Re: 1940 Packard 1801 won't start

Posted by fredkanter On 2017/1/11 9:00:42

An overheated engine usually will not cause valves to stick, the cast iron valve guides expand greater than the vlve stems so valves get looser if overheated. Besides, when the engine cools down all returns to normal. What will cause valves to stick is old varnish smelling fuel, the gumminess gets into the guides and sticks the valves.