Mainsprings

[chadders1966]

Hi,

Is it possible to put a new hole on the inner end of a mainspring, where it hooks onto the barrel arbor? I've a couple where this has broken off due to problems with my winder. The simplest solution is just to get a new mainspring, but I am trying to learn as much as I can so thought I would ask. I've seen various topics in De Carle etc., but they seem to refer to repairing the outside end of the spring and the barrel. Thanks

Stephen

[Mark]

it is quite difficult to do this on the inner coil of the mainspring. It may be better to purchase a new one.

[chadders1966]

Hi Mark

I understand that, and I'm not saying I'm going to do it or even try it, I'm just trying to find out how it is actually done. Thanks

Stephen

[bobm12]

For the "academic" answer, I'd say, there is this pliers like instrument -- Geo shows one somewhere in the forum -- that allows to open a hole on a mainspring...now how to get to the inner coil and do it, that would be a trick! I would definitely go the way Mark suggests!

 

Cheers,

 

Bob