Teach you how to prevent summer heat boil refrigerator
Time：2014.04.29 Come：Yuhuan, teyu machinery Co., LTD fan clutch View：
Summer is the "boil " phenomenon of multiple seasons , mostly due to the cooling water tank caused by too little , of course, there is the thermostat , electronic radiator fan failure or dirty reasons. In order to avoid " boil" phenomenon, we want to advance the prevention, the cooling system on a regular basis for check-ups and learn how to handle boil . According to special margin fan clutch teach you how to prevent summer boil method :
How to prevent boil water tank
In order to prevent the occurrence boil water tank , we want to make the cooling system checked regularly , and before checking to ensure that the vehicle other related components properly, such as using the correct grade of fuel, oil , spark plugs, antifreeze , and adjust the ignition timing and idle air-fuel ratio and so on. In the cooling system further examination of these areas are normal.
Cooling system check sequence :
First, check the water tank
When the tank cars normally be consistent with the temperature up and down , if the situation occurs half cool the hot side , inside the tank can determine blockage . The tank can be connected to the 2 kg pressure pipes , reverse flushing , severe blockage if a small amount of cleaning agents can be used , taking care to wash the dirt tank and observe for leaks .
Second, check the thermostat
Some people think that the removal of the thermostat can prevent the water temperature is high , in fact, as long as the thermostat is functioning properly and does not cause the water temperature is too high, while the engine is running at low temperature for a long time is very harmful ; many additional engine thermostat is a two-way effect , when the thermostat is closed, forced to go small cycles of cooling water , and the thermostat is turned on, the small loop closed loop cooling water all go big . If you do not install the thermostat , because the pipeline throttling role of local resistance , the actual flow of the water cycle in a few , but the water temperature rises .
Third, check the pump
Damage to the pump in three ways: leakage, corrosion lost rpm and impeller . The so-called lost water pump shaft and impeller rotation is with the gap is too large, when the engine reaches a certain speed , the pump impeller can not reach the appropriate speed , resulting in poor circulation .
Fourth, the fan , the exhaust system checks
Cooling fan is also a major component , and some cars have eliminated the fixed fan , and fan and replaced with silicone electromagnetic clutch . It is characterized by a cold car fan basically does not work , and the maximum amount of heat hot car ; major fault silicone fan clutch is leaking , and the main fault electromagnetic fan clutch is the temperature switch is damaged , the line is damaged, the electromagnetic coil damage . In addition to the engine cooling water as heat medium , the part with the exhaust heat can be lost, the oil can also take some of the heat , but more air flow around the engine plays an irreplaceable role , so do not forget to check when the check engine overheating exhaust system ( especially with catalytic converter models ) are smooth, oil, transmission oil cooling device is intact. Also near the engine fan wind shield ( commonly known as the wind turns ) heat convection inside the cabin plays a vital role on the check should pay attention to .
□ Note: To prevent boil water tank phenomenon occurs in the course of everyday car , the engine should not be overloaded with , reducing engine load ; keep the cooling system of external and internal cleaning , in order to play better thermal performance , to promptly clean up the heat coolant tank and whether there are advantages and disadvantages of scale, have a direct impact on the cooling effect ; devices . Summer should raise quality of cooling water ; tightness fan belt should fit , too loose affect coolant circulation, accelerate belt wear, too tight will pump bearing wear , so to adjust the belt tension on a regular basis , in addition to the fan should be kept belt cleaning .
"Boil " Emergency Treatment
We often say "boil " refers to the engine cooling water in the tank reaches the boiling point , and now the car is mostly water cooling to the engine cooling, engine cooling system mainly water pump, radiator, cooling fan , thermostat , engine block inside the cylinder head water jacket and other components, also called a heat exchanger tank , water tank built in sufficient cooling water , the engine in the work process will produce high heat pump driven by the engine cooling water tank inside the loop , as the water and air , oil medium heat compared to its maximum , so its cooling effect is best when the water from the engine block , the water jacket wall around the cylinder head to flow through , and full contact with the wall of the water jacket to absorb heat around the heat away , and then by the thermostat into the radiator intake , a high temperature in the radiator cooling water to flow through the cooling air around the radiator to reduce the temperature , and finally cooled by the cooling water radiator return pump outlet , and so on .
If there is damage to the thermostat in the cooling system , the electronic fan damage , loss of water tanks and other reasons , the cooling water will not cool down tank , causing the water temperature , when the water reaches the boiling point will produce a large number of bubbles, part of the area occupied by the bubble , the cylinder wall will cause serious loss of surrounding water , while the cooling water in the tank as well , but in the surrounding cylinder wall , but not enough to heat the water , greatly reduce the heat exchange efficiency , it can not be the cylinder heat to heat the water tank . When the temperature inside the cylinder will rapidly rise , if not promptly dissipated these excessive heat and continued high-load driving, it will make the lower strength pistons, piston rings , connecting rods and other components , and even deformation, can not afford the normal load , but also disrupt the normal gap between the parts , so that between the parts can not maintain a normal film , ranging from the engine will pull the cylinder , Lava , but also the whole weight of the engine damage or even scrapped .
Summer boil them in their daily driving and sometimes can not be avoided , then boil up once , we should be how to deal with , in order to minimize the loss? When we first need to boil the water tank occurred analysis is still at low speeds boil boil at high speeds , because in both cases the boil treatment is not the same .
When the tank low boil occurs when the boil is running at low speed before the engine is in the state , should immediately pull over , turn off the engine , and the engine cover is open in order to facilitate its heat, then a call to the service station to wait for rescue .
If the engine is a high speed before the boil , we should immediately pull over the car parked with a low boil then do not put a different engine fire, but should let the car engine running idle for some time . Because the state before the engine is high speed , the engine produces a lot of heat comes out yet , they still need the residual heat to the cooling water comes out . For example, there are many people like racing like extreme driving, can finish high speed immediately after flameout , when the internal temperature of the engine is still high , turn off the pump suddenly stopped working after the radiator cooling water is not circulating , resulting in still water after parking will continue to rise for some . Of course, this situation is normal, there is no problem as long as the cooling system , the water temperature will quickly return to normal.
After the engine speed operation will generate a lot of heat, boil rapidly turn off later if these heat will produce very high temperatures , is part deformation damage . The reason for idle running for some time, because the radiator cooling water pump is driven by , and operate the pump and coaxial with the crankshaft of the engine, the engine stops running when it stopped rotating crankshaft , when the pump is also not working the radiator cooling water can not cycle the temperature inside the engine will soar. In this case , you should let the car idling in the street for a while and then turn off, and will also open the engine hatch to wait for rescue .
Summary:
Boil water tank causes are many and complex , when found should be immediately stopped and the water temperature is too high , and using the correct method of emergency , otherwise the high temperature will accelerate the wear of internal engine parts between the engine causing great damage. But after all, belong to the remedial approach , in addition to multiple terms for the driver to have some knowledge of foreign cars should be ground observation instruments in everyday driving , so early detection and early treatment , prevention is more important .
