120 Amp Audi Alternator Install

[ranahan@charter.net (John Erickson)]

No pics.  I got it from a 1993 Audi 90 Quattro (V6).  From what I 
understand, almost any 120 alternator from a newer VW/Audi will fit.  The 
only real differences are where the duct fitting is on the back of the 
alternator.

BTW, I forgot to mention that I had to find a new location for the ground 
wire going to the AC compressor.  The Audi alternator doesn't have a 
convenient place to connect it.  I ran a longer wire to the valve cover.

John
(maybe Santa will bring me a digital camera)

At 09:57 PM 7/8/2002 -0400, Sal Guzzo wrote:
>John,
>
>Do you have any pics of the Audi Alt?  Which car does this alt come from?
>
>Thanks
>
>Sal
>
>----- Original Message -----
>From: "John Erickson" <ranahan@charter.net>
>To: <scirocco-l@scirocco.org>
>Sent: Monday, July 08, 2002 6:08 PM
>Subject: 120 Amp Audi Alternator Install
>
>
> > I installed an Audi 120 amp alternator on my 16v over the weekend and
> > thought I'd pass on what little tech info I gleaned from the experience.
> >
> > First of all, you may ask, "Why?"  You don't -need- a 120 amp
> > alternator.  Well, 'cause it was cheap ($50) and it only had 200 miles or
> > so on it.   That's the cheapest replacement I found anywhere.  Besides, it
> > -looks- cool.
> >
> > The installation is basically "plug-and-play" with a couple notes:
> >
> > - The mounting bracket on my engine had too much material outboard of the
> > rear mounting bolt hole.  It hit the case on the alternator prohibiting
> > proper bolt alignment.  A couple minutes with a Dremel fixed that problem.
> >
> > - The adjustment bolt on the Audi unit has a larger diameter than the one
> > on the stock alternator.  I widened the slot in the adjustment bracket to
> > compensate.  I have read that others just put a long bolt all the through
> > the bracket and bolt hole and put a nut on it (No thanks.  That means you
> > need two hands to tighten the bolt.  One hand is usually busy holding
> > tension on the belt.).
> >
> > - The back of the Audi alternator is black plastic and has a fitting for a
> > two inch ventilation duct.  The fitting will hit the radiator if left in
> > place.  The Dremel took care of that problem as well.
> >
> > - You need to swap pulleys, but do that on the car.  Its nice to have the
> > alternator held in place while you are wrenching on it.  Besides, the belt
> > is easier to deal with if you just pull off the pulley.  The stock
> > alternator pulley is keyed, but the Audi alternator is not.  I stuck a
>long
> > rod into the alternator to keep the armature on the Audi unit from
>turning.
> >
> > The old pulley on the Audi alternator lines up perfectly with the pulley
> > that drives it (AC compressor).  I was quite pleased to get a nice 14v out
> > of the alternator when I fired it up.  All-in-all, I probably spent two
> > hours on the swap.
> >
> >
> >
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>
>
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