OK, so I just thought of something I might have done wrong: When I got the upper intake manifold loose, one of those little chrome pins (there are 6. Don't have any idea what they're called) in the manifold kept falling out. In fact once it fell down the manifold, but I managed to get it out with a magnet. Antway, by then I was getting pretty frustrated, so I put some gasket sealer on it, and stuck it back in, and it stayed. However, now I'm wondering what those pins are, and if they're supposed to be able to move. That's the only thing I remember that I possibly did wrong. Thoughts?