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Counting four major mistakes in engine maintenance
The engine of a car is just as important as our heart. Its quality will directly affect our normal travel, so it is a top priority for its maintenance work. Today, the editor is here to introduce you to the four misunderstandings in the common engine maintenance and maintenance, hoping to arouse the vigilance of the majority of car owners.
1 blindly remove the engine thermostat
If the thermostat is blindly removed due to high engine temperature, the coolant can only be subjected to large cycles, and the cooling intensity cannot be adjusted. It is difficult to ensure that the engine operates at a suitable temperature, and the engine is often operated at a low temperature, resulting in a decrease in engine power. The wear is accelerated and the fuel consumption is increased. If the engine temperature is still high after the engine thermostat has been repaired or replaced, the other parts of the cooling system should be inspected and the thermostat cannot be removed.
2 engine temperature is afraid of high and not afraid of low
Some people think that the engine temperature is not high or low when driving. In fact, when the engine temperature is low, the danger is also great. It should be driven according to the normal temperature specified in the car’s instruction manual to ensure the service life of the engine.
3 pump fan belt is as tight as possible
The tighter the belt, the better. Too tight a belt will not only lengthen or break it, shorten the service life of the belt, but also cause excessive deformation of the generator shaft and pump shaft and early damage of the bearing due to excessive pulling force. The tightness of the automobile engine fan belt should meet the technical requirements. Generally, the deflection of the normal belt assembly is 10-15mm.
4 engine with idle speed
When the temperature is raised by idle speed, the oil pump can not press the lubricating oil into the lubricating surface quickly, and the oil pressure is low, so that the moving parts of the engine work under dry friction or semi-dry friction; the fuel is low temperature Poor atomization causes unburned fuel to enter the crankcase and wash away the oil film on the cylinder wall, which also accelerates the wear of the machine. Therefore, after the engine is started for a few seconds, the application speeds up quickly and improves the lubrication condition of the engine.
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