Re: 1938 v12 Touring Sedan Vapor Lock?

Posted by PackardV8 On 2011/4/21 19:45:14

Also check the heat riser on the exhaust manifold. MITE have to tie it open with some bailing wire or coat hanger as a test.

I am not familiar enuf with the V12's. But if it has dual exhaust and one side of the exhaust has any significant leaks/muffler holes or other significant problems that would cause an exhaust flow imbalance from one side to the other then that could also cause the vapour lock.