Okay then, why does my amp meter show discharge when I start the car until
I kick it over 2000 RPMs and the shows positive for a few miles until the
battery is charged again? I'm running a 'two-wire' GM alternator with the
second wire running to the 12 volt hot wire to the radio. (1969 1600 ) Does
that second wire make the amp meter work? The old white wire hot lead is
terminated under the dash and the old voltage regulator has been completely
removed; harness and all.
Paul
OROC
-----Original Message-----
From: Patrick J. Horne <horne@cs.utexas.edu>
To: Adam Bradley <ambradley@yahoo.com>
Cc: datsun-roadsters@autox.team.net <datsun-roadsters@autox.team.net>
Date: Tuesday, July 03, 2001 8:09 PM
Subject: Re: Alternator wiring revisited
>Yes, this sounds right.
>
>One thing that you will find and think it is wrong is when you start
>the engine and look at the ammeter you will find that it is showing
>a discharge. This is correct. By wiring the alternator directly to
>the battery you bypassed the ammeter, so its readings will be worthless
>to determining if the alternator is putting out anything. Since you
>added a 30 Amp fuse between the alternator and the battery it would be
>possible to reroute that wire to go to the large white wire that you
>removed from the alternator, rather than directly to the battery. This
>would make the ammeter show sharge/discharge conditions correctly.
>
>Peace,
>Pat
>
>- Support Habitat for Humanity, A "hand up", not a "hand out" -
>
>Pat Horne, Network Manager, Shop Supervisor, Future planner
>CS Dept, University of Texas, Austin, Tx. 78712 USA
>voice (512)471-9730, fax (512)471-8885, horne@cs.utexas.edu
>
>On Tue, 3 Jul 2001, Adam Bradley wrote:
>
>> OK, I've installed the GM one wire alternator and wired it. (I was
>> surprised that it fits in the stock late alternator location and the
>> pulley lines up; the only mod. necessary was to enlarge the bottom ear
>> hole on the alternator).
>>
>> OK, now for the reason for this e-mail. I want to make sure I've wired
>> it correctly before I hook up the negative battery post. I connected a
>> 12 gauge wire with an inline 30 amp fuse from the "red" post on the
>> alternator directly to the battery + terminal. I connected the other
>> post on the back of the alternator to ground. I've seen messages
>> stating this is not necessary.
>>
>> Does this sound right? Am I going to blow up my car or melt my wiring?
>>
>> More importantly, can I completely disconnect my external voltage
>> regulator and leave the connector dangling? Do I have any other wiring
>> I need or should do?
>>
>>
>>
>> =====
>> Adam
>> '70 1600 SPL311-28181
>> http://www.picturetrail.com/abend
>> Get personalized email addresses from Yahoo! Mail
>> http://personal.mail.yahoo.com/
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