<VV> Charging problem

[jim bannister]

I suspect that the voltage is being measured somewhere in the front of the car.  I'm curious to learn the voltage at the battery or the output terminal of the alternator.  The stock wiring is marginal at best and it's easy to have a serious voltage drop between the alternator and the dash.  When I redid my dash with all VDO gauges, I ran two 10Ga. wires in parallel from back to front.  Now when my two 100 watt hi-beams come on, the voltage doesn't even flicker.
Jim '66 turbovert

-----Original Message-----
From: VirtualVairs [mailto:virtualvairs-bounces at corvair.org] On Behalf Of FrankDuVal via VirtualVairs
Sent: Monday, January 14, 2019 5:57 PM
To: virtualvairs at corvair.org
Subject: Re: <VV> Charging problem

Stock AC Delco alternator with firewall mounted voltage regulator?

Needs +12 or so from dash to power up voltage regulator on the "dash 
light" wire, #4 terminal. If there is +12ish on terminal #4, then look 
at wiring between regulator and alternator..

Club member had a 66 where someone (something) chewed through the 
harness over the rear axle and the wire from front to terminal #4 had an 
intermittent. Repairing the harness fixed the problem.

Frank DuVal


On 1/14/2019 5:10 PM, Michael Kovacs via VirtualVairs wrote:
> 1969
>   Over the course of a week or so the car's add on voltage meter was either 12.2 (no charge) or 14+  (I used a voltage gauge and digital VOM to verify. I brought the alternator to NAPA and it was putting out 14.9 Volts. I had a few spare alternators home I picked one,replaced the brushes and replaced the front and rear bearings while it was apart. NAPA checked it after I assembled it and and also showed 14.9 volts.
> I installed it and a  new NAPA voltage regulator. The old one was an original Delco. Still no charging. The voltage input to the starter is over 11 with a fully charged battery.
>   Car starts immediately and everything else works. I have never encountered this problem. Usually either the alternator, voltage regulator or bad wire is the problem.
>
>   What could be wrong? What else is in the system to prevent the alternator from charging?
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