hey hambers does any one know of these coils? there is a 12 on the bottom, and 29 26 stamped on the mount and a uf that is together on the other side. any help would be great thanks paul
that is a "AMPCO" coil missing the aluminum tag. it should have a couple small blind holes on the front where it is riveted on. super neat unit. i have one myself. i really like the angled terminal towers. hard to find info on these it seems. mine is 12v as well. i sold a 6v unit awhile back.
Bead blast it, cut the holding band at the top, turn it over and warm the casting with a torch until the guts fall out. Careful hot tar comes out with the windings. You'll end up with something like this... Then you can epoxy any coil in it that matches your ignition system. This has a brand new coil epoxied inside.
thanks to all for info. i think i need a lesson on coils. Why could i not use it? do i need to test it for compatibility , if so how? if i am talking crazy talk then i will put in a new coil in the body. thanks paul
I've had old coils give me troubles so I prefer new ones. No start when up to operating temp. If it works you'll probably be OK. I have read here (the only place I've ever seen it written) that there is no difference between 6 and 12V coils but the makers have been making different 6 and 12 V coils ever since 12 Vs came along about 1954-55. I doubt that they would make 2 coils if one coil would "fitz-all". Will it run on a 6V coil? Damn if I know. I never tried it but I doubt that it would be the optimum out put. JMO without any scientific testing. Some ignition systems come with special hot coils that can be put into one of these coil bodies.
PAULY...Iam 68 yrs. old and have never heard of anyone melting the tar and recoiling. man what dimention do these folk's come from. and tommy YES! there is definitely a differance between a 6 volt and 12 volt coil. unless our time traveler can show me. but don't hold your breath...POP.
I thought the ballast resistor on the coil was to limit the voltage to 6volt during run and allow 12volts during cranking.
Air must be getting thin in oregon, there is a difference bETWEEN a 6and 12 volt coil until someone proves a lot of people wrong!
The ballast resistor is just that. It limits the current that flows thru the coil when the points are closed - without resistor coil will overheat and eventually fail. That's why many cars bypass it for starting, hotter spark, but you can't operate without resistor forever. Turns ratio is one of the differences between 12 v and 6 volt coil. But if had a 6v coil that was looking cool like this I'd use it on 12 volts.
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