|
Dirk..... ...I quote for a 3rd time..... . "you will need a 1/2 ohm 10 watt current limiting resistor to keep from melting the ignition coil and shorting. THIS IS THE SECRET of a successful 12 volt frontmount conversion" ..... .. And the real reason if you really gotta know, the 12 volt frontmount coil was designed for 13.5 volts MAX and a 12 volt alternator puts out about 14.7 volts to charge the 12 volt battery. And since a 12 volt battery at rest (meaning not being externally charged from alternator) is actually about 12.6 volts. And if you don't understand why a 6 volt battery is actually 12.6 volts and why it takes about 14.7 volts to charge it, That is all covered in Battery Theory 101, chemical reactions. And do you know why 14.7 volt is bad for a 13.5 volt coil, its because OHMS LAW sez so. Meaning if the coil resistance stays the same (and it does) then when the volts go up (14.7) the AMPS must also go up. AMPS generate HEAT. TOO MUCH HEAT melts the insulative tar and shorts out the primary coil turns and guess what? NO SPARKIES. And if you don't want to believe me or don't want to understand electrical theory, I've gone as far as I care to go in trying to eduicate the electrical challenged..... .....respectfully, Dell Dirk..... ....If you're converting a square frontmount ignition N-Tractor to 12 volts with a square 12 volt replacement ignition coil, you will need a 1/2 ohm 10 watt current limiting resistor to keep from melting the ignition coil and shorting. THIS IS THE SECRET of a successful 12 volt frontmount conversion. The required resistor in not available from tractor parts stores. Get it from Radio Shack. ..... .....Dell
| 
