Yes,
It is broken across in the middle. The little spring seems to have been shaved off from the main body. If this is true the chisel or cutting tool had to be quite thin and very hard.
The piece broke right at the base of the spring, where it was the thinnest. The spring is not as elastic as one would expect a regular spring. One can bend it at the base a little so I suspect the steel is not really spring steel, but rather lower carbon steel.
The spring could have been cut from the oposite side and bent into a V, then hammered into the body of the cam? EDIT: Like Will suggested above.
What I did was to replace the shaved spring with a separate small V spring that rests its V in a shallow notch cut in the body of the cam.
Last edited by Sliver; 07/08/09 10:26 AM.