Hot coil

S

scrub66

Member
I have a 66 IH Scout with a 4 cylinder and a petronix ignition. I also have a coil that that say "for use is electronic ignition. It seems like when I run the Scout for 10+ min the coil is too hot to touch. My question is should the coil be getting really hot?
 
No, it should not. Which ignitor version (I, II, iii) do you have? Are you still utilizing the ballast resistor to interrupt the key switch power supply to the coil? It is likely you have the incorrect primary resistance in some fashion. Once all the facts are in, this should be purdy easy to rectumfy.
 
I have the pertronix 1. Im am not using the a ballast resistor. I removed it when I installed the pertronix
 
Okay. With the 4-cylinder and ignitor 1, you need at least 3 ohm of primary resistance. Do you have a digital volt meter to measure the resistance across terminals of your coil? This should be done with all wires disconnected with the coil reasonably close to room temperature. Post up what that number is and we'll go from there. I'll wager 3 whopping pennies, cuz that's all I can afford in this robust economy, that your coil will show @ 1.5 ohm +/- .2. Wanna get in on that action?
 
Whoo doggies I'm Rich...Rich I tell ya! I can buy my way out of most anything now! Back on topic, did you retain your old ballast resistor or crap can it? If you still have it, test the resistance of it with no wires attached. If it tests in the 1.6 - 2.0 ohm range, hook 'er back up and you should be good to go. If not, you need to source one that is in that range. Take your dvom with you to the parts house for testing if'n ya need to buy new.
 
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