What's goes here?

According to the Carter diagram, there should be a check ball in this orifice.

My carburetor had this brass vent tube thing threaded in there with no check ball at all.

How should I proceed? Is this brass stem vent thing a replacement for the check ball? Am I looking at the diagram properly?

Notice that the Carter diagram shows the check ball in the accelerator pump cover in the wrong location. It's actually on the opposite side of the piston than is depicted in the drawing as you can see in the photo of the carb.
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Last edited by Otto Skorzeny; 03/17/2022 4:15 PM.
1950 Chevrolet 3100 (Ol' Roy)

1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)