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09-02-2010, 10:31 AM | #1 |
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spark plug gap model a
what is the gap fpr champion spark plugs they are at 35 th
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09-02-2010, 10:35 AM | #2 |
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Re: spark plug gap model a
Depends on what Champion plugs you have. 3X plugs were gapped at 35
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09-02-2010, 10:57 AM | #3 |
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Re: spark plug gap model a
Also looks to depend on when.. Tech Speaking Vol 6, page 58-82 gives from .025 (1928), .030 and .035 depending on which version of 3X was used..
I think that 31T was right with .035 unless you're having issues then try .030 |
09-02-2010, 10:57 AM | #4 |
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Re: spark plug gap model a
I use motorcraft plugs, with a 0.035 inch gap.
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09-02-2010, 02:33 PM | #5 |
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Re: spark plug gap model a
I use a gap of .035 on my model A's no matter what spark plug that I use. I prefer Champion W18 or The old C4 two piece plugs. A gap of .035 will give the best spark and any gap greater will shorten coil life unless you run electronic ignition.
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05-03-2018, 04:08 PM | #6 |
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Re: spark plug gap model a
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05-03-2018, 05:16 PM | #7 |
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Re: spark plug gap model a
Plug Torque--25 Ft Lbs.
Plug Gap---The thickness of a WORN Nickel. Point Gap--The thickness of a WORN Dime. Bill Serious
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05-03-2018, 07:08 PM | #8 |
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Re: spark plug gap model a
Perhaps .030 if you have a Hi Comp head.
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05-17-2018, 11:21 PM | #9 |
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Re: spark plug gap model a
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05-18-2018, 07:00 PM | #10 |
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Re: spark plug gap model a
I have always used .035 on any plug we’ve used in Model A’s.
Less has carboned up, more has caused miss fires at higher speeds. .035 seems just right. Enjoy. |
05-18-2018, 08:25 PM | #11 |
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Re: spark plug gap model a
The new old stock Champion C4 plugs that I have used at times on some of my cars recommended a gap of .032 . I ran -run the C4 plugs on .035 .The wider gap works good for me , no matter what spark plug that I use . Some are more interested in a slower idle and feel that narrower gap smooths and helps slow idle . Ford was concerned that higher compression would blow out the spark . I've never had that problem . The Pertronix Flamethrower coils that I use recommend opening up the spark plug gap even wider .
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10-10-2018, 09:04 PM | #12 |
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Re: spark plug gap model a
What part number Pertronics Flamethrower coil do you use.
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10-11-2018, 08:25 AM | #13 | |
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Re: spark plug gap model a
Quote:
Hehehehe, when growing up it was said point gap was set with a match book cover. I've been wondering how we do it now since you can't find match books anymore. Hehehehehe. |
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