Thanks for the guide!
I had a problem with my left mouse button clicking. I ended up having to open up the teal click box and adjust the shape of the metal that makes the contact. Over time the shape took away the click's proper action. A little metal bending and it's clicking like new.
Also, to make working on the board easier, you can remove the connection from the battery to the logic board. That way you can get a good look at the guts of it.