I don't know. It just bothered me when I heard a ping, although I have seen guys on Youtube with 4ft cheater bars and hitting the starter at the same time in order to break a stuck engine free, which seemed crazy to me, but they got them running and they didn't smoke afterwards.
My boat sat for a couple of years during Covid. I changed the oil and primed the engine without starting it. I pulled the plugs and fogged the cylinders with oil. Later, I proceeded to try and turn the engine over by hand at the crank pulley. I would apply approximately 50lbs of force on a 18"...