A while back, I made this post about trying to fix the malfunctioning bobbin-winder on my antique Singer sewing machine.

Despite my most determined efforts, and my initial success, it still failed to work flawlessly all the time. It kept jamming or loosening, and none of my adjustments worked well enough for it to be a lasting repair.

 In the end, I completely disassembled the winder to see how it was put together, and what were its component parts.

It assembles in this way:

Nut – Bolt -*WINDER-ARM* – Bolt – Washer – Toothed Wheel – Heart-Cam – Bolthead/screw-head.

My attempts to fix the jamming and loosening by adjusting the nut at the end of this assembly were unsuccessful. On a whim, I added a second, small, flat, round brass washer into the mix, between the bolt and the main wheel, but still kept the original washer (a flat, thin, slightly concave piece of metal) in-place. My guess was that the original washer was probably damaged or worn out from 70-odd years of use.

I reassembled the ‘new, and improved’ bobbin-winder, with the additional brass washer in place, and screwed everything in tight and firm.

And that has made all the difference, so it seems.

The addition of one small piece of metal has had the most remarkable, and pleasing result, in that the bobbin-winder now works 100% flawlessly! I’m very pleased with the results! Yay!!