Yeah I plan to keep it air cooled for now.
I might eventually water cool it at moment I am keeping things simple and then go from there.
This is just my spare motor as the one you saw before is going in my mono and this motor it just to learn on and maybe make a boat out of later on.

Thanks for the tips on how to get the rest of the baffle out, I will give it a try and see how it goes.

I'm not sure if it is cadmium or not but I plan to strip it down to bare metal and then silver solder it back together.