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Old 04-16-2015, 10:42 AM
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njsteve njsteve is offline
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Default Re: A Newer Project!

I think the problem they had with these initial platinum plugs was that the tiny little "puck" of platinum on the tip of the electrode ground would fall off through wear or with via someone checking the gap with a feeler gauge and dislodging it. If you look carefully you can see most are missing their pucks, hence the wide gap.
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