By Tim Palmer
Early model Corvairs and 61-63 F.C.'s use the same type of turn signal mechanism. Basically all of the mechanical parts are up by the steering wheel and the actual switch is a foot or two on down the steering column. This switch is connected to the mechanical part with a sheathed cable.
The most common problem the turning signal is that it doesn't come on every time it is called for. The problem could be the switch which is still available last I heard, but most likely is just a dirty switch contact. To clean the switch it must be removed. This is the procedure:
Another common problem involves the mechanical part of the turning signal. It's symptom is a loose feeling turn signal lever. The reason it feels loose is because it is loose, or at least the part it screws into is. Within the turning signal mechanism is pivot for the whole thing to swing. The pivot is basically a long screw with a shoulder. This frequently becomes loose over time. The procedure to tighten the screw is as follows:
If the screw repeatedly loosens and requires re-tightening, you may want to put some LOCTITE type product on the threads to help hold it. Do not put any on the shaft.
There are other problems with the turning signals but this should cover 90% of the problems.