Judging by the floa,t this unit appears to be little if ever used. The bowl like on many of these has lots of hardening cracks. I would really like to find a manifold for this unit. If you have one that you would sell or trade send me a PM.
Here's a photo from a previous thread Of a U&J Stan Howe restored.
Here's the U&J setup that Royce posted from a previous thread that he runs on one of his T's.
Those are great carbs and not too hard to rebuild with a different bowl. Instead of trying to make a bowl fit the slightly larger flange on the U & J I machine the U & J to fit a slightly smaller bowl. Also have to machine the lower fitting a bit to make it work. The manifolds are hard to find but not impossible. You can also use one of the other similar manifolds but most of the ones I find have the flange the other way. Have to make an adapter.
Here is my theory on why there are so many NOS ones of these around. Guy became a dealer. Got in 6 carbs -- usual dealer minimum. Sold two or three. The came back when they started leaking gas through the cracks in the bowl. He took a bowl off the new one he had on the shelf, put the old one on the one on the shelf. So there was a new carb with a cracked bowl. We end up with it later. I've probably rebuilt a dozen or so of them, they run fine.
I modified a float bowl from a junk Holley Model G. It fit the U&J fine after a little work with the lathe turning the inside lip. The original bowl had a thousand cracks.
I had a copper float in a big box of old floats that fit fine too. I have not had good luck with old cork floats.
The U & J is on my '17 runabout now. It really runs good!!!!!
I also run one on my '14 runabout and the performance approaches that of a scalded ape. But I haven't determined if it uses more or the same amount of gasolene than a NH straight through.
I sent you a PM Jay, never heard back from you. Let me know if you want the intake.
Here's an ad from a period trade magazine.
Here's a Trade journal Magazine stuffer advertising postcard from the day for the U&J carburetor.
I thought some of you who run one of these or have one on the shelf might like to copy this to go with the unit.
Here's another trade journal magazine advertising stuffer. It came three folded.
Where is the mixing needle on this carb? Or does it have one? What type of float valve does it use? Good pictures...
Could you take one more picture looking straight at the choke side of the carb, please? I'd really like to know what's on the other side of the throttle arm.
Here's the both other sides of the carburetor.
Jay, thank you. The butterfly is held to the choke arm with screws like on a Model A's Zenith carb? Is the throttle the same way?
Notice the disk under the throttle arm? Correct positioning of that disk is critical to successful operation of the U & J.
What does that disk look like when it's not assembled into the carb? Does it have holes, fins, or one hole that aligns a passage for air? Pictures please?
Great thread! Thank you Jay, and all!
Drive carefully, and enjoy, W2
It has a little thumb that engages the throttle arm and a small hole for an air bleed. You can see it behind the throttle arm in the first picture.
I should have said the throttle arm collar. That's how you adjust it.
The mixing needle you asked about is the T handle with a brass stop nut directly under and in the center of the brass bowl. Its at the lowest part of the carburetor.
I thought that was the bowl drain, is it long like the Kingston or Holley's?
Ok, Look this over and tell me what I'm missing. I'm pretty sure that I didn't get all of it right with regards to the innards, but hopefully I'm close.
Hey Jay - did you ever get this carb and intake rebuilt and on the car?
Seth, I've been saving up the money to have Stan Howe work his magic on the unit. He's working on a Zenith S4BF right now for me and 4 straight thru NH carbs for backup spares. When your on a fixed income it takes a while to scrape up funds for T stuff and keep domestic tranquility! :-)
BTW. Thanks for letting go of the manifold. I'll post a photo of it once it gets rebuilt.