daa, Just posted a reply on the other site re Contax 'mirror slip' then thought I would check this one out, as it seemed to relate to the same problem, and it does. I have not used either of my 167 or AX for some months so I will get them out to have a look. I was set on getting another Contax to go with the other two, but I will definitely put things on hold now.
However, any useful information re this problem, and the potential cost of such a repair, from anyone out there, would be appreciated.
Thanks.