Maintenance and maintenance of automobile engine, maintenance method of automobile engine

1) Body beauty body beauty services include high-pressure car washing, removal of asphalt, tar and other dirt, waxing and brightening.

Mirror treatment, new car waxing, steel rims, tires, bumper refurbishment and chassis anti-corrosion gluing treatment, etc.

2) Interior beauty items can be divided into cabin beauty, engine beauty and trunk cleaning. Among them, the cabin beauty includes the vacuum cleaning protection of the instrument panel, headline, carpet, floor mat, seat, seat cover, and door interior, as well as steam sterilization, deodorization of air and heating outlets, indoor air purification and other items. Engine beauty includes engine flushing and cleaning, spraying varnishing protectant, doing refurbishment treatment, triple filter cleaning and other items.

3) Paint treatmentPaint treatment services can be divided into oxide film, flying paint, acid rain treatment, paint surface depth and scratch treatment, paint part of the plate damage treatment and vehicle painting.

4) Car protection: Car protection services include pasting explosion-proof solar film, installing anti-theft devices, electrostatic dischargers, car voice alarm devices, etc.

5) As an extension of the car beauty service, the car boutique can meet the needs of the driver and the occupants for the interior decoration and convenient services of the car, such as car perfume, wax duster, razor, goggles, foot pads, cushions, seat covers, handles, etc., which can make the car beauty service.

1. Preheating. When the engine starts cold, the lubricating oil such as parts will not be involved in the work quickly, but should be warmed up, so that the lubrication system of the engine can be fully lubricated before going on the road, which can effectively avoid the wear and tear of the engine parts.

2. Self-test. The running parts of any car have their own unique sound, the engine is no exception, when starting in a quiet state, the general engine sound will be dull and very regular, how the engine sound is more sharp or unstable, then it may be that your engine is faulty, to be sent to the 4S shop for maintenance in time.

3. Use. Each gear in the car has its own reasonable shift speed, generally speaking, to this gear should be shifted, (of course, except for special circumstances), if you always maintain a high speed driving, it is easy to cause the burden of the engine, not only will affect fuel economy, but also cause the loss of engine parts, generally common in novices, this point should be noted.

4. Maintenance. The engine is also very squeamish, we need to maintain it regularly, change the oil, keep the coolant clean, regularly clean the oil circuit and the oil intake channel, etc., don't think that my car doesn't matter as long as there is no problem, it is too late when there is really a problem, regular maintenance is not very expensive, but it is very necessary.

5. Come on. To protect the engine, we must not only have reasonable driving habits and maintenance habits, but also pay attention to whether the fuel is inferior. If the gap is large, there must be a problem with the oil, the wool is out of the sheep This truth is understood, and the inferior oil will cause insufficient gasoline combustion, so that the combustion chamber, fuel injector, air intake, etc. produce a large amount of carbon and colloid, which is easy to cause problems such as unstable engine idle and slow acceleration.

Extended information: The automobile engine is the device that provides power for the car, is the heart of the car, and determines the power, economy, stability and environmental protection of the car. According to different power**, automobile engines can be divided into diesel engines, gasoline engines, electric vehicle motors, and hybrids.

Common gasoline engines and diesel engines belong to reciprocating piston internal combustion engines, which convert the chemical energy of fuel into mechanical energy of piston movement and output power to the outside world. The gasoline engine has high speed, small quality, low noise, easy starting, and low manufacturing cost; The diesel engine has a large compression ratio, high thermal efficiency, and better economic performance and emission performance than the gasoline engine.

<> "Automobile Engine Maintenance Methods".

The engine of the car is the heart of the vehicle, protect the engine of the car, in order to make the car better serve you, the following share some ways to maintain the engine of the car.

1. Use the best engine oil.

Engine oil, that is, the lubricating oil of the engine, can lubricate, clean, cool, seal, reduce wear and other functions of the engine. Only the use of qualified lubricating oil can reduce the wear and tear of engine parts and prolong the service life.

Therefore, it is usually necessary to pay attention to the filling of high-quality engine oil, not shoddy, let alone let the engine be oiled.

