What stops corrosion on a boat?

The best way to fight back against this type of corrosion on your boat’s engine is to keep it clean. Start with a good external boat engine cleaner, followed by a silicone spray to protect its metal surfaces. Flush your boat’s engine after every outing, then clean it and spray it with silicone.

What causes corrosion on boats?

This corrosion is caused by an external current flowing from a battery or other DC source. This current flows out of the metal into the water and causes loss of material or corrosion in the process. Common causes include a bare wire in the bilge on incorrectly wired or installed equipment.

What does a MerCathode do?

Answer: The Mercury Precision MerCathode system provides automatic protection against galvanic corrosion. It is a solid-state device that operates off a boat’s 12-volt battery and provides protection by impressing a reverse blocking current that stops the destructive flow of galvanic currents.

How often should I service my MerCruiser?

Answer: Every 300 hours or 3 years, whichever comes first.

How do you prevent corrosion on outdrives?

Preventing Damage to Your Underwater Fittings

  1. Check your outdrive for signs of corrosion several times each season.
  2. Make sure you have the recommended number and type of anodes (aluminum works best for the vast majority of cases) and make sure they are in contact with what they are protecting.

How do you stop aluminum corrosion on a boat?

Paint the hull. The best way for stopping corrosion on an aluminum boat is to paint the hull. Bottom paint prevents fouling. Be sure to paint up to the water line, and patch nicks or chips as soon as possible.

How do I know if Mercathode is working?

It shouldn’t have any paint and if it looks a little crusted that’s a good sign of it working. The type of water and current will effect how well the system works. The mercathode polarizes the water around your drive but only so far out.

What is Mercathode on Mercruiser engine?

It is a solid-state device powered by the boat’s 12-volt battery and provides protection by impressing a reverse-blocking current in the water that stops the destructive flow of galvanic currents.

How long do MerCruiser engines last?

Could last 30 years , or 30 hrs . No such thing as ‘typical’ when it comes to boats. Assuming regular maintenance done by a reputable professional, and assuming the boat gets used regularly and doesn’t sit around for long periods of time, and you don’t run all day at WOT, 1200-1500 hours should be easy to achieve.

Is MerCruiser a good engine?

The main reason boaters select Mercruiser is the engine’s reliability. Using an engine you can count on throughout your ownership is a big perk. Boaters also appreciate the Mercruiser’s fuel efficiency and performance.

What causes corrosion on an outdrive?

You might not think that a boat’s power connection could have anything to do with a corroding outdrive, but it can; aside from missing anodes, it is probably the most common cause of severe corrosion. Boats plugged into shore power share the green ground wire with every other boat in the marina that is plugged in.