My Lionel conventional Pennsy Flyer 4-4-2 #8632 has been a solid engine. Never a problem. I had it restored earlier this year which included a new "puffer" smoke unit.
Lately I've been having issues with the engine binding up. I suspect this is related to the engine's drive rods actuating the "puffer" on the smoke unit.
Before I take it in, I remember this being a common issue with the 0-6-0 Dockside. Anyone have issues with the 4-4-2 puffer and what was the fix? Also, has anyone tried to install a fan driven (MTH) or Seuthe (a la Williams) smoke unit in one of these suckers? Good results? Will either alternative fit?
Thanks!