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Ford 9N, 2N & 8N Discussion Board

Re: '43 9N Ignition coil resistor


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Posted by Paul M. La Fave on October 01, 2004 at 14:15:20 from (68.219.122.253):

In Reply to: '43 9N Ignition coil resistor posted by Herb on May 31, 2001 at 13:13:41:

I always thought that resistor was in place to reduce the spark coil input voltage during normal run time. The resistor was switched Out of the CKT during START so the Coil would have Maximum Spark at Start when it really needed it. The resistor was switched back in the coil ckt after the Key switch was released from the spring loaded Start Engine Position. If the resistor burnt open the symptom would be Engine starts but dies as soon as the start key is released.


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