After repainting my '75, the turn signals don't work. Must be a wiring problem. Here's what I know. Parking lights come on front and back , Euro park feature works left and right side front and back (so flasher part of bulbs work). Relay has been replaced. Fuses checked. 4-way flasher doesn't work (obviously). Single green turn signal indicator on tach stays on constantly when ignition switched to accessory or car is running. Thoughts? Your suggestions are much appreciated.

I think you said it. The flasher unit is dead. You must get an OE part. The universal four prong flasher from your FLAPS won't work.