Maybe you still have water in the cylinders.
If so, when you are cranking it, the piston hits the water and cannot move (as you cannot compress water!)
Try this!
Remove the plugs (allowing for water to push out) and see if it will turn over at least 2 full revolutions.
I'd send you a guide, but I cannot find anything suitable for your dilemma.
Keep us posted.
The Medic
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Thursday, January 24th, 2019 AT 5:00 PM