ArchaicArcane,
Just a question.
Looking a little further in the tutorial, it shows how to properly adjust the bobbin position finger to keep the mechanism working, and somewhat quieter:
The screw hole in the plate is larger than the screw, so that although the plate is held firmly in the notch, the bracket underneath can be moved from side to side. It is essential that, when the screw is finally tightened, there is a small gap between the back of the bobbin holder and the position bracket to allow the top thread to slip through unhindered when the stitch is made.
How big should the gap be? And what do you use to adjust it? I got one to replace the rusted one on my 99K and it came to me with the lever removed. I put it back where it looked like it was, and the machine sews but I'd like to make sure it's right.
Oh and what section in the TFSR manual is this info found?
Joe