alternator swap

[amalventano1@comcast.net (Allyn)]

arg, just tested the 8v roccos alternator. 14.1 volts on startup. this seems a
bit high to me. i took a check on the rieger: 13.6 on startup. that seems more
realistic. is there some 8v alternator magic i dont know about? or is that 8v
number really too high? i suppose swapping over regulator assemblies would fix
that excessive voltage problem... hrm...
Al

----- Original Message -----
From: "Allyn" <amalventano1@comcast.net>
To: "scirocco list" <scirocco-l@scirocco.org>
Sent: Thursday, August 22, 2002 12:33 PM
Subject: alternator swap


> the alternator (bosch rebuild, from prev owner, unknown purchase date) on the
> wifes jetta is acting up. voltage goes to 12.8 on startup (actually charges
> battery enough to start w/o jumping), but easily gets loaded down. headlights
> and a/c are too much for it to handle, as voltage drops to the 10.5-11 range.
> i've tried swapping brush+regulator assemblies with no luck. my guess is some
of
> the output rectifier diodes are toast and it simply cant put out the rated
> current anymore.
>
> questions:
> 1. this thing still has a bosch rebuild sticker on it. do they offer any kind
of
> warranty at all?
> 2. what potential differences are there between the alternators on an 87 8v
> jetta (with a/c), and an 87 scirocco 8v (w/o a/c). they look the same on the
> outside, but will the scirocco alternator possibly have a lower current
rating,
> being non-a/c and all?
>
> thanks in advance for info,
> Al
>
> Allyn Malventano, ETC(SS), USN
> 87 Rieger GTO Scirocco 16v (daily driver, 180k, rocco #6)
> 86 Kamei Twin 16V Turbo Scirocco GTX ('it has begun', rocco #7)
> 86.5 Occo 16v Trailer (dotting 'i's across the country, rocco #8)
> 87 Jetta 8v Wolfsburg 2dr (daily driver, 260k, 0 rattles, original clutch,
> driveshafts, wheels :)
>
>
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