This is to update the comments above about Lionel train engines pick ups hanging up on Marx 1590 metal switches. The Thor link is down probably since he is deceased and no one has picked up hosting his former great site.
From page 1, post 5 of my topic https://ogrforum.ogaugerr.com/...ra-027-layout?page=1
Marx 1590 metal switches have one short coming in that they will not pass some Lionel train roller pick-ups without problems (usually the pick-up roller gets stuck) due to the center rail large gap near the frog point. This problem is easily solved by installing a 3/4 inch piece of a finish nail (cheaper) or a 027 rail pin in the two center rail ends of switch as shown in the following pictures. This will fill the center rail gap and keep Lionel pick-up rollers from hanging up or losing contact on Marx 1590 switches.
The center rail of the straight track shows one inserted pin and switch in straight position. Note how the pin fills in the straight center rail gap.
The center rail of the curved track shows the other inserted pin and switch in curved position. Note how the pin fills in the center rail of the curved section.
Charlie
