Removing / replacing V-brake spring assembly?
 

Is it possible?

I don't see how to get the spring off / the assembly apart?

Brakes vary, but basically once the arm is off the pivot you can disassemble it and remove the spring from the back.

The challenge is getting replacement springs. If you can find he right one, buy a pair so they're a better match han a new and used one would be. Often the best source for parts like these is in a local shop or co-ops junk brake bin.

How do I dissasemble the spring once I get it off the bike?

As I said it varies brake to brake, but most aren't attached to the arm. They're loose and simply trapped between the arm and the boss. If you have halfway decent mechanical instincts, remove the arm and take a look.

BTW- why are you asking?

It's off and the spring assembly is still attached ... I got a set of arch rivals but the pin the gives the spring purchase, that goes through the frame next to the bosses (the three holes) — that pin is gone from both sides of the brakes. So I wanted to try and take the assembly apart, and the assembly from a donor set ... or at least the pertinent parts, if possible.

Does that make sense?

As I said not all brakes do it exactly the same way. From your description, I suspect that your brakes use a spring stop cam behind the arms. This usually goes through the aluminum arm all the way to the front. But it's a slip fit and you should be able to push it out.

That's what I needed to know. I had to pry a cap off the front side and then it pulled through ... you're a gentleman, sir!

Thanks...

N/m