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Spark plugs have no expiration date, and as long as the electrode ignition is normal, they can be used for as long as they are placed.
A small increase in the calorific value of the spark plug has little effect on the vehicle, and it is not obvious to the senses, so it can be used.
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1. When we match the spark plug, the calorific value of the spark plug is the same as that of the original spark plug, because the calorific value of the spark plug has been debugged to the best state for the engine when the automobile manufacturer tests the engine. But if you are in a hurry to replace it, and there is no spark plug with the right calorific value in the auto repair shop, then you can replace the spark plug with a number higher than the original calorific value, and the impact of a point error on the car is not too great.
2. The calorific value includes nine numbers of 1 9, of which 1-3 is the low calorific value, 4-6 is the medium calorific value, and 7-9 is the high calorific value. The higher the calorific value, the faster the heat dissipation, the lower the temperature of the spark plug, and the carbon deposition in the ignition part will cause the spark plug to jump in the power test; The calorific value is low, the heat dissipation is slow, the temperature of the spark plug is high, resulting in deflagration, etc., which is easy to make the ceramic ablation of the spark plug part and damage the electrode.
3. When installing, first use the sleeve to align the spark plug with the screw hole, gently screw it in by hand, screw it to about 1 2 of the full length of the thread, and then tighten it with an afterburner lever. If the hand feeling is not smooth when twisting, you should exit to check whether there are impurities in the screw or thread, and you must not blindly tighten it, so as not to damage the screw hole and affect the cylinder head.
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Summary. Hello, it is a pleasure to serve you, NGK LKR8AP spark plug is a double iridium spark plug. The spark plug uses advanced dual iridium center electrode technology, which can provide excellent ignition ability and durability performance, effectively ensuring the normal operation and stability of the engine.
The application of dual iridium center electrodes can reduce spark plug wear, improve heat dissipation performance and ignition ability, thereby extending the life of the spark plug and improving the performance of the engine. Therefore, the NGK LKR8AP spark plug is a premium product suitable for the Great Wall C50 engine, which can provide the performance and durability required by the Great Wall C50 engine.
Hello, very high Lu Mu Xing for your service, if your Great Wall C50 vehicle is equipped with Great Wall self-developed engine (or GW4G15B model), then the most suitable spark plug is NGK LKR8AP. This spark plug is a product of the Japanese NGK brand, with high quality, durability and excellent ignition ability, which is suitable for the engine of the Great Wall C50.
Is it double iridium?
Hello, the following are the recommended spark plugs for the Great Wall C50 commonly used engines and corresponding wild postures:1Engine (GW4G15B model):
NGK LKR8AP, NGK IFR6T11, Denso engine (4G18S model): NGK LKR6B, Denso IK16. Ode 3
Engine (4G20S model): NGK IFR6T11, Denso IK20.
Hello, it is a pleasure to serve you, NGK LKR8AP spark plug is a double iridium spark plug. The spark plug uses advanced dual iridium center electrode technology, which can provide excellent ignition ability and durability performance, and effectively ensure the normal operation and stability of the engine. The application of the double iridium center electrode can reduce spark plug wear and improve heat dissipation and ignition capacity, thereby extending the life of the spark plug and improving the performance of the engine.
Therefore, the NGK LKR8AP spark plug is a high-quality product suitable for the Great Wall C50 engine, which can provide the performance and durability required by the Great Wall C50 engine.
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The Great Wall C50 has four spark plugs. The spark plug is an important element of the ignition system of the gasoline engine, which can introduce high-voltage electricity into the combustion chamber and cause it to skip the electrode gap and generate sparks, thereby igniting the combustible mixture in the gas cylinder. It is mainly composed of a wiring nut, an insulator, a wiring screw, a central electrode, a side electrode and a shell, and the side electrode is welded to the shell.
The role of the spark plugThe spark plug cracked, commonly known as the fire nozzle, its function is to send the pulse high-voltage electrical discharge from the high-voltage wire, penetrate the air between the two electrodes of the spark plug, and generate an electric spark to draw the mixed gas in the cylinder. The main types are quasi-type spark plugs, edge body protruding spark plugs, electrode type spark plugs, seat type spark plugs, pole nano type cave type spark plugs, surface jump fire type spark plugs, etc.
The function of the spark plug is to introduce tens of thousands of volts of high-voltage electricity into the combustion chamber, and generate an electric spark to ignite the mixture, and cooperate with the ignition system and oil supply system to make the engine work, which determines the performance of the engine to a large extent.
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The calorific value of the Citroen spark plug is 7.
The calorific value of the spark plug indicates the balance of heat absorption and heat dissipation of the skirt of the spark plug insulator. The higher the calorific value, the stronger the balance of heat absorption and heat dissipation of the spark plug, the higher the speed at which the fire beam spark plug exports heat from the combustion chamber, and the lower the working temperature of the spark plug, such a spark plug is called a cold spark plug.
The lower the calorific value, the worse the balance between heat absorption and heat dissipation of the spark plug, the lower the speed at which the spark plug exports heat from the combustion chamber, and the higher the operating temperature of the spark plug.
The consequences of choosing the wrong calorific value of a spark plug
1. The cold spark plug with a higher calorific value should be used, but the hot spark plug with a lower calorific value is used, then it will lead to poor heat dissipation of the spark plug, and the temperature of the spark plug is brighter and high, when the combustible mixture in the combustion chamber is in contact with the hot insulator, a hot spot fire will occur, which will lead to premature ignition or detonation of the engine, and even burn the spark plug in serious cases.
2. The thermal spark plug with low calorific value should be used, but the cold spark plug with higher calorific value is used, which will cause the spark plug to dissipate heat too quickly, the spark plug temperature is low, and the self-cleaning temperature of the spark plug cannot be reached, and the carbon deposit on the spark plug will increase, which will affect the normal ignition of the spark plug, and cause the engine to shake, accelerate and other faults.
Calculation Evaluation Method:
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