Friday, May 23, 2014

Automotive maintenance and repair to make their car from harm

The so-called vehicle maintenance means to maintain and restore the technical performance of the car, to ensure that the car has good usability and reliability. Timely and correct maintenance will extend the life of the car, improving safety performance, save money and save a lot of repair troubles. However, nowadays the "repair on behalf of Paul," the driver of the team concept still exists, due to lack of maintenance or improper maintenance caused by traffic accidents occurred frequently. Therefore, timely and proper vehicle maintenance is to extend the life of the car, reduce the price to ensure traffic safety an important part of General Timothy car insurance belongs before the first run-in period, during which do not let the engine speed is above 2,500 rpm. Run-in is to allow sufficient friction between the engine block and pistons, piston period in the run-walls have a lot of small metal debris, and if so the engine speed operation would generate enormous friction piston and cylinder, piston serious damage in the second period wall. It is recommended that everyone in front of the first insurance note the following: (1) the engine speed is maintained at less than 2500 rpm shift; (2) Do not jerk emergency start; had a run-in period may be appropriate in 3000 to about 4000 rpm shift, Meanwhile to the highway should pull in added 5 block, slowly throttle in the end, to reach the top speed (about 140 ~ 150km / S) after releasing the accelerator, allow the car to slow down slowly, all this running-in process end of the normal on the road! After a run-in period we try not to be less than 2500 conversion gear! Do not neutral slide! Otherwise it will shorten the life of the throttle! There is a car clutch pedal, and other vehicles lit, then release the pedal, thus reducing wear and tear. (2) periodic testing note: car break-in period in 3000 to 4000 km, over 3500 km free maintenance can be carried out for the first time. After pulling speed. 5000 km 1 for a air filter (you can also use the pump to blow a blow) 2. If the general oil, replace the oil and oil filter. Oil can be used as good a change every 7,000 km. To 10,000 km 1. For a air filter 2. If the general oil, oil and oil filter should be replaced. 3 Check the engine oil pan gasket to 15,000 km 1 for a air filter (you can also use the pump to blow a blow) 2. If the general oil, replace the oil and oil filter. 3 Check the brake fluid and antifreeze are boosting oil deficit. 4 Replace the fuel filter to 20,000 km 1. Before swap tires and wheel alignment and tire balancing 2 check and replace brake pads) 3 for a air filter 5. If the general oil, replace the oil and oil filter. 6 Check the engine oil pan gasket to 250,001. Cleaning inlet, idling motor and nozzle 2 for a air filter (you can also use the pump to blow a blow)
3 If using general oil, oil and oil filter should be replaced. To 30,000 km 1. 2 for a air filter Replace fuel filter 3. If the general oil, replace the oil and oil filter. 4 tire balancing 5. Check engine oil pan gasket to 35,000 km 1 for a air filter 2. If the general oil, replace the oil and oil filter. To 40,000 km 1. Swap tires front and rear and wheel alignment and tire balancing 2 check and replace brake pads 3 for a air filter 4. Replace the fuel filter 5. If the general oil, replace the oil and oil filter. 6 Check the engine oil pan gasket to 45,000 km 1 for a air filter 2. If the general oil, replace the oil and oil filter. 3 Check whether the deficit level 4 Clean intake to 50,000 km 1. Cleaning nozzle inlet and 2 for a air filter 3. Replace the fuel filter 4. General if oil should Replace the oil and oil filter. 5 tire balancing 6 Check engine oil pan gasket to 55,000 km 1 for a air filter 2. If the general oil, replace the oil and oil filter. 3 Replace the generator accessory belt tensioner pulley and 4. Checking whether the steering oil seal leakage 5. Replace the antifreeze 6 replace the brake booster oil and oil transmission oil (if you do not care, it can wait pulls 60000) 7. Replace the spark plug to 60,000 km 1. replace the timing belt, tensioner and idler 2. replacement tires and tire balancing 3 check and replace brake pads 4 for a air filter 5. Replace the fuel filter 6. If Average oil, oil and oil filter should be replaced.
