Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Thanks @Stoker!

Here is another YouTube short video I did in my Atlanta Midtown apartment, runs so much better on smooth floors vs the parking garage concrete. One thing about this early No. 646 is that it has to overcome the roller's resistance on how it is attached to the bracket.  It has two screws on either side, that are held in place by square nuts on the inside of the bracket.  The screws, which are just regular screws poke into the brass roller.  My brother's later model No. 646 has a long brass screw, which just enough threads to get the nut on the other side.  So its roller is smooth as silk.

Anyways, here's the video - very pleased on how well it is operating and that I got all the various leaks sealed.

Edit: Changed to updated video after adjusting the brass roller's screws & bracket.  The brass roller has two screws on either side, so one was trying to unscrew itself and the other side was trying to tighten itself.  So I did some fine adjustment on the screws and bracket, then used medium Red Loctite to keep them in place.