1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 865Get this manual
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MERCATHODE SYSTEM DESCRIPT ON A prope rl installed MerCathode Sys tem wi ll fu nct ion tro uble-fr ee To ns ure proper corrosion pr ote ction, however, it is recommended th at the ystem be chec ke wit