Re: [DML] *** SS water return pipe = Battery ***
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Re: [DML] *** SS water return pipe = Battery ***

I'm definitely not an expert here but I'll try and explain. My father 
who was a mechanical engineer used to tell me not to put aluminium and 
stainles pans in the washing up together. There were corrosiion marks on 
the ally pan and that was why. It's some sort of galvanic current which 
pits the aluminium (I'm british :-). It'll happen in water that's not 
pure - and anything short of distilled water is impure (distilled water 
does not conduct electricity for the same reason)

However, if you're using decent anti-freeze, the anti-corrosion agents 
in it should prevent the corrosion, and there'a  lot of metal to get 
through before causing problems, but my 2p is why risk it at all? I know 
of Lotus owners who've had trouble with stainless header tanks furring 
up the radiators woth ally from the engine.

But I'm no expert - someone please prove me wrong :-)


Jonathan Minor wrote:

>I am also curious about the reaction between AL and
>stainless...When I replaced the water pump in my 89
>camaro about a year and a half ago, the bolts were
>eaten away and I wanted to replace them with new bolts
>that would last forever(stainless) but I was told not
>to because a reaction between stainless and AL creates
>a charge, so I got some regular bolts.
>I also thought of that when I herd about the stainless
>overflow bottle... Can someone explain?
>Jon Minor(no vin)

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