I've got this 5700 KV castle brushless motor that gets way too hot. I'm not the original owner so I don't know it's history but it was noted by the last owner that he noticed it too and never really ran it much. It doesn't seem to matter what voltage or pinion it's running and will get hot pretty quick completely out of the car.
I had it in a stadium truck and in 20 minutes with the smallest pinion I could use it got to 250 degrees. I know this is way over anything recommended but I have to ask.
At that temperature was this one permanently damaged? I see it can be opened up but is it worthwhile to even try to maybe fix it? If I do open it up is there something to look for as far as it being repairable or not?