[Vwdiesel] regarding your alternator problem

[paul lew]

I had the same problem,and I opened the section of the alternator circuit where the brushes are wired to, and cleaned the oxidized connections (use a fiberbrush or emery paper to clean and tighten the connections, brushes should be checked for length, and or if they are sticky (unable to move up and down freely).
  P.S.
  In regards to a previous posting, Diodes can also be what is called leaky(having some resistance internally just partially doing the job, (I'm a electronics tech)).
  Paul

  

Message: 2
Date: Sun, 10 Dec 2006 12:52:26 -0500
From: Rolf Pechukas 
Subject: Re: [Vwdiesel] blinking alternator light ??
To: vwdiesel at vwfans.com, ev_update at yahoogroups.com
Message-ID: <727D5A6F-2A97-4AA6-A54A-A7095360F14D at 4u2bu.org>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed

OK, so I did some voltmeter testing at the alt

- 11.54v at both the battery and at the hot lead from the alt WHEN 
THE VEHICLE IS RUNNING

- @4v at the blue lead from the alt just below the big red hot lead

- @0.6v at the slide-on connector

I'm guessing that the 11.54v is from the battery, not the alt
alt may be doing nothing

I should be seeing 13-14v with the car running at the hot from the 
alt, correct?
and maybe 12.5v at the batt (what I usually see)

so I'm guessing connections are OK, or at least the problem, since I 
am not getting good charging voltage at the alt
even if the connections were bad I should still see at least 13v at 
the alt, right?

so
next: will go buy AC charger for temporary charging of my battery
then: will pull brushes and look at them

thanks for the responses
-- 

Rolf in MA

 
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