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Thread: Mallory Dual Point - Input Voltage??

  1. #1
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    Mallory Dual Point - Input Voltage??

    This 55 Tbird I'm working on measures 6 volts going to the coil. Sound correct?? It tries to start..... It has been converted to 12v at some point in its life.

    Coil resistance?? Can the capacitor be measured??

    I plan to install a HEI type distributor, maybe sooner than later!!

  2. #2
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    Quote Originally Posted by Thomas C Potter View Post
    This 55 Tbird I'm working on measures 6 volts going to the coil. Sound correct?? It tries to start..... It has been converted to 12v at some point in its life.

    Coil resistance?? Can the capacitor be measured??

    I plan to install a HEI type distributor, maybe sooner than later!!
    Cars changed from 6v to 12v in 1955 so you could have either.

    The 6v at the coil - is it at crank or run?

    WLB
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  3. #3
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    run was converted to 12v for sure

  4. #4
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    Should be 12v in crank & around 8v in run as the run circuit is resisted.

    WLB
    BB#1) 1996 ImpalaSS - 16,500 miles - 100% stock
    ______________________________ ___________

    BB#2) 2003 Marauder (300a) - 34k miles - Daily Driver
    #2912 of 7093
    Conceived 8/6/2002
    Delivered 9/19/2002
    Adopted 8/10/2011
    Trilogy 242 - Self Installed 9/9/12 (0-60 5.5 sec)
    Pioneer 6x8 Front
    Legacy 600w 6x9 Rears
    JL 6.5 SubWoofer
    K&N CAI
    Window tint 50% rear/35% front
    FBM CHMSL with Strobe mod 7/1/12
    DR Deep Aluminum Trans Pan
    Sparta FOMOCO Racing 8.8 Girdle
    Mo's Dyno Tune
    Gorilla Nuts - The System
    Ford Racing 4.10s, 31 spline Cobra carrier & axles 7/1/12
    Powder Coat Axle Housing 7/1/12
    CME HP Rear Control Arms & Watts Link 7/1/12
    ______________________________ ________________

    Rex "SC Cheesehead" Weinbender 11-14-13
    Ed "Baaad GN" Linthicum 8-6-2014

  5. #5
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    Thnx I was thinking 6v was to low.

  6. #6
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    Was your 6v reading with engine running or off?

    Does the battery have 3 cells or 6?

    WLB
    BB#1) 1996 ImpalaSS - 16,500 miles - 100% stock
    ______________________________ ___________

    BB#2) 2003 Marauder (300a) - 34k miles - Daily Driver
    #2912 of 7093
    Conceived 8/6/2002
    Delivered 9/19/2002
    Adopted 8/10/2011
    Trilogy 242 - Self Installed 9/9/12 (0-60 5.5 sec)
    Pioneer 6x8 Front
    Legacy 600w 6x9 Rears
    JL 6.5 SubWoofer
    K&N CAI
    Window tint 50% rear/35% front
    FBM CHMSL with Strobe mod 7/1/12
    DR Deep Aluminum Trans Pan
    Sparta FOMOCO Racing 8.8 Girdle
    Mo's Dyno Tune
    Gorilla Nuts - The System
    Ford Racing 4.10s, 31 spline Cobra carrier & axles 7/1/12
    Powder Coat Axle Housing 7/1/12
    CME HP Rear Control Arms & Watts Link 7/1/12
    ______________________________ ________________

    Rex "SC Cheesehead" Weinbender 11-14-13
    Ed "Baaad GN" Linthicum 8-6-2014

  7. #7
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    Quote Originally Posted by Thomas C Potter View Post
    This 55 Tbird I'm working on measures 6 volts going to the coil. Sound correct?? It tries to start..... It has been converted to 12v at some point in its life.

    Coil resistance?? Can the capacitor be measured??

    I plan to install a HEI type distributor, maybe sooner than later!!
    Grainger does sell a audible capacitor tester, i have it and it works great.
    The non hei will have a resistor cutting voltage down to 8 volts since the car has a 12 volt system.
    Clean the points and set them, it might just be no fuel, gummed up. Heck, maybe out of gasoline too.
    The twins2.3 whipple/aluminatorVortech V-2 lots of goodies

    04 DTR totaled, might make into a station wagon Here is how bad it was https://youtu.be/REUxjP1BVpg

    04 Whipple SILVER BIRCH
    03 Silver Birch Light Flint <--- Cannot kill it.
    03 C.V. Sport SILVER FROST daily beater
    04 Heaton Swapped DTR
    Joe's Wrecked DTR rebuild thread

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