Hi Dave. Thanks for the response.
The engine was new to me. It came in the decayed condition, so judging by the wheels and rollers, I doesn’t appear to have been ever run.
The possibility of zinc pest in the motor/gear block definitely crossed my mind. The block didn’t appear to be distorted, but it wouldn’t take much to throw the wheels out of whack.
The gear block seemed fine except for the one axle on each truck being seized. It was the inner wheel set on both trucks. The wheels seemed fine too.
I was hoping to hear if people have ever had the same experience. I am hoping it was simply a production error and not widespread…
Tom
Tom