The only way an engine can start without the starter rotating the crankshaft is if the crankshaft is still rotating from shutdown, which should only be less than a second, or if the crankshaft is still rotating because it is dieseling. The crankshaft isn't going to begin rotating all by itself.
I suspect you are trying to say something else, but unless you can find a way to say it clearly we can only guess at it. keep trying and we'll be here. these old trucks are not that complicated.