Consew 227 Needle Hitting Bobbin Case

[Northmount]

Also, the tension strip/spring should have a smooth curve to its shape. Make sure it is not bent.

[YinTx]

Northmount,

Thanks for that. I did previously remove the strip entirely, it does appear to have a smooth/unbent shape, and does appear to clamp down properly when the screw is tightened. There was nothing under it to cause problems. I am tightening the one closes to the exit of the thread as it is the one that makes the strip flex. I had thought the thread was going under the tension strip, it was hard to see so I did verify, it is going under the tension strip. It is still freewheeling.

YinTx

[JLSleather]

Does the 227 use a spring inside the bobbin case? If that's missing, that will allow the bobbin to "spool"

[YinTx]

The more I looked at the machine in operation, the more I became convinced there was something wrong with the tensioner spring in the bobbin case, so I removed it and tried to flex it.

Not really a spring steel metal as you might expect, since it bent easily. So I gave it a bit more of a curve, and reinstalled it. Voila, there was a bit of resistance on the bobbin thread once again, and I could adjust the tension by tightening/ loosening the screw. Success there! I feel the tension is still uneven as the knots don’t alway sit correctly on a single run of 2 foot stitching, but it is much improved. If I can find a new one to replace it, I will. Any ideas on further improving tension consistency would be appreciated.

Thanks,

YinTx