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Roomba side brush motor repair..

Scarpozzi

Lifer
I've got a Roomba 665 (I think that's the model) that I bought. I replaced the side brushes with some I got off ebay and the screws were threaded differently. They quickly stripped the nylon/soft plastic threads in the motor. I've been trying to repair this thing for ever, but keep hitting snags. I've tried a few types of super glue and gorilla glue to fill the hole and basially retap. I read that epoxy doesn't work well to do this kind of repair. I tried super glue, but it cracked an came out.

Gorilla glue forms small air bubbles in it as it cures....almost like a foam. This was good because I was able to add a little more as it cured and tamp down what was there without it sticking to the dentistry tools I used to pack glue down. It worked for a few cleanings, but eventually it couldn't handle the torque. I found a youtube video with a guy using bondo, but I don't have any and he never posted back to say whether or not it held up. If I can't fix it with glue I have, I'll put up $30 and replace the motor....just curious if anyone has any other ideas on how to repair it (or a source of good motors that are less than $25-30)

=P
 
Pics ??
Possibly Clear Gorilla Glue, no air bubbles or foam, so it should be "tappable".
I've used it on acrylic and lexan to repair some tapped through-holes, but never nylon.
 
Maybe this ?

with this -
Yeah. That's the part. They're $26 on eBay and Amazon, I'll see what shipping costs.

I'm tempted to disassemble mine and see if I can replace the screw hole with a brass sleeve somehow if they sell something at the hardware store. That way it can handle the torque.

I'll see what other flavors of gorilla glue I have. I think the kind that got the air bubbles was original. It sort of turns white when it cures.
 
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