Questionhaving a problem with a 1932 chevy. engine dies on hard decell and stepping on brake. rebuilt carb and still happening. starts right up idles & accelerates good?
AnswerYou'll have to do some detective work here. Next time this happens, sniff into the top of the carburetor to see if there is a strong odor of fuel. You could also take a flashlight and look down the carburetor to see if there is any liquid fuel showing. Do this before you try to restart the engine, because as soon as you crank it, the gas will have evaporated or gotten sucked into the intake manifold.
If you do see or smell liquid gas, what is happening is that when you stop abruptly, gas is spilling down into the carburetor body and temporarily killing the engine from the over-rich mixture. Causes of this are a float level set too high, or a bad gasket at the top of the float bowl, or possibly a crack in one of the carburetor parts allowing liquid gas to slop over.
If I've guessed wrong, and you do NOT smell or see gasoline down there, your problem might be a loose wire that is flopping around when you decelerate - check all the wires from the ignition switch to the coil, and from there to the distributor - something is loose somewhere.
See if this leads to a solution, if not, let me know and I'll think harder.
Dick
