Quote:
Originally Posted by stampede vxlboy
its fine when the pinion off but start doing it when i spin the wheels by hand that all but sound good when running it .but by hand it sounds like cogging when the wheels stop spin
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It's something you will see and feel more than hear, from what you have said, i'd put it down to cogging of the motor. But it's worth checking for any debris or damage to the spur or pinion - just to be sure. Make sure the motor feels to be turning by hand properly too.