Originally Posted by
Quincunx
The B type bobbin winder still is slow to spin and a bit rust spotted. I think I should probably take that one all the way apart.
It should be taken apart routinely as a part of your rehab. Even the bobbin tension spring should come off and be cleaned inside and out and put in a new oil wick. It is a pain to do but that is the only way you can be sure the machine runs right. There can also still be lint inside the bobbin area causing it to not turn freely. It would be time well spent.