2. Use qualified coolant (antifreeze).

It is important that the car engine needs to be cooled by the water tank, otherwise the engine is easy to "boil" and cause fatal damage to the engine.

Therefore, it is necessary to ensure that the coolant in the water tank is kept at a normal level, and to choose the best one, especially in winter, you should also know that the car should choose the appropriate coolant according to the ambient temperature.

In the normal maintenance program of the car, the engine antifreeze needs to be replaced every year of driving.

3. Clean the scale of the water tank regularly.

Rust and fouling of the engine water tank are easy problems. Rust and scale can restrict the flow of coolant through the cooling system, reduce heat dissipation, and cause engine overheating or even engine damage.

Therefore, in daily maintenance, it is necessary to choose the appropriate ratio of coolant according to the specific situation. In addition, when adding coolant, it is sufficient to reach the maximum and minimum values.

4. Regularly remove "carbon deposits" from cars.

In the process of burning oil, it is inevitable that there will be carbon deposition, and excessive carbon deposition will cause abnormal phenomena such as difficult starting, unstable idling, poor acceleration, urgent refueling and tempering, excessive exhaust gas, and increased fuel consumption.

There are many adverse effects on the engine, so it is necessary to pay attention to the prevention of carbon deposits, usually drive as much as possible at high speed, appropriately increase the speed when shifting, avoid long-term idling, use clean gasoline, etc., and maintain good driving habits to reduce carbon deposits. If there is a lot of carbon deposit, you need to go to a repair shop to remove the deposit.

5. Replace the "three filters" of the car on time.

The three filters are air filters, oil filters, and gasoline filters.

The three filters filter the air, oil and gasoline on the automobile engine, so as to protect the engine and improve the working efficiency of the engine.

Therefore, if you want to keep the engine in the best condition, you need to replace the filter element in time at the specified time, or if the filter element is dirty.

6. Maintain a reasonable speed.

In the normal driving of the car, a reasonable speed can make the engine run normally, but if it runs at a low speed or high speed for a long time, the engine will be overloaded, which is not only more fuel-efficient, but also easy to hurt the engine.

Therefore, when driving, the speed should be well matched with the gear, and the accelerator should be lightly stepped on, and the oil should not be stepped on violently.

The main reason for the formation of carbon deposits is insufficient combustion, which is related to driving habits, driving conditions, and fuel quality. Carbon deposits can form on valves, combustion chambers, pistons, injectors, and spark plug components. When the engine has a lot of carbon deposits, the engine will have the following symptoms:

Difficulties in cold starting, unstable idling, poor acceleration, rapid acceleration tempering or car breaking, excessive exhaust gas, increased gasoline fuel consumption, and increased oil consumption.

Effects of excessive carbon deposition in the combustion chamber:

1. The engine combustion chamber is the worst place in the working environment of the car, which is under high temperature and high pressure for a long time. Inevitably, carbon deposits also occur here, mainly from the pyrolysis of incompletely burned fuel. The carbon particles here are hard and pot-shaped, and in severe cases, they are honeycomb and have a certain thickness;

2. The carbon deposition here will affect the intake vortex, hinder the rate of flame propagation, and lead to a decrease in power, which will lead to engine knocking (commonly known as cylinder knocking), and even excessive pressure leading to combustion chamber breakdown;

3. Slight carbon deposition does not matter much, but carbon deposition in the combustion chamber is an accumulation process from slow to fast, so daily cleaning is very important.

4. It is difficult to start the vehicle in winter, and the engine shakes after starting, and even causes the engine not to start; There will be a lack of acceleration of the vehicle; Idle shaking of hot cars; the phenomenon of increased oil consumption; Every carbon deposit inside the engine will have a bad impact on the normal operation of the engine, and in severe cases, it will cause irreversible damage to the engine piston.

The commonly used methods are: dismantling and washing, hanging bottle cleaning, and fuel additives.

1. Dismantle and wash. This method is very direct and rude, but it is generally sent to the 4S store for disassembly, the disassembly of the engine is more complicated, no matter what parts will affect its performance more or less every time it is disassembled, you need to ask a professional master to disassemble. The carbon deposits in the engine can be seen directly when dismantled and washed, and the cleaning will be relatively clean.

