Gregory said:
I think Ypedal may have a video about re-gluing magnets on the rotor.
Thanks, I found the video and watched it. Interesting. I notice even though his magnets came loose they were still stuck on there really good like mine. So it seems obvious that my magnets unglued as I can move them around. Unless of course I broke them loose by pushing out the stator. Sometimes when pushing out the stator it goes off center a lot maybe cranking down on that gear puller was able to break them loose, I just honestly don't know.
You can see from the original pictures I took of the motor opened, the magnets were all lined up correctly. I have not run the motor since then, I only put the motor back together and took it apart. I'm going to think pushing out the stator shouldn't break the magnets loose, even if the stator is pushed out at a bad angle.
I did notice one of my magnets was cracked and separated, I was able to push it back together. Although Y-pedal says that this messes up the polarity or something.
I'm thinking maybe I should get new magnets if that is even possible. With all the trouble here I am thinking my motor is perhaps FUBAR.
Do you think maybe I should just put it back together and ride it again? It seems with the new covers nothing was rubbing.
EDIT: one thing that is interesting he said is that he was able to ride home, however when he gave throttle there was no grip so the magnets spun internally. Is it possible from the video in my first post that the noise you are hearing is actually the magnets spinning internally? That would explain a lot.
Maybe, my loss of power is actually the magnets all spinning internally and that is why during hard acceleration from a stop I was noticing a rubbing noise. When my motor got some speed going I was able to go top speed without rubbing because the magnets were strong enough not to move.
What I don't understand is that, what happens to the magnets exactly if the epoxy failed? Will they really just spin around the inside of the motor?
The other thing is once the epoxy failed, why does it seem that when my motor heats up it is more likely to lose power from the start or going up a hill from a stop. Basically, it seems the magnets are more likely to spin the hotter the motor is. Once that epoxy fails, wouldn't it just spin freely? Or possibly the epoxy cold is acting as a rough surface so the magnets are less likely to spin around?
Here is what I described some weeks ago, this is actually from page 1 post. To me this seems like the magnets are all spinning inside the case.
http://endless-sphere.com/forums/viewtopic.php?p=914862#p914862
What seems to be happening is as the motor heats up it somehow loses power so that if I give it full throttle from stop or moving slowly the motor won't propel me forward and just make a buzzing sound. Easiest way is if I am stopped on a hill, if I go to give it throttle the motor just buzzes and doesn't have enough power to turn.
once I get moving, I can give full throttle and it works normally.
EDITED Again: Found a very similar problem from someone else. He has all the same symptoms. Here is the first post, then the next page it is discussed a lot.
It seems his issues get worse with heat or doing a steep climb.
http://endless-sphere.com/forums/viewtopic.php?p=761805#p761805
What do you think? If the magnets are spinning inside the case, does that mean they are also rubbing the stator?
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