brushless motor screeching - RCCanada - Canada Radio Controlled Hobby Forum
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Old 08-14-2010, 03:03 PM   #1
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brushless motor screeching

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Im wondering what could cause a brushless motor to whine and make ugly sounds.

went out to the track, the car was a little slow.. than noticed a noise. it got 100x worse once i inspected the motor, with the motor removed, it makes a screeching, almost a grind sound. everyone at the track was going

im going to wd40 it, but other than that what can i do to check out the motor?

i dont have another motor to try to test the ESC.

also, i was checking the screws for the esc, tightened one and it seems to have broke where it grabs. its a tiny tiny screw, the threads are maybe 1mm, and uses a small hex. i doubt it, but could i have cracked the pcb or something? from what i can tell, the esc works, just the motor is having issues.

going to order a new esc and 2 motors i think.
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Old 08-15-2010, 08:16 AM   #2
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I would think all you need to do is change the bearings, maybe even just pull it apart and clean it well.
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Old 08-15-2010, 03:58 PM   #3
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seems like it was the bearings. i hadnt taken it apart to see how it works yet.

all fine now.
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