Bingo!
Blown fuse (and slightly melted fuse holder) I am very happy when it is the
simple things.
I didn't think of the fuse at all as I reallly had no idea what the result
of that fuse being blown would be. I thought that since the alt output wire
was directly attached to the ammeter, it woud be pegged at zero if the fuse
ever blew. (What am I missing here?)
I will put the battery on the charger for a day or so and try again. Thanks
to all those who offered help, this list really is great.
It is starting to look like I will finally be able to make the novice autox
class that is offered once a year by the local clubs.
Erik
----- Original Message -----
From: "Patrick J. Horne" <horne@cs.utexas.edu>
To: "Amy & Erik" <erikandamy@integraonline.com>
Cc: <datsun-roadsters@autox.team.net>
Sent: Wednesday, April 02, 2003 7:22 AM
Subject: Re: Ammeter /alt question
Erik,
Since you stated that the car had been sitting for quite a while, and that
the alternator had been swapped (for what, or is it just from the hot
engine side to the cool?), I suspect that the battery needed charging.
When the engine started the alternator put out enough current to blow the
30A fuse. If the fuse is bad, the voltage regulator not hooked up
correctly, or the alternator defective you will get the stated
indications.
When the alternator is charging the battery the ammeter will move to the +
side of the dial. - is discharge.
If the fuse is good and the wires to the regulator are correct, try
measuring the voltage at the back of the alternator where the large
(white) wire is connected. There should be about 12~14 volts on it. (This
is with the engine off). If there is voltage, the problem is with the
regulator or alternator, or the wires that interconnect them.
I will have to do some more digging to come up with other tests, so see if
this helps.
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, 1 University Station C0500,Austin, Tx. 78712-1188 USA
voice (512)471-9730, fax (512)471-8885, horne@cs.utexas.edu
On Tue, 1 Apr 2003, Amy & Erik wrote:
> IT lives!
> Runs and everything. First time in over a year. Keep in mind that it was
> only very minor projects that kept me from driving it, not a complete
resto
> or anything fun like that.
>
> On my first drive, I found the ammeter dipping midway into the negative,
> turn on the lights and it goes far to the negative. Correct me if I am
> wrong, but I thought that if you had a low battery and load that the
ammeter
> should go higher.
>
> Background: 1969 2L 1600
> I did the alternator swap, and installed a Gary Boone special along with a
> bunch of non-electrical stuff.
> I replaced the wire leading from the alt to the splice by the firewall
that
> leads to the gauge, and added a 30A fuse. Added a new ground wire from
the
> alt, and extended the wires leading to the regulator. I don't know what
of
> this would be the culplrit. Nothing else was changed (other than the EI
> conversion- which works very nice by the way)
> My alt has 4 wires coming out of it to the harness. In its previous
> location, only three were hooked to anything and it worked fine.
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