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Old 03-20-2012, 09:32 AM   #1
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Too much dielectric grease on spark plugs?

I just replaced my spark plugs in my 2001 TJ I6. It seems to run great.

I put some dielectric grease in the coil rail boots. Afterwords, I did some reading.

Since dielectric grease is non-conductive, would it be a problem if some got between the plug and coil electrical contacts? If not, could there be too much?

Thanks!

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Old 03-20-2012, 09:43 AM   #2
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No problem at all. Whenever I replace plugs or wires I liberally coat the inside of the boot and the tip of the plug. Also use some anti-seize on the plug threads (don't get crazy with it), it's not as important with a steal head but still a good idea.

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Old 03-20-2012, 09:44 AM   #3
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Between the grease and the anti-seize, it gets messy doesn't it? Just a guess, but if its running fine, I wouldn't worry
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Old 03-20-2012, 09:58 AM   #4
Knows a couple things...

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Even if the dielectric grease got between the spark plug tip and connector inside the boot, the high voltage would pass through it like it wasn't even there. That voltage is enough to jump the gap at the spark plug so a thin layer of dielectric grease won't stop it.

Use antiseize sparingly on the spark plug threads, you don't want that stuff anywhere near the gap since it does conduct.
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