Low Voltage

[fastd]

follow up:
there was no dedicated ground wire directly on the alternator (was grounded through the bracket); adding the ground wire definitely helped improve the voltage but it still drops down to 12.2-12.7 for like 20% of the time at idle after it gets warm. The regulator and battery grounds seem good.

I have 4 wires going to the Alternator: White to Battery; Brown to FLD and Black to unlabelled, Black to Ground; no wire to the "STA" post.

On the regulator: Brown to the "F" post (continuity to Brown on ALT); Red to "S" and red jumper wire from "S" to "A"; "I" is unused. The was continuity from the ALT to the unlabelled wire also).

Wondering how the regulator is supposed to be wired; presumably 14.2 Vs or so comes from the Alternator to the Regulator via the Brown FLD wire and enters the regulator via the "F" post? then the regulated voltage exits the regulator via the "S" post?

Does that all sound right?

Seems like the wires for all but the "BAT" are kind of skinny, like 12 or 14 gauge...seems like they should be heavier, no?

Thanks again.