Engine dies after exiting freeway--1950 Std. Eight

Posted by Mark Buckley On 2010/11/7 20:57:10

Hi, all

I have a fuel problem that I'm having a hard time figuring out. I have a 288 with a Carter WDO carburetor. I often drive on the freeway at sustained speeds of 55+. When I exit the freeway and come to a stop at the end of the off ramp the engine always stalls. Always--unless I put her in neutral and keep giving it lots of gas.

This doesn't happen when I'm cruising at lower speeds on city streets and stop at stop signs or traffic lights. In those cases the engine backs down to idle just fine.

The condition does not seem to be related to the engine's heat--I don't think vapor lock is the problem. I have also loosened the gas cap, in case the vent hole to the gas tank was plugged and I had a vacuum. No difference there, as well.

My car's mechanical fuel pump seems to work fine and I also have an electric auxiliary pump. The car stalls whether I have the electric pump turned on or not.

Any ideas you can give me on this one would be greatly appreciated!

All the best,

Mark in Seattle.