If it is a one wire style alternator it will not allow the exciter current to start it operating. If it is a three wire delco, The #2 terminal connects to the big output terminal directly. The #1 terminal connects to the ignition switch terminal going to the coil. (assumes a distributor, not mag) In this wire place a diode with the flow of the diode going toward the alt, and the block direction going toward the switch (band on the end toward alt.) Should be a 3+ amp diode with 1000PIV rating. A alternator diode from the diode pack will also work. Be sure the coil is wired seperately and the diode is in only the wire to the #1 terminal. JimN
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Today's Featured Article - The David Brown Rose Badge - by Samuel Kennedy. In the 13th century civil war was raging in England. Two English noblemen were involved in a conflict which became known as the War of the Roses. The Duke of York had as his emblem a white rose and the Earl of Lancaster had a red rose. Today the white rose is the official emblem of the county of Yorkshire and the red rose has been adopted by the neighboring county of Lancashire.
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