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Re: Ignition Coil Primary Wiring Polarity
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Posted by Jon H on January 29, 2003 at 13:43:24 from (63.160.195.121):
In Reply to: Ignition Coil Primary Wiring Polarity posted by Mike B on January 29, 2003 at 13:03:05:
Neg ground system,connect neg coil post to ground through the distributor. Pos ground system,pos coil terminal to ground through the distributor.
Thing is that it is much easier for a spark to jump from a hot contact(center plug electrode) to a cool contact (side plug electrode). This effect is so pronounced that it is why a radio tube works as a rectifier,allowing an easy flow in one direction and very hard in the other. This same effect was used in the old Tungar bulb battery chargers. If coil polarity is reversed you need much higher voltage to jump the gap in a warm plug.
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