We had to do some engine work to our 843. When putting the motor back in everything was turning freely (The Crank and Flywheel). We know this because we had to turn it a little to get the splines to line up. We bolted down the motor and attempted to start it. The starter engages, but then clicks and stops. We tried to turn the crank and it will not turn. Is it possible that we have a Hydraulic lock preventing the flywheel to turn? If so, how can we check, and how do we release the pressure? Any help is appreciated! Thanks!!