Types of SQR372 engines
The SQR372 engine is a Chinese-made car engine produced by the Chery Automobile Company. The SQR372 engine is a 1.5-liter, 4-cylinder, naturally aspirated petrol engine from the SQR370 series. The SQR372 engine is known to be reliable, efficient, and affordable. The engine has a good balance of power and fuel efficiency, making it suitable for everyday commuting and city driving. The SQR372 engine is mostly used in small cars and compact models. The engine is used to compete with other international car engine brands. The SQR372 engines are widely used in various Chery and Cowin car models. The SQR372 engines are known to be cheap and affordable. The maintenance costs are lower than average, and the parts are easy to find. The SQR372 engines are known to be noisy and rough. Some users reported that the engine sounds loud and the vibrations felt in the cabin. The power output of the SQR372 engines is lower compared to the competitors.
- SQR372Q1: This is the base version of the SQR372 engine. The SQR372Q1 engine has a maximum power output of 80 kW and a maximum torque of 135 N·m. The engine is mostly used in Chery cars like Chery QQ and Chery A1.
- SQR372Q2: The SQR372Q2 engine is a more powerful version of the SQR372Q1. The SQR372Q2 engine has an upgraded power output of 85 kW and a maximum torque of 140 N·m. Car manufacturers use this engine in newer versions of the Chery QQ and Chery A1 models.
- SQR372Q3: The SQR372Q3 engine is the most powerful version of the SQR372 engine. The SQR372Q3 engine has a maximum power output of 90 kW and a maximum torque of 145 N·m. The SQR372Q3 engine is mostly used in Cowin cars.
Specifications and Maintenance of SQR372 Engines
Specifications
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Engine type
The SQR372 is a 4-cylinder, in-line, water-cooled, 4-stroke internal combustion engine. It is a gasoline engine.
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Displacement
The total volume of all the cylinders in the engine is 1.372 liters (or 1372 cc).
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Power output
The engine generates a maximum power output of 70 kW (or 95 hp) at 5500 rpm.
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Torque
The engine generates a maximum torque of 130 Nm (or 96 lb-ft) at 3000 rpm.
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Fuel system
The SQR372 engine has a multi-point fuel injection system. This system uses several fuel injectors to atomize and distribute fuel into the engine's air intake manifold.
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Ignition system
The engine has a distributorless ignition system (DLI). In this system, one or more ignition coils provide high voltage directly to the spark plugs without the need for a distributor.
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Valve configuration
The SQR372 engine has a double overhead camshaft (DOHC) valve configuration. This configuration has two camshafts, one for each engine bank, located above the engine's cylinder head.
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Camshaft drive
The camshafts in the SQR372 engine are driven by a timing chain. The timing chain connects the camshafts to the engine's crankshaft and ensures that the camshaft rotates in sync with the crankshaft.
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Bore and stroke
The diameter of the engine's cylinders (bore) is 72 mm, and the distance the pistons move within the cylinders (stroke) is 75 mm.
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Compression ratio
The SQR372 engine has a compression ratio of 9.5:1. This ratio is the comparison of the maximum and minimum cylinder volumes.
Maintenance
Regular maintenance is crucial for the proper functioning of the SQR372 engines. Here are some maintenance tips:
- Oil change: The engine oil should be changed at least every 5,000 miles or 6 months. This maintains the oil's ability to lubricate the engine parts and its proper flow. The oil filter should also be replaced to prevent impurities from getting into the engine oil.
- Air filter replacement: The air filter should be inspected every 10,000 miles and replaced if worn out. A clean air filter ensures proper airflow into the engine for efficient combustion.
- Spark plug inspection: Spark plugs should be checked every 20,000 miles. They should be cleaned and gaps adjusted to promote efficient combustion.
- Coolant level check: The engine coolant level should be checked at least once a month. The coolant prevents overheating of the engine and also maintains its optimal operating temperature.
- Fuel system cleaning: A fuel system cleaner should be added to the fuel at least every 15,000 miles. This removes deposits in the fuel system and promotes optimal fuel flow into the engine.
- Timing chain inspection: The timing chain should be checked for wear or damage every 50,000 miles. It should be replaced if necessary to ensure that the camshafts and crankshaft are in sync.
- Valve clearance adjustment: The valve clearances should be checked every 40,000 miles. They should be adjusted to the recommended specifications to prevent valve and piston damage.
- Regular engine checkup: The engine should be taken to a certified mechanic for a complete engine diagnostic test every 30,000 miles.
