Any question answered...

So... my brake caliper wont recoil. Brake engages, brake stays on until tyre/rim wears down enough for it to not rub. I cant see that little curly spring thing that resets it to the off position. Whats the go here? Can i get a replacement spring thingo?

How easily does the cable move in the outer?

Is the return spring correctly engaged behind the little holders - so it actually pushes out when the cable is loosened?

Are you sure you're not riding brakless?