L Head Hesitation!

Discussion in 'Flat Fender Tech' started by millennium falcon, Sep 7, 2016.

  1. Sep 7, 2016
    millennium falcon

    millennium falcon Member

    Central PA
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    My Dad just picked up a 47 cj2a. It is completely stock and in great shape. It runs good except for the first tiny bit of throttle above idle. if you try to roll on the throttle smoothly it will stumble and stall. If you blip it and get the revs up a little bit then it will run fine. If runs smooth and strong at all other engine speeds. This makes it annoying in town and off road. Any ideas? I have not taken the carb apart yet. the jeep has been driven regularly and been well taken care of. I do not know if the previous owner rebuilt the carb or messed with it at all. Any help would be appreciated. Thanks!
     
  2. Sep 8, 2016
    47v6

    47v6 junk wrecker! Sponsor

    Washington DC.
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    I would start with replacing the points, condenser, plugs and fuel filter. Check and set timing, then look to the carb for issues. They are not complex carbs and a rebuild kit would be pretty easy for you to do.
     
  3. Sep 8, 2016
    PeteL

    PeteL Member Sponsor

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    x2.

    First, a basic tune up to get everything in spec. Otherwise you are chasing your tail.

    Then, if hesitation persists, possibly the accelerator pump function, or a vacuum leak may be an issue.
     
  4. Sep 8, 2016
    millennium falcon

    millennium falcon Member

    Central PA
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    OK. I will give her a good tune up and check back in with you.
    Thanks!
     
  5. Sep 9, 2016
    Desert Runner

    Desert Runner Sponsor Sponsor

    Hickory, Pa
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    X2 on Accelerator pump

    Jay
     
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  6. Sep 9, 2016
    scoutpilot

    scoutpilot Sponsor Sponsor

    Asheboro, NC
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    A quick simple fix. Raise the metering rod slightly.
     
  7. Sep 9, 2016
    millennium falcon

    millennium falcon Member

    Central PA
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    I Hope its that simple. I will hopefully have time to mess with it a little this weekend. I really do appreciate all the advice. Thanks!
     
  8. Sep 9, 2016
    PeteL

    PeteL Member Sponsor

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    I would suggest scoutpilot probably is the first voice to listen to, regarding Jeep carbs.
     
  9. Sep 10, 2016
    millennium falcon

    millennium falcon Member

    Central PA
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    Well it sounds like I have some excellent info..... I will get to the bottom of this.
     
  10. Sep 11, 2016
    millennium falcon

    millennium falcon Member

    Central PA
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    Well My good man......you were right! A quick 3/32" bend of the rod that lifts the metering rod and "boom" It runs like a top from idle-up. Thank you all so much for the advice.
     
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  11. Sep 11, 2016
    47v6

    47v6 junk wrecker! Sponsor

    Washington DC.
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    That is awesome!
     
  12. Sep 12, 2016
    millennium falcon

    millennium falcon Member

    Central PA
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