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Old 11-29-2020, 03:26 PM   #7
40 Deluxe
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Join Date: May 2010
Location: now Kuna, Idaho
Posts: 3,779
Default Re: About spark plug gap

Quote:
Originally Posted by redmodelt View Post
The gap maybe larger then you think. Add in the .025 at the distributor and makes it about the same as my S10 4 cylinder, around .060.

Well, not really. It's the larger gap that determines the voltage needed to fire the plug. The larger the gap (and the higher the compression pressure), the more voltage required. So the spark jumps that .025" rotor gap like it wasn't even there. Thus all the coil sees is the .035" plug gap.
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