David McCallum has a book and DVD on the care and maintenance of FWs.
http://www.featherweight221.com/
I've ordered a maintenance kit (which includes a belt, drip pan felt, screwdrivers, needles, felt washers (for the spool pin), oil and lube) and a new cord set and a new pedal from
http://www.221parts.com/
I have 3 FWs - a black 1939, a Centennial model (1951) and a white 1950's.