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  1. #1
    SCHNORR12's Avatar
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    Anti-Seize on Spark Plugs

    Since this is not specific to any brand of watercraft, I think this is the most appropriate section to post in about this topic. I am a new PWC owner and after installing new NGK spark plugs in my ski many members told me to make sure I put some anti-seize on the threads of the new plugs. While I was on my way to the store today to purchase some anti-seize, I came across this link via Google. What do you guys think? Since I used NGK spark plugs should I go without the anti-seize?

    http://www.ngksparkplugs.com/pdf/TB-...1antisieze.pdf


  2. #2

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    Seems valid. Ford ran into this issue with their modular V8/10 engines.

  3. #3
    83.0 @ 8400 jhill19's Avatar
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    Quote Originally Posted by wickedsprint View Post
    Seems valid. Ford ran into this issue with their modular V8/10 engines.
    those fords also has had plugs blow out of the head countless times but to answer your question I use a very very very little bit of anti seize not much at all

  4. #4

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    Quote Originally Posted by jhill19 View Post
    those fords also has had plugs blow out of the head countless times but to answer your question I use a very very very little bit of anti seize not much at all
    That was due to two causes, not enough threads in head and over torquing due to anti seize. If the threads are slippery, they will stretch more before gauge goes "click".

    This will lead to stripped threads or broken plugs...hence fords prior problems and NJKs warnings.

    I'll be doing mine dry.

  5. #5
    83.0 @ 8400 jhill19's Avatar
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    Quote Originally Posted by wickedsprint View Post
    That was due to two causes, not enough threads in head and over torquing due to anti seize. If the threads are slippery, they will stretch more before gauge goes "click".

    This will lead to stripped threads or broken plugs...hence fords prior problems and NJKs warnings.

    I'll be doing mine dry.
    Exactly. Ive had to redo a few of the plugs on my girlfriends dads f150 5.4 triton.

  6. #6
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    If you have a Kawi u best be using anti seize or u will be sorry. And don't over tq your plugs

  7. #7
    wotxxxsd's Avatar
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    I've had them break on Kawi skis but never had a problem with my doos...
    So my suggestion to all Kawi owners to do yourself a favor and anti seize your plugs before ever riding your ski.
    And don't over tighten them..
    Youll end up taking the head off and its the most expensive spark plug change youll do..

  8. #8
    MSRXP's Avatar
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    The old saying, "A dab will do you," really comes true in this case. You don't need much at all. I apply a small dot on the threads and let the plug spread it when I install it. It is really easy to over do it. The less the better.

  9. #9
    Moderator OsideBill's Avatar
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    I was always taught to apply to the first three threads, same applies to pipe sealant, loctite, etc.

  10. #10
    Moderator OsideBill's Avatar
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    I have used anti-seize on every spark plug I have ever installed, be it in automotive or watercraft. I always use my torque wrench to tighten to 18 ft-lbs, I have never ever had an issue. Cast Steel heads, Cast Aluminum heads, Billet heads, OEM and aftermarket, I am not going to change my ways on this, it is habit and a good one IMO.

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