Is it necessary to change the spark plug? Do the spark plugs need to be replaced

The spark plug function of the vehicle can help the vehicle start the vehicle normally and drive the engine of the vehicle to run normally.

The spark plug of the vehicle has a service life, and even if the spark plug does not fail, it is recommended that the owner replace the spark plug of the vehicle regularly. If the spark plug of the vehicle enters the aging state, it will seriously affect the performance of the vehicle, make the owner feel that the vehicle is weak, and the phenomenon of shaking occurs, and the fuel consumption of the vehicle will increase significantly.

When the owner uses the car, this kind of situation should be avoided, so it is recommended that the majority of car owners must regularly replace the spark plug of the vehicle. Under normal circumstances, spark plugs made of ordinary materials need to be replaced once when the vehicle has traveled 20,000 kilometers. The spark plug made of platinum needs to be replaced once when the vehicle has traveled 40,000 kilometers.

The iridium spark plug needs to be replaced once when the vehicle has traveled 60,000-80,000 kilometers.

1.The flammable mixture is too thick. The remaining unburned part will accumulate in the spark plug electrode.

On carbonization, which leads to the abnormal ignition of the flower plug until it is damaged by charcoal. The reason for the excessive concentration of the combustible mixture is generally that the oil level of the carburetor is too high and the carburetor is dominant.

The air measuring hole is blocked, and the air filter element is seriously blocked. In addition, the choke door of the carburetor is stuck and cannot be fully opened, or the thickening valve is not working well, which is also the cause of the overconcentration of the combustible mixture.

2.Engine channeling oil. During the operation of the engine, if the exhaust pipe is blue.

Smoke, black smoke, indicates that excess oil is entering the cylinder, which will cause the spark plug electrode to be generated.

A large amount of carbon is deposited, or it is wetted by the engine oil and cannot jump the fire, this phenomenon is commonly known as engine channeling oil. For two-stroke engines, check whether the oil pump volume of the oil pump is too large, and whether the rod sleeve seal and check valve are invalid; For four-stroke engines, the activity on the piston should be checked.

Whether the plug rings, especially the oil rings, are worn. Then remove the intake valve and check the head and back for carbon deposits and wet grease. For example, the valve and valve guide are severely worn, the valve guide oil seal is hardened or the oil seal lip is worn.

Excessive, it will cause its fitting gap to be too large and lose its sealing effect. Both of these anomalies will eventually cause the oil in the rocker chamber of the valve to flow along the gas when the intake air is summed.

The door shaft is sucked into the cylinder, causing the phenomenon of burning oil. In this regard, the valve guide, oil seal or valve should be replaced separately depending on the wear and tear.

3.In the ignition system, magneto demagnetization, ignition coil and electronic ignition inside, generator output end and ignition coil loser end of wire connection loose, as well as incorrect ignition advance time, such as improper timing, can affect ignition performance, and ignition performance is poor, can directly cause spark plug electrode carbon deposit.

4.Pay attention to whether the model and calorific value of the spark plug comply with the provisions of the instruction manual. If.

When the calorific value is one or two gears lower than the instruction manual, the temperature of the spark plug will rise.

It is very high, and its heat cannot be dissipated in time, which causes abnormal combustion, and eventually leads to the melting of the spark plug electrode and premature damage. The spark plug itself is installed and used.

There are also some failures that are not easy to detect and also affect the ignition performance. For example, the spark plug is poorly sealed, the spark plug is not firmly fixed, the spark plug insulator is broken, etc., it should be adjusted in time or.

Replacement. 5.If the crankcase oil is filled too much, if the ventilation pipe is blocked, the pressure in the crankcase will increase and cannot be balanced.

I changed it before 50,000 yuan, and 95% of the time I ran was the road to and from the new urban area, and I felt that I could continue to use it. It mainly depends on your usual maintenance and driving habits of the car. Don't worry, change it as soon as possible, after all, you don't know how the original owner used the car before.

My colleague's Yinglang is more than 40,000, and he has been dragging and refusing to change the spark plug, and finally lacks the cylinder, spark plug and 4 ignition wires.

Spark plugs are the parts used in automotive systems to ignite combustible gas mixtures, and since they need spark plugs to do work every time the engine runs, they are definitely the most frequently used parts in automobiles. At the same time, because spark plugs need to work in a high-temperature and high-pressure environment, they need to be checked and replaced regularly. Replacing the spark plug is not a difficult task, and it can be done by yourself.

