When it doesn't start does it crank but not fire, or try to fire but off time into the intake or exhaust?

Assuming that it is a crank and not fire the only common "plug" wire is the one from the coil to the distributor, it would be extremely strange for all the indivdual spark plug wires from the distributor to the plugs to fail and recover at the same time.

Just because you have installed new points doesn't mean whatever was causing them to fail (oil film or ?) isn't still happening. Next time it doesn't start inspect the points carefully for any indication that they are not opening as intended (meaning breaking the electrical circuit).


1949/50 3600 Project
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