7 Replace the brake fluid power oil and gearbox oil (check, if necessary and back) 8. Check the spark plug if there is carbon 9. Replace antifreeze an engine oil filter machine machine, is the heart of the car, the vehicle output steady flow power. How could it have maintained a timeless state, and even play a stronger effect it? How is the car hit a dose effective "booster" has become an issue of concern to many owners. Some experts said the vehicle "Strong Heart" the best from the "run" began, however, an important factor in the life of the engine driving habits are also affected. Maintenance and use of the engine, the most notable problem is that the run-use, which for longer engine life has a very crucial role. First, do not use warm up the engine idling. EFI engine now has a temperature-compensated control system to meet the vehicle under normal driving in cold conditions. If EFI engine with a long warm-up, only in potentially increasing fuel consumption. Secondly, in the high speed driving of the engine not running. The early stages of the new car has a speed of driving regulations, general provisions within 60-150 km / h. In general, the run-in period should be strict rules engine speed between 2000-4000 rev / min. Third, to avoid overloading the engine. Car full load operation is likely to cause mechanical damage, so the run-in period should not exceed 75% -80% of the rated load. These aspects for Novice, are problems that need attention. Fourth, in the run-in period should always check the engine oil, coolant, battery, power steering fluid, brake fluid adequacy must be found to lack replenish. Generally speaking, running to 3,500 kilometers to be replaced once the oil. Engine oil has a cooling, lubrication, cleaning, sealing four major functions, which work to ensure that the engine normally play a crucial role. When the engine, the internal operating conditions are very severe and demanding, high-speed and high-temperature heat at no specification changes, the mechanical friction of metal debris, dust intrusion from the air, the combustion acids, some of the incomplete combustion of fuel mixed with oil, so the oil viscosity reduction; combustion exhaust gas into the crankcase section and into the anhydride component so that oil deterioration, it can not achieve the desired functionality, it will affect the efficiency of the engine and life. It is in motion after a certain mileage, oil must be replaced. Meanwhile, since the oil accumulated in the filter more various impurities, the filter cleaning performance will decline, so the filter must be periodically replaced with the same oil. With increasing engine working time, engine oil due to high temperature oxidation, mechanical parts subject to wear, corrosion and other factors fuel vapor contaminated. Change the oil and filter regularly for any changes in the quality level of oil in the course of CNPC quality will be. After a certain mileage, performance deterioration, the engine will bring all sorts of problems. In order to avoid the occurrence of failure, should be combined with a regular oil change conditions of use, and to moderate oil (generally dipstick cap as well). When the oil filter from the oil through the pores of the solid particles accumulate in the filter and the viscous material. Such as filter plugging, oil filter when you can not, it will burst open the safety valve or filter, from the by-pass valve, still the dirt back lubrication, engine wear will lead to internal contamination intensified. Further, in normal use the engine oil also has a certain consumption. So we have to regularly check the oil level and extent of contamination, which is the reason we have to regularly replace oil. If the oil is below the specified value and affect the work of the engine, then the engine will cause fatal injuries. Oil consumption causes and how to avoid the terrible consequences of their cause. Under normal circumstances, the oil will be consumed absolutely no sense from a fundamental engine oil consumption does not exist. For the following reasons: 1, oil used to lubricate pistons, piston rings and cylinder when the piston moves downward, will leave a layer of film on the cylinder wall. When the vehicle decelerates, the high negative pressure generated in some of this oil into the combustion chamber, the oil and the oil film left on the cylinder wall portion, as in the high temperature combustion process is the combustion of the combustion gases. 2, oil is used to lubricate the intake valve stem, the combustion chamber is sucked. High-temperature exhaust gas will also burn the oil used to lubricate the exhaust valve. The following factors affect the oil consumption: 1, oil viscosity: the lower the viscosity of the oil, the sealing effect is worse, the more the amount of the combustion chamber is sucked. 2, the driving conditions of the vehicle: a high-speed and frequent acceleration and deceleration, the increase of oil consumption.