How to change the spark plug.

First of all, you need to prepare the tools for disassembly and assembly, including 10mm, 14mm, 16mm sockets, long adaptors, ratchet wrenches, magnetic rods, rags, etc.

1. After the engine is completely cooled, unplug the plug of the high-pressure bag, and then use a 10mm sleeve to remove the fixing bolt, and the spark plug in the cylinder can be seen after the high-pressure bag is removed;

2. According to the size of the spark plug nut, select a 14mm or 16mm sleeve with a long adapter and rotate counterclockwise to loosen it, and use a magnetic rod to suck out the spark plug after loosening;

3. If you do not install a new spark plug in time after taking out the spark plug, insert the high-pressure bag back or plug the hole of the spark plug with a rag to avoid dirty things falling in;

4. Use a magnetic rod to absorb the new spark plug and plug it into the hole, and then reinstall it according to the opposite steps above, the torque of the spark plug should not be too large, about 20N·m;

5. Start the engine after replacing all the spark plugs and see if any spark plugs are not working properly.

1. When unplugging the high-voltage wire, you must not use force to shake the spark plug insulator, otherwise it will destroy the performance of the spark plug.

2. The engine guard plate can be opened only after the engine is completely cooled, and at the same time, attention should be paid to prevent external oil from entering the cylinder.

3. The screw plug electrode and gasket must be kept clean, otherwise it may lead to various safety hazards, such as air leakage and electricity leakage.

4. When installing, be sure to align the sleeve, screw it in slowly, screw it in half the length, and then fix it hard.

5. The spark plug should be tightened according to the principle of vertical disassembly and assembly of the spark plug, otherwise there may be air leakage.

In life, we commonly use spark plugs are copper-nickel alloy spark plugs, platinum spark plugs, iridium spark plugs, copper-nickel alloy spark plug material is the worst, so the life is the shortest, generally 3-50,000 kilometers to replace once, and platinum spark plug electrode material is better to replace once in 6-80,000 kilometers, iridium spark plug life is the longest in 100,000 kilometers. However, these data can only be regarded as estimates, and there is a certain relationship between the life of the spark plug and the working conditions of the car engine and the driving habits of the driver.

There are many reasons for the short life of spark plugs, such as poor quality of gasoline, often go to some private, substandard gasoline quality small gas stations to refuel, resulting in insufficient combustion, which is the most harmful. And often run some cars with bad road conditions, such as often used to run construction sites, mountain roads, muddy roads, etc. All of these factors will lead to a shorter spark plug life, and the replacement cycle needs to be brought a little earlier.

If the car often runs at high speeds, or runs in good road conditions, the replacement cycle can be postponed a little.

When the spark plug is in use, its electrodes and skirt insulators will have normal carbon deposits, and if these carbon deposits are not cleaned for a long time, they will accumulate more and more, and eventually lead to electrode leakage or even failure to jump over. Therefore, the carbon deposits should be removed regularly, and the spark plugs should not be cleaned until they are not working. The air filter should also be cleaned regularly to prevent dust from entering and combusting with the mixture, which will prevent corrosion of the spark plug.

If you hold the steering wheel with your hand when the engine is idling, you can feel the engine shaking regularly. The jitter disappears after the acceleration, which indicates that the performance of the spark plug has begun to decline, and it is time to think about whether the service life of the spark plug is close to its life, and it can be considered to replace it. In addition, when the car is driving in a certain speed range (e.g. 30 km h to 60 km h or when upshifting), the engine has a "shrugged" phenomenon.

At this time, the rapid acceleration, the engine power is stuffy, and the usual driving power will also feel obviously insufficient, accompanied by the increase in fuel consumption, and even the exhaust gun, sometimes black smoke, which indicates that the performance of the spark plug is seriously reduced, if other problems are ruled out, the spark plug should be replaced immediately.

Every brand of car has a replacement standard, if you don't change it: it is difficult to ignite, acceleration is weak, and if the spark plug is blown up, then you have to replace the cylinder head.

Spark plugs need to be replaced, according to different equipment, spark plug stops can be divided into many types, and the use and life are also different. If the spark plug is not replaced for a long time, the car will shake, unable to speed up, or unable to catch fire, so the spark plug should be replaced in time.

