Chris Cutty

I was wondering if you could use both an internal regulated alternator with the existing external voltage regulator? There is an adaptor connector that plugs into the 10dn then the other end plugsi nto the 10si terminal on the alternator. Would a hook up like this causes problems?

oldcutlass

Why would you? It would be a bit redundant.

Tedd Thompson

Just about twice the chance for something to wrong. I'm not sure it would even work.... Tedd

joe_padavano

It won't work. Don't do it. The external regulator needs connections to the alternator that are different from those on an internal regulator unit. The purpose of the adapter cable is to allow you to plug in an internal regulator alternator without butchering your original harness. To do so, you need to jumper the terminals in the external regulator connector. If you want the optics of an external regulator on the firewall, you can simply jumper the terminals inside an old regulator and plug it back into the harness when using an internal reg alternator.

Chris Cutty

Thanks so much for the wisdom guys. That's a great idea to jump the wires inside the old regulator . I'll have to see about getting a nice AC Delco cover

Tom442

https://oldsjunction.classicoldsmobi...r%20Conversion

777stickman

https://www.lectriclimited.com/


https://www.lectriclimited.com/conve...-harness-85000



Check these sites. I put the SI Alt and this conversion kit in my '65 442 4 years ago with out issue.

Chris Cutty

just did the conversion today and it solved my red gen light issue as well thank you

777stickman

Glad it worked out for you..............777

Chris Cutty

Ugh so I had a senior moment and left my headlights on. Battery is dead put in a new one. Now the GEN light is back on. Why would this be if I have new battery, new alternator with internal regulated conversion kit?

777stickman

Check Alt output at the batt with a digital volt meter. Should be around 13.8v-14.2v at 1000 rpm.

dc2x4drvr

WAG, there is voltage feed back, check your wiring, might need an inline diode on the GEN light wire.