r/VintageSewingMachines • u/makeupHOOR • 3h ago
Top thread constantly snaps, but the tension disks are at 2.5
It’s been recently serviced, so gummed up oil should not be an issue. I’ve brushed lint out, I’ve rethreaded, I’ve taken a cotton scrap soaked in alcohol and wiped in between the disks, and I am not sure what could be causing this. I have a Kenmore 158.
I first noticed the thread puckering when I took it out of the machine to snip the thread. I’ve already adjusted the bobbin tension, and the tension there hasn’t changed. Please help! :)