Fred -- Sorry, but I'm going with Yanmar on this one. If the engine needed a zinc, they would've installed one at the factory. If you ever own a 2GM20F, fell free to install a zinc. Mine is 20 years old and surely would've fallen apart from galvanic corrosion by now if it were an issue.
SailorMitchSailing winged keels since 1989.
1.20.09 Bush's last day the end of an error !! Hopefully we still have a constitution and economy left by then.
"Compassion and tolerance are not a sign of weakness, but a sign of strength." The Dalai Lama
good planets are hard to find-- a song by steve forbert
I have but one lamp by which my feet are guided, and that is the lamp of experience. I know no way of judging the future but by the past.-- Patrick Henry.