Changing Spark Plugs on a 1995 Nautique Super Sport with GT-40 Engine

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  • wesman
    • Jun 2006
    • 14

    • Lake McQueeney, TX

    • Used to own a 1984 Ski Nautique 2001, now own a 1995 Nautique Super Sport. Also have a Waverunner

    #1

    Changing Spark Plugs on a 1995 Nautique Super Sport with GT-40 Engine

    This might seem like a stupid question, but last weekend I set out to change the spark plugs, spark plug wires, distributor cap, and rotor. I was able to accomplish everything except changing the spark plugs. It looked like I needed to remove the exhaust manifolds to have enough room to get them out....am I wrong? I searched this forum and couldn't find any post where someone said they had to remove the exhaust components to gain access to the spark plugs. I tried using I believe it was a 9/16" deep socket, but it would not slip over the plug due to the exhaust manifold issue. Is there a different tool I need to be using or do I need to suck it up and remove the exhaust manifolds? Any advice or tips would be greatly appreciated. I have a 1995 Nautique Super Sport with a GT40 engine, V drive.
  • TX-Foilhead
    Senior Member of PLANETNAUTIQUE
    • Mar 2009
    • 351

    • Kingsland TX


    #2
    It tight, but they'll come out a without anything special. I don't remember what I used exactly, and I have GT40p's now which make it easy. I want to say you have to put the socket on first and then hook up the rachet and it may need an extension.

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    • jhersey29
      • Nov 2013
      • 330

      • Colorado

      • 1971 Correct Craft Mustang 1988 Ski Nautique 1992 Ski Nautique 1999 Ski Nautique

      #3
      I believe it is a 5/8". Use the socket as shown in the picture. If you're real tight you can use the 3/4" wrench on the socket instead of attaching the socket wrench. You might also be able to use a 5/8" box end wrench.

      Click image for larger version

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      • wesman
        • Jun 2006
        • 14

        • Lake McQueeney, TX

        • Used to own a 1984 Ski Nautique 2001, now own a 1995 Nautique Super Sport. Also have a Waverunner

        #4
        Thanks for the great advice! jhersey29, I need to get me a spark plug socket like the one you pictured! That would definitely give me more options!

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