I just bought this decent condition. The leafs seem loose while in closed position...am afraid it would leak light.

I did remove the felt and cleaned some rust spots with bit oil (maybe not so good idea) on the back side. Am thinking to unscrew front cover to open this up so I could tighten pivots and clean any rust. Is there any precautions doing this? Are there any risks that pieces from inside might fall apart like fine clock work ? Also, any suggestions on how to keep leafs nice and tight w/o gaps? Large size Packard is hard to find, so don't want mess it up.

Packardshutter dot com guy did not like #8 and offered absolutely no help. Don't know what's wrong with #8 dual piston?! I wish there are more step by step how-to videos about Packard out there. Maybe I will once I know how to do this. Also, am thinking to spray some durable rustoleum enamel paint on the back side to prevent future rusts...is this ok idea?

Thank you ahead!