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  、Global supplier scorecard templatesGlobal supplier scorecard templatesrunning' title='car line What's wrong with the engine knocking on the cylinder when driving'>What's wrong with the engine knocking on the cylinder when the car is driving
• 5,What is the sound of the engine knocking on the cylinder
• 6, What is the sound of engine knocking on the cylinder, engine knocking on the cylinder sound video

Mitsubishi Wing God engine The sound of knocking on the cylinder

What do you want to ask is the reason for the knocking sound of the Mitsubishi Wing God 8 engine? The reason is that the piston knocks on the cylinder wall and hammers the connecting rod. The piston knocks on the cylinder wall:This is because the gap between the piston and the cylinder wall is too large, causing the piston to collide with the cylinder wall when working, producing a knocking sound.

There are eight reasons for the engine burst: excessive carbon accumulation in the engine causes the engine compression ratio to increase and burst, the pressure in the cylinder rises, and the carbon accumulation is cleaned up. If the engine connecting rod is bent or deformed, please replace the engine connecting rod in time.

The sound of knocking on the cylinder is da-da, which is not obvious if you don't listen carefully. Knocking the cylinder is caused by the wear of the cylinder and the largening of the cylinder diameter, or it may also be caused by the explosion. Explosion is an abnormal combustion phenomenon in the engine, and explosion occurs in the compression stroke. When the engine is in compression stroke, the intake valve and exhaust valve will be closed.

The reason for knocking on the cylinder when the car starts: generally caused by the following situations: premature ignition time.The shock sensor is defective. The EGR system is bad.

What is the reason for the strange knocking sound of the car engine?

1. Oil lubrication is interrupted or insufficient; connecting rod bearing cover bolts are loose; the bearing and shaft diameter are too worn; the matching gap is too large;Bearing alloy welding and shedding, etc. The sound of knocking. The knocking sound of the engine is mostly caused by the abnormality of the mechanical part of the engine, which is a relatively serious abnormal sound.

2. Secondly, if there is a metal knocking sound, there may be the following four reasons, namely, the engine knocking sound, low fuel marking or poor oil quality, excessive engine ignition angle, and excessive carbon accumulation inside the engine. Third, if it is a squeaking sound, it is possible that the belt of the engine has a strange sound, or it may be that the belt is aging or too loose or too tight.

3. Crankshaft failure The crankshaft is one of the most important parts inside the engine, which is responsible for turning the piston and connecting rod. If there is a problem with the crankshaft, such as cracks or wear, it will cause abnormal noise in the engine. At this time, the crankshaft needs to be replaced. Rocker arm failure The rocker arm is a component that connects the valve to the camshaft.

4. Insufficient engine cylinder. When the engine lacks a cylinder, there will be problems such as loud engine noise, unstable idle speed, and abnormal body shaking. In this case, the condition of the cylinder and the working condition of the spark plug should be checked.

5. The first type: Phenomenon: The sound of "squeaking" in the engine compartment usually occurs in the cold start of the vehicle, the uphill section and the load, and it occurs intermittently, and the duration of the sound is not long. This may be caused by the aging of the engine's transmission belt, insufficient tension or edge wear. It is necessary to check the engine transmission parts to troubleshoot.

What is the sound of knocking on the cylinder?

The sound of the engine knocking on the cylinder is a crisp and rhythmic metal knocking sound, which will change with the temperature.Cylinder explosion is an abnormal phenomenon. After this problem occurs, the cause should be checked immediately and then repaired.

The sound of knocking on the cylinder is da-da, which is not obvious if you don't listen carefully. Knocking the cylinder is caused by the wear of the cylinder and the largening of the cylinder diameter, or it may also be caused by the explosion. Explosion is an abnormal combustion phenomenon in the engine, and explosion occurs in the compression stroke. When the engine is in compression stroke, the intake valve and exhaust valve will be closed.

