If all you need is some zinc grounded to the case, why not replace the coolant drain screws with galvanized screws? Bill >Well, I was once a chemist, but not anymore. But I do know that zinc >has a higher electrochemical potential than the iron and >aluminum/magnesium alloys found in our engines. That means it more >readily donates its unpaired electrons in solution than the others, and >is consumed first. Hence, the term "sacrificial anode." This forms >zinc salts, and I can't imagine them causing any problems with the >coolant. >I wouldn't expect to get any more than the recommended two years out of >standard coolant however, because as the normal acids form the zinc will >be "sacrificed" quickly. >The zinc should be grounded to the case, and that is how the $50/pair >Z-Sticks from FGA work. They are supposed to replace the water jacket >drain plugs on each side of the case. Kinda pricey, but probably worth >it. |
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