[T3] Polarization....

Jim Adney jadney at vwtype3.org
Fri Nov 7 23:16:22 PST 2014


On 8 Nov 2014 at 2:15, J. Jonik wrote:

> Muir "idiot" book says one "must" polarize if new (or "new"?) Voltage
> Regular or new (or "new"?) generator installed.   Don't know if this
> applies to putting in used parts or not. 

The only time repolarizarion MIGHT be necessary would be if the 
generator had been taken COMPLETELY apart, particularly the 
stationary field pole pieces, or if the engine has been run with the 
battery connected backwards. Otherwise, repolarizarion is NEVER 
necessary. A new or used VR has no effect on polarization at all.

I wish people would stop recommending this. In most cases, you're 
more likely to damage something than to improve something.

It's important to know that the polarization is refreshed every time 
you start your engine and the charging system works. Polarization 
just makes sure that the generator puts out + current rather than -. 
If the polarization is backwards, the generator will discharge the 
battery instead of charging it.

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