Simple duraspark II Question...

Discussion in 'Technical' started by mark_b, Nov 24, 2002.

  1. mark_b

    mark_b Member

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    73 all original 302 2d red blk int. 72,302.2dr. green and 71 200ci. 2d green
    The 2 wires coming from the module


    1. red ===== goes to Start.


    2. white====== goes to run.


    The red wire gets juice in the start position of the ignition key. Question is this, Should the red wire also have juice in the run position???

    experienced replies greatly appreciated!


    Thanks!!! Mark
     
  2. Mavericknutt

    Mavericknutt member

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    nope just the white wire. that is how they are from the factory.
     
  3. K. Merring

    K. Merring Regular

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    Yes. You will see it as a back feed. During starting, the module and coil gets full 12 volts. In run position there is a resistor in series with the white lead.
    The last time I run this system, I combined the red and the white leads. This allows full 12 volts to the system at all times giving a hotter spark. I ran it that way and had no failure of either the coil or the module due to heat in the engine bay. That is not to say that if someone else does it, they won't have a failure.
    To see the layout of these ignition systems see the Chilton book on 71-85 mid size cars, pages 47 and 48.
     
  4. K. Merring

    K. Merring Regular

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    Normally in the run position, the red lead is open and only connected to the module so if you check it in that condition you can see voltage coming from the module if that is what you mean.
     
  5. mark_b

    mark_b Member

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    73 all original 302 2d red blk int. 72,302.2dr. green and 71 200ci. 2d green
    Got that baby working! The 2 wires I used coming from the fire wall were the two red ones...One had a blue stripe and one had a green stripe. Fired right up! The duraspark works GREAT!

    I did have a problem setting the dist. in the right position. The dang thing just would not engage in the proper position to get the timming set right. This is a problem I have had in the past and could not figure it out. Well, this time I took a shaft I made from an old dist. That I used for priming the oil pump. I used it to turn the oil pump drive shaft about an 1/8 of a turn. Then the dist. slipped right in!!! YaaHoo!

    Scarry thing happened though...When I pulled the old points dist out to replace it with the duraspark one, 1(one) gear tooth was broken off! Three others in line with the broken one showed signs of cracking! ( This was an old used points dist.)
    This is a brand new cam shaft, HV oil pump and a fresh rebuild. The oil preasure @2000 rpm's is about 75 psi and 35 @ idle.
    I wonder If the cam shaft gear is ok? The car never skipped time, It ran fine! Just had a broken tooth on the old dist.
    I have on order, a brand new duraspark dist to put in tomorrow with a NEW gear!


    What are the odds of the cam gear being damaged??? Ya think using a new dist. with a new gear on it will be ok?

    Thanks all!
    Mark (Nervous) B
     

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