Quote:
Originally Posted by joebog1
Hmm I dont want to start an argument, but I believe that the cap must stay put after starting, i.e. the motor requires the phase shift all the time.
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No argument at all, spot on, it is a "motor run" capacitor not a "motor start" capacitor. It provides the phase shift required to create a partial 2 phase rotating magnetic field.
Another way this can be done for a single phase AC motor to acquire field rotation is to shade a pole with a thick copper shorted turn. Most small AC motors you see in ceiling ventilation fans are like this.
(use a 400 or 600V 0.47uF poly cap will be fine and you will have no trouble with it)
This type of thing fine (the ebay reference is just for the image and type of part that would work):
https://www.ebay.co.uk/itm/FILM-CAPA...oAAOSwvtFZ16Qp