IML: 56 Ignition Problem

[Jeff Cantor <jcantor791@xxxxxxxxxxx>]

I've determined that the primary cause of my poor performance  
recently is burnt points and a dyeing coil.  Some investigating has  
lead me to believe that the route cause of these problems is that,  
while running, the ignition system is getting the full battery  
voltage of 12V rather than the 6-8V that is is designed for.  My  
question for the group is where to go to correct this problem.

The first and most obvious culprit would be the coil or ballast  
resistor but both the original one and a replacement I installed  
appear to have approximately the correct resistance and produce the  
same result (12V across the open points when the key is in the one  
position).  This leads me to believe that whatever part of the system  
that is supposed to switch between providing 12V when starting and  
6-8V when running is not making that transition correctly.  But what  
part is that?  Based on the wiring diagram in the FSM, it looks like  
power to the coil resistor goes through both the starter and horn  
relays as well as the ignition switch.  Which one of these makes the  
transition?

Thanks,
Jeff
'56 Sedan
Trenton, NJ


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