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  •  » Duraspark II

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    8/04/2018 9:22 PM  #1

    Steve69
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    From: Madison Wisconsin
    Registered: 4/01/2013
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    Duraspark II

    Hey Guys,  

    Looking at installing a Duraspark II ignition in my son's 68 Mustang with 1995 351 Roller engine.   I was looking at MS diagram for the Blue Duraspark II Diagram and his is the Blue Grommet  DY184.  My Question is What year Distributor and truck will I need to order to get the Blue Grommet Duraspark II Ignition and Distributor that will work with 351W?  Ill have to change the distributor gear to a steal gear too.  Thanks Guys! 

    Steve69

    Last edited by Steve69 (8/04/2018 9:23 PM)

     

    8/05/2018 6:11 AM  #2

    Steve69
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    Re: Duraspark II

    I also forgot to add that when we bought the 68 a  year ago it had a 250 6 cylinder engine.  Someone had already converted it to a Duraspark.  But Im sure that would fire for a 6 cylinder engine not a 351.  Thanks Steve69

    Last edited by Steve69 (8/05/2018 6:13 AM)

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    8/05/2018 6:26 AM  #3

    John Ha
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    From: Mitchell, SD
    Registered: 4/02/2013
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    Re: Duraspark II

    Distributor and control module for 75-77 Granada or Monarch with the 5.8 engine.  Whether you have to change the distributor gear depends on whether you have a roller lifter camshaft.

    Founding Member of the Perpetually Bewildered Society
     

    8/05/2018 1:39 PM  #4

    Steve69
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    Re: Duraspark II

    Thanks John Ha for getting pointed in the right direction! 

    Steve69

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    8/05/2018 4:22 PM  #5

    TimC
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    From: Wheaton, Illinois
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    Re: Duraspark II

    This would be the perfect time to change the advance springs in the dizzy, and modify the reluctor arm to dial in the advance.  You'll need to get a timing tape for the harmonic balancer.

    Does the current duraspark box have a blue grommet?  You may want to use rockauto's website to see if it calls for different duraspark boxes for I6 & V8

    Last edited by TimC (8/05/2018 4:25 PM)

     

    8/05/2018 5:55 PM  #6

    John Ha
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    Re: Duraspark II

    TimC wrote:

    Does the current duraspark box have a blue grommet?  You may want to use rockauto's website to see if it calls for different duraspark boxes for I6 & V8

    There are different part numbers for the 250 and 351 control modules.  I have to think that the 250 module will work in a pinch since everything else is the same except for the number of cylinders, which would increase the number of pulses over time needed at the coil for the V8

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    8/05/2018 9:22 PM  #7

    Steve69
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    Re: Duraspark II

    TimC wrote:

    This would be the perfect time to change the advance springs in the dizzy, and modify the reluctor arm to dial in the advance.  You'll need to get a timing tape for the harmonic balancer.

    Does the current duraspark box have a blue grommet?  You may want to use rockauto's website to see if it calls for different duraspark boxes for I6 & V8

       Ill be dam!  the I6 is the same part # as the v8!  Maybe the box we have will work!  Ill have to check the color on the box we have.  Ill have to check youtube for a video on changing out the springs and modifying the reluctor arm. 
     

    Last edited by Steve69 (8/05/2018 9:24 PM)

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    8/05/2018 9:45 PM  #8

    Steve69
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    Re: Duraspark II

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    8/06/2018 10:24 AM  #9

    TimC
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    Re: Duraspark II

    http://fyi.boardhost.com/viewtopic.php?id=5606

    the modmotortech link is especially helpful.

    Get yourself the 351W dizzy, swap gears from the dizzy you took out of the EFI 5.8, and use the DS harness and coil that was in the 68 I6 and give it a shot.

    Last edited by TimC (8/06/2018 10:30 AM)

     

    8/07/2018 7:47 AM  #10

    Steve69
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    Re: Duraspark II

    TimC wrote:

    http://fyi.boardhost.com/viewtopic.php?id=5606

    the modmotortech link is especially helpful.

    Get yourself the 351W dizzy, swap gears from the dizzy you took out of the EFI 5.8, and use the DS harness and coil that was in the 68 I6 and give it a shot.

         I found a Distributor on Ebay that had the steel gear on it.   Heard it was a PIA getting the gear on the Distributor.  Thanks for the help and the link! 
     

    Last edited by Steve69 (8/07/2018 7:52 AM)

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    8/07/2018 8:23 AM  #11

    MS
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    From: Canyon Lake, Texas
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    Re: Duraspark II

    Tip:
    Put masking tape around the shaft to act as a stop when installing the new gear. Heat the gear. Freeze the distributor. The gear will slide right on. Be sure you have the hole in the gear 90 degrees from the hole in the shaft.  Without the tape, the gear will go too far and then freeze in place. Drill the new hole through the shaft by drilling through the hole in the gear.

    Some gears will slide right on without heating. You are better off if it is a press fit.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    8/08/2018 5:19 AM  #12

    Steve69
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    Re: Duraspark II

    MS wrote:

    Tip:
    Put masking tape around the shaft to act as a stop when installing the new gear. Heat the gear. Freeze the distributor. The gear will slide right on. Be sure you have the hole in the gear 90 degrees from the hole in the shaft. Without the tape, the gear will go too far and then freeze in place. Drill the new hole through the shaft by drilling through the hole in the gear.

    Some gears will slide right on without heating. You are better off if it is a press fit.

      These are some great tips MS.  I did buy a Distributor on Ebay with a steel gear.  Since the Duraspark Distributors are less expensive I wanted to buy a steel gear and install it on the Distributor and have one ready to go for a back up.  So I take it the holes must not be the same size for the bushing to fit if I have to drill a new one for the distributor and gear?   Thanks Steve69
     

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    8/09/2018 8:15 AM  #13

    MS
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    From: Canyon Lake, Texas
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    Re: Duraspark II

    It is impossible to get the holes in a replacement gear to align with the original holes in the shaft. They were drilled after installing the gear.

    As for the blue strain relief control modules, they were identical for four, six or eight cylinder engines.  There is a company that sells replacement plugs to go into the wiring harness. Can’t remember their name!

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    8/09/2018 8:29 PM  #14

    Steve69
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    Re: Duraspark II

    MS wrote:

    It is impossible to get the holes in a replacement gear to align with the original holes in the shaft. They were drilled after installing the gear.

    As for the blue strain relief control modules, they were identical for four, six or eight cylinder engines. There is a company that sells replacement plugs to go into the wiring harness. Can’t remember their name!

      Thanks for the info MS!
     

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