Re: [FWDLK] Generator or voltage regulator

[Bob Moore <GTA351C@xxxxxxxxxxxxx>]

Hi Nick,

Watch the voltage over time, and see if it is gradually climbing- if you
just started it with a low or maybe even a normal battery this could be ok,
but eventually it should head up to ~13.8.  

I used to play games- first see what happens when you change the load, like
turn on the headlights and the blower and see how it changes.  Then you
could try disconnecting the battery while it is running (disconnect your car
stereo or other solid state devices before trying this one!) and see what
happens to the voltage, the other fun thing is to try closing the relays
with your finger tip with the fan belt off, you should be able to get the
generator to 'motor.'  

If the brushes are worn out, the current & voltage output will drop off to
near 0 when you accelerate.  Current/amps in my mind is the ability to drive
a load, voltage is just the open circuit potential, you can still have
voltage with no load but it might go away when  you apply current (load).
Watts is Volts * Amps, or ability to deliver a heat/work load etc.

Have fun!

-Bob 

-----Original Message-----
From: Forward Look Mopar Discussion List
[mailto:L-FORWARDLOOK@xxxxxxxxxxxxx] On Behalf Of Nick Sperduto
Sent: Tuesday, September 08, 2009 4:10 PM
To: L-FORWARDLOOK@xxxxxxxxxxxxx
Subject: [FWDLK] Generator or voltage regulator

I can't find my shop manual it's misplaced somewhere in my mess of a garage.
My 56 plym is only charging about 12.8 volts at high rpm.
Is there an easy way to tell if it's the generator or the voltage regulator.

Thanks,
Nick 

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