I found my childhood Lionel 1615 engine and some cars. I bought some track and a new transformer, and confirmed that the engine does activate, but will not move yet. I need some detailed info on how to clean and oil/grease the engine before I go any further. I also want to clean and maintain the cars, so info on this would be appreciated. I am so excited about this and the prospects of starting this as a serious hobby. Thanks y'all for your help.