Originally Posted by
logofflater
Under the needle plate are two positioning springs to keep the bobbin case from rotating. Are you sure yours aren't tired and need to be stretched back? One of the 221 web sites has a short tutorial on how to do it.
Edit: This is what I was referring to.
thefeatherweight221factory.com/Documents/Clicking%20Sound.pdf
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Please be EXTREMELY careful if you try this. Mine was doing the same thing and and that 70 year old piece of metal broke off at the bottom of the spring. Dave McCallum told me it wouldn't hurt my sewing, but I am still bummed that my machine is not perfect anymore. Please stick to oiling and checking for threads first. Featherweights will have a tiny amount of clacking, anyway, especially if they are on a hard surface that echos. Me and a couple of gals from the QB took a six hour clean and tune class with him yesterday.