Can anyone tell me what this is, It came with some other model t parts the Patent is Oct 14 1902.
It has something like a choke butterfly in it.
What size threads into it ?
Throttle plate for a Schebler model D marine carburretor
Not for a T. It's a throttle plate for, probably, a Schebler carburetor. Used mostly in farm engines.
Ya, what Dale said.
about 1 9/16 course thread , mounting bolt holes are 5/16 diam. and 2 3/4 inch c/c
Schebler used an interesting sliding throttle plate. They work fine until carbon coats them.
thank you all for the help the model t people are the most knowledgeable group thanks Ron
Don't take this as gospel but I think that the slide plate type throttle was used on stationary engines that ran at a set speed and the normal butterfly was used on engines that were throttled up and down.
Mark, these Scheblers were a very good carb for stationary engines. They were also used on a lot of boats and 1 and 2 cylinder cars. My 1907 Buick came with one on it. It works remarkably well when the float is adjusted properly. they came in a variety of throat sizes.
Agreed, it's from "The Schebler" Model D.
Two things I found interesting about these Scheblers is that they apparently can be used with the air valve chamber and the throttle valve housing mounted in either location. The bolt pattern is the same and I have seen them both ways. Also, some used a tickler valve to push the float down, giving more gas for starting. Others used a choke valve. My carb has both. Either works well.
In addition I found that you can run mine with the top off and play with the float while the engine is running. This was great fun until it backfired and lit the carb on fire. I DON'T RECOMMEND THAT. However it was exciting.