Remove the plugs to see what they look like, and whilst they're out turn the crank again and look at the belt as it turns. The aux belt runs the alternator so it may not start without the belt and a drained battery.Turned the crank manually and it does go for a bit then gets really hard to turn, compression maybe? anyways, should it not start without aux belt?
looking for ways to tell if the engine is cooked or not