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• 2024-12-24 02:24:28 Industry-level trade feasibility studiesIndustry-level trade feasibility studiesStep 1: Visit official website First, Industry-level trade feasibility studiesopen your browser and enter the official website address (spins98.com) of . Industry-level trade feasibility studiesYou can search through a search engine or enter the URL directly to access it.Step *List of contents of this article:1, What is the law and cause of the wear of the cylinder block of
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• What will happen if the plane of the car cylinder head is polished too much?
• 4, Fault diagnosis and elimination of cylinder wear

What is the law and cause of the wear of the cylinder block of the automobile engine?

If the car engine is used for a long time, there will be failures such as burning oil, lower exhaust, power drop, etc. In this case, the engine generally needs to be overhauled.

The degree of wear of the cylinder has the greatest impact on the power of the car. The wear of the cylinder makes it cooperate with the piston and the piston ring, and the gap increases, which reduces the pressure when the cylinder is compressed, resulting in a decrease in engine power.

The main reason why the normal wear cylinder grinds into a large upper and small lower: the upper working temperature is the highest, the oil film is not easy to form, and the upper lubrication is the worst.The main reason for uneven radial wear of the cylinder: the blowing and flushing effects of the intake air cause the lubricating oil of the cylinder wall to be diluted and form more corrosive components.

2 Corrosion and wear: organic acids and acidic oxides produced by mixed gas combustion (dissolved in water to produce mineral acids). It corrosively affects the surface of the cylinder, causing corrosion and wear. The upper part of the cylinder block cannot be completely covered by the lubricating oil film, and the corrosion effect is more serious.

Generally speaking, the front and rear cylinders of the engine are the most seriously worn. This is caused by the greater cooling intensity of the front and rear cylinders of the engine, and the cylinder is not easy to reach the normal working temperature.

What will happen if the plane of the cylinder head of the car is polished too much?

If the plane of the cylinder head of the car is polished too much, it will affect the distance between the top of the piston and the valve (that is, the volume of the combustion chamber decreases), and the compression ratio of the engine will increase, causing the engine to work roughly; at the same time, the valve also has a risk of the top piston. .

Hello, it can't exceed the limit value. Usually, it can be ground once, and it can't be processed many times.

Hello, engine cylinder head flat grindingMore will affect the distance between the top of the piston and the valve (i.e. the decrease in the volume of the combustion chamber), and the engine compression ratio will increase, causing the engine to work roughly; at the same time, the valve also has a risk at the top of the piston. For cylinder head processing, if there are limit requirements, you can refer to the vehicle maintenance manual.

If it's too much. It will lead to an increase in the compression ratio. The engine is prone to explosion. As a result, the ignition is delayed in advance.

After the cylinder head is ground, the volume of the combustion chamber will be reduced, causing the compression ratio to exceed the original design value, which may cause the engine temperature to be too high. As long as the engine can run normally, there is no problem. It is best to test the cylinder pressure, which may be higher than the design requirements.

The cylinder head is flattened to seal the cylinder without air leakage, so that the compressed mixed gas combustion pushes the piston to work.As long as it is ensured that the waterway inside is not blocked or the water is blocked when grinding, it affects the water circulation (it will be checked before installation), and there is no effect on the water temperature of the engine.

What will happen if the plane of the car cylinder head is polished too much?

Excessive grinding of the plane of the car cylinder head will affect the distance between the piston top and the valve (i.e. the decrease in the volume of the combustion chamber), and the engine compression ratio will increase, resulting in rough operation of the engine; at the same time, the valve is also in danger of the piston.

If it's too much. It will lead to an increase in the compression ratio. The engine is prone to explosion. As a result, the ignition is delayed in advance.

Hello, the plane grinding of the engine cylinder head will affect the distance between the top of the piston and the valve (that is, the volume of the combustion chamber decreases), and the compression ratio of the engine increases, causing the engine to work rough;At the same time, the valve also has a split risk at the top of the piston. For cylinder head processing, if there are limit requirements, you can refer to the vehicle maintenance manual.

Hello, it can't exceed the limit value. Usually, it can be ground once, and it can't be processed many times.

The cylinder head is flattened to seal the cylinder without air leakage, so that the compressed mixed gas combustion pushes the piston to work. As long as it is ensured that the waterway inside is not blocked or the water is blocked when grinding, it affects the water circulation (it will be checked before installation), and there is no effect on the water temperature of the engine.

Fault diagnosis and elimination of cylinder wear

4 Engine power declines. 5 Increase in fuel consumption. Fault diagnosis and elimination of cylinder wear, the law of cylinder wear and its causes (1) The law of cylinder wear From the longitudinal cross-section of the cylinder (along the direction of the cylinder axis): irregular "cone" or "cone" with large and small bottom.

The dust in the air is sucked into the upper part of the cylinder, and its edges are sharp, so the upper part of the cylinder wears the most. Waist reason: In areas with severe wind and sand, after a large amount of dust enters the cylinder, because the piston moves the fastest in the middle of the cylinder, the grinding grain wear is the most serious. The diagnostic method of cylinder wear fault Check the pressure of the faulty cylinder.

1 There is an obvious clicking sound when starting cold. The temperature rises, and the sound weakens or disappears. 2 cylinders low pressure. 3 Sometimes the exhaust pipe discharges blue smoke, and blue smoke comes out of the oil outlet. 4 The power of the engine decreases. 5 Increase in fuel consumption.

Fault diagnosis and elimination of cylinder wear The law of cylinder wearIts causes (1) The law of cylinder wear From the longitudinal cross-section of the cylinder (along the direction of the cylinder axis): irregular "cone" or "cone" with large and small bottom.

Cylinder failure and solutions are as follows: the piston rod is installed eccentricly and the center of the piston rod can be readjusted; when the sealing ring and the sealing ring are worn or the ring is damaged, they must be replaced in time; the poor cushioning effect of the cylinder is generally caused by the wear of the buffer seal or the damage of the adjustment screw.

List of contents of this article:

• 1,Industry-level trade feasibility studies What is the law and cause of the wear of the cylinder block of the automobile engine?
• 2, What will happen if the plane of the car cylinder head is too much
• 3 、
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