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Alternator Wiring

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  • Alternator Wiring

    I am attempting to install a MOPAR type alternator in place of the Prestolite on my '64 Daytona. The new alternator has two "FIELD" terminals that appear to be connected to the two brushes, respectively. It would appear that one of these terminals should be connected to my "FIELD" wire, and the other connected to ground.

    I would assume that it makes a difference which terminal is connected to the "FIELD" wire and which is grounded. But, which one? One "FIELD" terminal is near the "BAT" connection, and the other is about 90 degrees CCW as viewed from the rear. Anybody BTDT? I don't want any of the smoke to escape.

  • #2
    I am not shure which year or type you have if you take an ohmmeter and measure between the 2 field posts you get the field resistance readings, should be between 2.5 to 250 ohms. Some years had field load relay in there too, so unless I know what year and case type it is I couldn't tell you for certain but they go to the ingition terminal on the regulator and field terminal on the regulator.


    • #3
      Riverside, Ca.
      1957 Provincial X2
      1958 Transtar