I am not up on these engines. I just guessed on a broken crank due to being able to roll the lower pulley about a 1/4 turn with the belt with hardly any effort. It also has a knock in the bottom end when cranking. Do the balancers on these engines cause this type of problem
C- make sure thats a busted crank... if its the balancer instead maybe you have a usable car... but then who needs more projects, right?