'66 Classic - defective regulator

That sort, yes - parts stores will have generic replacements that would work fine. (or can GET them, say a "Standard" brand replacement.)

Edited by billd - Nov/18/2010 at 9:56pm

billd   Would that be the same for my 66 American, 290 V/8?  Thanks

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STANDARD MOTOR PRODUCTS Part # VR112   

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That's not a 1966 alternator - OR it is and someone left off the isolation diode.

The 1966 regulator with a 1971+ alternator will combine to overcharge the battery by 1 volt.
The isolation diode drops charging voltage by roughly 1 volt.................. even with a new regulator, it will over-charge by a volt.
That's either a reman, or someone painted it......... no tag either.

OK, two possibilities on the alternator - it's a 1966 and someone removed the isolation diode, boosting the charging voltage by 1 volt, or it's a 1971 or later, I can't tell without looking inside the rear and seeing if it's got the diode trio inside.
The field or brush plate is the 1971 and later style - 1966 uses the ground wire over a stud, 1971 and later used the spade on the plate next to the field connection.
I guess at this point, since it COULD be the wrong alternator, or it could be the right one missing the isolation diode, I can't say a new regulator will totally fix it. 16 is too high, yes, and even the isolation diode would only drop it to 15, still a bit too high, but more in the ball-park.
It would take a close-up photo of the rear dead-on so I could see inside the back end, on the "left side" to see how the positive diode set is wired to know what year range the alternator really is.

This is what I hate about remanufactured parts - often they are a hodge-podge of parts they pull from baskets of clean parts to make an alternator that "will fit"- not necessarily work, but will fit.
OR, a previous owner got dumb with it...

This is the best picture I can get without removing it.