Wiz and Eric,
I was able to get the assembly out. Cleaned it up and set it up as suggested. tried a few more stitches and it sewed great. However, as you said Wiiz, when I tried heavier material the problems came back. I guess it maybe time to start hustling some more so I can upgrade to a different machine. Unless I can find parts for this one. Still at a loss on where to order them as I can't find any info for this thing. What i have noticed is that some of my extra parts from the Union Special 61400A fit. (Bobbin and holder). The only reason I have been using this more is that it has a reverse and my Union Special doesn't.
Uwe,
I was wondering the same thing at first. I used the picture you posted and it looks to be the recommended left twist thread.