Re: 1940 Packard 1801 won't start

Posted by bob hattler On 2017/1/13 12:37:10

If the piston hits top and the valve is open or partially open there's no compression. If the gaskets is leaking there's no compression in that cyl. The camshaft sets valve openings which cannot be changed. Changing the timing sets the spark late or early.

If the timing chain is not installed exactly to spec to align exhaust valve opening near top dead center, what good is it to adjust the spark?

Bob