Alternator charging light

[Mark IV]

Do you have a "one wire" alternator? Calling Blas, the Bat Signal is lit.

[Boise]

Originally Posted by Mark IV

Do you have a "one wire" alternator? Calling Blas, the Bat Signal is lit.

I believe I do. There is only one wire going to the battery. The car does appear to have a voltage regulator on the left fender well.

[patrickt]

Snap a pic of the cover plate on the alternator that tells the name, model, etc., like Power Master, and post it. Your car might have started out as a regular alternator with an external voltage regulator that was excited by the charging light, and then along the way someone put in a one-wire alternator.

[spdbrake]

https://www.ronfrancis.com/prodinfo.asp?number=LS%2D11

https://www.summitracing.com/parts/rfw-ls11

This should do it.

[patrickt]

One wires used to be a PITA, but they're pretty nice now. When I was a kid they wouldn't work worth a crap at low RPMs, and you always had to rev them a couple of times to get them going. I don't think that holds true anymore, but I still have a 60 amp AC Delco with an external VR.