120 Amp Audi Alternator Install

[pellom@YorkU.CA (Sal Guzzo)]

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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