1984 470 Slave solenoid and ignition coil

jeffkrol

Seaman Apprentice
Joined
Jul 11, 2003
Messages
33
Can't find a troubleshooting diagram for the "slave solenoid" on this engine.
Couple of questions. What's it's function?
Reason I need to know:
I have a full 12v at the ignition coil (voltmeter from here to bat +) as soon as I attach the battery cables. Key in run or not. I assume this is irregular. with key in run it's still 12v. According to what I read it shouldn't be.
My only conclusion is the slave solenoid should cut out the second + wire to the coil. When energized to run the starter solenoid it should close this and send the full 12v to the coil.
This all should be very simple but somethings not adding up...
 
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