Reply to "Failing Couplers on Lionel Husky Stack Car"

GregROGR Forum Member

As the repair tech at our LHS, I have had several of these cars exhibiting this issue. The problem was traced to a zinc pest induced axial elongation of the coupler arm which caused disengagement of the coupler knuckle. Basically, the coupler arm grows in length slightly and a the knuckle pops open and stays that way. Sometimes you will see tell-tale alligator type cracking and flexural warping too. There is no repair that can realistically be made except for replacement of the trucks.

5/16/187:31 AM

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