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-   -   Help Please! Replacing motor shaft (https://www.rcuniverse.com/forum/electric-general-discussion-106/9657058-help-please-replacing-motor-shaft.html)

cleaner1 04-12-2010 11:40 PM

Help Please! Replacing motor shaft
 
I have the PNP version eflite 450 brushless motor on my mini ultra stick. I bent the shaft and need to replace. How do I get the bent shaft out of the motor?

Thanks in advance for your help!

jzrf6c 04-13-2010 10:14 AM

RE: Help Please! Replacing motor shaft
 
Here's what I did. First, I didn't have a 450 so mine was a little different but the mechanics should be the same. First, determine if the shaft comes out the front or back. Mine came out the front. I remover the "can" from the motor and then removed the clip from the rear. Next, I found a piece of hard wood (oak in my case). I drilled a small hole the size of the shaft in the block of wood. Next, I took a nail the same size as the shaft (could even be a little smaller but not larger) and cut off the end so I had a flat surface. A Dremel toll works good to give a flat surface. I then inserted the motor shaft into the hardwood so that it was just below the surface of the wood surface. Make sure of the direction. Your are going to drive the shaft out of the wood block. On my motor I inserted the rear of the shaft into the hole in the wood since I was going to drive the shaft out through the front of the motor. I then took the nail and placed it in the hole in the wood so that I was in contact with the shaft. I placed the motor on a vice so that the vice supported only the motor face . A few light taps with a hamber and out came the shaft. To insert the new shaft I just reversed the process.

I hope this makes sense.

cleaner1 04-13-2010 01:30 PM

RE: Help Please! Replacing motor shaft
 
Thanks a mill. Sounds like to me the shaft is pressed on. Am I correct on this?

richg99 04-13-2010 03:42 PM

RE: Help Please! Replacing motor shaft
 
Some shafts have a "C" clip on one end ( already mentioned above) and the other end is held by tiny grub screws....which are visible. First time I removed one, I had to go the the Hobby store to get the right size hex head for the minuscule sized grub screws.

regards, Rich


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