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Hei and the old ICM

Started by 85AmCfreak, July 17, 2012, 02:46:36 PM

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85AmCfreak

July 17, 2012, 02:46:36 PM
So I was under the hood the other day and was thinking. I have a GM hei setup in the 83, why do I still have the old motercraft ICM? It was done by the P/o so the wiring is pretty choppy. Can I just unplug and unbolt it? It is very cluttered down there and I would like to tidy up the wiring.
I Don't know why. But everybody's always talking about their STI or That guys EVO, I think I'll stick with my old, but reliable AmC. Did I ever tell you I was Full blooded Eagle?

eaglefreek

#1
July 17, 2012, 03:09:15 PM
Do you have a Motorcraft carb also? I have an MSD ignition and removed all the wiring to the ICM and stepper carb a couple days ago. Except for the one relay on the right fender well, everything unplugged. I had to cut the wires coming out of that relay.
1986 AMC Eagle Wagon 4.2L/4.0L head, AW4,NP242, Chrysler 8.25" rear.
1981 AMC Eagle Wagon As Seen On TV  Lost In Transmission




"I know he'd be a poorer man, if he never saw an eagle fly,
Rocky mountain high"  John Denver
Click for Fayetteville,TN Forecast" border="0" height="100" width="150

GRONK

#2
July 17, 2012, 03:24:49 PM
The HEI should be wired right from the starter solenoid so no need for the ICM.  Make sure you wire in a 12V ceramic resistor for protection.
"Bucket" 1983 Limited Wagon
"Tootie" 1984 Wagon
Owner - GRONK Performance

85AmCfreak

#3
July 18, 2012, 05:52:11 AM


Quote from: GRONK on July 17, 2012, 03:24:49 PM

Make sure you wire in a 12V ceramic resistor for protection.


I am running a weber no feed back on this one. Whats the resistor for?
I Don't know why. But everybody's always talking about their STI or That guys EVO, I think I'll stick with my old, but reliable AmC. Did I ever tell you I was Full blooded Eagle?

GRONK

#4
July 18, 2012, 10:31:04 AM
Protects from voltage spikes to the HEI.  HEI's burn up from unregulated power.  Require a full 12V but don't line anything more than that.
"Bucket" 1983 Limited Wagon
"Tootie" 1984 Wagon
Owner - GRONK Performance

85AmCfreak

#5
July 21, 2012, 12:52:33 AM
oh..;D..oops
I Don't know why. But everybody's always talking about their STI or That guys EVO, I think I'll stick with my old, but reliable AmC. Did I ever tell you I was Full blooded Eagle?
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