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Ok, I Am Officially Getting Tired Of This Crap

Discussion in 'Early CJ5 and CJ6 Tech' started by mickeykelley, Nov 3, 2021.

  1. Dec 11, 2021
    Rick Whitson

    Rick Whitson Detroit Area 2024 Sponsor 2022 Sponsor

    I live South of...
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    What fuel do you use? I use Rec Fuel, no alcohol. I think it is getting too rich in the high altitude, less Might try a adjustable main jet, if they make such a thing. Sounds like it is running rich.We are at 600 feet, and only go to 800- 900 foot in Michigan, so I am only guessing. I talk to Ford Engineers, my Brother, and other people that do testing out west and they say the air is too thin at 8,000 feet. Just a thought? Good Luck. Rick
     
  2. Dec 12, 2021
    mickeykelley

    mickeykelley Well-Known Member

    Republic of Texas
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    Finally made time to do some Willie work and got the NOS AC glass bowl fuel pump installed. Runs great. In fact actually feels better and smoother, but I recognize that may just be hope speaking. Now to drive him as much as I can here in Texas at low altitude to get comfortable before we drag him back up to the mountains at Christmas. Still debating on installing an electric one as backup. I’m thinking one step at a time. I did notice the arm on the one I pull off was worn where it rides the cam. It was a replacement I got from Walcks shortly after I got Willie. I’m sure it’s a China piece. I do like how the original AC has a piece that floats on the cam. Seems like a better arrangement. But one thing I was in a hurry and didn’t pay attention when I pulled the vacuum lines and think I put them back on backwards as the wipers don’t work. I can’t see if it’s marked IN/OUT on the vacuum part. But I’ll pull the lines and see what I have tomorrow.
     
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  3. Jan 9, 2022
    mickeykelley

    mickeykelley Well-Known Member

    Republic of Texas
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    An update as requested in a prior post here. I drove Willie quite a few times in Texas with the NOS AC pump and ran perfect. No issues at all. We drug him up the the cabin (7,000’) and he ran great but felt just a little underpowered when I drove him by myself. Naturally, I forgot to take the vacuum and rpm gauges to adjust timing, which I’m sure needs to be done. Drove him several times around town without dying issues. But when I did have 2 passengers, I really could notice the power loss. We left him at the cabin but will be back there in couple weeks WITH gauges so I can set the timing according to scoutpilot's method and report back.

    PS, the vacuum booster part of the fuel pump is not working. For now, I just ran it direct to the source to bypass the pump. I did talk to the owner at Now and Then who did the rebuild and he said send it back to him and he will fix it.
     
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  4. Jan 9, 2022
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    Yup, I bought a rebuild kit from them & I had problems with the valves they supplied on the vacuum side, not as good a design as the stock ones. I ended up going through my pump collection to find some good ones. The rest of the kit was first class.
     
  5. Jan 10, 2022
    ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    Liberty Lake, WA
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    Going from near sea level to 7000’ will steal a good percentage of your horsepower. Definitely enough to be noticeable. It will run richer too.
     
  6. Jan 10, 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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    x2
     
  7. Jan 10, 2022
    colojeepguy

    colojeepguy Colorado Springs

    At the foot of...
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    I think the rule of thumb is a 3% loss for every 1000 ft of elevation, and that assumes your engine is properly tuned for the elevation. If you're still running sea level jets & timing it'll be worse.
     
    Lockman likes this.
  8. Jan 10, 2022
    mickeykelley

    mickeykelley Well-Known Member

    Republic of Texas
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    Hey, we are not at sea level. Got a good 800’ of leeway.
     
  9. Feb 26, 2022
    mickeykelley

    mickeykelley Well-Known Member

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    Here is an update on 2 issues with Willie at altitude.

    First, is my on going issue of when he sat for couple weeks or more, the carb would be dry and would have to crank forever to get it to start. Sometimes even causing the need for jumping. I had actually tested my hypothesis that the carb bowl was empty several times back in Texas by letting it sit then looking down the throat and pumping. No fuel, BUT the clear plastic fuel filter down at the pump (before the pump) had gas. So before I pulled Willie up here to the mountains, I installed a NOS AC glass bowl pump I had been planning for several years. That was the Only change. Due to getting Covid and other factors, Willie sat for 2 months here in the mountains, including numerous snow storms. The other day, I decided to pull the cover and try to start him. I was worried that the battery might even be an issue having sat for so long and being pretty cold during Jan/Feb, that I bought a charger just in case. Pulled the choke, couple pumps, couple turns and Willie fired to life. SO my opinion is that the replacement pump I got several years ago from Walcks was the culprit. NOT that it was Walcks fault, but instead Chinese junk. I’ll save it for emergency only.

