Originally Posted by
pinkCastleDH
The k part of the 327k indicates it was made in Scotland.
If you're getting some movement but it's locking up I'd suggest starting disassembly with the bobbin area as the easiest area to work on that seems a likely culprit.
Yeah - take it down bare and clean - look in the upper parts too - some times those freeze up pretty good. If you have rust you have fun... Best get that soaked off. For heat, I have used socks filled with rice - nuke it a couple minutes and stick it as close to the culprit as you can - once it gets good and warm try turning it. I don't like exploding sewing machines or singed hair... The rice socks will put out some moist heat so beware.