possible to repair stripped crank arm? ( square mounting hole )

[ummagumma]

I have an aluminum Cooks bros crank with a bad mounting hole. Is it possible to repair these at all?

Thx!

 

[greencat]

I've not heard of one. I remember using a bit of coke can as a shim back in the 90s. It didn't work for very long.

 

[kingbling]

Chemical metal and a spare bb axle

Use chemical metal to fill in the hole not fully only on the worn parts of the crank arm and BEFORE it sets cover bb axle taper in grease push it in t hole using that to mould the CM to shape make sure crank is square clean off any excess CM and leave to set

 

[ummagumma]

That's a good idea, thanks for the tip!!