I keep seeing pictures where you guys are removing the metal at the end of the spark plug in order to see the ceramic color. I was wondering what is the easiest way to do this, if there is one?
The first method that come to mind would be to use a Dremel with a cut off wheel or and air powered cut off tool. Just be sure to wear safety glasses and gloves. The use of a vise to clamp the plug in while you are working on it will help to steady it and will save your fingers. I hope this helps.
If you can find a nut to match the thread on the plug, put the nut in a vice and overtighten the plug in the nut. It will shear off pretty easily at the base of the thread.
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