    Second, it is still running a bit rich, but I forgot to bring up the altitude metering rods I had the Carter guy (https://www.thecarburetorshop.com/PartsCarter.htm) make for me. As I recall he made me a -1 and -2 for different altitudes. I’ll have to check my notes when I get back to them. So next trip, that is on my list but for now he’s running fine but rich. Will do Scoutpilot's timing method now that I’m up here at some point. Probably wait for the metering rod replacement. I’ll update after that change.
     
  10. Dec 5, 2022
    Roboat

    Roboat New Member

    Orlando, FL
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  11. Dec 5, 2022
    Roboat

    Roboat New Member

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    When it stalls try loosening the gas cap and listen for a rush of air.
     
  12. Dec 5, 2022
    Renegade ll

    Renegade ll Member

    Thayne Wyoming
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    Do you have an HEI distributor?
     
  13. Jul 29, 2023
    mickeykelley

    mickeykelley Well-Known Member

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    Ok, I finally think I’m making progress. I did get the altitude rod installed but I kept having issue of it would start but seems to run very rich and when I would press on the accelerator it would bog down and I could never get anywhere. At one point I had even shipped it off to Scoutpilot who said it was fine when he installed it on his engine. He suggested it might be the Pertronix unit and check all electrical parts. So while I’m back at the mountain cabin, I decided I would look into this again. So I got it started up and was able to immediately pull it around. It ran great, even pulling the Bantam with a load of wood. So we drove it around and was running great. I did nothing but it seemed to fix it self. Then I pulled around to the back of the cabin to unload the firewood out of the trailer. After I got it unloaded, the same problem magically came back where it would bog down. Then I donned on me that I was parked on a slide slope with the drivers side lower. And that same slope is where I part it all the time. Eventually I got it moved by reviving it up and popping the clutch to get it pointing up hill. Then I got it to run fine and pulled it around. Went for long drive and all ran fine. So I’m guessing the float must not be set right? Anything else that would cause it to bog (flood) when leaning to the drivers side?
     
  14. Jul 29, 2023
    amboynut

    amboynut Member

    Chelatchie, WA
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    Roll sensing flux capacitor out of calibration. To calibrate, park your JEEP on a known level surface (a pool table will do) and turn the 7 Reed & Prince headed Whitworth calibration screws in or out (the sequence is critical) as needed until the red LED turns green. Voila!

    Of course, the pitch sensing flux capacitor will require the same adjustment procedure if you notice a difference in performance going uphill vs. downhill.

    The yaw sensing flux capacitor rarely needs calibration.
     
  15. Jul 29, 2023
    Ol Fogie

    Ol Fogie 74 cj5 304, 1943 mb

    Southern...
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    Im gonna have to get out my service manual and review some on this one.:study:,:study:,:confused::confused:, humm can't find it!
     
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  16. Jul 29, 2023
    mickeykelley

    mickeykelley Well-Known Member

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    I am serious guys.
     
  17. Jul 29, 2023
    ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    Liberty Lake, WA
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    It sounds like you’re on the right path, but it’s seriously hard to diagnose problems like this over the internet. There are things that we could see in person that you might not think to describe, like exhaust smell, manifold temps, small misfires, vacuum hissing… many symptoms pointing to very different issues.

    You might need to start dropping in substitute parts until you find the culprit. Borrow a carb from someone or buy a cheap replacement. No change? It’s not the carb. Put the points back in. No change? Not the pertronix. Continue until you find the problem.

    Just for kicks… Park on that side hill and pinch off the fuel line with vice grips. If it goes from running poorly to running great within a minute, yes, that’s your problem. The engine will become happy as the fuel level in the bowl drops.
     
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  18. Jul 29, 2023
    Jw60

    Jw60 Sitting up n buckled down. 2024 Sponsor 2023 Sponsor 2022 Sponsor

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    I'm curious to what the inside of the fuel tank looks like.
     
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  19. Jul 29, 2023
    mickeykelley

    mickeykelley Well-Known Member

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    Very clean. Already checked. And no clogs or junk on filters or fuel pump.
     
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  20. Jul 29, 2023
    Ol Fogie

    Ol Fogie 74 cj5 304, 1943 mb

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    Just thinking, Next time it starts acting up, stop and pull a couple spark plugs and see what hey look like.
    Wet with fuel, maybe black soot on them might at least tell you there is too much fuel getting in there. Also when it is running bad pull the air filter and have a look down in the carb while it's running. Work the accelerator by hand, is sufficient fuel squirting into the carb bore, might reveal if there is an accelerator pump diaphragm problem. Intermittent sticking of the float valve comes to mind causing over filling of the carb with fuel and flood. or if the valve sticks closed it might starve the engine for fuel creating a poor or no response of the engine.:shrug:. When it is running along good, pull over on a sideways slope to see if you can force the poor run condition to return.
     
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