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F-134 Just Doesn't Want To Idle

Discussion in 'Early CJ5 and CJ6 Tech' started by David Richard, Dec 22, 2022.

  1. Dec 29, 2022
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor

    East Tennessee
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    Like I said, those reproduction units will work fine.

    If you choose the breaker point version I strongly suggest buying better points, condenser, rotor and cap than what they come with.

    If you choose the electronic version be aware that some of them, at least the one I had, have the plate 180 degrees off, which only means you have to rearrange the wires, but that isn't any big deal and I imagine they have corrected that in the years since the one I had was made.

    If you want a serviceable original I will sell you one for a lot less than $200.
     
    PeteL likes this.
  2. Dec 29, 2022
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Hills of NH
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    But you were able to install new bushings? :confused:
     
  3. Jan 3, 2023
    Keys5a

    Keys5a Sponsor

    Florida Keys
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    X2, send your whole distributor out to a specialist that know how to rebuild it properly.
    -Donny
     
    oblvnnwtnjhn likes this.
  4. Jan 12, 2023
    David Richard

    David Richard New Member

    North Texas
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    Aug 11, 2022
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    Update. Replaced the distributor with the Crown breaker-less unit and the Jeep started to run MUCH better. No more missing and runs great at higher RPM's. May send the original out for repair eventually, but hard to argue with how easy a swap this was (twenty minutes total time to install and time it) and how nice it is to not have points. Still lean at Idle despite moving up to a very large .030 low speed jet. The idle mixture screw has no impact if it is fully closed or so loose it is about to fall out, so not enough fuel coming through the circuit for sure. The motor fires immediately and once off idle, performance is great. Drove the Jeep about 10 miles around town running errands and as long as you kept your foot on the throttle some at the stop lights, all was good. I am sure all the things outside of the carb are dialed in, but need to get the idle issue addressed to enjoy the Jeep. Frustratingly close to the finish line, but still not there.

    The rebuilder is taking the unit back to look for some obstruction in the idle circuit between the jet and the actual port. Very happy with the support from Sal at Vintage Jeeper who is working diligently to figure this out.
     
  5. Jan 12, 2023
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Hills of NH
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    Why? Sorry, never understood that belief. Not many things in life are so simple, reliable, and well proven for over a century.

    But glad you getting somewhere with your issue.
     
    Rick Whitson and Cj5dale like this.
  6. Jan 13, 2023
    Rick Whitson

    Rick Whitson Detroit Area 2024 Sponsor 2022 Sponsor

    I live South of...
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    I like Points, both of my motors have stock Jeep distributors in them both fire up and run perfect, what more could you ask for?
     
    PeteL likes this.
  7. Jan 13, 2023
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor

    East Tennessee
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    Me too, mostly because it is something I understand well and can maintain and fix even out on the trail. If I had an electronic ignition failure out on the trail I am not sure I could fix it.

    There is a lot of imported junk on the market which probably has something to do with the popularity of converting to electronics, but good quality components are still available. I have "Blue Streak" points and condensers in my Jeeps, and I do carry a spare set in my tool bag in case I need them, but have never had a need for them.
     
  8. Jan 13, 2023
    Fireball

    Fireball Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Pullman, WA
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    Yeah, electronic ignition has only been simple and reliable for 50 years.

    Just poking fun. Both work great, but one gets rids of a maintenance part. Neither one is great if you can't get quality replacement parts.
     
  9. Jan 13, 2023
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor

    East Tennessee
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    I agree that electronic ignition is reliable. All of the newer vehicles I have owned in the last 20 years have been very reliable.

    A breaker point ignition is also very reliable, and I prefer a breaker points ignition for the reasons I stated above. I also like driving a well maintained antique vehicle mostly with original equipment, and actually enjoy tuning these things, it keeps me sharp on skills I learned in my youth. I do upgrades for safety such as better brakes on my Jeeps, so I am not that much of a "purist".

    Other people probably don't enjoy this sort of thing as much as I do, and electronics does eliminate maintenance that some simply don't feel confident about doing.

    I am not opposed to someone converting theirs to electronic ignition, or EFI fuel delivery, it just isn't something I would be interested in doing.

    It is possible that someday quality breaker point ignition parts will become difficult to obtain and that might be a reason to go electronic, but they last a long time and I have enough of these parts on the shelf to last as long as I will be needing them.
     
  10. Jan 13, 2023
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    12,367
    I've gotten to the point where I don't have much faith in any of the newer stuff, whether it be points and condensor or electronic ignition. All I can say is it is easier to change the little horseshoe shaped electronic module in the newer distributors than a set of points and condensor. As far as a preference I'd be perfectly happy with points and condensor if I knew I could count on them.
     
  11. Jan 20, 2023
    David Richard

    David Richard New Member

    North Texas
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    Aug 11, 2022
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    It Idles! Just received the carb back from Vintage Jeeper and installed it and runs great. Here is what the rebuilder did:

    "Two things stood out, the diaphram base check ball seat has seen better days and the pintle style check valve in the carb wasn't sealing. I replaced the diaphragm base and swapped the pintle check weight with a ball style. In addition to that , a new diaphragm and original diaphragm springs."

    Sal Cansalvo is the owner of Vintage Jeeper and he is a true man of his word and an expert on these old carbs. He sent me a video of it running on one of his Jeeps before and after the repair and paid for all the shipping both ways.

    Thanks to everyone for taking the time to answer my newbie questions and pointing me to the eventual solution.
     
    CJMark, Glenn, Fireball and 2 others like this.
  12. Jan 20, 2023
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor

    East Tennessee
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    Great news.

    From my communications with him, plus what I have read and heard, Sal has made a good impression on me.

    I haven't done much business with Sal yet, but do plan on sending him a pair of knuckles for his stud conversion, and will check with him on transmission parts when I rebuild a T-90 for my project Jeep.
     
    Glenn likes this.
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