1975 Chevrolet Cheyenne Repair Question
Asked on September 3, 2011
Old truck, swapped motor to a 455 big block, having vapor locking problems, any suggestions?
I can easily work on this truck, just a little short on time and money, any suggestions that don't involve moving the fuel line, or pushing it off a cliff?
Asked by kbyracingAnswer
Replied on September 3, 2011
If its actually vapor locking-seal the fuel pump area and see if it helps
Replied on September 3, 2011
A true vapor lock is the fuel boiling due to being too close to a heat source. I doubt that is really your problem. It's much more common for a mechanical fuel pump to suck in air due to a porous fuel line somewhere between the pump and the tank.
Replied on September 5, 2011
i know exactly where my problem is, just don't have the time or money to move the fuel line, it has an electric fuel pump that i have had pressure tested, so i know it's a true vapor lock, would wrapping my exhaust manifold help? or make my problem worse?