Strange jet on bottom of B carburetor

[jrapose]

I have a B carburetor and it has a strange jet on the bottom of the lower bowl.... it has a brass fitting with a needle style adjustable jet sticking thru it...... any ideas as to what it is for ? I have a half dozen B Carbs and none of the others have it....it looks just like a stock B Zenith carb..

I was thinking this was some sort of adjustable main jet ?? ideas ? What ya think ? turn it to closed and open it up 1 1/2 turns ?

Joel

[Bruce Lancaster]

There were a lot of non-Ford variants of the Model B type carburetor, I think mostly for industrial engines and Farm machines. Some of them have adjustable main with adjusting needle through the drain hole there, and these would be easy to transplant to a Ford B carb. Adjustable main with control at the carb would make sense for a stationary application.
I don't see any reason to use such in a car, particularly since the B carb has its own adjustment right on the dash.

[jrapose]

Thanks....that is what I thought.... I totally agree about not being needed.

Joel

[Deny1950]

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my 30 coupe has the same thing