Automotive feeler gauge and it says 0.20
    That is the biggest one I can fit in there

    Sent from my SM-N950U using Tapatalk

  5. #5
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    Re: Ring gap on a 2007 SC 1503

    OK, There is a lot of difference between .020" and .20" --- .20" is 1/5 of an inch or 200 thousandths of an inch.--- .020" is 20 thousandths of an inch.

    Maybe the gauge your looking at you can't see the decimal and it's really .020. In any regard, the gap should not be .20 but .020

  6. #6
    PWCToday Newbie gunner12's Avatar
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    Re: Ring gap on a 2007 SC 1503

    Quote Originally Posted by jeatmon View Post
    OK, There is a lot of difference between .020" and .20" --- .20" is 1/5 of an inch or 200 thousandths of an inch.--- .020" is 20 thousandths of an inch.

    Maybe the gauge your looking at you can't see the decimal and it's really .020. In any regard, the gap should not be .20 but .020
    Okay right on that makes sense. So I shouldn't need to go any bigger being that this will have more boost than a stock 215. I'll double-check with a better feeler gauge that actually has the right measurement.


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  7. #7
    PWCToday Newbie gunner12's Avatar
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    Re: Ring gap on a 2007 SC 1503

    So i put the decimal in the wrong spot! .020 is what i have currently.

  8. #8
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    Re: Ring gap on a 2007 SC 1503

    You are Good

  9. #9
    PWCToday Newbie gunner12's Avatar
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    Re: Ring gap on a 2007 SC 1503

    Great!! thanks for the help!

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