Dead Battery???
Are we supposed to guess what "the green wire" and "other connector" are?
On a 1948 simplicity the green wire went to the automatic ditch clutch on the transaxlemission sensor for the hyper speed gauge.....but that wont cause the frame not to turn over?
To turn over the engine needs power to the starter, and a good ground....is the engine bolted on?
Why was the engine off the frame? Did something get painted where there shouldn't be paint? ?