Good evening,
I just bought a really nice 746 and 746w set. Engine runs great. Tender wasn’t whistling after I cleaned it. I rewired it, only to realize that the relay tabs were bent terribly and I couldn’t save them. So I bought a replacement (but original) postwar relay. Cleaned the commutator again, along with the brushes and brush plate, and when tested it whistles loud…but only when idling. When I start the engine moving, the whistle won’t engage. I’m starting to suspect the pickup assembly isn’t catching the center rail enough while it’s running. Is this a common issue, and what’s the solution? I cleaned the wheels and even the roller pickups and still, it won’t whistle when running. Never encountered this before. Any info? I’d appreciate it. Thanks.
James
