Allrighty. I want to hook up an isolator to my boat, like so:

I know. An ACR is better. I learned this after I bought the isolator. I don't care about the small voltage drop. I just run a radio when I'm stopped, and I only stop for a few hours, so I don't care about the efficiency you guys with massive cabin cruisers want.
Anyway. The isolator has an "E" post, a fourth post to accomodate "GM Delcotron CS series alternators that have an excite wire". You're supposed to buy some stupid wiring harness to hook up the isolator in that situation. Now, I don't have anything for that wiring harness to plug into, as I don't have a GM car with a GM wiring harness. I DO have a GM engine, and it has an alternator that has an "EXC" excite terminal, (although it's a DB Electrical generic replacement for a Mando OEM alternator, I think).
Does anyone know if I have to worry about any of this crap? Do I just wire it exactly as you see in the pic above, with the alternator + wire directly to isolator, leave all the other wires, (EXC purple wire and S reddish wire), where they are on the alternator?
The isolator.
Attached files [img]/media/kunena/attachments/vb/697483=29008-MBSS schematic w ACR alternator wiring.jpg[/img]

I know. An ACR is better. I learned this after I bought the isolator. I don't care about the small voltage drop. I just run a radio when I'm stopped, and I only stop for a few hours, so I don't care about the efficiency you guys with massive cabin cruisers want.
Anyway. The isolator has an "E" post, a fourth post to accomodate "GM Delcotron CS series alternators that have an excite wire". You're supposed to buy some stupid wiring harness to hook up the isolator in that situation. Now, I don't have anything for that wiring harness to plug into, as I don't have a GM car with a GM wiring harness. I DO have a GM engine, and it has an alternator that has an "EXC" excite terminal, (although it's a DB Electrical generic replacement for a Mando OEM alternator, I think).
Does anyone know if I have to worry about any of this crap? Do I just wire it exactly as you see in the pic above, with the alternator + wire directly to isolator, leave all the other wires, (EXC purple wire and S reddish wire), where they are on the alternator?
The isolator.
Attached files [img]/media/kunena/attachments/vb/697483=29008-MBSS schematic w ACR alternator wiring.jpg[/img]
Comment