Well, sending it back and forth until your face turns blue is always an option. Myself, I'd just open it up and find out what is wrong with it first. For what it's worth I don't know if Lionel typically replaces burnt wick in their repairs, as it is damage caused by user error. It may be that they do if they see it or are asked. I'd also want to check that the T stack and rubber washers are aligned correctly as it would be very easy for these to move in shipping. Again, only for whatever free advise is worth, the NW2 is one of the simplest engines to open up and have a look at.
JGL
