Re: Outboard question but not antique

[Don]

Well, those resistance readings seem normal for the charge coils. The cranking voltage seems correct also. Are you sure you didn’t interrupt/accidentally open the charge coil to pack circuit while checking running voltage? I know OMC never wanted us to do running tests without the packs connected. They had those crazy inline switch box things to do the running tests. I don’t have a book for the 86 models, but will look at my 1980 book to check on the running charge coil voltage, sure don’t think it was 400 volts though.
As for regulating the charge coil voltage, the only thing that would do that is the constant draw by the powerpacks. So, I would expect the voltage to climb high if you ran the engine on one bank with the other charge coil disconnected to monitor its voltage.
Not unlike what you would see if you pulled the positive battery cable of a running car and checked the voltage.
My nickel says you don’t have a charge coil problem, just a bad pack like you said.
I think I have a V6 pack at home, you are welcome to it if you want. Don