This is a lovely, old machine and you should be proud of it. DH says one of these will wear out 4 ladies and he is probably right. They were built for the millennium, at least one. The motor caps are a primitive form of plastic and it wasn't as good as today's plastic. Any sewing machine shop, in business for quite a while, should have some in their archives. The most important thing: just tighten them hand tight, not tighter. Over tightening with a screwdriver causes them to break.