Re: [DML] Stainless in coolant system

["Toby Peterson" <Toby@xxxxxxxxxxxxxxxxxx>]

Hi Gang - I had posted a file in the "Files" section last March 
regarding this issue (Galvanic Corrosion).  This information was 
provided in response to an individuals desire to change all coolant 
pipes to stainless steel.  There are a couple of things that the 
information reveals.  First is that adding more stainless steel to the 
system would be bad, in terms of galvanic corrosion.  As Dave S. points 
out later in this thread, much of that can be mitigated by refreshing 
the coolant regularly.  The second is that brass and bronze are also 
very bad in a system with a lot of aluminum parts.  In essence, the 
aluminum becomes sacrificial to stainless steel and brass.  Aluminum 
will leave the engine block and heads, and will be attracted to the 
stainless steel and brass areas, where it forms aluminum oxides.  All 
of that white crud in the radiator used to be part of the engine block, 
heads, aluminum coolant pipes, etc.

Toby Peterson  VIN 2248 "Winged1"
DMC Northwest
DeLorean Parts Northwest

--- In dmcnews@xxxxxxxxxxxxxxx, Martin Gutkowski <martin@...> wrote:
> 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.



------------------------------------

To address comments privately to the moderating team, please address:
moderators@xxxxxxxxxxx

For more info on the list, tech articles, cars for sale see www.dmcnews.com

To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/dmcnews/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/dmcnews/join
    (Yahoo! ID required)

<*> To change settings via email:
    mailto:dmcnews-digest@xxxxxxxxxxxxxxx 
    mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx

<*> To unsubscribe from this group, send an email to:
    dmcnews-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/