Control corrosion before it starts

There are two types of corrosion that can damage your engine: galvanic corrosion and oxidation. Galvanic corrosion happens when two dissimilar metals are immersed in water, which causes them to become electrically connected. Unprotected, the aluminum drive components on your engine can be eaten away before you know it. There are several ways to prevent galvanic corrosion. All Mercury/Mariner/Force outboards are equipped with sacrificial anodes. Inspect them regularly and replace them when they are approximately 50% eaten away. Never paint the anodes. If your boat is plugged into shore AC power, use a galvanic isolator to prevent stray currents from improper wiring on docks and/or neighboring boats from creating galvanic currents that can damage your outboard. If you have an outboard equipped with a stainless steel prop and your boat stays in the water all the time, consider purchasing a MerCathode® System to protect your investment. The electronic MerCathode produces a field of electrical current to protect your outboard from galvanic corrosion. During and after the boating season, simple periodic inspections can detect oxidation problems before there's any engine damage. For severe saltwater conditions, regularly apply Quicksilver Special Lubricant 101, 2-4-C, or Anti-Corrosion Grease to the prop shaft and other bare metal surfaces to help prevent corrosion. Before end-of-season storage, treat your engine with Quicksilver Storage Seal Rust Inhibitor to prevent internal corrosion. Touch up any paint nicks or scratches with Quicksilver touch-up paint. Spray the engine, including wires and connections, with Quicksilver Corrosion Guard.

Thanks to Mercury Marine for this tip






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