The Sewing Guy,
You will find this group to be more knowledgeable than some. Most of us own many or at least a few ancient to vintage to classic machines and repair and maintain them ourselves. We tend to "adopt" them rather than "buy" them.
So although what you said is one way to do it, as you've admitted it's not the right way to do it and that got us kind of in a tizzy.
I understood your second post and will let the subject drop.
However you could post some pics of your shop or some of your machines. We are a photo oriented bunch of folks and love to see pics of all kinds of older machines.
Joe