I was telling a friend of mine I ordered a new Intermountain F7 from Ebay. He said, the ones he ordered were so packed with grease they wouldn't move. I already have 2 of these locos and they were fine so I wasn't worried but it came yesterday and it wouldn't move. It's new and should be moving. I know the decoder works so I remove one of the trucks and it's packed with hard green grease. Why this happened I don't know. Has it been in the cold for a long time? I took out the worm gear and soaked in in alcohol then used a stiff brush on it and still couldn't remove it all. I finally got it to run but not real well. Now I have it sitting on the furnace hopeing to warm up what ever is in the gear box. Maybe that will work?