Maintenance and maintenance of automobile body, maintenance and maintenance of automobiles

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<> "Maintenance and maintenance of automobiles.

1) Prevent the mixture from being too thick because the temperature is high, the gasoline is easy to flow, and the gasoline flow is increased due to the expansion of the measuring hole, and the gasoline is easy to evaporate, resulting in the mixture being too thick. Therefore, the small amount hole should be adjusted, the position of the connection between the acceleration device and the throttle rocker arm should be adjusted, and the oil level height of the float chamber should be appropriately reduced to reduce the oil supply.

2) In the hot summer, the gasoline engine fuel system is prone to gas resistance due to the increase in temperature, resulting in insufficient oil supply or even interruption of oil supply. To prevent air blockage, you can use an asbestos pad to separate the petrol pump from the exhaust pipe, or wrap the petrol pump with a damp cloth to cool down.

3) Under the high temperature of anti-evaporation, the evaporation of oil and water will increase, the fuel tank cover should be tightly covered, and the oil pipe should be prevented from oil seepage. Always check the water level of the water tank, the oil level and height of the crankcase, the level of the brake fluid in the brake master cylinder, and the density and level of the electrolyte in the battery.

When it is not in accordance with the regulations, it should be added and adjusted in time. (4) In order to prevent the engine from overheating, it should be noted that the fan belt should not be stained with oil during maintenance, so as to prevent slipping, and the belt tightness is appropriate. Take a break during the drive, choose a cool place as much as possible when resting, and open the hood for ventilation and heat dissipation.

When the tire pressure increases due to heat, it should be stopped to cool down, and the tire pressure and temperature should not be reduced by deflating or pouring cold water.

5) The temperature of anti-spontaneous combustion and self-explosion is high in summer, and the daily maximum temperature is often above 35, which greatly increases the failure rate of the car itself.

When the temperature is high, the heat dissipation is slow, and the temperature of the automobile water tank often affects the power of the engine because of the high temperature, and may even cause mixed spontaneous combustion and self-explosion, so that the engine can not work normally. The high temperature also causes some parts to expand and deform, which will accelerate the wear of parts and burn out the parts in heavy cases.

In summer, the road surface temperature is often above 70. Because of the heat, the air pressure in the tire increases, and once it is driven for a long distance, it is easy to burst the tire. When the car breaks down in an instant, it can also lead to a traffic accident.

6) Poor anti-lubrication lubricating oil is easy to be thinned by heat, poor oxidation resistance, easy to deteriorate, and even cause failures such as burning tiles and holding shafts.

Therefore, the crankcase and gearbox should be replaced with summer lubricating oil, and the quantity and oil quality of the lubricating oil should be checked frequently, and replaced in time. (7) The car paint is like the skin on the human body, and it must be smooth and bright to be lovely. Although it seems to be lifeless, it is indeed afraid of the sun, and it will become old and wrinkled after long-term exposure.

Ordinary beauty protection car washing and waxing, although it has some effect on the ruler, will not have long-term benefits. Because any car wax contains silicone, long-term exposure to ultraviolet rays will rust the car paint, leaving a few dark spots.

Moreover, the abrasive particles in the car wax will also leave fine marks on the shiny car paint. The wax itself does not play a role in enhancing hardness and UV resistance, and will be lost quickly due to high temperature. Therefore, you should park your car in a shaded place when parking.

<> "Maintenance and maintenance of automobiles.

1. Due to the high temperature, the gasoline is easy to flow, and due to the expansion of the metering hole, the gasoline flow rate increases, and the gasoline is easy to evaporate, resulting in the mixture being too concentrated gas. Therefore, the small hole should be adjusted, the connection position between the acceleration device and the throttle rocker arm should be adjusted, and the oil level of the float chamber should be appropriately reduced to reduce the oil supply.

2. Prevent air lockingIn the hot summer, the fuel system of the gasoline engine is prone to air lock due to the increase in temperature, resulting in insufficient fuel supply or even interruption of oil supply. To prevent air resistance, the petrol pump can be separated from the exhaust pipe with an asbestos pad or wrapped in a damp cloth for cooling.

3. Anti-evaporationAt high temperatures, the evaporation of oil and water will increase. The fuel tank cap should be tightly covered, and the oil pipe should prevent oil leakage; Always check the water level of the water tank, the oil level and height of the crankcase, and the oil in the master cylinder. When the level height of brake fluid, the density of electrolyte and the liquid level height in the battery do not meet the requirements, they should be added and adjusted in time.

