Re: IML: Coil

["Steve B." <Imperial59@xxxxxxxxxxxxxxx>]

Chris Strohmeyer wrote:
> Thx Steve, Then why the 10v at idle and 12v at higher rpm on the plus 
> side of the coil?  This was done with jumpers to eliminate the wiring 
> harness.
> Would you be concerned about thes voltages? 
Well one reason would be that you have a higher voltage coming from the 
alternator at 2500rpm than you have at idle in most situations.  Also 
the resistor heating due to load changes the voltage as others have 
explained (much better than this simple FL boy can do).  I just went and 
tried your test on my '68 lesser Chrysler product and came back with the 
same numbers you are getting.  That car has run perfectly for the last 
three years so, no, I would not be concerned about the voltages you are 
seeing.  Change the points and condenser if you haven't already just for 
good measure.  You can also attach a timing light or tach and watch for 
a good steady spark when it starts acting up if you have one available.

If spark looks good then go back and start looking at the fuel system 
again. 

            Steve B.


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