On reading the install instructions for MSD ignitions, they specify that MSD units cannot be used on cars with CD ignition systems, only inductive systems. This appears in both the MSD 5 and MSD 6 instructions.
I have an MSD 5 I was going to put in my 69T. On checking my Haynes manual, it states all 911s from 69 on have CD systems. Yet, so many are using MSD units.
First, off, Haynes shows a CD unit mounted on the sidewall. It is large and has heat sink fins running vertically. I don't have this. Also, on tracing the wires from the coil, I can't see any that appear to go to a CD box. When I turn the key, I don't hear any whine... just the clicking of the fuel pump which lessens as pressure is reached.
There are three wires on the coil. Red on the 15, goes up the left side, into a rubber wire hose and around the front of the engine. The other two are both black, one goes to the points, the other runs across the top of the engine to the front of it and enters another rubber wire hose and not sure where it goes from there.
I have attached some pictures.
Questions:
1. Do I have a CD ignition? Could this have been made with an inductive ignition? (Euro car). Could the PO have removed it?
2. What is the square silver box on the sidewall, the manual does not identify it? Anything to do with the ignition? Squarish black wire harness on the bottom, but can't trace their path.
3. Will I be able to put the MSD 5 on my car? It's only 4 wires, one to points, one to ground, two to coil.
PLEASE HELP!!
Thanks a ton!!!
Jim