Quote:
Originally Posted by Formula
Why have them changed if the boat has not seen water (except for the test tank)?
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Nice boat - looks like you even had a tour of the factory; good luck!!
Electrolysis occurs at the Lake (Not as much as Salt Water) but it's here; especially around busy marinas where there are a lot of shore power hooks ups. Mercruiser installs aluminum or zinc anodes from the factory which is meant for the salt water; magnesium is a much softer metal which is more prone to be eaten away with electrolysis. If you keep the harder metal on for anodes the electrolysis in the water over time will attack your outdrives; using magnesium in fresh water and changing every season will prolong the life of those new B3 drives.
Captn'J