[T3] Charging issue still

[Jim Adney]

On 14 Jan 2011 at 9:14, Tim Keohane wrote:

> I rechecked the generator mounting, and found the alignment less than  
> the width of the dimple on the  strap off. ( 1mm ) I'll correct that,  
> however it seems too small to create a heating issue.

That's plenty close. There's about 1/4" of leeway either direction.

> Yes Jim I have  your charging fact sheet and will recheck everything
> again. 

The main thing to check is whether the generator can put out more 
than 14 V when you do the "full fielding" test. That's the test where 
you ground the DF terminal with the wire disconnected and then speed 
up the engine. It tests just the generator. If the generator tests 
okay, then the problem must be in the voltage regulator or the 
wiring. It's usually in the VR.

> The generator is a re- manufactured bosch # 311 903 031. I see on the
> commutator (?), where  the brushes ride, a ledge indicating wear. The
> groves are still very  visible and are deeper than the ledge is tall
> by many factors. The  brushes are protruding above the holder brackets
> and the spring (s)  seems plenty strong. 

That all sounds fine.

> The voltage regulator is not bosch and I have some reservations  
> regarding that component. I'm not sure I can envision a situation  
> where the V R would drop as the temp. went up.

There is temp sensitivity built into the VRs, but not that much. I've 
seen a LOT of bad aftermarket (black body) VRs in VWs over the years.

-- 
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Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
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