My carb choke plate is odd

[Bill A]

Picked up a Autolite 4100, 1.12 carb that supposedly belonged to a 59 T bird. The only number on the carb is 5752309 which I believe is a correct carb for my 352. The only thing I can't identify is a choke plate anomaly. It has a swinging plate inside the larger choke plate. Anyone familiar with this? Hope I can still use it but don't know if that will affect setup. I have pix if that will help.

Any help will be appreciated.

Bill A

[jopizz]

I have had carburetors with that type of choke plate. The ones I've had worked fine so you shouldn't have any issue with it as long as the spring is good. I believe it's meant to increase the air coming in at higher rpm with the choke closed. Vacuum pulls the plate open. That is the correct carburetor for your '59.

John

[Bill A]

John,

Well I guess I'm missing the spring because nothing is there and the plate is just flapping in the breeze. There are two posts on the plate. Does the spring go there? I guess I could just fix it closed and be no worse off. Maybe?

Thanks for your input,

Bill A

I have had carburetors with that type of choke plate. The ones I've had worked fine so you shouldn't have any issue with it as long as the spring is good. I believe it's meant to increase the air coming in at higher rpm with the choke closed. Vacuum pulls the plate open. That is the correct carburetor for your '59.

John

[jopizz]

The spring goes in the center. There is a space where it fits. It's a very small spring. They often rust and fall apart. I would just fix it closed all the time. They did away with it in 1960 so I guess it wasn't that effective anyway.

John