300 cut off raking

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Va Gasman

Member
This new to me 300 has only 4 hours on it since I put in new plugs, points, wires rotor. Has Ran perfect. But today I put it to work raking. first time it has run this long with out stopping. After 45 minutes in 90 degree temp it starts missing. I stop look at points setting and they look good. Starts right up and then 10 minutes later starts missing again and cuts clear off. won't start.
Come back 30 minutes later starts right up. I parked it. It has been converted to 12v and the coil is so hot you can't touch it. Is this the culprit or do I look at points and condensor?
Randy
 
It needs either a ballast resistor in the coil feed from the key, or a 12volt coil designed to work with no resistor. The coil is possibly toast. A mid 1960s Chevrolet ballast resistor will do the deed. Jim
 
Your NAPA store should have this 12 volt coil that doesn't require a ballast resistor. Hal

IC14SB
 
It is too late for a ballast resistor at this point. The coil is already ruined, and will never be reliable. Replace it with a true 12V coil (marked "no ballast resistor required") and be done with it.
 

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