I was renting a place that had a washer and dryer set from the early 60s. It worked wonderfully, until one day the washer wouldn't cycle properly. I tore it apart and there was a stack of plastic gears that ran the state machine for the various cycles, one them was worn.
I didn't have the means in 2000 to disassemble the gear pack and a replacement couldn't be found and god I tried. The land lords endedup scrapping both machines and replacing it with shoddy new stuff that didn't work as well. A total shame.