MG Car Repair: 72 MGB turn signals not working, turn signal switch, turn signal flasher

Question
I've gone through the schematic; new fuses, clean contacts, new flasher unit; new turn signal switch.  I have power through the turn single switch (in and out, but no power to the new flasher unit; and no turn signals.   I can't determine where the issue is?  Do you have any suggestions?

Answer
Hi Trip,
It is no use replacing any parts until you know what is wrong. If you look at your schematic you will see that the four way flasher switch is what supplies power to the turn signal flasher unit and the flasher unit is what supplies power to the turn signal switch.

So read your diagram and correct the main and Ignition power to the four way flasher switch.

Howard