I work for a gas station that has an LGB train set that used to run through the store but it hasn't run in 10 years. I think the model of the engine is either 2018D or 3018D. It pulls 4 cars. We cleaned the track and it ran fine for a couple days. Now it will run when first started but it will start to squeal a bit and jerk and make noises like it is grinding on the track. I have no idea what could be wrong with it, maybe the motor or a lube job? Like I said, it sat for about 10 years so with the exception of the track being clean I have no idea of the history of this set, but I really want to get it going again because kids come into the store and look so bummed when they see the train just sitting there. A lot of their parents remember it running and I think it would be great for the ambiance of the store to get it going again. Any ideas would be great. Oh, and my boss made it perfectly clear that he is not putting another penny into the train so any cost will come out of my pocket or from the donation jar that I put on the counter at the store. So I wouldn't like to just start replacing things haphazardly.