Hope you purchased that on a credit card less than 60 days ago. Remedy for that is not your problem. I would not spend one minute on a solution. Return it. If you charged it less than 60 days ago put a hold on the transaction with your card company while replacement is sought.
I have had problems not as wierd that were related to axel holes bored into the drive wheels of a die cast steamer which were a tad off center. Also had one where the axel holes where not in alignment in the chassis frame.
I have watched these bad pieces running at York on the manfucrtures demo table and no one even commented on it??????
Bad rides can show up in non suspended diecast loco chassis more readily than sprung brass chassis IME.
If you are stuck with it send the video and an appeal to Lionel. (hope they do not think it to be "within accepted standards").
