12v coil ?
 

What 12v coil with built in resister do I need to convert my 49 flathead?

Re: 12v coil ?
 

49merc,
NAPA IC 64 or the Bosch 00012. The Bosch has a funky aluminum case if
you are into funky.
Charlie ny

Re: 12v coil ?
 

You might also check with Bubba's Ignition. I use his could and they have worked well for me ....

Re: 12v coil ?
 

I don't like funky haha. I got a 12v coil and stater solenoid from Vintage Auto garage but I think i burnt it up. Put a meter on it and Ohm 200 +- was 3.4 & 20k center coil was 8.4. Trying to get my motor to start on the frame 2 yrs ago I had it dynoed and broke in it ran good. I also got a napa number off of a tractor site ic145b ? Anyone heard of that one?

Re: 12v coil ?
 

I went to Napa and the ic64 is now the ic14.
Anyone know the OHM reading it's supposed to be?

Re: 12v coil ?
 

You would have to have the spec's on that specific coil, but in general as shown. IF you are not using a ballast resistor you want something in the 4 ohm range in the coil itself.

All I can find with a quick search is: NAPA IC-14 Echlin 3.25 ohms primary resistance

Re: 12v coil ?
 

Thanks. That's what mine is measuring. So I guess I didn't over heat it.

Re: 12v coil ?
 

JSeery: Thanks for posting that testing diagram.

I have a 12 volt coil from both Bubba and Charlie NY (a Bosch Blue). IMHO they are both top quality for professional services and parts. My two both test at about 3.4 ohms.