Actually, the "COIL" may or may NOT be a fable, it may well have the capability to achieve 40,000 volts on its HV terminal, but youre right, most old tractors probably fire the plugs at more like 10,000 to under 20,000 volts. I guess its safe to say firing of the plugs at 40,000 volts in low compression gasoline tractor engines with plug gaps in the 0.020 to 0.040 range IS INDEED LIKELY A FABLE LOL
The actual voltage necessary to cause current to arc jump across a spark plug gap depends on THE PLUG GAP,,,,,,,,,THE COMPRESSION,,,,,,,THE MEDIUM (fuel type and mixture) IN WHICH THE ARC OCCURS and we dont have that info in front of us.
Yep the HV in those old cathode ray tv tubes could really cause some poppin n crackin n snappin OUCH LOL
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Today's Featured Article - Tractor Traction - by Chris Pratt. Our first bout with traction problems came when cultivatin with our Massey-Harris Pony. Up till then, this tractor had been running a corn grinder and pulling a trailer. It had new unfilled rear tires and no wheel weights. The garden was already sprouting when we hooked up the mid-mount shovel cultivators to the Pony. The seed bed was soft enough that the rear end would spin and slowly work its way to the downhill side of the gardens slight incline. From this, we learned our lesson sinc
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