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Re: Ignition Warning Light on with new alternator

To: Steve Laifman <SLaifman@SoCal.rr.com>
Subject: Re: Ignition Warning Light on with new alternator
From: sosnaenergyconsulting <sosnaenergyconsulting@cox.net>
Date: Tue, 10 Sep 2002 17:49:21 -0700
Hi all:

My situation is a little different from Rick's and Steve's, so I could 
use some feedback also:
Mark 1 tiger with a generator.
We installed the internally regulated one-wire alternator today.
I left the old voltage regulator in place (didn't see any harm).
All the wires that formerly connected at the voltage regulator [with the 
exception of the brown wire with a green stripe--the 'field' 
wire(?)which we left unconnected] were connected together at one place.
Lessee, that'd be:
The brown wire to the starter solenoid switch;
The brown wire to the ignition/accessories switch;
The brown wire to something called the lighting switch;
The Big brown wire with yellow stripe from the Alternator;
The smaller brown wire with yellow stripe to the idiot light.
All sandwiched together.

The alternator works and is charging up the battery, however:

With the ignition off, the idiot light glows.
When the key is turned "on", or the engine is being turned over, the 
idiot light is off.
Smitty says that he couldn't see a way to wire it so that the idiot 
light is off when the key is off, and he said he couldn't see how to 
wire it so that the idiot light is on when the car is cranking (as was 
the case with the generator).
Smitty says the light being on when the ignition is off means I've got 
power to the switch and will drain the battery. He had me remove the 
light bulb from the idiot light as a way of interrupting this drain.

What I'd like is to have the idiot light glow when the engine is being 
cranked.
Also, since I don't currently have an ammeter, it'd be nice if the idiot 
  light glowed if the alternator cuts out.
It may just be that with the one-wire alternator, these functions 'ain't 
gonna happen', but I thought I'd ask:
Anybody got some wiring ideas that I can pass on to Smitty?

I did pass on Steve's earlier input.  Smitty says that the wiring is 
different from an Alpine to a Tiger--perhaps I explained it poorly to 
him, though.

Thanks in advance for any help.

Regards

David Sosna




Steve Laifman wrote:

> Rick,
> 
> Same thing happened in my Alpine in the Mojave desert , visiting 
> Edward's AFB. The Lucas alternator gave out and I picked up a Toyota 
> internal regulated alternator from a junk yard and mounted it. Light 
> would stay on until about 2000 rpm, or a throttle blip. Drove like that 
> for years. Gave the car to Jay, and he was restoring it and found there 
> is a feed wire to the battery connected wire that "energizes" the 
> alternator.
> 
> Once wired like it is supposed to be in the Toyota manual it never 
> happened again. :-)
> 
> Steve
> 
> flynnr2@btopenworld.com wrote:
> 
> 
>>After I replaced my alternator (w/built in regulator) with an identical unit, 
>the ignition warning light stays on at idle.  Its on at anything under about 
>1000RPM but goes off above that (driving about, etc.)
>>
>>This is a change in behavior from the previous alternator.  Should I be 
>worried?  Is this a problem?
>>
>>Comments, opinions, & suggestions welcome ...
>>
>>
>>
>>rick
>>B9471206 : http://www.tigersunited.com/gallery/RichardFlynn.asp
>>
>>
>>rick
>>B9471206 : http://www.tigersunited.com/gallery/RichardFlynn.asp

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