Got everything lined up and put back together and the engine wont turn. Tried socket on the crank pulley bolt and was frozen. It would tighten a bit but not turn. Took it out and took off pulley.Put bolt back on end of crank and all turned great. Took off timing cover and did same with and with out pulley. Turns great with out pulley.All marks are lines up on chain and pulleys and cam shafts -still. I can put the socket on my other tracker and turn the engine and accessories. This one though just tightens when on. I did check to see if the key was not lines up right.