Originally Posted by irishrose
I've opened the top and oiled my 301 several times. There is no gunk, at least not where it can be seen and the gears are well lubed as are the ones accessed by removing the bottom of the machine. I will look for some TriFlow.
Deplaylady, A 401A was made in Anderson, South Carolina. The 401 was made in the Northeast or in Great Britain.
I wonder how the machines differ? Big difference between the German & the American.
No gunk. HHHMMMMM no lint. no gunk. check the balance wheel gears. I had one once had a little lint in there - ran funny. Drove me crazy until I figured it out. Did you clean & oil the bobbin races?