Yesterday I started cleaning, oiling and testing the machine. I didn't get far. Looks like some touch and sews came with rubber feed dogs. Mine is one of them, which explains the dried goo I found stuck to the feed dogs and needle plate. It was what was left of the rubber.
I found replacement rubber ones here:
http://tandtrepair.com/SingerFeedDogs.html so I can fix it but what I would really like are the metal ones. Does anyone know if the metal ones shown will work (or can be easily modified to fit) on this machine?
Rodney