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Re: [6pack] Alternator--'75 Tr-6

To: "wcwellbaum@cox.net" <wcwellbaum@cox.net>
Subject: Re: [6pack] Alternator--'75 Tr-6
From: robert fabie <bobfabie@gmail.com>
Date: Mon, 12 Aug 2013 07:39:51 -0400
Cc: "6pack@autox.team.net" <6pack@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: 6pack@autox.team.net
References: <37b163.15888.14070878e76.Webtop.0@cox.net>
>From your description it sounds like the system is operating normally.
After starting, your car runs off the alternator. While doing so, it also
provides a trickle charge to the battery. Disconnecting the battery on an
alternator equipped car is not recommended. You could do this with cars
equipped with generators but not so with alternators. I don't think you
have a problem.
Bob Fabie.

On Sunday, August 11, 2013, wrote:

> An electronic diagnostic check of my charging system showed an very weak
> battery and a bad diode in the alternator.  The 11 year old battery was
> replaced two weeks ago and sat on a battery tender until yesterday. A
>  rebuilt alternator was installed yesterday--by me. Unplug the old and
> plug in the new. The car fired immediately with a fresh battery and the
> voltmeter showed the system charging at 13 volts. However, my multimeter
> showed the battery at 12 .6 volts regardless of engine speed.  I loaded up
> the system with headlights and fan and could not see any difference in the
> rate of charge.  12.6 volts flat--regardless of engine speed. Drove it a
> few miles and checked the battery again and it was showing 12.3 volts.
>  While running I pulled off the positive lead from the battery and the
> engine died immediately.  So the engine was running off the battery--not
> the alternator.  Of course, I suspect a duff alternator.  Freshly rebuilt
> and sold by one of the 'big 3.'  I disconnected the plug from the
> alternator and with the engine running tried to get a reading  to see if
> the alternator was putting out anything--but all I got was a rapidly
> changing reading on my meter--really rapid--some sort of jibberish.  So,
> short of taking the alternator to a speialty shop to have it tested what
> can I do to determine is there is output from my 2 day old unit?  If
> yes--than I must have a problem somewhere between the wiring plug to the
> alternator and the battery--yes?
>
> Bill Wellbaum
> Las Vegas
>
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