I suspect that is an old list of apps? I spoke with Pertronix tech on the phone and they no longer allow anything but a 2.8 or 3 ohm coil to be used with the standard Ignitor system or warranty is void. That is - unless a resistor is used to make the total primary resistance 3 ohms. I asked about what happens in a crank/bypass system that makes it 1.5 ohms when cranking. I did not get a clear answer.
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Today's Featured Article - 12-Volt Conversions for 4-Cylinder Ford 2000 & 4000 Tractors - by Tommy Duvall. After two summers of having to park my old 1964 model 4000 gas 4 cyl. on a hill just in case the 6 volt system, for whatever reason, would not crank her, I decided to try the 12 volt conversion. After some research of convert or not, I decided to go ahead, the main reason being that this tractor was a working tractor, not a show tractor (yet). I did keep everything I replaced for the day I do want to restore her to showroom condition.
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1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
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