[Vwdiesel] Vw alt wired into JD, directional rotation

[James Hansen]

There's the rub. You have to FIND a quality rebuilder.  The way things have
been going, if my local experience is any indication, there will not be any
local rebuilders in a short while.  Used to be that rebuilders were CHEAP
compared to a factory reman unit, and less than half of new.  Now, not so
much... both local alternator and starter rebuilders have closed their doors
in the last year.  I know one guy quite well over the years, and he cites
high cost of parts, exceedingly high cost of freight on parts, and low
comparative cost of OEM reman units being offered.  For instance, my combine
alternator I changed 2 years ago (2002 combine), the factory reman unit was
a little over 50 bucks more than his parts cost, leaving him little margin
to compete.  I suspect things are similar across the country and in other
industries.
-james

-----Original Message-----
From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com] On
Behalf Of Erik Lane
Sent: December-13-12 12:07 AM
To: Travis .
Cc: vwdiesel at vwfans.com
Subject: Re: [Vwdiesel] Vw alt wired into JD, directional rotation

I would agree, though with one caveat - you've got to find a quality
rebuilder first.

As far as charging in only one direction - I don't think that it should
matter at all, unless the brushes/slip rings are really worn and only want
to work in the same direction that they've been going all their life. I
can't think of another reason. Internal to the alternator it is alternating
current and shouldn't care one bit which way it is going or coming, since
every split second it is reversing anyway.

I know electricity some - I'm a power engineer - but not for car alternators
specifically, so I guess I could be overlooking something, or be a bit
naive?

Erik

On Wed, Dec 12, 2012 at 7:44 AM, Travis . <tgott at hotmail.com> wrote:
>
> Where they VW alts or ones for other makes of cars?
>
> I say go with rebuilt-as they don't fail as often as the exchanged ones.
While you may be able to replace under warranty on the road-you won't need
to as often with a rebuilt one as often. I haven't had an alt failure yet. I
have this spare one only because I went to the "W" terminal one for the tach
and then upgraded to the AAZ motor which has a different setup so I had the
spare from the other motor-it was sold with the none "W" alt on it.
> Travis
>
>
>
>
> From: rgreeley2 at hotmail.com
> To: tgott at hotmail.com; vwdiesel at vwfans.com
> Subject: RE: Vw alt wired into JD, directional rotation
> Date: Wed, 12 Dec 2012 13:08:42 +0000
>
>
>
>
> travis, yes, i had two seperate occasions where the alt charged only in
one direction (in the on bench tester) and not the correct one so it created
a confounding situation when i put the alt in the car.
>
>
> as far as a replacement, i thought i should purchase one from a nation
wide resaler as i will at times be on the road traveling with this passat
wagon and then could replace the alt when and where it goes bad.
>
>
> ray
>
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