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[jrose]

Can anyone tell me the purpose of the about 3/4" 'plug' on the bottom of the carburetor bowl, or how it is 'adjusted'.  I had my carburetors apart, reassembled them and when I went to start the car one of the plugs leaked like crazy.  I proceeded to loosen the plug (unscrewed it a couple of turns), went to start it again and the leak stopped.

J Rose

[none]

Hi J,
Do you mean the plastic plug on the bottom of the bowl? If so, it is just a press-in plug with an o-ring. It is not threaded. Turning it possibly worked out some dirt or helped the o-ring seat properly.

[jforrester]

JRose,

The plug on the bottom of the bowl of CD 175-2 carbs is just a method to allow use of the same bowl as the early CD-175. The hole was for the richness adjustment knob/screw to protrude on the early non smog controlled Strombergs. Leakage in my experience is a common problem. At worse case you may have to remove the plug, replace the O ring, clean the bore and put some lube on the O ring before putting the plug back in.
 Good luck,
John Forrester