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Thread: hot rod wiring
          
   
   

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  1. #1
    surfgeezer is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 31 ford hiboy rdstr
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    hot rod wiring

     



    I have a flatmotor 31 hiboy with 12 volt system utilizing GM internal regulator alternator, ford solenoid, and GM style ignition switch. With the ignition off (or just no key in) when the battery cutoff switch is turned on the volt meter starts to read.

    I have one wire coming off the alternator going directly to the battery post on the solenoid. One wire from this same post going to the BATT post on the ignition switch. One wire from this same BATT post to the voltmeter. My coil wire comes through a ballast resistor to the IGN post on the ignition switch.

    Can someone give me a clue as to what might be going on...thanks

  2. #2
    MrMopar64's Avatar
    MrMopar64 is offline CHR Member Visit my Photo Gallery
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    The hot wire to the volt meter needs to go through the ing switch so that when the switch is off there is no power to the volt meter unlike an amp meter which has power all the time

    MM64
    "LIFE IS NOT A JOURNEY TO THE GRAVE WITH THE INTENTION OF ARRIVING SAFELY IN A PRETTY AND WELL PRESERVED BODY,

    BUT RATHER TO SKID IN BROADSIDE,
    THOROUGHLY USED UP, TOTALLY WORN OUT, AND LOUDLY PROCLAIMING:
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  3. #3
    surfgeezer is offline CHR Member Visit my Photo Gallery
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    Smile

     



    Many thanks...the meter now reads like it should. I think I still have some grounds to fix, but that is for another day...

  4. #4
    lt1s10's Avatar
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    the way i read it is,you have the volt meter hot with bat. cut off switch on and it shouldnt be hot until the ign. switch is cut on. the volt meter runs parallel to the bat. and the amp. meter runs in series. how many wires do you have on the alt?
    Mike
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  5. #5
    surfgeezer is offline CHR Member Visit my Photo Gallery
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    There is one wire coming off the alternator. It goes to the solenoid post with the main battery cable. A wire comes off the BATT post on the ignition to that same post on the solenoid.

  6. #6
    lt1s10's Avatar
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    Originally posted by surfgeezer
    There is one wire coming off the alternator. It goes to the solenoid post with the main battery cable. A wire comes off the BATT post on the ignition to that same post on the solenoid.
    the 12v hot all the time wire you have now is ok but youll need to run another one from the big post on the back of the alt to the plug on top of the alt marked B
    Mike
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  7. #7
    MrMopar64's Avatar
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    Originally posted by lt1s10
    the 12v hot all the time wire you have now is ok but youll need to run another one from the big post on the back of the alt to the plug on top of the alt marked B
    Except on the GM one wire alt......... Thats what I put on mine and it dosen't have the the plug on the top with the 2 small posts


    MM64
    "LIFE IS NOT A JOURNEY TO THE GRAVE WITH THE INTENTION OF ARRIVING SAFELY IN A PRETTY AND WELL PRESERVED BODY,

    BUT RATHER TO SKID IN BROADSIDE,
    THOROUGHLY USED UP, TOTALLY WORN OUT, AND LOUDLY PROCLAIMING:
    WOW.... WHAT A RIDE !!!"

  8. #8
    lt1s10's Avatar
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    Originally posted by MrMopar64
    Except on the GM one wire alt......... Thats what I put on mine and it dosen't have the the plug on the top with the 2 small posts


    MM64
    THANKS mopar, like always should have asked before speaking
    Mike
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  9. #9
    MrMopar64's Avatar
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    Originally posted by lt1s10
    THANKS mopar, like always should have asked before speaking
    I have done what you talked about on the older ones..... but the new one I bought is done on the inside...... I guess

    MM64
    "LIFE IS NOT A JOURNEY TO THE GRAVE WITH THE INTENTION OF ARRIVING SAFELY IN A PRETTY AND WELL PRESERVED BODY,

    BUT RATHER TO SKID IN BROADSIDE,
    THOROUGHLY USED UP, TOTALLY WORN OUT, AND LOUDLY PROCLAIMING:
    WOW.... WHAT A RIDE !!!"

  10. #10
    surfgeezer is offline CHR Member Visit my Photo Gallery
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    Thank you both very much. I have made the changes you suggested and things seem to be working OK. I also discovered the volt gauge was not grounded.

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