Thus is a plug I took out of an engine that ran one hour. Notice it is he wrong plug, and it was installed without any lubricant. This is how threads get torn out of heads, and how time serts come out on the plugs . If you want your motor to go better than this, follow the directions in the MOP manual .
0300 Maintenance Operations and Procedures Manual
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Above, this plug is bone dry and rusty. The correct plus have nickel plated bodies which are comparatively immune to rust, and I have always specified Champion Spark plug lube.
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I knew the original builder of this engine. This was not a simple oversight, he wanted to debate about 50% of the things in my manual. it’s a free world, no one has to follow my recommendations. Your engine, your choice
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William
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