just came back from a relaxing 10km Sunday evening run and plugged my board into the charger.
I checked the belt and noticed that there is a noticeable wobble in the rotor of my SK3
Is that normal wear or did I somehow damage my motor?
Can this be fixed?
@Michaelinvegas please look at the space between rotor can and mount - the spacing changes. If you need a longer video I can record one but it is just the same thing happening over and over again (maybe I should put this in a gif ;))
circlip (is that what you meant with e-clip?) is still there.
I am more worried that it might be a bearing that is damaged.
During my ride I did NOT notice anything weird - so not sure if this issue is actually a big problem or just ācosmeticā or even normal for outrunner motors.
You canāt see much in video so quick. Do u hear rubbing inside when turning by handā¦how bout when going really fast? Could be unbalanced and get worse at speed maybe the little screws holding the rotor to shaft in back of motor are loose?
Yeah you see those small black screws close to the shaft? One of those is the one I hold in my hands in the picture. It is shorter than the other two and canāt be put back in because the thread is blocked by the remaining piece.
Ok so this thing is a pain to open. Stripped one of the 4 screws on the side holding the rotor and stator together.
Also bent some of the lid edges while trying to pry the motor apart.
Then used a 1.5mm drill and EZout to remove what was remaining of the broken screw.
Now I am scared however that metal dust got between the coils.
Will see if it moves once I get home today.
Is there a test i can do to make sure there is no damaging metal inside the motor?
Get the little circlip off, open it up, and clean off the magnets which will attract iron. If u spin it and hear grinding itās in there. Or blast it out with compressor. Donāt bend the rotor
I had it open - donāt want to go through this again.
Thus I used compressed air to remove dust and particels.
However when I hold it close to my ear I can still hear some faint grinding noises - can that be a bearing or somethig else? How loud would grinding metal be?