What should you pay attention to when using the vehicle in summer?
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Author:demingcn
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Published time: 2016-04-26
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The hot summer is a season of frequent vehicle failures. It is common to see vehicles crashing on the curb, rooted in hot weather that can trigger the following accidents.
Hot summer is the season of frequent vehicle failures, often seen vehicles on the roadside anchor, the root cause is the hot weather, it Can trigger the following accidents。
① radiator easy to boil, damaged cylinder pad. The high temperature of the road, the high temperature of the engine running and the high temperature of the air conditioner condenser will cause the coolant temperature to rise. If the thermostat fails to open and the electronic fan is worn and the scale of the radiator is serious, the coolant temperature will be Up to the boiling point, resulting in cylinder pad damage.
② easy deterioration of oil and burning. When the engine is operating in an overheated environment, the viscosity of the oil is reduced and its oxidation resistance is deteriorated, exacerbating its thermal decomposition and oxidation. At the same time, dust in the hot air and moisture in moist air enter the engine oil sump contaminating the engine oil through the intake system and crankcase vents, causing the engine oil to deteriorate. In addition, the high temperature will make the oil through the cylinder wall, valve seals and other parts fleeing into the combustion chamber involved in combustion, easily lead to evaporation and burning.
③ parts wear increased. Engine running at high temperatures, large thermal expansion of metal parts, the smaller the gap between the normal fit of parts, wear increased. At the same time, high-temperature operation of the engine piston top, combustion chamber wall, valves and other parts of the adhesion of coke and plastic material, will accelerate the damage parts. In addition, due to engine overheating, oil thinning, lower oil pressure, lubricating oil film is not easy to form. Also accelerate wear parts.
④ deteriorated braking performance. High temperature brake pads and brake discs to reduce heat dissipation, frequent braking. Braking force drops quickly. Especially in steep mountain slopes, Urgent and other complex driving conditions, the use of the number of system Bo increased, the brake system temperature will rise sharply, so that deteriorated braking performance.
⑤ fuel supply system prone to air resistance. Oil heating system, the part of the fuel in the gas state exists in the tubing and pump, not only increase the fuel flow resistance, while the fuel supply pipe knock steam with the pump pressure is constantly being compressed and expanded, will damage the pump oil The degree of vacuum formed in the process, resulting in insufficient or interrupted engine fuel supply, that is, to produce fuel to the general air resistance.
⑥ mixture is not burning properly. As the temperature of the atmosphere increases, the temperature of the mixture entering the cylinder also rises and the temperature of the engine will be higher, causing the lubricant that enters the cylinder to become gummy and coke at high temperatures and anoxic conditions. Coke accumulates in the top of the piston, the combustion chamber wall, valve top and spark plug, forming a hot spot. Cause the engine hot ignition, it will have spontaneous combustion or deflagration.
⑦ air conditioning pump load increased, the cooling effect worsened. High temperature air-conditioning pump kept running, air-conditioning cooling capacity decreased, the cooling effect will be worse.
⑧ easy to puncture. Pavement temperature will make the tire temperature increases, tire pressure increases. Tire deformation frequency to accelerate the accelerated aging of rubber, prone to a flat tire accident, especially in the case of serious wear and tear even more so.
Vehicle summer maintenance focus:
① good cooling system maintenance. Clean radiator and engine cooling lines, remove scale completely, replace standard coolant, clean radiator surface, check electronic fan operation, replace electronic fan if necessary, check pump wear.
② cleaning lubrication system, replace the engine operating conditions of the oil, it is recommended to use high temperature oxidation resistance of synthetic oil.
③ cleaning the fuel supply system, including cleaning the fuel injector, pump screen, replace the fuel filter, check the spark plug, air flow meter and oxygen sensor operation.
④ check and clear the engine cylinder and the intake and exhaust valve coke.
⑤ check air-conditioning refrigerant for leaks, inadequate replenishment; check the dryer, expansion valve operation, if necessary, replace.