The sound of the engine knocking on the cylinder is a crisp and rhythmic metal knocking sound, and this sound will change with the temperature. Knocking on the cylinder is an abnormal phenomenon. After this problem occurs, the cause should be checked immediately and then repaired.

What's wrong with the engine knocking on the cylinder when the car is running

The ignition time is too early. The shock sensor is defective. The EGR system is bad. The spark plug model is wrong or the gap is too large. The firing value of the gasoline used is too low, the combustion chamber is seriously carbonated and the engine temperature is too high, the gap between the piston and the cylinder wall is too large, and the lubrication conditions of the cylinder wall are poor.

The cylinder wall is poorly lubricated. The lubrication condition is poor, the oil pressure is low or the oil viscosity is too low, the cylinder wall splashes and lubricates poorly, a normal lubricating oil film cannot be formed between the piston and the cylinder wall, and the piston and the cylinder directly touches the cylinder.

Cylinder knocking is caused by the wear of the cylinder block and the piston, and the gap between them is widening. Especially when the piston skirt is worn, the knocking sound will be obvious. In general, the sound will also increase when the engine is cooled or the load is large.

Generally speaking, there is a possibility: the octane number of the selected gasoline is too low and the mark is insufficient. The octane number of domestic gasoline is generally lower than the standard. For example, your car is marked above No. 92, then, due to the insufficient octane number of domestic gasoline, the octane number of 92 may be only 90, and the mark is insufficient, of course Explosion.

What is the sound of the engine knocking on the cylinder

1. The sound of knocking on the cylinder is loud, which is not obvious if you don't listen carefully. Knocking the cylinder is caused by the wear of the cylinder and the largening of the cylinder diameter, or it may also be caused by the explosion. Explosion is an abnormal combustion phenomenon in the engine, and explosion occurs in the compression stroke. When the engine is in compression stroke, the intake valve and exhaust valve will be closed.

2. The sound of knocking on the cylinder will be more obvious, and when the engine temperature is high, the sound will be weakened. The sound of knocking on the cylinder is a crisp and rhythmic metal knocking sound. When the engine temperature is lower, the sound of knocking on the cylinder will be more obvious, and when the engine temperature is high, the sound will be weaker.

3. Knocking the cylinder is caused by the wear of the cylinder block and the piston, and the gap between them is enlarged. Especially when the piston skirt is worn, the knocking sound will be very obvious. Under normal circumstances, the sound will also increase when the engine is cold or the load is large, and the main reason for the valve sound is that the engine valve mechanism There is a gap between the cooperation.

What is the sound of the engine knocking on the cylinder, the engineThe sound video of knocking on the cylinder

1. The sound of knocking on the cylinder is loud, which is not obvious if you don't listen carefully. Knocking the cylinder is caused by the wear of the cylinder and the largening of the cylinder diameter, or it may also be caused by the explosion. Explosion is an abnormal combustion phenomenon in the engine, and explosion occurs in the compression stroke. When the engine is in compression stroke, the intake valve and exhaust valve will be closed.

2. The sound of the engine knocking on the cylinder is a crisp and rhythmic metal knocking sound, which will change with the temperature. Cylinder explosion is an abnormal phenomenon. After this problem occurs, the cause should be checked immediately and then repaired.

3. The sound of the engine knocking on the cylinder is a crisp and rhythmic metal knocking sound, and this sound will change with the change of temperature. Knocking on the cylinder is an abnormal phenomenon. After this problem occurs, the cause should be checked immediately and then repaired.

4. The sound of knocking on the cylinder is Dada, and it is not obvious if you don't listen carefully. Knocking the cylinder is caused by the largening of the diameter of the cylinder wear or the explosion. Explosion is an abnormal combustion phenomenon in the engine, and explosion occurs in the compression stroke. When the engine is in compression stroke, the intake valve and exhaust valve will be closed. The compressed combustible mixed combustion mixture will run upwards.