Electrical what is this?

Discussion in 'Classic Mustang Specific Tech' started by craig3x, Dec 11, 2012.


  1. craig3x

    craig3x New Member

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    hey guys....I'm fairly new to the classic mustangs. I found this box under the hood on the drivers side up near the front. What is it, and what is that wire that is clipped?
    [​IMG]
     
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  2. horse sence

    horse sence Please don't call me Mom
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    voltage regulator. not sure about the wire but probably the radio noise suppressor.
    what year is the car?
     
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  3. craig3x

    craig3x New Member

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    voltage regulator? The car has a newer style alternator. 1965
     
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  4. horse sence

    horse sence Please don't call me Mom
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    if its a single wire alternator then the voltage regulator is not in use.
     
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  5. bartl

    bartl Member

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    That's your basic voltage regulator. Yes, alternators use VR's too either external like this one, or internal if it's a newer model alternator. The wire that is clipped is for the VR's condensor. It is needed on mechanical VR's to absorb the excess current when the contact points on the relays open and close.
     
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  6. craig3x

    craig3x New Member

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    what is a mechanical voltage regulator? Do I apparently not have one? Everything seems to be working fine
     
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  7. bartl

    bartl Member

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    Mechanical VR's use electromagnets and contact points to regulate the signal to the field windings of the alternator. Newer "electronic" VR's are solid state.
     
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