SBT Jetski Engines, Parts & Accessories

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  1. #1
    Joined
    Sep 2004
    From
    Jupiter, FL
    Posts
    304

    Angry Air leak through spark plug threads on new motor..

    Not so good.

    I was pressure testing my warranty motor after reassembly only to find a significant air leak through the spark plug threads on center and PTO. MAG is OK.

    The air leak *does not* follow the plugs. Placed the plug that was on the front (not leaking) on PTO (which leaks the worst) and it continued to leak. The rear plug was moved to the front, no leaks still.

    To myself and my friend it looks like there's too deep of a chamfer on the head before the threads start. There's also a nick on the PTO head under the spark plug washer where you can even see it continues past the washer coverage area.

    Aren't these things pressure tested before they leave the factory?

    And can I just have two replacement heads sent out so I don't have to dissasemble everything again and ship this thing out again...



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    Last edited by javiert99; 08-12-2006 at 07:18 PM.

  2. #2
    Joined
    Mar 2003
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    Default Re: Air leak through spark plug threads on new motor..

    Yes they are pressure tested, but the threads on the test equipment is beefier than spark plugs, sometimes a slightly weak thread can slip through - but we will certainly take care of it ASAP! Yes I'm sure warranty can quickly ship out some new heads and o-rings, first thing Monday - just give them a call 877 330 0231
    SBT Tech Support is here to help with your problems.
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  3. #3
    Joined
    Sep 2004
    From
    Jupiter, FL
    Posts
    304

    Default Re: Air leak through spark plug threads on new motor..

    Thanks! I'll call first thing monday :)

  4. #4
    Joined
    Sep 2004
    From
    Jupiter, FL
    Posts
    304

    Default Re: Air leak through spark plug threads on new motor..

    I called warranty, and it looks like they will be OK with sending out two new heads, but my only gripe is that I don't have my new engine's serial # handy with me at work, and for some reason they can't cross reference my old serial #, claim #, phone #, or last name to find my new motor's serial #, all of which I have at work.

    Doesn't really make any sense to me. So I have to haul *** home from work during lunch to go grab that. There's gotta be a better way!

    Oh well, I'll call back this afternoon with the information required, as I really need those by tomorrow.

  5. #5
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    Default Re: Air leak through spark plug threads on new motor..

    We can lookup that info, however that is going on the assumption that it's all correct. Yes most of the time it is, but mistakes can happen, and we like to work of as many known variables as possible, so we need to know exactly what engine you have. That way we can lookup it's specs and cut the heads by a known amount, rather than guessing.
    SBT Tech Support is here to help with your problems.
    We try to answer each question quickly and accurately.
    Please do not use Private Messaging for Tech Support, use the forums.

  6. #6
    Joined
    Sep 2004
    From
    Jupiter, FL
    Posts
    304

    Default Re: Air leak through spark plug threads on new motor..

    I hear ya, don't get me wrong, I appreciate the replacement of the heads and not have to go through the whole motor swap process.

    The more right it comes out the better ;) I need to get back on that water soon.

  7. #7
    Joined
    Sep 2004
    From
    Jupiter, FL
    Posts
    304

    Default Re: Air leak through spark plug threads on new motor..

    Was looking forward to it shipping today so I can get this wrapped up like I discussed earlier with Yolanda, but it looks like it's not shipping out till tomorrow now even after rushing home to get that serial number at noon when I called in with the information..

    Not sure why 2:30 pm is the cutoff time for shipping.

    Sorry, just frustrated over the whole situation.. I just wanted to get the thing broken in this past Sunday instead of wrenching on it this week after work.. now it's delayed another day.

  8. #8
    Joined
    Sep 2004
    From
    Jupiter, FL
    Posts
    304

    Default Re: Air leak through spark plug threads on new motor..

    Got the heads today, thanks.

    I have my Clymer's head and head cover torque specs at home, but might as well verify with you since you guys have the Polaris specs themselves.

    What are the proper head and head cover torque #'s. I have the correct pattern.

    Thanks.

  9. #9
    Joined
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    Default Re: Air leak through spark plug threads on new motor..

    20 for the head, 22 for the cover.
    SBT Tech Support is here to help with your problems.
    We try to answer each question quickly and accurately.
    Please do not use Private Messaging for Tech Support, use the forums.

  10. #10
    Joined
    Sep 2004
    From
    Jupiter, FL
    Posts
    304

    Default Re: Air leak through spark plug threads on new motor..

    Thank ya much!

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