RE: Electrical charge / discharge erratic operation

[Tom Duross <tduross1@xxxxxxxxxxx>]

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Dave,

Would that apply for a mechanical unit also?
Just pull the ignition and hot-wire it off the battery?
I'm not sure what the drop to 7V meant though.

-----Original Message-----
From: Dave Casey [mailto:dcasey@xxxxxxxxxxxxx]
Sent: Tuesday, April 26, 2005 10:10 PM
To: 1962to1965mopars@xxxxxxxxxx
Subject: Re: Electrical charge / discharge eratic operation

Unplug your regulator, and with a voltmeter on your battery, give the green
wire that goes to the alternator 12V (with the engine running). If your
battery voltage goes to 17-18 then your alternator is fine.
Ballast resistor is unrelated.
Sounds like a regulator.

Dave Casey

----- Original Message -----
From: "Derrick Brown" <derrickb@xxxxxxx>
To: <1962to1965mopars@xxxxxxxxxx>
Sent: Tuesday, April 26, 2005 8:44 PM
Subject: Electrical charge / discharge eratic operation

> hi all,
>
> Ive got an electrical question.  New car, so im busy finding all the NEW
> quirks  : )
> 63 Plymouth.  440.  Electronic Ignition.  Old style voltage regulator.
> Ive driven it only a couple hundred miles and just today the charging
> system gauge started bouncing between discharge and charge at an irregular
> rate.
> I noticed this first during the day time then tonight as well.
> The guage appears more "stable" when out on the highway at a constant
> speed.
>
> I can see the lights both dim then brighten again in time with the gauge
> going from discharge to charge.
>
> No engine skip or miss nor power loss in the engine.
>
> So...............
>
> Voltage regulator?  ( anyone have a good test for this)
>
> Alternator?  (belt doesnt seem to be slipping)
>
> All connections appear fine.
>
> Ballast Resistor?
>
>
> BTW, i checked the voltage on the voltage reg, between the terminal on the
> adjustable side and ground.  13ish volts with lights on and looks to be
> about 7 ish volts with lights off.  is this normal?
>
> Any thoughts?
>
> thanks to all in advance.
>
> derrick
>

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