Hello,
how is going with Nagra 4.2 capstan lower bearing changing? I have the same problem. New bearing already have. Now need to make magnetic shunt tube to place rotor during re assembling. but it seams that there is mistake :"
keeper" tube of 40 mm in ID and a minimum of 60 mm in OD.
I bought new rotor its sitting also in some magnetic shunt tube, but inner diameter is 57mm.