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Anyone Running One Of These?

Discussion in 'Early CJ5 and CJ6 Tech' started by SIDSCJ, Jan 12, 2022.

  1. Jan 14, 2022
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2021 Sponsor

    East Tennessee
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    Interesting. I have a box full of carburetor parts including the base/throttle body for the carburetor that came off of my CJ5.
     
  2. Jan 29, 2022
    SIDSCJ

    SIDSCJ Jeep addict

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    I just rec'd mine today from him.
    1. Yes, it's new - never used
    2. Looks to be one that didnt meet QA for final fit and finish. Many things not quite 100%....
    3. I may get a kit for it and see if I can make it run when it warms up. Was sold as : "For parts or repair'' in the listing so I guess it is what it is.
     
  3. Jan 29, 2022
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2021 Sponsor

    East Tennessee
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    The "O" in NOS means something with these. They are probably military surplus, which dates them to late sixties early seventies or older.

    I had to straighten the throttle lever a little on the one I got, and I put a good kit in it. After getting the metering rod set right it has performed flawlessly.
     
  4. Jan 29, 2022
    SIDSCJ

    SIDSCJ Jeep addict

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    What did you get for a kit?
    There were two of the top cover screws cross threaded and in crooked on mine.
    I need to determine the thread pitch and run a tap thru them before I'd dare use it.
    At least they quit before they got cranked down all the way and stripped the holes out. And, of course, they're the blind holes on the corners.
     
  5. Jan 29, 2022
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2021 Sponsor

    East Tennessee
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    I either got the kit from QTM (probably) or CMV. Just be sure to get a master kit with an accelerator pump diaphragm of modern material that will hold up to E-gas. I don't use Ethanol gas around here because non-ethanol is readily available, but who knows what will be available away from home.
     
  6. Jan 30, 2022
    scoutpilot

    scoutpilot Member

    Asheboro, NC
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    Be very careful. A number of years ago a batch of "NOS" YF's was offered for sale. They are part of the final batch from an "offshore" contract that indeed did not meet specifications. Basically junk and good only for some of the hardware. The giveaway on them is the throttle body does not have the "1-630" part number missing from the casting. I purchased a few of them and couldn't get any of them to work. There is a serious flaw in the main body/bowl casting.
     
    dozerjim, jeepstar and Glenn like this.
  7. Jan 30, 2022
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2021 Sponsor

    East Tennessee
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    I purchased one of these because the bowl on my original was ruined. This one works fine, but I may just be lucky. This is interesting so I will check the throttle body to see whether it has that part number or not.
     
  8. Jan 30, 2022
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    Is the YF cast on the carb you're talking about?
     
  9. Jan 30, 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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    Maybe the same batch, but I also know some were on the market with defective castings of the accelerator pump cover.
     
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  10. Jan 30, 2022
    SIDSCJ

    SIDSCJ Jeep addict

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    Mine does not have the 1-630 cast into the throttle body.....
     
  11. Jan 31, 2022
    scoutpilot

    scoutpilot Member

    Asheboro, NC
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    Will the vendor take it back if it doesn't work?
     
  12. Jan 31, 2022
    SIDSCJ

    SIDSCJ Jeep addict

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    I haven't asked, only because it was listed as:
    "
    Carter YF Carburetor. NOS. Jeep Willys CJ5, M38A1, F134. For Parts or Repair.

    Condition:
    For parts or not working"

    I now have a used working Solex, and a new "non-working" Carter YF.....
    That said, I dont have a ton of $$ into it and my Jeep still runs.
     
  13. Jan 31, 2022
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    I knew it sounded too good to be true. Upon further inspection of the exterior at least I got the loose screws to tighten down. Looks like they're probably remove ok and reinstall ok. Gotta wonder though, how come they used 2 different types of screws....the heads are different.
     
  14. Jan 31, 2022
    SIDSCJ

    SIDSCJ Jeep addict

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    Screwy screws Carter YF small.jpg

    top cover casting is poor, think that would leak on the left side??
    Thats how it came out of the box..
     
  15. Jan 31, 2022
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    Mine looks a little better than that, not much though. These we got are the ones that start looking suspicious at first glance when you open the package. It doesn't really surprise me though, I've bought NOS M37 small parts that were not much good for anything.
     
  16. Jan 31, 2022
    SIDSCJ

    SIDSCJ Jeep addict

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    What it looks like to me is the carb body is original Carter part, top cover and bottom TB are not, or at the least outsourced by them.
    Top cover holes are not 100% true to the body, which is why the screws are off.
     
    Glenn likes this.
  17. Jan 31, 2022
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    I did notice the difference (big difference), and since you mentioned it I do agree with your thoughts. Looking at it from your perspective it certainly makes sense.
     
  18. Jan 31, 2022
    SIDSCJ

    SIDSCJ Jeep addict

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    I guess it goes on the "What not to do " shelf:n:

    I think my buddy has a Weber that was on an f-head.....

    It's a big shelf ya know.......
    My query in the classifieds netted the sound of crickets.
     
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