I haven't tried to spin it manually that far... or do you mean kill ignition, and roll em w/ starter? It a low mile build, w/ all good parts... but that prolly don't mean much. I think I'd hear the Cloyez hitting...haven't checked for chain play yet. NOW, on that fuel pump eccentric, when she's running, I can feel a solid "hit" when I put my hand around pump. Not sure if that is common. But, it's not " un time " w/ " the sound" or how that would transmit...is there a way to test that? Man, that would be a Blessing if that was the case!!!!!!!