Any idea what this does? What is it called? On my 216, there is just a continuous hose connecting to the bottom of the radiator.

Nothing like this part. Is it necessary? What does it do? Thanks!

an image of the 235 part I am trying to identify



"My tires and tubes are doing fine, but the air is showing through" smile

1946 Chevrolet 1/2-ton
In the Stovebolt Gallery
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