Marx 490 locomotive and tender O27 gauge Tested Runs. This locomotive does run and fairly well for a 60 year old locomotive. These Marx engines run forward only. The locomotive does appear to be slightly out of alignment. You can view the photo of the bottom of the locomotive to see this. There is rust on the side rods of the engine. The tender is not the one that came with this engine when it was new. Someone glued loose coal in the tender. Please view all of the pictures and ask any questions before buying as this item is sold as is.