Posted by John T on July 03, 2015 at 05:55:45 from (216.249.74.3):
For those who may be "electrically challenged" I found a couple articles that go into more depth and explain why battery powered ignition coil polarity DOES MAKE A DIFFERENCE and might explain why the coil designer and manufacturer places those + and - labels on coil terminals. The topic concerned battery powered coil distributor ignition as I understood it and NOT Magnetos which, unfortunately, if they produce a spark each 180 or magnetic rotor rotation, operate on different polarities since the North and then South magnets pass by the coil and induce voltage therein. THAT BELOW CONCERNS WIRING AND POLARITY OF BATTERY POWERED STAND ALONE COILS, NOT MAGNETOS.
As the old saying goes "People are entitled to their own opinions, but NOT their own facts" lol and as far as I'm concerned, a person can wire his ignition coil any way he pleases, its his tractor and his choice, you get no argument from me, take it up with the authors of the articles, I'm only the messenger. That being said and based on my own experience and knowledge (past used tractor dealer and retired electrical engineer) I choose to wire my ignition coils at their correct labeled polarity BUT OTHERS MAY CHOOSE TO WIRE THEM AT OPPOSITE POLARITY AND THATS FINE WITH ME, TAKE UP YOUR ARGUMENTS WITH THE AUTHORS OF THE ARTICLES IF YOU THINK THEY ARE WRONG. I'm not here to defend them or disagree with them, I make my own choices as I understand the electrical considerations, even if it happens to agree (as here) or disagree with the articles. I've never seen an article that suggests you should wire a coil OPPOSITE from its labeled polarity?????
Best wishes yall, hope these articles help explain to non electrical gents why ignition coil polarity DOES MAKE A DIFFERENCE, but again, do as you please, that's what I do and yall should do the same.
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