I need some help here. I have a nearly new machine (12 years old but barely used, probably has run less than 10 yards of stitches). Here is the machine, and here is what is happening on the bottom.
Here is what I have done to try to fix the problem.
1) Replaced the Bobbin Case, which had been properly installed years ago an was broken.
2) Cleaned and oiled the machine
3) Replaced the needle, which was visably bent (once removed). None of this appeared to improve the situation, in fact, the "loops" on the bottom only appear to be larger than when I first tried this.
Any suggestions are welcome.