[Vwdiesel] Electroyisis and heater core/radiator

[Val Christian]

Wow, that's a new one on me.  If I found a 0.3 volt differential
either way on my radiator or any other cooling system part, I'd expect 
leaks real soon.  

If you want, I can go digging on the chemistry.  On the other hand, I 
have enough brothers with piled high and deeper degrees, that I ought 
to just ask them.

Oh, to answer your question, if there is a voltage differential, you
can bet your front struts that some metal some place is disappearing.
Not good.  My uninformed opinion only.

Val

> 
> 
> I'm about to embark on changing out my heater core.  The instructions 
> state to check with a digital voltmeter with the ground lead to the 
> neg of the battery and the positive lead to the radiator core.  If 
> it's greater than .300 volts, the aluminum heater core will fail.  
> Well I measure mine and it's -.360 (it's negative).  I know there's a 
> couple of experts on the list.  To me, if the voltage is negative it 
> should be ok by the directions, but to me, there's got to be an 
> electrolysis issue going on if there's any reading, positive or 
> negative.  Is my logic faulty?  
> 
> Bud
> 85 VW Golf 1.6 NA
> http://www.rhinocat.com/cvaf4u
> 
> 
> 
> 
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