The Ford Barn - View Single Post

Mulletwagon · 06-13-2019, 06:01 PM

Great advice from Clark !! My vacuum leak turned out to be a bad wiper line fitting. Idle mixture MUST be adjusted at minimum rpm. Keep in mind that turning the idle mixture in makes the idle mixture richer since the needle controls air and not fuel. Low rpm mixture adjusting forces fuel through the idle passage in the carb throat (if it is not clogged). Good Luck.

06-13-2019, 06:01 PM	#16
Mulletwagon Senior Member Join Date: Jan 2019 Location: Florida Panhandle Posts: 585	Re: Persistent intake manifold leak Great advice from Clark !! My vacuum leak turned out to be a bad wiper line fitting. Idle mixture MUST be adjusted at minimum rpm. Keep in mind that turning the idle mixture in makes the idle mixture richer since the needle controls air and not fuel. Low rpm mixture adjusting forces fuel through the idle passage in the carb throat (if it is not clogged). Good Luck.