How to Choose SQR372 Engines
Choosing the right SQR372 engine can be a daunting task. There are several factors to consider, such as the level of power needed, the amount of fuel that will be used, the type of emission standards that must be met, the climate and operating conditions, and the cost of the engine and its maintenance. Here are some of the factors in detail:
- Power requirements: The first thing to consider is how much power is needed for the specific tasks and operations. The SQR372 engines come in different power outputs, so it is important to choose one that matches the requirements without going overboard. This ensures optimal performance and efficiency.
- Fuel efficiency: The SQR372 engine's fuel efficiency is also an important consideration. A more fuel-efficient engine will help in saving fuel costs over time. However, other factors also affect the engine's fuel efficiency, such as the load, maintenance, and driving habits.
- Emission standards: Another important thing to consider is the emission standards of the SQR372 engines. Different countries and regions have set emission standards that need to be followed. Users should choose an SQR372 engine that complies with the emission standards set in their area to minimize environmental impact and avoid penalties.
- Operating conditions: The SQR372 engine's features should also be considered based on the operating conditions. For instance, if the engine is to be used in extreme hot or cold environments, choosing one that has better performance in such conditions is important. Other features, such as noise levels and vibrations, should also be considered based on the operating environment.
- Cost and maintenance: Finally, the cost of the SQR372 engine and its maintenance are important factors to consider. Choosing an engine that is affordable and has a lower cost of maintenance is important. Apart from this, the availability of spare parts and the ease of maintenance should be considered.
How to DIY and Replace SQR372 engines
Replacing an SQR372 engine can be a complicated process, and it usually requires the right tools and mechanical knowledge. Below is a DIY guide on how to replace the SQR372 engine:
- Prepare the vehicle: First, the car or truck should be parked on a flat surface. The parking brake should be engaged, and the hood should be opened to provide adequate lighting and ventilation.
- Disconnect the battery: The battery should be disconnected to prevent any electrical short circuits or accidents. First, the negative cable is disconnected, and then, the positive cable is disconnected.
- Drain the fluids: The coolant, oil, and other fluids associated with the engine should be drained and properly disposed of. This should be done after reading the user manual to know the exact location of the drainage ports.
- Remove the engine components: start by removing the engine components like the air intake system, exhaust manifold, fuel system, and electrical connections. The details of these components can be found in the user manual. Once the components are removed, they should be kept in a safe place to avoid misplacement.
- Lift the vehicle: Depending on the vehicle's design, it may be necessary to lift it using an appropriate jack and jack stands to access the underside of the engine.
- Support the engine: An engine hoist or support should be used to hold the engine and prevent it from falling once it is disconnected from the engine mounts.
- Remove the engine: The engine should be unbolted from the engine mounts with the help of a ratchet and socket. Once it is unbolted, the engine can be lifted out of the vehicle using a hoist.
- Install the new engine: Before installing a new engine, it should be checked to ensure it is compatible with the vehicle. The new engine should be aligned with the engine mounts and then bolted using a ratchet and socket.
- Reconnect the engine components: The components that were disconnected should be reconnected in the same order as they were disconnected. This includes electrical connections, the fuel system, the exhaust manifold, and the air intake system.
- Refill fluids: The engine oil and coolant should be filled to the recommended levels. Other fluids, such as transmission fluid, should also be drained and refilled as necessary.
- Perform a pre-start checklist: Before starting the engine, a pre-start checklist should be performed. This includes checking for any leaks, ensuring all components are connected, and verifying fluid levels.
- Start the engine: The engine should be started and allowed to run for a few minutes. It should be monitored for any unusual noises, vibrations, or warning lights on the dashboard. After the engine has been started, the hood should be closed, and the vehicle should be taken for a test drive to ensure everything is functioning as expected.
Q and A
Q: What does SQR372 stand for?
A: SQR372 is not just a code; it represents a powerful and efficient engine that drives many vehicles. SQR372 is an engine code used to refer to a specific engine configuration in vehicles. SQR372 is a 4-stroke internal combustion engine that generates power through the process of burning fuel.
Q: What is the SQR372 engine?
A: The SQR372 engine is a 1.5L, 4-cylinder, water-cooled, and in-line petrol engine. It has a maximum output of 72kw/6000rpm and a maximum torque of 135N.m/3200rpm. The SQR372 engine has a Compression ratio of 9.5:1 and a bore x stroke of 75mm x 84mm. The SQR372 engine has an intake system with a dual overhead cam (DOHC), and it uses petrol as fuel. The SQR372 engine has a cooling system with a capacity of 3.5L and an oil system with a capacity of 3.5L. The SQR372 engine is designed to provide maximum power and torque while maintaining fuel efficiency and reliability.
Q: Is the SQR372 engine good?
A: Yes, the SQR372 is a good engine. The SQR372 engine is designed to provide maximum power and torque while maintaining fuel efficiency and reliability. It is commonly used in small to medium-sized cars, providing adequate power and performance for everyday driving needs.