What causes a marine fresh water cooling system to leak?
Once the safety margin in the expansion tank is used up, air will enter the closed system. Since a mixture of air and coolant is insufficient as a heat carrier overheating will result. Some leaks may be difficult to find unless system is under pressure. This pressure is created by normal engine temperature.
How does the cooling system of an engine work?
The central part of the cooling system is the water jacket. This is the series of passages through which the water flows in order to absorb the heat from the engine block. The water jackets of modern engines are cast as an integral part of the engine block and cylinder head, and the water passages run down the full depth of the block.
Where does the cooling water go in a diesel engine?
The cylinder jacket cooling water after leaving the engine passes to a sea-water-circulated cooler and then into the jacket-water circulating pumps. It is then pumped around the cylinder jackets, cylinder heads and turbo-blowers.
What should be on the suction side of a marine fresh water cooling system?
That is why hoses on the suction side, unless they are very short, should be either wire reinforced or have a loose spring inside to prevent collapsing. Some older designs may have a rubber impeller pump or even gear pumps.
What causes coolant to leak from the hood?
Coolant may move through many different hoses under your vehicle’s hood. If one of these hoses develops a crack or hole, coolant may leak. Hoses in your vehicle’s cooling system must connect to different components. Some connections may have hose clamps, while others may attach on their own.
Can a blown head gasket cause coolant to leak?
If the head gasket fails, coolant, and engine oil may mix. You may also notice that coolant is leaking from the bottom of the engine and dripping onto the ground. Either way, a blown head gasket can be disastrous for your engine.
Do you have to take coolant leak seriously?
That is, even though coolant is commonly called antifreeze, it is essential year-round. Therefore, if you have a car leaking coolant, you must take the leak seriously. Fortunately, finding a coolant leak may not be as difficult as you may think.
Can a hot coolant leak cause a burn?
You must be careful when checking fluid levels, though. If the engine is not completely cool before you remove the radiator cap, you may suffer a serious burn from escaping steam or hot coolant. Therefore, you should never open the radiator cap or the coolant reservoir when your car’s engine is hot.