3, high speed process, diluting the ingredients will evaporate, so after a high-speed over-consumption of oil will be found. After long-running engine, oil will gradually degenerate form of oil masonry, and in severe engine lubrication channels blocked so that the internal components are not lubricated, causing the engine to pull the engine cylinders and carbon soot in the engine within two Burnt axle problem is an inevitable and difficult event to face. Failure cold start performance is sometimes difficult to not start several successful ignition, the engine feels like a big problem, like, but once started successfully, after the engine temperature rises again to restart the engine will become very easy. When the engine is running idle instability compare jitter, or even the status of a cylinder does not appear to work, but also after the engine water temperature tends to become relatively stable. Increased fuel consumption emissions worse. Troubleshooting process starter to start the system integrity check, adequate battery power, the power to exclude the possibility can not be due to lack of normal start. Check the ignition coil ignition system properly, ignition resistance value is within the normal range, no spark plugs ablation damage phenomenon. Automotive fault diagnostic checks fault recording only sporadic engine failure records. Check the cylinder pressure if carbon serious cases may have encountered a cylinder valve not closed properly, the cylinder pressure is too low. Check the fuel pump fuel supply system is normal, normal spray nozzle, but the surface of injector coking phenomenon. Models and failure: a Buick CENTURY (Century) sedans, equipped with V6 engines, underpowered when driving, poor acceleration. Check the engine idling serious shake, intake manifold tempering hard acceleration. Troubleshooting and exclusion: First clean the air filter, spark plugs and fuel filter replacement, but the fault remains. And using cleaner fuel injection system, fed to the intake manifold with special equipment, start the engine, the fuel injection apparatus for automatic cleaning, is not working. Remove the injector, using special equipment to clean not work. Then remove the air filter, throttle body by hand to block imports of the filter, in order to reduce the intake area of ​​the main channel, so that the mixture thickens, the result becomes stable idling, acceleration is no longer tempered, indicating failure direct cause is too lean mixture. So to test the fuel pressure, the fuel pressure gauge tee between the fuel pressure regulator and injector tubes on the road, started to launch and change speed, the measured pressure values ​​within the normal range 255KPa-290KPa. Taking into account the air quality is an important factor affecting air-fuel ratio sensor, and then unplug the test, then unplug able to stabilize the engine idling, acceleration is also improved. Then remove it from the throttle body air quality sensor checks the hotline is not broken, but there is fouling on the hotline. To remove deposits, using direct spray carburetor cleaner, refitted after cleaning tests, the engine is running normally, the fault completely ruled out. Three well-known air filter, air filter is the engine intake system is an important device, its role is to clear the air entering the engine contained in the dust and impurities to reduce abnormal wear of cylinders, pistons and piston rings, extend engine life. In addition, it can guide the airflow, reduce noise due to the suction intake form, and therefore the quality of the merits of the engine intake is particularly important. Under normal circumstances, the air filter should be able to meet the following requirements: (1) the ability to filter the air in the dust, the stronger the better, but it does not affect the normal functioning of the engine power; (2) on the airflow through the air filter should be with less resistance, and has good sealing performance; (3) air filter after long time use, although not clean, the filtration capacity is not significantly decreased; (4) small size, light weight, simple structure suitable for the user's routine maintenance, and economical and durable. As the sticker type filter containing oil, both play better filtration effect without affecting the engine intake air. No matter how fine dust particles, it is always adhered to the filter and can not enter the nozzle and the cylinder. After a long period so that, dusty filter has been unable to effectively clean and can be replaced. Air filter after a period of time to be cleaned regularly, the basic principles of its cleaning cycle is: in dusty environments, each traveling 1,000 km should be cleaned once, if the deadline will not clean the air filter will not only reduce filtration effect, but will also filter clogging, resulting in increased intake resistance ratio of the combustible gas mixture generated disorder, resulting in decreased engine power, increased fuel consumption, environmental pollution, and therefore, should be carried out maintenance and cleaning of the engine air filter and intake Road two parts. Depending on usage, to regularly clean the air filter,
