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04-27-2013, 09:05 PM | #1 |
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Location: South East Wisconsin
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Late 31 Ford Script Coil
I bought this coil at a local swap yesterday. JS sez July 31 to end of production. Put it on a car this morning and no spark, and it gets warm. Shorted windings. Only gave 2 and a half bucks for it, so no big deal. Is there anyone who can dissassemble and rewind ignition coils? Thanks
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04-27-2013, 09:11 PM | #2 |
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Re: Late 31 Ford Script Coil
that is a 32 coil not Model A, the Model A does not have the oval around the Ford script. other then that they are the same.
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04-27-2013, 09:12 PM | #3 |
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Re: Late 31 Ford Script Coil
Measure the primary terminals for ohms. You should have about 1 1/2 ohms, or, if you put it on a 6 volt battery charger, you should have a reading of about 4 amps.
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04-27-2013, 09:49 PM | #4 | |
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Re: Late 31 Ford Script Coil
Quote:
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04-28-2013, 07:18 AM | #5 |
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Re: Late 31 Ford Script Coil
So this is a Model B coil? It does have the oval Ford script, and the JS shows a coil WITHOUT the oval. I stand corrected. Thanks Mr Hash.
Tom: I put the ohm meter across the two small terminals and get about 30 ohms. Same reading on a coil on a running car. Tried each terminal to the coil case. No reading at all. What am I doing wrong? |
04-28-2013, 01:02 PM | #6 | |
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Re: Late 31 Ford Script Coil
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Quote:
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04-28-2013, 01:06 PM | #7 |
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Re: Late 31 Ford Script Coil
I know Skip Haney rebuilds flathead coils, maybe he rebuilds Model A coils as well. His contact info can be found on the flathead forum without too much searching. Rod
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04-29-2013, 09:26 AM | #8 |
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Re: Late 31 Ford Script Coil
6v battery charger on the two small terminals reads 2.9 amps. What does that mean?
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04-29-2013, 10:06 AM | #9 |
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Re: Late 31 Ford Script Coil
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04-29-2013, 11:35 AM | #10 |
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Re: Late 31 Ford Script Coil
Apologies are in order, guys. I also have a rusty 30-31 coil with a huge dent that I tried this morning, and it actually worked! Never tried that one before because it loked so bad. So I thought, this nice looking Ford script coil should work as well. Turns out that it had a lot of crud in the high voltage terminal cap that goes to the distributor cap, so I cleaned it as well as I could with screwdrivers and drill bits, plugged the coil wire back in, and tried it again. Nice spark! Started the engine and it runs OK. So now I feel pretty foolish about running for advice before doing the basic home work. False alarm. I also researched some old theads on the same subject where Tom sez old coils usually work, now matter how bad they look. I can verify that Tom is right. All of my old rusty dented coils will run an engine as is.
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