⑥ maintain the standard tire pressure, and to do ground checks, including checking the air pressure, whether the nails, abnormal wear, cracking, bulging and so on, pay attention to remove the tire tread mixed with gravel.
⑦ check the brake booster vacuum tube leaks, replace the brake fluid on time.
① radiator easy to boil, damaged cylinder pad. The high temperature of the road, the high temperature of the engine running and the high temperature of the air conditioner condenser will cause the coolant temperature to rise. If the thermostat fails to open and the electronic fan is worn and the scale of the radiator is serious, the coolant temperature will be Up to the boiling point, resulting in cylinder pad damage.
② easy deterioration of oil and burning. When the engine is operating in an overheated environment, the viscosity of the oil is reduced and its oxidation resistance is deteriorated, exacerbating its thermal decomposition and oxidation. At the same time, dust in the hot air and moisture in moist air enter the engine oil sump contaminating the engine oil through the intake system and crankcase vents, causing the engine oil to deteriorate. In addition, the high temperature will make the oil through the cylinder wall, valve seals and other parts fleeing into the combustion chamber involved in combustion, easily lead to evaporation and burning.
③ parts wear increased. Engine running at high temperatures, large thermal expansion of metal parts, the smaller the gap between the normal fit of parts, wear increased. At the same time, high-temperature operation of the engine piston top, combustion chamber wall, valves and other parts of the adhesion of coke and plastic material, will accelerate the damage parts. In addition, due to engine overheating, oil thinning, lower oil pressure, lubricating oil film is not easy to form. Also accelerate wear parts.
④ deteriorated braking performance. High temperature brake pads and brake discs to reduce heat dissipation, frequent braking. Braking force drops quickly. Especially in steep mountain slopes, Urgent and other complex driving conditions, the use of the number of system Bo increased, the brake system temperature will rise sharply, so that deteriorated braking performance.
⑤ fuel supply system prone to air resistance. Oil heating system, the part of the fuel in the gas state exists in the tubing and pump, not only increase the fuel flow resistance, while the fuel supply pipe knock steam with the pump pressure is constantly being compressed and expanded, will damage the pump oil The degree of vacuum formed in the process, resulting in insufficient or interrupted engine fuel supply, that is, to produce fuel to the general air resistance.
⑥ mixture is not burning properly. As the temperature of the atmosphere increases, the temperature of the mixture entering the cylinder also rises and the temperature of the engine will be higher, causing the lubricant that enters the cylinder to become gummy and coke at high temperatures and anoxic conditions. Coke accumulates in the top of the piston, the combustion chamber wall, valve top and spark plug, forming a hot spot. Cause the engine hot ignition, it will have spontaneous combustion or deflagration.
⑦ air conditioning pump load increased, the cooling effect worsened. High temperature air-conditioning pump kept running, air-conditioning cooling capacity decreased, the cooling effect will be worse.
⑧ easy to puncture. Pavement temperature will make the tire temperature increases, tire pressure increases. Tire deformation frequency to accelerate the accelerated aging of rubber, prone to a flat tire accident, especially in the case of serious wear and tear even more so.
Vehicle summer maintenance focus:
① good cooling system maintenance. Clean radiator and engine cooling lines, remove scale completely, replace standard coolant, clean radiator surface, check electronic fan operation, replace electronic fan if necessary, check pump wear.
② cleaning lubrication system, replace the engine operating conditions of the oil, it is recommended to use high temperature oxidation resistance of synthetic oil.
③ cleaning the fuel supply system, including cleaning the fuel injector, pump screen, replace the fuel filter, check the spark plug, air flow meter and oxygen sensor operation.
④ check and clear the engine cylinder and the intake and exhaust valve coke.
⑤ check air-conditioning refrigerant for leaks, inadequate replenishment; check the dryer, expansion valve operation, if necessary, replace.
⑥ maintain the standard tire pressure, and to do ground checks, including checking the air pressure, whether the nails, abnormal wear, cracking, bulging and so on, pay attention to remove the tire tread mixed with gravel.
⑦ check the brake booster vacuum tube leaks, replace the brake fluid on time.
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