Hey Walter,  I have been in this hobby for longer than I care to remember and if we can't help each other there's no reason to have a Forum like this.  I have helped out  and been helped out over the years and that is part of what makes this hobby great and keeps our cars on the road. Like you, I just wish more people would share what they are doing. I know there are a lot more participants on the Model T Forums but they actively share their experiences and by doing so they provide great information for their fellow club members.  Happy Motoring!

Right!

I took the part off my spare Carburetor so I don't need it right back.  I tried to find your address without success.  If you still have my email send it to me and I'll mail it right out to you.

If you want me to send you the part to use for a pattern let me know.

I think I finally figured out resizing pictures.  This is the part I think you are looking for.  It could be fabricated but if you have access to a 3D printer it would be an easy fix. 

Being computer challenged I just now realized that I can tap on your photo and enlarge it so I can see it clearly.  I have that part on one of my carburetors and managed to get it off so I can send it to you for duplication if you want.  The only way the part comes off is if you remove the butterfly and take the throttle shaft out.  The piece will not go over the knurled end. The shaft is drilled to accept the screw holding that piece to the shaft so once the screw is completely removed the piece slides off easily.  I have pictures but can't resize them to post here.  I can send them via a private email if you want.

Looking at the BB-1 carburetors I have that piece seem to come in a couple of different styles.  If you can get me a closer shot of yours and it matches one of mine I will try to get it off of one of my carburetors and send it to you to copy.  If someone had access to a 3D printer I bet it would be easy to duplicate.

I accidentally blew the fuse on the ammeter in my 30-U because I was too lazy to disconnect the battery before doing some minor electrical work.  No big deal but the fuse looks like it might be the original one and has no markings.  My guess is it's 20 amp but I was hoping someone knows for sure what the correct size should be. I can't find any reference to it in the owners manual.

The accelerator pump on the RT-08 carburetor is practically useless so not having it hooked up on the BB-1 probably doesn't make a difference but I think you will notice a big difference once you have it connected. I checked the carburetors I have and do not have a spare of the piece you are looking for but I would call the Carburetor Shop in Missouri and see if he has what you need.  There are several variations so if you have the brass tag with the identifying numbers I am pretty sure he can help.

Roadster looks great!  You can't beat an open car!
I am still looking for the side mount hold down hardware for my 30-U if you come across any of it.

What piece is broken?  Can you post a picture of it?

Took mine off to get a better picture.

Finally figured out how to get a picture, I hope!

I run an air filter on my BB-1.  It's the correct filter but I use an adaptor that allows it to fit on the larger diameter of the BB-1 carburetor inlet. I found the adaptor at Hershey years ago.  I am trying to attach a picture but it's too big and I have no idea how I can downsize size it.

My brass bowl carburetor is sitting on a shelf in the garage.  I run a BB-1 now after years of trouble with the original carburetor.  I know people who run them without issue but they have a reputation as being one of the worst carburetors Carter ever made and mine always gave me fits.  Even when it ran OK it never came close to performing the way the BB-1 does.  There's a reason Chrysler switched over to the  BB-1.  I know that doesn't answer your question but I completely rebuilt mine twice and then had it done professionally thinking that I was doing something wrong.  Each time it ran marginally well for a while and then started acting up for reasons that I could never determine.