Re: Vaporizing gas fix

Posted by PackardV8 On 2010/8/12 5:51:49

I believe that the solution to the vaporization problem will require elemination of the exhaust heat passing under the carb. Eleminating heat riser valve is not good enuf. Optimal correction would be to isolate the exhaust from the intake manifold and supply heat for cold engine temp operation via a direct ON/OFF heat source.

Note that since the late 60's or early 70's the heat passages thru the intake manifold were eleminated and a hose running from exhaust manifold to air cleaner with a valve was evolved. That type of carb heat delivery is what is needed on vintage engine for use with modern fuels.