Several Wrong Car Repair Methods

There are some misunderstandings in the use and maintenance of automobiles. These misunderstandings have been formed for a long time in the era of low automobile manufacturing, backward repair methods and lack of testing methods. These misunderstandings sometimes seem to be correct. In fact, they are very harmful and cause damage to vehicles and threats to personal safety. The bigger possibility is that the hidden danger of the accident is buried, or the performance of the vehicle is degraded, the wear is accelerated, and the life is shortened. Oil Filter Wrench Supplier to explain to everyone.

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. The 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. The tighter the pump fan belt, the better

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. The engine is warmed up 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 (mixed gas) to break into the crankcase and wash away the oil film on the cylinder wall, which will also accelerate the wear of the machine. Therefore, after the engine is started for a few seconds, the application speeds up quickly (in modern cars, there is a quick idle speed device, after the machine temperature rises, it will automatically adjust to the idle state) to improve the lubrication conditions of the engine.

5. Bake the oil bottom with a blowtorch

Bake the oil bottom with a blowtorch in winter, which not only causes chemical changes in the additives in the oil, but also loses the original performance. It also causes the oil to gel and the oil bottom to deform, which is easy to cause fire. The best practice is to use the right oil according to the lowest temperature in the local winter. Where possible, it is best to park the vehicle in a garage with insulation.

The more advanced methods of removal are ultrasonic cleaning and nuclear cleaning, but the most common and simple methods are physical removal and chemical removal. These two methods can also be used together.

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