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Ignition System on F-head

Discussion in 'Flat Fender Tech' started by unelemented, Oct 1, 2007.

  1. Oct 1, 2007
    unelemented

    unelemented Member

    New Zealand
    Joined:
    Jun 21, 2007
    Messages:
    77
    Im having the problem of trying to fire up my jeep but I no spark
    I think Ive put the ground wire from the coil in wrong cause Ive tried 2 different coils 2 diferent sets of leads replaced the plugs and all the dizzy internals and cap but no spark
    Ive seen on the 3B website it says to hook it up to the dizzy but there are no details into were to put it and of all the photos no ones showing it

    Heres a photo of the dizzy
    [​IMG]
    Theres a screw on the top and bottom and the bottom screw has a wire running into the dizzy
     
    unelemented, Oct 1, 2007
    #1
  2. Oct 1, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    (-) wire goes to the screw that connects to the points inside the dist.

    I've not seen one like that so I won't be more specific but hope that helps some.
     
    sparky, Oct 1, 2007
    #2
  3. Oct 1, 2007
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
    Joined:
    Jul 30, 2003
    Messages:
    8,526
    back to basics
    are the points opening while cranking ?
     
    jpflat2a, Oct 1, 2007
    #3
  4. Oct 1, 2007
    unelemented

    unelemented Member

    New Zealand
    Joined:
    Jun 21, 2007
    Messages:
    77
    yeah they are
    Ill have to see bout the coil lead tomorrow cause its raining and the truck lives out side
     
    unelemented, Oct 1, 2007
    #4
  5. Oct 3, 2007
    unelemented

    unelemented Member

    New Zealand
    Joined:
    Jun 21, 2007
    Messages:
    77
    Just tried the coil lead to the dizzy and theres still no spark
    Any other ideas???
     
    unelemented, Oct 3, 2007
    #5
  6. Oct 4, 2007
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,390
    X 2. Looks to me like it's hooked to the distributor body. :?
     
    Glenn, Oct 4, 2007
    #6
  7. Oct 4, 2007
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,390
    can you post another pic of how you have it hooked up now? Ignition switch bad maybe?
     
    Glenn, Oct 4, 2007
    #7
  8. Oct 6, 2007
    unelemented

    unelemented Member

    New Zealand
    Joined:
    Jun 21, 2007
    Messages:
    77
    Here are the new pics
    [​IMG][​IMG]
    [​IMG][​IMG]
    [​IMG][​IMG]
    [​IMG][​IMG][​IMG][​IMG][​IMG][​IMG]
    Theres 12 volts across the coil when I put the multimeter across it

    If the pics dont work click on the CJ4 pics link in my signature
    the pics are called
    coverdizzy
    bottomdizzy
    & opendizzy
     
    Last edited: Oct 6, 2007
    unelemented, Oct 6, 2007
    #8
  9. Oct 6, 2007
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,390
    In your original picture you say the wire hooked to the bottom screw runs into the distributor. Is that the wire from the coil? If so that needs to be hooked to the wire the points and condensor are hooked to. In the new picture you have another wire running from the outside to the bottom screw also. What's that for? I'm only assuming that's a regular distributor that only looks different than the ones we're used to here.
     
    Glenn, Oct 6, 2007
    #9
  10. Oct 6, 2007
    unelemented

    unelemented Member

    New Zealand
    Joined:
    Jun 21, 2007
    Messages:
    77
    I put the coil wire on the wire were the points and condenser in the dizzy and still have no spark
     
    unelemented, Oct 6, 2007
    #10
  11. Oct 6, 2007
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
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    12,390
    Where are you checking for spark at? Are you checking across the points or at a spark plug?
     
    Glenn, Oct 6, 2007
    #11
  12. Oct 7, 2007
    unelemented

    unelemented Member

    New Zealand
    Joined:
    Jun 21, 2007
    Messages:
    77
    I now have spark
    I had to ground the wire to the points
    there is an isolator between the points and condesor and i had the coil on the wrong side of the isolator
    I had it coughing last night so should be running soon
     
    unelemented, Oct 7, 2007
    #12
  13. Oct 7, 2007
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,390
    Good news! :)
     
    Glenn, Oct 7, 2007
    #13
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