Re: Fuel Boiling Out Of Carburetor

Posted by Tim Cole On 2015/9/4 15:51:35

I have an old Rochester manual that states that a closed throttle can create a partial vacuum that pulls the gas out via the idle ports. Thus, parking the car with the throttle open may help.

If the problem is in fact boiling the addition of Stoddard type dry cleaning fluid to the fuel should lower the boiling point. Although it may not work with point ignition.

I would do some lab work though. I would get an electric hotplate and check if the fuel will boil at the temperatures reached during a engine off soak.