At 09:03 PM 9/23/98 -0700, you wrote:

>>Perhaps some dissolved zinc in our coolant would work, I suppose that
would make regular coolant
>>changes absolutely mandatory to insure that the "anode" material has not
>>been completed consumed by the reaction.
>

>        Based on a concept used in marine applications, the Rad Cap
>        contains a sacrificial magnesium anode that hangs from the underside
>        of the cap and is immersed in the coolant. The idea is that magnesium
>        is a more active metal than aluminum, so it will dissolve before
>        aluminum, saving wear on the engine's aluminum parts.

>      OLTECO                    Ari Ollikainen

OK, how 'bout dropping a chunk of Mg into the (pressurized) expansion tank?

Austin

PS - a few catalogs back, JCW had (on the back cover?) an anti-corrosion
system that involved anodes + battery power through a 'black box'...any
thoughts?