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post #5 of Old 10-11-2009
Cal 9.2 SilverSwan
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I have the 2GM20 raw water cooled version, 2 zincs. 1 in the block on the dip stick side, just back and above it . The other is on the rear side of the head. They need to be there even in fresh water.

Cal 9.2 #19 SilverSwan
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