Steffen707,
Good testing. Thanks for doing all that and writing it up.
Re. your note below - -
Quote:
Originally Posted by steffen707
... Even if you disconnect the 4 pin plug and disconnect the main charging wire from the alternator to battery, that stupid yellow/black wire still gets electricity and I'm guessing that its still forcing the alternator to charge, even though the electricity isn't going anywhere because you disconnected the main charging wire ....
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Please google "Single wire alternator" or take a look at this
Summit Racing results page.
Only one wire is needed for an alternator. One.
You have to remember that the mechanical load of an alternator (or generator) is basically proportional to the amount of power being use at the alternator's output. If there's zero output, the alt's mechanical load on the engine will be very low indeed, just bearings and belt flex resistance etc. Now, for two examples of the same alternator, running at the same (say) 3000 rpm. One running a little cluster illumination bulb, the other running headlights plus a bank of off-road illumination bulbs plus a monster stereo. The fuel needed to run the first alt will be a lot less than the fuel needed to run the second one.
What allows the alt to get going?? I'm still convinced it's just a property of spinning magnets and stationary wire coils. Spinning fast enough and long enough, the system will set up a magnetic field and eventually will start outputting some voltage. The yellow-black wire is just an "exciter" wire, to get that going immediately. That's all.