Thread: spark plug gap
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Old 10-05-2020, 01:31 AM   #5
1930-Pickup
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Join Date: Mar 2017
Location: southern California
Posts: 725
Default Re: spark plug gap

Quote:
Originally Posted by keyswitch1 View Post
What gap should they be set at ?? Thank you !!
People are recommending a stock gap size for you, and that's good.

If you have a stock ignition system and engine, then that spec is fine.
The system is also forgiving in that if you change the gap slightly, nothing bad will happen.

Its also true that many folks on this forum run their gaps larger, .040 or .045 maybe. These folks may have a stronger coil compared to the weaker Ford coil, or other modifications that result in a stronger spark.

The point is, when you ask what your gap size should be, its also important to state what type of ignition system you have. Ford parts vs repop vs high performance, fairly new vs 90 years old, 6v vs 12v, electronic vs mechanical, and so on.

There is no doubt that you will get several different answers because folks have had plenty of varying experience working on these cars.
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