[Vwdiesel] Alternator question

Rolf Pechukas rbp at 4u2bu.org
Tue Jan 30 19:45:17 EST 2007

> I noticed the lights flickering on my Jetta ('91 NA) last night,  
> and tested
> the voltage at 13+ volts DC charging, and almost 30 volts AC.
> My first guess would be that I lost a diode in the bridge  
> rectifier, which
> is probably inside the alternator, and not part of the voltage  
> regulator..
> Haven't yanked it apart yet.
> Does this sound right?
> Any BTDTs?
> Best regards,
> Mark

I have the same thing on my 93 EuroVan DSL
first time it happened I fixed it by removing voltage regulator and  
cleaning brushes
this worked for a couple weeks
started happening again, cleaned brushes, didn't work

if you figure it out, let me know

Rolf in MA

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