Quote:
Originally Posted by TyroneShoelaces
Coming from a machinist/engineer with 20 years in micro machining I highly doubt you're gapping a plug within half a thou. Really you shouldn't be dragging a feeler gage over the electrode to begin with and opening and closing the gap within that range is unlikely imho.
And .0005 isn't going to matter to the car I think. Temp, fuel, custom tune, and a hundred other variables are going to affect the car more. But that's my opinion.
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+1
Way more likely to be caused by something else; fuel quality, ambient temps, or any combination of 100 other variables that would have more effect than a tiny bit of plug gap.