Engine is the heart of the car, the engine broke down once, and tends to move the car. The efficiency of the whole car, power performance, emissions, environmental protection, etc. All related to the operation of the engine. Therefore, to maintain good engine is the most important task of maintenance of car.
Automobile production enterprises are generally opposed to the user's own disassembly and repair, emphasize users send repair station to repair. The user needs to do is to use the operating correctly and timely maintenance, often called "seven FenYang, three points", the maintenance to a strategic height to treat. Hubei force special purpose vehicle manufacturing co., LTD., through many years' accumulation of long experience, summed up a set of, the car engine maintenance method, hoping to help the masses of users.
A, good driving skills and careful observation
1. Avoid low-lying water surface
After the heavy rain the road often have water, then do not drive hard rushed over, lest cause serious damage to the engine. Because once inhaled water engine, the combustion chamber is filled with water, the high-speed rotation of the crankshaft link mechanism hard washed up, and the water is incompressible, great inertia force tend to be the top of connecting rod. Cold water also easy to cause high temperature of the cylinder body suddenly cylinder body cracking, and electric control part of the computer control of efi engine if ooze water will form a short circuit, components and even computer damage, heavy losses. So, in case of rain, advise you still sit to wait, it's best to move the car to higher ground, such as water back to walk again. Don't want to get out of the water rushed over.
2. Lack of fuel to add in a timely manner
Have an electric fuel pump inside the fuel tank is responsible for the fuel to the engine. Motor work when fever, when it sank in fuel, heat will be around the fuel oil cooling, can run for a long period of time. But when a serious shortage of fuel oil tank, oil pump when it is exposed to the air, the motor temperature rise gradually, is easy to motor burn out. So when the fuel gauge pointer to warning zone will add fuel in a timely manner.
3. The starter cannot be used frequently in the short term
Sometimes, the engine doesn't work for some reason, the driver will usually frequent starting. Actually consumed power of starter is very big, generally to hundreds of watts, serious drain of battery energy reserves. Engine can't fire, there is no power supplement, battery is easily damaged. So in a few times when you can't start the engine, ignition is to check the reason first, eliminate the fault, and then start again.
Second, the active maintenance habit to choose suitable lubricating oil
1. Know more about car performance for maintenance on their own
Men spare time to enjoy their repair or modified cars. , of course, also have a few small creation and invention, convenient to buy spare parts anyway. DIY computer design or create some electronic products, like DIY fashion in fashion now. Boys stealing at age 13, four driving, with the father's garage, the legal age, driving is rushing about, structure, performance already know about cars.
2. Check the oil, add, and change.
Oil has special importance to the engine, because the engine speed on the car has reached 6, seven thousand revolutions per minute, turn on the car even reached tens of thousands of. Piston movement's linear velocity to dozens of meters high, and it is under the high temperature and high pressure. If there is no appropriate to the advanced oil as a lubricant, the engine will be damaged soon. Because can have part of the volatile oil at high temperature, so often by oil gauge check oil, is insufficient to add in a timely manner. But that should be paid attention to the new added oil must be the same type. Otherwise, the two kinds of chemical composition of different oil mixed, it will produce chemical reaction, make the oil performance go bad. Choose what size of the oil, depending on the local temperature conditions. When the engine at high speed, often there will be some metal dust and impurities, oil use for a long time will be bad, so, it is necessary to change in time. All kinds of automobile engine oil replacement are specified by time, is generally from 1000 to 1500 kilometers of the period, and after each operation from 5000 to 8000 km. In daily check, if it is found that the oil becomes thick, black, explain the oil has been bad, also need to be replaced in a timely manner. In the large temperature difference areas, summer and winter approaching, the corresponding brand of oil needs to be replaced.
Third, attaches great importance to the fuel system maintenance
1. Try to use reliable quality fuel oil, add fuel additives when necessary
This is particularly important for efi engine. This is because the efi temperatures may reach above 200 degrees within the tao, the fuel injection nozzle, valve stem, and above the inlet valve is easily formed coke and colloid, lead to valve closed lax, cylinder pressure drop, cause valve cold adhesion, oil nozzle blockage. Fuel oil contains antiknock additive, antiwear agent, accelerant, clean dispersant, etc., it can effectively remove the carbon deposit in fuel system and colloid, improve fuel combustion rate, reduce exhaust pollution, etc. If it's just in the big cities use premium gasoline, natural problem is not too big. But if you move the car to the medium and small towns, the best combined with a bottle of reliable fuel additive as appropriate.
2. Regular cleaning oil system, it is best to use free disassembly fuel cleaning method.
Despite the many kinds of car fuel additives, but still can produce coke and colloid, as a result, each run after 20000 to 25000 kilometers, the oil system must be thoroughly clean again. Now more formal garage are equipped with putting fuel cleaning equipment. It is very simple, with oil on it, input a specific chemical cleaning agents, the engine idle speed for a period of time, cleaning agent can will soften carbon deposit, decomposition, dissolved colloid and oil emulsification, and after burning, discharge outside. It is reported that the mainland has an auto repair shop in this way to clean the 50 auto engine made significant effect, make the engine power output increased by 26.37% on average, 11.20% more fuel-efficient, CO emissions fell by 63.40%, HC emissions fell by 59%, the effect is significant.
Fourth, clean the engine assembly
1. Regularly clean the air filter element, the two may also replace a /
Every one thousand km or so, it is best to air cleaner filter removed, from inside to outside of the compressed air blowing clean the dust and dirt. Some dust in the air at the entrance to a integrated cup, also want to check, will the dust out. / refers to: fuel, oil and air filter, the three and oil filter is generally has two, coarse and fine filter car second danger should be replaced. Different regions, different road conditions, cleaning and replacement time is also different.
2. Check and added coolant
Liquid storage tank of the cooling liquid level, such as less than the minimum scale line will be added with varieties of coolant, when necessary, can be substituted for distilled water. Should pay attention to, must wait after temperature down to open the cover, or hot water scald people extremely easy.
3. Adjust the valve clearance
The car after a period of time can sometimes hear the sound of the engine with "click, click", this is often between valve and valve tappet clearance, clearance can be adjusted. However, modern new car engine has been in use for hydraulic tappet, it can automatically eliminate clearance, too.
4. Check and clean platinum contact
Platinum contact point on the distributor to use after a period of time will be ablation above, will cause the loss of resistance increase, spark plug ignition energy, reduce engine power output, etc., this is about to the oxide layer with fine sand paper burnish drops slightly. But must pay attention to the contact area of not less than 80%, more than to be replaced.
5. The spark plug to check
If it is found that the engine power, may be one of the reasons is the spark plug to repair. First check the spark plug ceramic presence of fracture, if have broken will change in time. Second, check the spark plug gap between the two electrodes whether reasonable, generally keep between 0.4 to 0.6 mm (tend to have a different type of clearance differences), check the gap size is best with a feeler gauge, but can also use the visual experience, or remove the compares near the spark plug. Electrode should be kept clean, clean up the carbon deposit and oxide layer.
6. Check the belt
Firmness to satisfy the requirements of the directions, such as cracking, delaminating, etc will change in time.
7. Keep ventilation vent valve
On engine, gearbox and other assembly have breather valve, easy to heat the oil and gas emission. Always remove dirt, dust, keep ventilation. Should have on car to pay attention to the valve cover cap, not the water went in.