Dear Ron, We saw this sort of problem on worn byzantine chains
sometimes. Customers would come in after constantly wearing the
chain for several years and be disappointed when the chain had
stretched and various links were rotating out of position. If the
rotation happened here in the shop during repair, I could generally
manipulate it back into position. The trick seemed to be to relax
(both yourself and the chain!) and move the link around to let the
link to find the same position that allowed it to slip out. Forcing
the link will almost never work. It takes some time and definitely
some patience. If the chain was very worn, the link could generally
be made to go back, but not to stay permanently.
I wish I had better advice for you. I sympathize with your
situation.
Brenda david lee jeweler Mason City, Iowa, where it has turned off
quite cold and we finally have snow.