some of you may have seen my posts regarding the 26' Coupe I recently acquired. today I was working on getting it running. when I open up the fuel shutoff and allow fuel into the carburetor, it's leaking outside the back flap (air intake) of the carb. I'm thinking stuck float or needle? How do I remedy this?
Try tapping on the inlet to the carb, it may be a stuck float.
Whack it with a wrench. Really. Sometimes unsticking a stuck needle valve just takes a bit of tapping on the carburetor to knock it loose. If that doesn't work, then you have to open it up and investigate. This being a newly acquired car, you don't know what's in there. It could be a Grose jet, notorious for being problematic. Or it could be a bit of debris caught in the valve. You have to look.
Hi Matthew: You my have a vi-ton needle valve in the carburetor that has been softened by exposure to ethanol gasoline, they work for a year or two then start to leak, the original metal parts are more reliable when fitted well. Brad.