Should be a bolt on the front of the crank on the pulley/harmonic damper. Put a socket and breaker bar on that bolt. Turn the whole thing clockwise from the front. Keep plugs, out, squirt in some WD-40 or similar, liberally, let it sit for a few minutes. If it wont' turn try rocking it back and forth. If motor is OK, it will turn by hand.
Took apart a big GMC V6 with bad bearings a few weeks ago, even then I could turn it a bit, (but not easily).
