As far in know is the combination of aluminium and cast iron a unlucky
combination.
A copper core radiator is the protected part which is passivated very quickly
and the electrolysis.
With aluminium the core try to protect itself but it is only building a jelly
that is pumped through the system.
So a special fluid is needed with cast iron engine or the aluminium core will
get porose one day.
Chris
----- Original Message -----
From: "Allen Washatko" <awashatko@wi.rr.com>
To: "Friends of Triumph" <fot@autox.team.net>
Sent: Tuesday, January 30, 2007 1:47 PM
Subject: [Fot] Aluminum Radiators and Electrolysis
> FoT,
>
> I am now the proud owner of a Ron Davis aluminum radiator. It is so
> beautiful that my wife hasn't complained about it being on display in
> our dining room!
>
> The instruction sheet talks extensively about the issue of electrolysis
> and suggests grounding the radiator as well as the transmission to
> prevent static electricity from traveling to ground through the
> coolant. It also says to not use any brass components in the cooling
> system as brass and aluminum react to each other causing electrolysis.
> The sender unit on my water temperature gage has a brass bulb that is
> located in the water pump. any thoughts as to what I should do ? I
> don't believe that I have ever seen any other type of metal used.
>
> Allen
>
> A l l e n W a s h a t k o
> 1971 TR6 - Number 6
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> Fot@autox.team.net
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