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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 2022 Sponsor 2021 Sponsor 2020 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 Super Moderator 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

    Post Falls, ID
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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... 2022 Sponsor 2021 Sponsor 2020 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.
     
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  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

    Republic of Texas
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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.
     
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