Good afternoon all!

I recently bought a Mato Tiger 1 and have been putting together my Franken-Tiger over the last few weeks. Not using any Mato stock electronics, everything has been replaced with Taigen "innards" and an IBU2. After finally getting the board put in, and mato motors soldered and connected came the maiden test drive. After about 5 feet, the drive sprocket bolts came out. While this isn't a hard fix by any means, is this a common thing? I also noticed the idlers are all wobbly when driving.

Some other questions:

As far as installing other parts (i.e. speaker box, turret rotation module, etc.) is it best to use glue or would I be better off tapping the holes and using small botls?

When putting in the plastic tubing from my smoke unit, glues have not been sticking so well to the metal. Any suggestions to a better hold?