However, the cost will be relatively high, and it will also require technology.

2. Hanging bottle cleaning.

This method is also relatively common, the hanging bottle is to discharge the cleaning agent into the air intake, dilute and soften the carbon deposit to turn it into a slurry, and then burn it from the cylinder to discharge. Generally, the cleaning objects include the intake tract, throttle, intake valve, fuel injector, cylinder inside, etc., but the effect is not as direct and obvious as dismantling and washing.

3. Fuel additives.

One of the causes of carbon deposition is that the fuel burns insufficiently, which adheres to various parts of the engine and forms carbon deposits over time. The main function of additives is to drill into the pores of carbon deposits with the help of strong surface activity, destroy their structure, and gradually dissolve these carbon particles from the metal surface, and then discharge them through exhaust gas after burning with fuel at high temperatures. Effective fuel additives such as PNF stock solution is not corrosive, can clean the whole oil circuit, fuel tank impurities, fuel tank moisture, high-pressure oil pump, built-in gasoline filter, fuel injector, piston top, intake valve, exhaust valve, long-term use has a good cleaning effect on the ternary catalysis, will not block the ternary, the safety is relatively high.

<> "Due to the complex environment of the car, the engine has to continuously dissipate heat outward, and the sealing problem of the engine room has not been fundamentally solved, resulting in the wind, sand and dust rolled up by the car during the driving process from the lower part of the engine room drilled into and flew on the surface of the engine, coupled with the engine working at high temperature for a long time, sometimes there are oil leakage and other phenomena, which accelerate the corrosion of the engine and affect the normal performance of its performance. Therefore, it is of great significance to strengthen the maintenance of the engine.

1.The engine of the chemical vehicle should use the appropriate quality grade of lubricating oil. The selection criteria are not lower than the manufacturer's requirements, and of course the higher the better, and the right oil type is the most important.

2.Change the oil and filter regularly. Different grades of lubricating oil will change the oil quality during use.

After a certain mileage, the performance deteriorates, which will bring various problems to the engine of the chemical liquid transport vehicle. In order to avoid the occurrence of these failures, the car should be regularly changed in combination with the use of conditions, and the oil volume should be moderate, generally between the upper and lower limits of the oil scale.

3.Keep the crankcase well ventilated. At present, some gasoline engines are equipped with PCV valves (crankcase forced ventilation devices), but the pollutants in the blow-by gas will be deposited around the PCV valves, which may clog the valves.

If the PCV valve is blocked, the polluting gas will flow to the air filter in reverse, pollute the filter element, reduce the filtration capacity, and the inhaled mixture will be too dirty, which will cause more pollution of the crankcase, resulting in increased fuel consumption, increased engine wear, and even damage to the engine. Therefore, contaminants must be removed regularly from around the PCV valve.

4.Clean the crankcase regularly. During the operation of the engine, sludge will be formed due to various changes.

A small amount of sludge can be suspended in the oil, and when the equivalent amount is large, it can be precipitated from the oil, clogging the filter and oil holes, causing difficulty in engine lubrication, thereby aggravating the wear of the engine. Therefore, we need to regularly clean the crankcase to the 4S shop to keep the internal engine clean, so it has more space to better play its performance and make the shouting branch car run more smoothly.

5.Clean the fuel system regularly. The fuel inevitably has the intervention of impurities in the process of transportation, and the fuel will inevitably form gum and carbon deposits in the process of feeding to the combustion chamber through the oil circuit, which will make the fuel atomized poorly, resulting in engine wheezing, detonation, unstable idling, poor acceleration and other performance problems.

6.Maintain the tank regularly. Rust and scaling of the engine water tank are common problems.

Rust and scale will restrict the flow of coolant in the cooling system, reducing the cooling effect, causing the engine to overheat and even cause engine damage. Therefore, it is necessary to check the water tank regularly to remove rust and dirt.

In addition to the daily maintenance of the relevant information system of the engine, the cleaning of the engine technology itself also needs to be done well, which can not only keep the engine clean and tidy, but also extend the life of the engine network by reducing rust and other phenomena, and also has an important impact on car maintenance.