Cooling System Parts
The cooling system is designed to remove heat from the engine to keep the engine operating in the optimal temperature range. Without the cooling system of a vehicle, it would run but it will not stay long. When the engine is overheated the head gasket will be burned, the valve seals will be melted, the piston rings if not stuck it will be broken, the cranked shaft bearings will be crushed or the crankshaft will crack or broken. Any of these issues will come if the cooling system fails to do its job.
The cooling system is comprised of the following parts…
1. Oil: Oil cooling is the use of engine oil as a coolant, typically to remove surplus heat from an internal combustion engine. The hot engine transfers heat to the oil which then usually passes through a heat exchanger, typically a type of radiator known as an oil cooler-Wikipedia
An article on Facts About Motor Oil discusses the importance of Motor Oil.
2. Coolant: Coolant is generally a mix of water and ethylene glycol. Many times called Anti-Freeze, coolant serves many purposes. As the common name implies, coolant prevents freezing, but it also provides lubrication for the water pump, increases boiling point of water, and keeps rust and scale from forming in your cooling system. Coolant must be changed on a regular basis, check your owner’s manual for the recommended schedule. PH level is critical to keeping your coolant from becoming a metal-eating liquid. When you check your coolant for freeze point, also check out the PH level and make sure your coolant has not turned acidic.
3. Water: Pure water is generally and commonly used as a cooling agent in the cooling system by car owners instead of coolant. Its high heat capacity and low cost make it a suitable heat-transfer medium. It is usually used with additives, like corrosion inhibitors and antifreeze.
4. Radiator: The radiator is a series of thin channels where the coolant flows through and is cooled by air flowing through it. It is important to keep your coolant in good condition to keep the channels open in the radiator. Following your manufacturers’ recommendation for changing your coolant, to keep your radiator in good shape.
5. Water Pump: The water pump is either driven by the fan belt or the timing belt on some newer vehicles. The pump moves coolant from the radiator, through the engine, and back into the radiator. The pump has a shaft with a pulley on one end and a pump rotor on the other end. When the pulley is spun by a belt, the rotor moves the coolant.
6. Thermostat: The thermostat controls the flow of coolant through the engine. When your engine is cold, it actually operates with less efficiency. So until the engine warms up to the ideal temperature, the thermostat keeps the coolant from flowing. Your thermostat can fail in either an open or closed condition. When it fails in the open position, your engine may actually run too cold and you will have bad gas mileage. If the thermostat fails in the closed position, your engine will overheat since no coolant will be flowing through the engine.
7. Hoses: The hoses carry the coolant from the radiator to the water pump and from the engine to the radiator. Hoses are generally made of rubber and can deteriorate with time. The hose should be flexible and not dry rotted (check for tiny cracks in the hose)
8. Radiator Fan: I would include a radiator fan as necessary to be a component of the cooling system. I’m very sure even if you have all those others without the fan your engine will overheat. This fan is responsible for blowing air to the radiator especially when you are in heavy traffic. A related article on Freewheeling Radiator Fan gives more details on the discussion.
In summary, the cooling system is essential in the performance of the engine whether in light or in heavy-duty. It’s a system where each part is inseparable in cooling the engine to avoid burning of gaskets and immediate destruction of engine parts due to excessive heat.