Re: Vapor Lock on the '55 Clipper Suoer

Posted by PackardV8 On 2009/6/20 22:26:32

Does the vapour lock seem to occur when the gas tank is nearing empty????? When filling the tank try to leave it just a little shy of full to keep the vent TUBE cleared of fuel.

Some modern cars with IN TANK pump and FI will experience short pump life if the tank is always ran near empty due to the lack of gas sloshing around to cool the in-tank pump. Some people run their modern cars near empty most of the time.

If the probelm persists maybe try running with the hood removed. I'm suspicous that hte vapour lock problems reported are occuring in the carb due to heat build up and boiling the gas in the bowl of the carb.

Also not e that the WCFB as used on 56 Clippers needs to have the carb air horn screws tightened from the inner most to t he outer most screws OR a 'bushing installed in the choke vacuum port BETWEEN THE AIR HORN and carb bowl body as outlined in one of the Service Counselors. Symptoms are indicated by engine stall on hard left turns.

My 56 Executive has this problem and i have to tighten the airhorn screws about every 3hree years.