[DeTomaso] Fluttering Amp Gage

[Marshall Smith]

My ammeter needle jumped for 15 years until I added a shunt across the connectors behind the amp gauge. Now it's still and calm and probably easier on the gauge. Talk to Jack about the proper material to use for the shunt.


Sent from my Verizon Wireless 4G LTE smartphone

<div>-------- Original message --------</div><div>From: SOBill via DeTomaso <detomaso at poca.com> </div><div>Date:03/29/2015  2:42 PM  (GMT-08:00) </div><div>To: mbefthomas at comcast.net, detomaso at poca.com </div><div>Subject: Re: [DeTomaso] Fluttering Amp Gage </div><div>
</div>A fluttering Pantera ammeter is quite common.

The Veglia ammeter has no damping for the needle movement. The Ford voltage 
regulator charges the battery with pulses of current. The pulses of 
charging  current cause the undamped ammeter needle to get quite vigorous.

See http://www.panteraplace.com/page178.htm for  a description of the guts 
of the ammeter.

I know of no real solution to this problem with a stock ammeter and  
regulator. As the ammeter ages the pivot for the needle becomes worn and the  
needle will sure jump about.

The main  thing is to keep the main thing the main thing.
Do the best you can with what  your have where you are.
Have fun today!
SOBill  


In a message dated 3/29/2015 1:56:31 P.M. Pacific Daylight Time,  
mbefthomas at comcast.net writes:

Trying  to debug a hot start issue, and on the last start, my amp gage
started  fluttering.  Never seen that one before and am wondering if I have
an  alternator that's going bad.  Other possibilities?

Thanks
Mike  Thomas
Pres., Panteras Northwest
Yellow '74  #6328




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-------------- next part --------------
   My ammeter needle jumped for 15 years until I added a shunt across the
   connectors behind the amp gauge. Now it's still and calm and probably
   easier on the gauge. Talk to Jack about the proper material to use for
   the shunt.

   Sent from my Verizon Wireless 4G LTE smartphone

   -------- Original message --------

   From: SOBill via DeTomaso

   Date:03/29/2015 2:42 PM (GMT-08:00)

   To: mbefthomas at comcast.net, detomaso at poca.com

   Subject: Re: [DeTomaso] Fluttering Amp Gage

   A fluttering Pantera ammeter is quite common.
   The Veglia ammeter has no damping for the needle movement. The Ford
   voltage
   regulator charges the battery with pulses of current. The pulses of
   charging  current cause the undamped ammeter needle to get quite
   vigorous.
   See http://www.panteraplace.com/page178.htm for  a description of the
   guts
   of the ammeter.
   I know of no real solution to this problem with a stock ammeter and
   regulator. As the ammeter ages the pivot for the needle becomes worn
   and the
   needle will sure jump about.
   The main  thing is to keep the main thing the main thing.
   Do the best you can with what  your have where you are.
   Have fun today!
   SOBill
   In a message dated 3/29/2015 1:56:31 P.M. Pacific Daylight Time,
   mbefthomas at comcast.net writes:
   Trying  to debug a hot start issue, and on the last start, my amp gage
   started  fluttering.  Never seen that one before and am wondering if I
   have
   an  alternator that's going bad.  Other possibilities?
   Thanks
   Mike  Thomas
   Pres., Panteras Northwest
   Yellow '74  #6328
   _______________________________________________
   Detomaso  Forum Managed by POCA
   Posted emails must not exceed 1.5  Megabytes
   DeTomaso mailing  list
   DeTomaso at poca.com
   http://poca.com/mailman/listinfo/detomaso_poca.com
   To  manage your subscription (change email address, unsubscribe, etc.)
   use
   the  links above.