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Electrical Overcharge with '63 Hwk

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  • Electrical: Electrical Overcharge with '63 Hwk

    The '63 hawk has not had any electrical changes in over three years, but has started overcharging (per the ammeter) at ant RPM above idle. The Shop Manual offers diagnostics for low or no charge - Could not find anything for overcharge.
    Have checked all connections (cleaned and tightened) - All seems OK mechanically.
    Any suggestions for further checks before buying replacement parts trial and error style?
    Thanks in advance, Paul TK

  • #2
    An overcharge condition is usually caused by a faulty voltage regulator. It's the little rectangle black box on the drivers side fender. These are solid state and the same type used by Chrysler in the 60's. They are easy to get and inexpensive.

    Joe
    sigpic

    1962 Daytona
    1964 Cruiser
    And a few others

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    • #3
      Try tapping the voltage regulator and /or remove the cover and see the solenoids are
      working and points are clean. Is the battery old? Maybe a bad cell and the poor alternator is trying
      to compensate for low voltage. Check battery voltage. My guess is you need to replace one or the
      other.
      Dick Curtis
      The 1950 Champion Starlight
      Santa Barbara
      CA

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      • #4
        Originally posted by starlightchamp View Post
        Try tapping the voltage regulator and /or remove the cover and see the solenoids are
        working and points are clean. Is the battery old? Maybe a bad cell and the poor alternator is trying
        to compensate for low voltage. Check battery voltage. My guess is you need to replace one or the
        other.
        Dick Curtis
        The 63 Hawk has a solid-state regulator.
        sigpic

        1962 Daytona
        1964 Cruiser
        And a few others

        Comment


        • #5
          Thanks for the tips.
          The battery is in great shape (voltage and spec gravity). The movable points are free and operating (as they have for the past eight years that I have had the car). The regulator seams to be electo-mech - not solid state.
          The ammeter shows approx 20 A charge immediately after start which goes down to 10 -12 A within a few seconds - However, the charge never drops any lower as it has in the past.

          Would a solid state regulator work as a replacement?

          Thanks again, Paul TK

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