I have a sewmor 404 that was frozen. I oiled her up and let her sit. I did not touch her again for two or three years until my main machine was unrepairable. I was going to scarf the pieces off the sewer and go buy a new machine. But God blessed me and the machine works great using some of the pieces from the dead machine. So oil that baby up and let her sit for a while and see if she works. Also check out Billy's how to clean up the older machines topics. Very informative. K