need HELP: alternator problem

[kbogach]

Robert,
I have not problems to start a car but voltmeter shows ~11 V and battery,
breaks and ABSoff lights stay on.
The noise I mentioned I hear when I disconnect blue wire connector and
provide current to the alternator exciter (from trusted source). I do it
cause I suspect that blue wire does not supply enough of juice to kick
electromagnetic field on . It isolates bad bulb/wire reasons.

Konstantin Bogach.

----- Original Message -----
From: Robert Myers <rmyers at oak.total-web.net>
To: kbogach <kbogach at home.com>
Sent: Sunday, February 18, 2001 12:43 AM
Subject: Re: need HELP: alternator problem


> Konstantin,
>
> I'm having a bit of trouble understanding what you write.  What I _think_
> you are saying is that when you attempt to start the car you hear the
> starter engage and then nothing much more happens.  Is that correct?  If
> so, it sounds to me like your battery is low.  The indicator lights you
> report are all typical of a low voltage condition.
>
> Try charging the battery or getting a jump start.  If the jump start works
> then your battery is down.  That could be a dead battery but it could also
> be a poorly functioning charging system.  If it's the latter then there
are
> several possible/likely causes.  Worn brushes in the alternator.  Missing
> alternator belt.  Voltage regulator not working.  Stator wire to the
> alternator loose/missing/broken.  Possibly some others.
>
> I hope that helps.  It's nearly 1 AM and I'm off to bed.  Good night and
> good luck.
>
>
> At 12:29 AM 2/18/01 -0500, you wrote:
>
> >I forgot to mention that I have the battery light, breaks light and ABS
> >off light are on when it happens.
> >It looks like I have a nice dialogue with myself :-)
> >>----- Original Message -----
> >>From: <mailto:kbogach at home.com>kbogach
> >>To: <mailto:quattro at audifans.com>quattro at audifans.com
> >>Sent: Sunday, February 18, 2001 12:17 AM
> >>Subject: Re: need HELP: alternator problem
> >>
> >>Ok, after some thinking and reading I can make more concise and concrete
> >>questions:
> >>  When I boot the alternator with some initial current (engine runs) it
> >> kicks on (it always happened before and this time I take the noise as a
> >> proof of it), but then magnetic field dies (noise disappear). Of
course,
> >> I should've measure voltage instead of assuming that the noise means
> >> kick on, but...  I think that noise may be result of  changing the
> >> load  on bearings due to force from created magnetic field on moving
> >> rotor/electromagnet.  What else can it be?  The only moving part -
rotor
> >> moved before and after the booting procedure. What could kill the EM
> >> field? If brushes are bad why it starts (consistently)  in first place?
> >>Why I am asking these questions instead of checking brushes first?
> >>Because I don't have a garage and it is 20 - 30 deg. outside.  I'd like
> >>to minimize my exposure to that hostile environment.
> >>
> >>Thanks.
> >>
> >>Konstantin Bogach.
> >>200tq '89
> >>200tqw '89
> >>
> >>
> >>----- Original Message -----
> >>>From: <mailto:kbogach at home.com>kbogach
> >>>To: <mailto:quattro at audifans.com>quattro at audifans.com
> >>>Sent: Saturday, February 17, 2001 8:20 PM
> >>>Subject: need HELP: alternator problem
> >>>
> >>>Hi all.
> >>>Today morning when I loaded my 200tq '89 with tools to go to fix and
> >>>pick up my "new" 200tqw '89 (it has no breaks, needs MC)  the
alternator
> >>>warning light did not refuse go off, no charging. I had such thing
> >>>before but ... a little of history: when it happened first time I
> >>>cleaned blue wire contact but it did not help. I found that exciter
> >>>current was less than spec. After I gave it a quick "push" from +12V
> >>>(through a bulb, using connection at FL headlight) it started charging.
> >>>I used this method each time it happened (not that often to address it
> >>>more seriously).  But I did not know the main reason.
> >>>Today this method did not help.  When I touched + with wire giving
> >>>"push" to the alternator it started to sound like it has bad bearings.
> >>>Sound disappeared in 3-4 seconds. It did it every time I touched the
> >>>terminal.  I am not good in electronics. I have not idea what it might
> >>>be.  I don't have a garage so method of trials and errors is a pain. I
> >>>will appreciate any idea which can help me to narrow my search.
> >>>
> >>>Thank you.
> >>>
> >>>Konstantin Bogach
> >>>200tq '89 (jealous one)
> >>>200tqw '89 (did not see its new home yet)
> >
> >---
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>
> Bob
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