According to different equipment, spark plugs can be divided into many types, and the usage and life are also different. If the spark plug is not replaced for a long time, the car will shake, unable to speed up, or unable to catch fire, so the spark plug should be replaced in time.

Spark plugs are used in automobiles and motorcycles, and their main role is to ignite the engine to ignite the engine cylinders. The spark plug is always in working condition during the operation of the car, so it is an indispensable part of the fuel engine. The service life of spark plugs of different materials is also different, and the spark plugs on the market generally include the following:

1. The material of the resistance spark plug is very ordinary, generally used in low-end vehicles, and its electrode material is generally made of copper and nickel alloy, so the consumption is relatively fast when used, and it needs to be replaced frequently, and the service life of the resistance spark plug is generally about 20,000 kilometers.

2. The melting point and hardness of platinum spark plugs are higher than those of resistance spark plugs, which are characterized by long service life, good stability and durability in bad weather, and relatively stable sparks, with a service life of about 40,000 kilometers.

3. Iridium platinum spark plug Iridium platinum spark plug uses iridium for the central electrode, which improves the ignition sensitivity of the engine and improves the ignition performance, and the side electrode uses platinum material. Iridium platinum spark plugs have a much higher melting point than platinum spark plugs, and can maintain a stable ignition state well under the condition of continuous high-temperature operation of the engine, and the discharge performance is also very good. Iridium spark plugs are very hard and durable, with a service life of about 6.1 million kilometers.

Fourth, Iridium spark plug Iridium spark plug The overall material of the iridium spark plug is made of iridium, which is the best performance in the spark plug, this material is characterized by high hardness, high melting point, high corrosion resistance, and is the most wear-resistant material. It is more suitable for the use of high-power engines, and the electrodes are not easy to be damaged and melted in an ultra-high temperature environment, and the general service life can be as high as 680,000 kilometers.

The service life of the spark plug is different according to the different materials, the replacement time is also different, in addition to the impact on the service life of the spark plug are the use of inferior gasoline and other factors, the inferior gasoline has a high water content and is not completely combusted, and long-term use will make the surface of the spark plug wrapped with carbide, resulting in the inability to ignite and other situations. Therefore, in the daily use of the empty mold, it is necessary to pay attention to the oil quality and kilometers of the car, and replace the spark plug in time.

The spark plug is a major component in the ignition system of the automobile initiator, and the function of the spark plug is to introduce the high-voltage electricity generated by the pre-point coil into the initiator cylinder, and the spark between the spark plug electrodes ignites the mixture. The following are the situations that need to replace the spark plug: 1. Replace according to the number of kilometers of the car:

Regardless of the material of the spark plug, it can generally be replaced at 40,000 kilometers, and the gap of the spark plug at this time has become larger2. The car idles and shakes, and the spark plug is replaced: if the engine is shaking obviously, but it does not have much effect in the acceleration of the car, the Zen pin should suspect that it is the fault caused by the spark plug, and the problem can be solved after replacing the spark plug

3. The acceleration of the car is weak, the fuel consumption is large, and the spark plug is replaced: many faults will affect the power of the car, but the most basic thing is the ability of the spark plug to ignite, and the spark plug must have sufficient ignition energy when the throttle is high and the load is high. 4. The car can't be started, it is difficult to start, and the spark plug is replaced

If the spark plug model is wrong or the conductive electrode is seriously worn, the arrest collapse cannot provide enough energy at the moment of car starting, the mixture cannot be ignited, and the car cannot be started.

The situation that the spark plug needs to be replaced: when the engine is cold and hot, it is difficult to start, the idle speed is unstable, shaking, poor acceleration, insufficient power after landing, the idle speed is frequently turned off by itself, and the oil and gas consumption increases. The spark plug is commonly known as the nozzle, and its function is to send the pulse high-voltage electric discharge from the high-voltage wire (nozzle wire) to penetrate the air between the two electrodes of the spark plug and generate an electric spark to draw the mixed gas in the gas cylinder.

The main types of spark plugs are: quasi-type spark plugs, edge body protruding spark plugs, electrode type spark plugs, seat type spark plugs, polar type spark plugs, surface jump fire type spark plugs, etc. The spark plug works with the ignition system and the oil supply system to make the engine work, which largely determines the performance of the engine.