4. In order to prevent the engine from overheating, it should be noted that the fan belt should not be stained with oil during maintenance, so as to prevent slipping, and the belt should be tightened appropriately. During the driving process, you should take a break in a timely manner, try to choose a cool place when resting, and open the engine hood for ventilation and heat dissipation. When the air pressure of the tire rises due to heat, it should be stopped to cool down, and do not use the method of deflating or pouring cold water to reduce the tire pressure and temperature.

5. The temperature of anti-spontaneous combustion and self-explosion is high in summer, and the daily maximum temperature is often above 35, which greatly increases the failure rate of the car itself. When the temperature is high, the heat dissipation is slow, and the temperature of the car water tank often affects the power of the engine due to the high temperature, and may even lead to spontaneous combustion and self-explosion of the mixture, so that the engine cannot be started. to work properly.

High temperatures can also cause some components to expand and deform. The light ones will accelerate the wear and tear of the parts, and the heavy ones will burn out the parts. In summer, the road surface temperature is often above 70.

As the tires of the car are heated, the air pressure inside the tires increases, and once you drive a long distance, it is prone to punctures. When the car has the above faults instantaneously, it can also cause traffic accidents.

6. Lubricating oil with poor lubrication resistance is easy to be thinned by heat, and the anti-oxidation ant of the banquet group makes the performance worse, easy to deteriorate, and even causes failures such as burning tiles and shafts. Therefore, the crankcase and gearbox should be replaced with summer lubricating oil, and the quantity and quality of lubricating oil should be checked frequently and replaced in time.

<> "Maintenance and Maintenance of Cars.

Car maintenance and maintenance is a general term for car maintenance and repair. It is to investigate the faulty car through technical means, find out the cause of the failure, and take certain measures to eliminate the fault and restore it to a certain performance and safety standard. Car maintenance refers to the process of carrying out new maintenance and care for the car according to the maintenance conditions required by different materials of each part of the vehicle, using special care materials and products of different properties.

The daily maintenance of the car is carried out by the driver before leaving the car, during driving, and after collecting the car. You should look around the car to see if the lighting fixtures are damaged, whether the body is tilted, whether there are any leaks such as oil and water leaks, check the appearance of the tires, check the condition of the doors, engine compartment cover, box lid and glass.

Find the fixing of the accessories of each part of the engine, check whether there is oil and water leakage on the joint surface of the engine, check and adjust the tightness of the belt, check the fixing of the pipes and wires of each part, check the replenishment of oil, check the replenishment of coolant, check the replenishment of electrolyte, and clean all parts of the car. During the monthly car maintenance, the weekly car maintenance items should be repeated, but the inspection should be more detailed. Check the wear and tear of the tires, replace the tires when there are wear marks close to the tires, do not let the car become a mobile warehouse, clean the debris on the surface of the water tank, the surface of the oil radiator and the surface of the air conditioning radiator, clean the appearance of the car, remove the oil stains on the car body and repair the parts of the car body that have fallen off the paint.

Car maintenance is carried out every six months, and is generally arranged in spring and autumn. Clean the appearance of the engine, pay attention to the waterproof treatment of the electrical part when cleaning, avoid washing the engine with a high-pressure and high-temperature water gun, clean or replace the engine with a brush dipped in cleaning agent, clean or replace the engine three filters and oil, blow off the dust of the air filter with compressed air, replace the fuel filter and add the filter screen of the pipeline joint according to the situation, check whether there is corrosion in the battery binding post part, rinse the battery surface with hot water, and remove the corrosion on the battery binding post. Measure and adjust the electrolyte density of the battery.

Check the replenishment of coolant, clean the surface of the water tank, check the wear of the wheel fertilizer, and transposition the tires. Check the preload of the hub bearing, and if there is any clearance, adjust the shoe of the drum hand brake; Check the free stroke of the foot pedal; Check the wear of the wheel brake shoes, replace the brake shoes if the wear mark is reached, check and adjust the shoe clearance of the wheel brakes, and check the replenishment of brake fluid. Check the tightening of important bolts or nuts of the chassis, especially the important bolts and nuts of the steering system, and if loose or defective conditions are found, they should be tightened.

Check the tubing of each part of the chassis to see if there is any leakage, check the fastening of all metal connecting rods, and check whether the rubber bushing is damaged.