Hey all, I need to replace the timing gear cover on my '51 8N. I got it all knocked loose, but the crank pulley is in the way, so I need to remove that now. As you can see, it has a large hex bolt in the center. I think I could bust that loose with an impact wrench. My questions are: do I need a pulley puller to remove the pulley? What is a good way to tighten the new bolt? Any additional help is appreciated.