Originally Posted by rpoitras

That nut should be more than enough and definitely no need for any additional tool. It really didn't take that much power to turn the engine. I turned it clockwise which is normal rotation for the engine, but I don't know that it matters any way.

So, just a quick run-down on how I get the a/c belt on. I did this with the fan removed to give me access. From on top I put the belt around the main pulley then on the a/c pulley I wrapped it around the bottom going towards the top as far as I could. Then, while holding that belt tight against the a/c pulley I would slowly rotate the engine cw. The belt slipped a couple of times but without me realizing it kinda just popped on at one point. Once it's a on a bit you just need to keep rotating the engine while guiding the belt on the pulley a bit more. It took no longer than a few minutes before it was totally seated.