Do I need to go through all these steps if I only want to tighten the hinge on my Macbook?
Installing MacBook Core 2 Duo Hinges - iFixit
Installing MacBook Core 2 Duo Hinges - iFixit
The link you provided is the iFixit Macbook tutorial!
For installing hinges, not necessarily tightening them. Some things require more work, which I didn't know if it was in this case.