I Can Feel Gasoline Engines Firing?
So now that it is summer again, I have started landscaping. Today I was using a hand held gasoline blower and I noticed I could feel the engine firing from about 7 inches away. I instantly went and started up the truck, popped the hood, and stuck my hand in. At first I couldn't feel anything, but when I moved my hand over the pistons I could feel each individual piston firing. I was wondering if anyone knew why? I mean engines aren't run on electricity...maybe its just from the metal in the piston moving up and down? I honestly have no idea. If anyone knows and could tell me that would be awesome. Also, are there any other cool things anyone has figured out they could feel through their magnets?
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Spark plugs run on about 30,000V (average figure, can vary either way). If you're able to find the coil feeding the lead to the distributor, you'll feel the same thing, as that's where the voltage is multiplied through mutual induction. If it doesn't have leads going to the spark plugs (it just has some plugs with connectors on it that press onto the spark plug), then that voltage multiplication is happening right there at the spark plug, so if you could count the pulses, you could theoretically figure out the rpm of the engine (that's over 100 pulses per second though, so good luck. Haha).
Also, sometimes the injectors run a high amperage, depending on what type they are, but not high enough to feel, I don't think.