02-08-2026, 01:13 PM
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#1 |
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Junior Member
Join Date: Apr 2025
Posts: 10
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ing coil
1940 ford buisness coupe instaled 2 coils both shorted out ,6 vols in no volts out
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02-08-2026, 01:17 PM
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#2 |
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Senior Member
Join Date: May 2010
Location: Charlotte NC KiWi-L100 available here
Posts: 3,418
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Re: ing coil
Are points open?
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02-08-2026, 01:42 PM
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#3 |
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Junior Member
Join Date: Apr 2025
Posts: 10
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Re: ing coil
yes rebult disturber
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02-08-2026, 02:37 PM
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#4 |
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Senior Member
Join Date: May 2010
Location: Alabama
Posts: 3,455
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Re: ing coil
Does it have the resistor underneath the dash connected ?
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02-08-2026, 04:10 PM
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#5 |
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Junior Member
Join Date: Apr 2025
Posts: 10
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Re: ing coil
do not know where is it
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02-09-2026, 11:59 AM
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#6 |
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Senior Member
Join Date: May 2010
Location: Coral Springs FL
Posts: 11,916
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Re: ing coil
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Here's the resistor. Look at Post #2. It's on the driver side on firewall. https://www.fordbarn.com/forum/showt...+dash+resistor |
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02-09-2026, 12:40 PM
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#7 | |
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Senior Member
Join Date: May 2015
Posts: 11,643
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Re: ing coil
Quote:
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02-09-2026, 03:21 PM
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#8 |
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Senior Member
Join Date: Dec 2024
Location: central coast california
Posts: 593
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Re: ing coil
coils should show continuity between the + and - studs (they could be marked with something like a "FLD" or "BAT" or some other mnemonics) but there will be no continuity at the high voltage (tension) outlet between either stud.
if hooked up to a battery such that one of the coil's studs is connected to one the of the battery's terminals and the other stud is connected to the other terminal, the coil will emit current (and a very, very high voltage current) from the center outlet to ground, only when one of the coil's studs is disconnected from the battery. the voltage may be high enough to jump an air gap of up to an inch to get to ground. Last edited by hueyhoolihan; 02-09-2026 at 03:30 PM. |
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02-10-2026, 11:57 AM
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#9 |
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Senior Member
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 18,006
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Re: ing coil
The high tension secondary is connected to one side of the primary but it doesn't form a circuit in a normal sense. It just has access to the breaker that way. Some old ones are marked sw and dist to keep polarity correct.
Last edited by rotorwrench; 02-16-2026 at 12:13 PM. |
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02-11-2026, 03:06 PM
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#10 |
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Junior Member
Join Date: Apr 2025
Posts: 10
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Re: ing coil
THANK YOU FOR THE HELP THIS , IS MORE INF 1940 FORD BUINESS COUP FLATHEAD 6 VOLT , DISTRIBUTIOR / COIL IN FRONT OF ENGINE , ENGINE IS 221 , Have new coil im afraid to install thanks
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02-11-2026, 03:45 PM
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#11 |
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Senior Member
Join Date: Aug 2010
Location: McMinnville, TN
Posts: 2,468
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Re: ing coil
If you are using reproduction 1937-41 Ford coils that look original that is likely your issues. They are made by carpenter and are truly junk/
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02-11-2026, 07:08 PM
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#12 |
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Junior Member
Join Date: Apr 2025
Posts: 10
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Re: ing coil
i am using a reproduction with scrip from China bought in us [ drake ]
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02-11-2026, 08:12 PM
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#13 |
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Senior Member
Join Date: Aug 2010
Location: McMinnville, TN
Posts: 2,468
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Re: ing coil
That coil and the only original appearing "NEW" coil is made by carpenter. We are a carpenter dealer and refuse to stock them due to the issues with them. Your best bet is to have a original rebuilt by Skip Haney, or use a adapter plate with a modern type .8 ohm round coil.
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02-12-2026, 02:31 PM
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#14 |
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Junior Member
Join Date: Apr 2025
Posts: 10
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Re: ing coil
how do i find skip haney
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02-14-2026, 01:36 PM
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#15 | |
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Senior Member
Join Date: Jul 2010
Location: 36 miles north of Albany NY
Posts: 3,323
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Re: ing coil
Quote:
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02-14-2026, 02:23 PM
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#16 | |
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Senior Member
Join Date: May 2015
Posts: 11,643
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Re: ing coil
Quote:
Also V-12 Lincoln and Mercury George (Skip) Haney Coils and Pumps 941-505-9085 941-639-0920 [email protected] Hours Monday - Friday: 9am - 5pm |
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02-14-2026, 02:35 PM
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#17 |
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Junior Member
Join Date: Apr 2025
Posts: 10
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Re: ing coil
thank all of you for the help
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02-15-2026, 03:47 PM
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#18 |
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Junior Member
Join Date: Apr 2025
Posts: 10
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Re: ing coil
how do you test ignition resistance , what dose it do
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02-15-2026, 05:09 PM
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#19 |
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Junior Member
Join Date: Apr 2025
Posts: 10
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Re: ing coil
thank all ,i found the problem
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02-15-2026, 07:38 PM
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#20 |
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Senior Member
Join Date: Dec 2013
Location: Minnesota, Florida Keys
Posts: 12,136
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Re: ing coil
Well, what was it? We love solutions. Tie a bow on this thread.
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