The method can be used with high-pressure air blown from the inside out, blow the dust filter. As the air filter is paper, so pay attention when blowing air pressure is not too high, so as not to damage the filter. General cleaning the air filter should be replaced after three new cleaning cycle can be made daily driving regional air quality may be. The spring air contains more dust, fine sand, air filter is prone to clogging, then there will be difficult to start the engine, weakness, idle instability and other symptoms. Air filter generally want to change the car once in 10,000 km, 1,000 km, or check once a month to clean, so that the engine is good. Driving during the rainy season, the water intake system must be avoided. Now car air filter media are mostly synthetic, if damp air filter, intake blocked increases, the vehicle becomes weak acceleration. Serious, water entering the engine under high temperature, the internal moving parts of the engine corrosion effect intensified, affecting engine performance. Four fuel system maintenance and fuel tank fuel system maintenance cleaning methods including replacing fuel filter, cleaning fuel injectors, and fuel lines. In the process of the fuel supplied to the combustion chamber through the oil, the inevitable formation of gum and coke, is deposited in the oil passages, fuel injectors and combustion chamber, fuel flow disturbance, disruption of normal air-fuel ratio, so poor fuel atomization, causing the engine to breathe shaking, knocking, idle instability, poor acceleration and other performance issues. Use cleaning agents to clean the fuel system fuel system, the engine can always maintain the best condition. Car fuel tank cleaning methods Currently, petrol and gas stations have excellent quality have inferior car used for some time, the tank will inevitably have a variety of impurities, making the oil supply system in the filter will gradually trouble. But the tank is filled with petrol, can not deal with it casually, not rinse with water. 1, check the tank exterior cleaning: Clean the external fuel tank inspection, check the tank, tubing, fittings or without clashing and leakage, and tighten the fuel tank bracket bolts. If you find a clashing and leakage, repair damaged parts should be removed. 2, tank cleaning operations: Open the fuel tank opening, remove the filter cartridge, part of the fuel sucked out of the fuel tank, fuel tank leaving about 30L so. The clean compressed air pipe (preferably plastic tube) is inserted from the bottom of the fuel tank filler tube opening to 2 ~ 3kg/cm2 blowing fuel pressure at the bottom of the fuel tank to make it writhed and cleaning. When cleaning cloth used to clean the fuel pipe is slightly inserted into the blocked nozzle and the lower end of changing the position and direction of the trachea. When moving, taking care to avoid hitting the oil level sensor float. Purged 20 minutes immediately after the release of the fuel in the fuel tank, the suspension in the oil together with the impurities in the fuel outflow. If the fuel out of the dirty, the above method should then wash again tank. Refitted and tighten the oil drain plug. The fuel nozzle of the canister filter clean, into the fuel filler tube. Adding fuel to clean the tank, cover fuel tank cap, and wipe clean the external fuel tank. Note that the fuel discharged from the fuel tank should precipitate after 72 hours before using. Check the antifreeze checked five antifreeze because antifreeze relation to the vehicle engine is good or bad, do not ignore. In a smooth road, open the engine cover, you can see the position of the antifreeze tank, and antifreeze scale. But need other engine stopped, and after completely cooled down. Because the engine is running antifreeze levels will vary somewhat, is not easy. Normal: height antifreeze should be between the highest and lowest points, such as antifreeze darken, muddy, indicating lower quality, need to be replaced. If the antifreeze is abnormally increased, then there is a potential engine problems. Excess antifreeze can be first discharged, it fell to the highest point, and then to continue to see. If the antifreeze is still constantly increasing, we have to find a service station immediately checked and repaired. Exceptions: If too little antifreeze, antifreeze levels to a minimum the following, indicating the engine water, the result will cause the engine to heat up quickly. At high temperatures, the engine running can cause deformation of the cylinder or cylinder head gasket is burned. Recommendation: If the antifreeze is best to supplement the provisions of manufacturers with branded products. Winter should never add water to prevent freezing tank. Antifreeze should show the highest point between the ruler and the lowest point is good six spark plugs symptoms: the old spark plugs can cause lack of motivation, such as incomplete combustion engine power loss phenomenon is the spark plug for the consumables, and other accessories compared to the low price, but the merits of its ignition performance will directly affect engine performance, they need regular replacement spark plugs. Extended use: Since the spark plug ignition performance decline, will increase fuel consumption, power weakened. In unconsciously, every day and more fuel economic losses caused by fuel consumption, has hundreds of branches can buy a new spark plug. Extended use will make the long-term good working condition of the engine, the engine will cause some damage.

No comments:

Post a Comment