Another thought: As an engineer and electronic hobbyist of over 50 years I've owned several ohm meters and found some cheapies aren't all that accurate at the low ohms range!!! Regardless and speaking in general, however, those 7 to 10 ohms readings ARE NOT in line with the more typical 2 to 4 ohms in old stock farm tractor 12 volt coils. They may be in the range for more modern automotive or pulse fired or elec ignition or high energy ignitions, hard to say from here.
PS youre talking about the LV Primary resistances right??? That's what my discussion below was referring to
CHECK YOUR METER AND FINALY HEY JUST TRY THE COILS OUT its hard to sit here and know the answer.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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