During the CIS to ITB EFI install on post #8 (page #1) of this thread I gave 2 lines to the work done to the distributor:
Once out, I disassembled the dizzy to reveal the mechanical advance and then used steel wire to wrap tightly around the posts holding the return spring on both sides of the dizzy thereby locking out the mechanical advance so that the ignition timing advance would be controlled entirely by the ECU. The dizzy was reassembled and reinstalled into the engine.
Today, I went back and dis-assembled the distributor to inspect the condition of the mechanical advance lock out wires I installed. I took photos of the process this time that I will share below.
Start:
Remove ignition rotor:
Remove Pertronix magnet from distributor cam:
Feed Pertronix wires out of the distributor housing:
Remove Pertronix hold down nuts:
Remove Pertronix:
Remove C-clip for vacuum retard diaphragm:
Remove vacuum retard diaphragm mounting screw (1 of 2):
Remove vacuum retard diaphragm mounting screw (2 of 2) - this screw also secures the distributor base plate in the distributor housing:
Remove the vacuum retard diaphragm:
