How far shot is your field resistor? The one on my BN wasn't working. With it in place, I had no continuity across the hollow rivets that anchor it. I cleaned it up with electrical cleaner and a SOFT brush. (The core of it may look like mica, which would be brittle, but it's actually a flexible, fiber strip.) Looking, poking and testing some more, I got good continuity when checking between the very ends of the winding, but still none when checking with the probes on the terminals, as if the windings weren't connecting well to the rivets. A little more cleaning and a touch of solder at each end, where the winding goes under the rivet and voila, a functioning resistor.
Did I mention the smoke? Despite all the cleaning, the first time that resistor heated up, I thought I was going to smoke everything in the box! It was fine, though. The smoke subsided when I switched to high charge, and came back on L when I switched the resistor into the circuit. Letting it cool in between, I ran it maybe three cycles of five minutes each before it burned off the residual crud. I did pull the face of the panel afterward and used some low pressure air to blow away any dust or ash, and it's been working fine since.
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Today's Featured Article - The Fordson F Ignition System - by Anthony West. A fellow restorer contacted me earlier this year asking for some help and advice on a model F that he was restoring. He had over a period of months spent a fair amount of his hard earned cash on replacement parts for the old "trembler" ignition. Sadly though all his efforts seemed to be a waste of time and money as he still couldn''t get the temperamental old thing to run correctly!! If i said that this was a little frustrating for him that would be "conservative" in fact the problem had reduce
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