Re: [DML] Stainless in coolant system

[mike clemens <rmclemns@xxxxxxxxx>]

Maybe I missed out on some earlier conversation, but unless you tie the positive side of the battery to some point that is ground, then, you cannot "short out the battery".  Ground is ground!  There will be a very minute flow of electrons with stainless steel and aluminum, but not enough to deplete the battery.  If you want to see what would happen, just run both the engine ground and the bottle ground to the negative side of the battery and let it set for 24 hours.  Nothing and next to nothing happens.  Did I miss something in an earlier post?
 
Mike   TPS   1630

--- On Mon, 7/28/08, Marc Levy <malevy_nj@xxxxxxxxx> wrote:

From: Marc Levy <malevy_nj@xxxxxxxxx>
Subject: Re: [DML] Stainless in coolant system
To: dmcnews@xxxxxxxxxxxxxxx
Date: Monday, July 28, 2008, 6:29 PM






If I understand the science behind this (and I am not sure I do), the problem is that a battery is created because of the dissimilar metals being separated by the liquid. So, the "Potential Difference" (or Voltage) created between the Aluminum and Stainless is what causes damage to the Aluminum (the weaker metal). 

Assuming what I wrote above is correct, a wire between the SS bottle and aluminum engine would "short" the battery out... so there would be a potential difference of zero... But, would that stop the damage to the Aluminum?

Maybe someone who understands this can explain it better. :)

--- On Mon, 7/28/08, Martin Gutkowski <martin@delorean. co.uk> wrote:

Hi Marc

I genuinely do not know the answer to this one, I just found that 
article and deemed it relevant. However it makes sense to me that a 
ground wire might make the situation worse, because you're then 
providing a short curcuit to the "battery" created between the stainless 
bottle and the aluminium block.

Martin

 














      

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