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Starting issue.

Discussion in 'Intermediate CJ-5/6/7/8' started by '72CJ5, Jan 11, 2013.

  1. Jan 11, 2013
    '72CJ5

    '72CJ5 Member

    Modesto,...
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    Put new fuel tank in today and went to start it. Primed carb and fired right up and ran for a few moments then died. No gas in filter yet. Primed again and jeep would fire up then die soon as I let off the key ... Like immediately. Did that a few times and now it won't do anything but turn over without even a sputter. I got gas in carb and I got solid power and ground to my hei... But nothing. Any suggestions??? I know it's something simple but my mind is mush as if now due to work schedule.
     
  2. Jan 11, 2013
    sterlclan

    sterlclan Member 2022 Sponsor

    exploring the...
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    lines switched on new tank? vent and pickup?
     
  3. Jan 12, 2013
    '72CJ5

    '72CJ5 Member

    Modesto,...
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    Used same sender since its almost new. Besides that I was priming the carb to get it fired up in order to suck fuel up but never got that chance
     
  4. Jan 12, 2013
    cookieman

    cookieman Member

    Colton,Calif
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    go to basic ..got gas in carb ...got spark at the plugs..If you got gas and it is spraying into manifolds, and got spark. If no spark check the inside of cap for arching and clean the rotor.
     
  5. Jan 12, 2013
    '72CJ5

    '72CJ5 Member

    Modesto,...
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    Checking spark soon as I can either get a mechanic start button or a second set if hands.
     
  6. Jan 12, 2013
    rusty

    rusty Well-Known Member

    norfolk,va
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    Dec 16, 2006
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    1,652
    Take a look at your key switch, may have a wire off. Check for 12 vdc a H.E.I.
     
  7. Jan 12, 2013
    '72CJ5

    '72CJ5 Member

    Modesto,...
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    Everything was good upon checking today. Tore hei apart and I had a wire bust off a terminal . Thanks for the replys guys.
     
  8. Jan 14, 2013
    '72CJ5

    '72CJ5 Member

    Modesto,...
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    Ok so I jumped the gun. Wire had nothing to do with it. Still no spark. I have all my power and grounds correct and feeding the hei. Even went far enough to dismiss the Crappy terminals it had and hard wired everything accordingly to a seperate terminal block and nothing... Power in and nothing coming out. Did some reading and am just gonna buy a new unit. One I have now is the cheap $50 one eBay sells from wherever so I'm not wasting anymore time or money on it just go with new.
     
    Last edited: Jan 14, 2013
  9. Jan 14, 2013
    johneyboy03

    johneyboy03 The green beast

    Quebec, Canada
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    Hey, sound like a problem i had before. Take the hei cap off so you can see the rotor, ask someone to start the engine. If the cap doesn't turn you got a worn gear. Problem could comme from one part inside the hei. It's pretty cheap to rebuilt,
     
  10. Jan 16, 2013
    '72CJ5

    '72CJ5 Member

    Modesto,...
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    Don't want to put money into this unit. Besides I looked and found no replacement parts for it. So instead I just purchased a new unit. Will check my cam gear once I get back over to the jeep
     
  11. Jan 17, 2013
    73cj5

    73cj5 Member

    Maine
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    Jan 15, 2004
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    Just to recap, it will run when you hold the key to start?
     
  12. Jan 17, 2013
    johneyboy03

    johneyboy03 The green beast

    Quebec, Canada
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    so any news my friend? hey i just think about that if it's the cam gear the problem just take the cap off and try to rotate the rotor...if it turn freel you got the problem.
     
  13. Jan 18, 2013
    '72CJ5

    '72CJ5 Member

    Modesto,...
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    No. It would die soon as I let off the key. Turn the key, it starts, let go of key and it would die. Now it does nothing and I got no spark from dizzy
     
  14. Jan 18, 2013
    Walt Couch

    Walt Couch sidehill Cordele, Ga. 2024 Sponsor 2023 Sponsor 2022 Sponsor

    cordele, Ga.
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    Don't know how modified your ignition is but the wiring diagram shows you should have two wires going to the coil plus (+). One wire should be (pink ?) special resistant wire and the other coming from the (I) terminal on your start relay. The diagram shows that originally the ignition used an external coil. Now with the HEI you have the internal coil. Your wiring will be different. The HEI does not use the special resistant wire (or should not) and a new wire from the (ON) terminal of the ignition switch to the proper terminal in the HEI cap. You will still use the starter relay (IGN) wire to the dist. Is this what you have?
     
  15. Jan 18, 2013
    cookieman

    cookieman Member

    Colton,Calif
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    put a small jumper (gauge 12) from the battery to + side of coil and see it run that way ..only for few mins . If that work it is your resistant is the problem. the resistant wire cut the voltage from 12 to about 9volt.
     
  16. Jan 18, 2013
    '72CJ5

    '72CJ5 Member

    Modesto,...
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    I have not jumped it yet but will soon ad I get back to jeep. If I remember right, I ran the wires from my old coil to the hei. It ran great till now and then all of a sudden nothing. Will bring my tester from work to check volts but I'm thinking that the no-name hei just took a dump...hoping. I plan to re-run the wires anyways so will be doing that once I swap it with my new unit. Will also check my cam gear prior to anything... I just don't get the hole dying soon as I let off the key... Then from that to no spark at all.
     
  17. Jan 18, 2013
    johneyboy03

    johneyboy03 The green beast

    Quebec, Canada
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    Hum last year when i broke the cam gear, the hei unit was having only one tooht broken, Hei was still turning but every turn it was missing one teeth….so at every “X” complete turn the hei was on the right timing and the engine was running for 1-2 second just the time you need to let off the key. At first i tought the same as you why the jeep is turning off when I leave off the key….i change all the part in the hei and nothing better. Little time after that i discover the cam gear failure.
     
  18. Jan 19, 2013
    '72CJ5

    '72CJ5 Member

    Modesto,...
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    I will check it out tomorrow and see what I can find. Will be taking my spare meter with me to check connections
     
  19. Jan 19, 2013
    Walt Couch

    Walt Couch sidehill Cordele, Ga. 2024 Sponsor 2023 Sponsor 2022 Sponsor

    cordele, Ga.
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    If you have a tac/dwell meter you can hook the tac connector to the dist tac pin and the meter (tac needle) will bounce when cranking if you are getting power and the coil is getting proper pulsing and if the coil is good.
     
  20. Jan 19, 2013
    '72CJ5

    '72CJ5 Member

    Modesto,...
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    Yes my tach bounces when turning over. Checked cam gear and rotor rotates when cranking. Will be hooping up new hei today and redoing the wires and connections to see what's going on.
     
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