Singer 111w110 issues

[magilla]

I purchased an old Singer 111w110 sewing machine to sew some light leather projects.  I was looking for a Juki or Consew, but this one came up on MarketPlace and was a good deal.  The guy I bought it from didn't know anything about the machine, he buys what's left over from estate sales.  This machine was mounted in an old desk, very poorly, but had a consew servo motor.  He also had another Singer machine in a vintage sewing machine table.  I got the 111w machine, servo motor and vintage table for $250, which I thought was a great deal.  When I got the machine home, I started cleaning and oiling it to see if I could get it to sew.  The table I got with it was for a smaller machine, so I had to cut a bigger hole to get the 111w to fit, but I haven't got the motor hooked up yet.  So I am just turning it by the handwheel now and something seems like it is bound up, it turns with more effort than I think it should take.  Also, the needle and middle walking foot kind of jump forward as I turn the handwheel.  I wasn't sure if I could post videos here, so I put a short on Youtube below.  If anyone has any ideas on what to check next it would be greatly appreciated.  I did see some thread jammed under the hook mechanism and was able to lift if up and remove the thread, but that didn't seem to make any difference.  The main belt has been replaced at some point with a neoprene belt, so it apparently has had some maintenance in the last 80 years.  I have oiled everything that seems like it takes oil and tried playing with the foot pressure screw, both loose and tight.  Also, the threads on the arm shaft that allow you to set the stitch length are partially broken/missing like most early 111w's.  I tried playing with the settings on the stitch length adjuster and that didn't change anything as far as the binding.  I also found that the 111w110 model is not very common, I couldn't find out much info on it, other that it appears to be a variation on the 111w101.  The serial number dates it to prior to 1940, maybe 1938 or so.