RE: [Chrysler300] Voltage regulating
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RE: [Chrysler300] Voltage regulating





Ron,

 

It can't be the voltage limiter, it's not in the circuit for the ammeter.  The limiter is built into the oil gauge and feeds 5 volts to itself and the temp and fuel gauge, but not the ammeter.

 

Bob

 

From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of 'Ron Waters' ronbo97@xxxxxxxxxxx [Chrysler300]
Sent: Thursday, June 11, 2015 9:54 AM
To: chrysler300@xxxxxxxxxxxxxxx
Subject: Re: [Chrysler300] Voltage regulating

 

 



Bob -

 

Take a look at the schematic. Is there a 'voltage limiter' indicated ? Some Mopars, 59 thru early 60s used a 5V gauge with a voltage limiter mounted nearby to bring the volts down from 12V. If you have one, it could be failing.

 

Ron

----- Original Message -----

Sent: Thursday, June 11, 2015 11:54 AM

Subject: RE: [Chrysler300] Voltage regulating

 

I have a stock alternator in my G, rebuilt to stock specs and verified as working properly by the rebuild shop. I currently run a modern solid state voltage regulator.  Going up to Reno last week, my ammeter was bouncing wide swings left to right rapidly for no apparent reason.  I have tried at least 3 mechanical  and 3 solid state regulators to eliminate the problem, yet is still returns.  Doesn't happen all the time, and the battery is getting charged, but the ridiculous gauge action drives me crazy.  Does anyone know the actual cause if the problem?  If it is a thin vs. thick stator, how does the stator thickness fix the problem? Is it possible to put a thicker stator in place of the thinner one?  I'm very good with electrical issues but this is one I haven't been able fix in all these years of ownership.  I think it may be a first year design problem but still don't quite know what causes it.  Could it be that dampers in the later ammeters mask the issue?   If it was only that, the headlights would still flicker, so what is really going on here?

 

Bob J

 

 

From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of paul paulholm@xxxxxxxxxxxxx [Chrysler300]
Sent: Wednesday, June 10, 2015 3:42 PM
To: John Grady; 'Larry Jett'; chrysler300@xxxxxxxxxxxxxxx
Subject: Re: [Chrysler300] Voltage regulating

 

 

On 6/10/2015 06:36 PM, 'John Grady' jkg@xxxxxxxxxxxxxxxxx [Chrysler300]
wrote:

> Hi Larry..went around with this a few times…there are replacement ones
> with a red wire hanging out, electronic “replacement” from China I
> think. But private labeled many ways. They are pure junk. They fail on,
> just as you say. Boils the battery. After much pain on this, I found
> that Standard Motor Parts has, or better had, a higher line, like the
> old Blue streak parts, that looks like the mechanical one, black metal
> box with two metal terminals, electronic , that work hassle free. No
> flicker. SMP makes or resells the cheap one, too. Good one is 2x the
> bucks. But still cheap.

> I had so much trouble with the one with wire hanging out, changed 3-4 x,
> that I found an old mechanical one from a junkyard that worked fine for
> a few years before finding the one I describe. The mechanical ones cause
> the needle dance and flicker..but so what..it works. I wish I had more
> specifics for you on the good one .

> FYI, The older one wire alternator has one terminal of field factory
> grounded, you can use a two wire two brush alternator in an older MOPAR
> by grounding one of the two wire alternator terminals.--the one wire
> from regulator in old design puts + 12V regulated for charge rate on the
> alternator , the +12 is derived from the ignition terminal on the
> box—one wire MOPAR alternator used at least to 67, maybe later; (not
> like one wire term, as used today) . which terminal is which is
> critical..you blow them up if reversed. The original terminals had
> different ends to prevent that, but they often break off, resulting in
> wires under screws .

> Good luck..! John

> *From:*Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx]
> *On Behalf Of *Larry Jett LarryWJett@xxxxxxxxx [Chrysler300]
> *Sent:* Wednesday, June 10, 2015 4:46 PM
> *To:* chrysler300@xxxxxxxxxxxxxxx
> *Subject:* [Chrysler300] Voltage regulating

> Back from Sparks NV and the Inc's spring meet. The alternator is
> showing a constant charge after miles of highway driving. NAPA only has
> the mechanical regular for the 1963 300 Touring 8 (my new name for
> Sport) and the existing VR is an electronic type I learned about from
> Hertog. Anybody know a part number for those small aluminum types that
> don't make the headlights flicker at night?

> Larry W Jett

I might add, IF you are seeking reliable performance and not fretting
nit-pickers, if you have the 'thin' stator alternator, the 'thick'
stator unit also stops or seriously deminishes the flickering dance the
amp meter is doing, even at idle.

--
Paul Holmgren
The history of liberty is a history of resistance.
The history of liberty is a history of limitations
of governmental power, not the increase of it.
- Woodrow Wilson, New York, September 9, 1912



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Posted by: "Bob Jasinski" <rpjasin@xxxxxxxxxxx>


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