First clue.
To make the gravity-wheel react to gravity you need to create an overbalanced situation.
You can do that on a clockwise rotating wheel, by placing each weight further outwards at some point between twelve o'clock and six o'clock, and closer in, between six o'clock and twelve o'clock.
To make the wheel continue to overbalance you need to bring the weight which is further out, back in again, at or close to six o'clock. Then you have to make it move out again, between twelve o'clock and six 'clock. Elementary my dear Watson.
