68 302 4300 Carburetor Problem
#1
68 302 4300 Carburetor Problem
Pulled the carburetor and spacer off of a friend's wife's 68 Mustang. The gasket underneath the spacer plate, at the manifold, was cooked. Pulling air like crazy and wouldn't keep running. This gasket looked like a diaphragm type of material. Very thin. Anyway I checked the top and bottom of the spacer with a straight edge from a square and it appeard to be flat along with the carburetor base. Replaced the gasket and it still had a big time vaccum leak. I had to keep spraying carb cleaner at the base to keep it running. Is the spacer gasket, at the manifold, a special gasket material or can I use a regular gasket. I may just try thicker gaskets or have the spacer plate milled if necessary. Any thoughts?
#3
Place the plate or carb on 600 grit paper placed on a piece of glass, give it a quick swirl, that'll tell you if it's warped.
IIRC, some 68 4300 carbs have a large manifold vacuum tube sticking out the back. Needs to be plugged if open.
IIRC, some 68 4300 carbs have a large manifold vacuum tube sticking out the back. Needs to be plugged if open.
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