Thats the same as the old farmers trick (when plugs are fouling) of pulling the plug wire off but leaving it maybe 1/4 away from the plug end. When the coil stores energy its X joules finite amount which gets expended in the form of Volts x Amps x Time when the plug fires. THEREFORE if the voltage is increased (wider gap) the current or arc duration is less, thats why the spark will change from a thick blue to a faint thin wimpy yellow. The wider gap causes the coil voltage to have to rise higher perhaps causing it to run tad hotter, work harder, and maybe at less efficieny overall but it can cause a fouling plug to start firing again. Looks to me like its a choice between changing plugs or curing the fouling (rings, valve guides etc) or running a wider gap (may or may not reduce coil life) ???
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Today's Featured Article - My Ford Golden Jubilee - by Troy Estes. This article is about my '53 Ford Jubilee and a story that starts with taking the tractor to my brother's Starter/Alternator Rebuilding shop for a wiring fix. The generator was shot as well as all the wiring. I dropped off the tractor expecting a transformation from a 6 volt to a 12 volt system utilizing the original generator housing, and a total rewiring of the whole tractor. The front end center pin bushing was worn also so I ask that they replace it if they had time. Well, that’s wha
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