Reply To: mainspring replacement

[arutha]

When replacing mainsprings the main thing to remember is that new steel is always a bit stronger than the old steel used in mainspring manufacture so if you are replacing a spring with one of equal thickness it will be slightly stronger. In most cases this is fine. If you can see one that is the correct dimensions but is just a fraction thinner you will end up with the right sort of power. If you can find nothing else that is close to your original spring I am sure this longer one can be shortened. Hopefully Bob or someone has a technique for this?