Battery charging (blue wire again)

[flaatr at yahoo.com (Euroroc II)]

True... I discovered this 3500 RPM+ secret myself by accident on my 8V.

My issue is that the 16V once complete will be a weekend only car. No more 
trips to the market or to return video tapes, that's what the Jetta is 
for  ;-). I am installing an auto start circuit that will monitor battery 
voltage and start the car for a short period of time whenever the voltage 
drops below a pre-programmed level (this works with the alarm so the doors 
will still be locked and the shock & motion sensors temporarily disabled 
while the proximity sensor stays on, if some one tries to enter the car the 
motor will cut off and the alarm will sound). Here in the problem lays. 
Since starting the car via the key can not insure that the alternator will 
fire up I may be doing more damage than good. So why does the Jetta work 
differently? The blue wire on the Scirocco is intact and not damaged.

Does anyone know if the newer style alternators use the separate exciter 
line? If it doesn't then my problem will be solved since I am installing a 
new 120Amp Audi alternator.

-Raffi

At 11:22 PM 7/7/2003 -0400, you wrote:
>Actually one of my newly learned "tricks" from the old German guy I work
>with is that the alt will work without the blue wire hooked up if you crack
>the throttle up above 3600 rpms.... I didn't believe it myself until he did
>it to my 88 16V and my 78 8V..  As far as your jetta.... got me?
>Chris
>'88 16v Rocco
>'78 8v Rocco
>'80 Caddy
>'92 SLC
>'02 337 1.8T
>'00 GTI VR6
>'97 Golf GL
>----- Original Message -----
>From: "Euroroc II" <flaatr@yahoo.com>
>To: <Scirocco-l@scirocco.org>
>Sent: Monday, July 07, 2003 9:51 PM
>Subject: Battery charging (blue wire again)
>
>
> > So here is an interesting question...
> >
> > I understand that the blue wire runs from battery (+), through instrument
> > panel/warning light, and on to the alt.  It brings +12v to the alt.  The
> > current from this wire is used to get the alt going, called "exciting" the
> > circuit.  Without an initial current like this the alt will never get
> > going.  It's a good bit like priming a pump (plagiarized from a previous
>post).
> >
> > So why does my A2 Jetta start up and charge without the need to rev the
> > motor up to get the excitation voltage my Scirocco requires. I don't have
> > the Bentley for the Jetta yet to see if there are any differences but it
> > looks like the same alternator and basically the same instrument cluster
> >
> > -Raffi
> > .
> >
> >
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> >
>
>
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