![]() ![]() This is called closed loop cooling, and it is usually used on larger boats with more complex engines. Some boats, like cars, have a cooling system that not only uses sea-water to cool the engine, but also use antifreeze or coolant in a separate cooling system. An impeller puller is the proper tool, but most times it can be swapped with pliers and a screw driver. How-to fix : Keep a spare on board, as they can usually be changed out with basic hand tools. For many boats this is done during annual service work. It should be inspected often, and replaced as needed. Over time the rubber raw water pump impeller degrades, or can be damaged by debris in the water. As it spins it sends cool water on to your engine. Think of a paddle wheel, that is what it looks like. Inside this pump is a small rubber impeller. ![]() Most sailboats and powerboats, and even outboard boats, have a pump which feeds the engine water. The next most popular culprit which cases boat overheating is wear and tear or failure of the water pumps impeller. Only do so if it is safe, otherwise call a professional. If entering the water, check your surroundings and water temperature. For sailboats, inboards, and jet-skis, this may require a jump into the water to clear the water intakes.Īnytime you are working with the engines or entering the water, be sure to make sure the boat is turned off and the key is out. How-to fix: To solve this, lift the stern drive or outboards and check to see if the little grate where the water goes in is all clear. Growth of sealife while the boat is at anchor can also clog water intakes. As the boat’s water pump creates a hefty amount of suction, it is easy for debris to be sucked into and clog the raw water intake. Weeds and plastic bags are almost always the first thing to check for when you hear the dreaded beeping or your temperature gauge goes into the red. If your boat doesn’t have a strainer, or is outboard driven such as popular bass fishing boats and center consoles, don’t fret, there is still another place to look.Ģ. How-to fix: The water strainer is usually located close to the water intake, just follow the hose that goes from your water pump to the bottom of the hull. Before you go searching under the water, for a problem, check your boats water strainer by unscrewing it and cleaning it’s screen. Most boats have a water strainer which catches harmful items before they can cause damage to your engine. The number one cause for overheating boat engines is a problem with the flow of water to the engine. Here are a few reasons why your boat may be overheating and how to fix it: 1. There are many reasons why you could have an overheating problem on your boat. Top 7 Reasons Your Boat is Overheating & How to Fix It Having had this happen on other boats while transporting across the Gulf Stream, we thought we would share some tips to help those that haven’t encountered a boat motor overheating issue yet. The problem was caught quickly as we showed a slightly above normal temperature reading. ![]() We sucked up some Sargassum weed in the Bahamas. Luckily we have only had to deal with this issue once aboard SV Sweet Ruca. ![]()
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