Re: one wire alternator
Most one wire alternators are converted GM units. They rely on residual magnetism in the rotor to turn on. Revving the engine will often turn them on, and charging is usually weak until the engine revs up. Usually there is a tab on the back of the unit that, when grounded, will kick the unit on. My '47 has a button under the dash connected to that terminal that will wake up a lazy unit. Alternators in modern cars are turned at a higher rate than most older vehicles can. That is why a smaller pulley can help a bit
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