Predictive trade data modeling

List of contents in this article:

• 1, How to identify the original import of automobile engine
• 2、How to identify the engine of a used car

How to identify the original import of the car engine

1. Judging from the origin of the engine,Predictive trade data modeling this can basically be judged by the first three letters of the engine number, and the third point is from the start In terms of machine displacement, first of all, the machine is generally assembled on the domestic production line, and the localization of components will not be high immediately.

2. The origin of the engine can be judged from the first three letters of the engine number. Engines are generally assembled in domestic production lines, and the localization of parts will not be very high immediately.

3. Different configurations. The engines of imported and domestic engines are different in configuration. Generally, imported engines have higher configurations and more power. Give birth toThe origin of the engine can be judged from the first three letters of the engine number. Engines are generally assembled in domestic production lines, and parts are generally made abroad.

How to judge whether the car engine is good or bad

1. Check the external cleanliness of the engine to see if it is grayThere is too much dust to determine whether the wear is too much, but special attention should be paid to it. If it is not stained, it does not mean that the car is worn very little, or the owner may have done something to cover up some information.

2. Look carefully at the engine cover; carefully check the water tank; check whether there are traces of oil and oil in the engine compartment and below; check the performance of the vehicle engine. Observe the engine cover carefully. When you open the hood, first check if there is baking paint in it. If so, it means that the cover has been hit.

3. First of all, when the engine starts, you should observe whether the start-up process is smooth. It is directly started successfully within 2 seconds after ignition, and then runs smoothly, indicating that the engine has good starting performance. Secondly, after the engine is started, observe the stability of the engine operation.

4. Look at the launchEngine speed: Generally speaking, the engine speed between 2500 and 3000 is a more suitable engine speed. In the case of the same 120 miles, we can find that the more expensive some cars, the lower the engine speed may be.

How to distinguish the engine of a used car from good or bad

Therefore, to distinguish the quality of the engine of a second-hand vehicle, you can judge the working conditions by checking whether the idle speed is stable at the beginning.

Look at whether the gaps around the hood of a used car are the same, and whether the gap between the wing plate and the hood and the windshield is the same. These subtleties are the standard for identifying the quality of an engine.

The following is the way to judge whether the engine is good or bad: lookEngine speed. Generally speaking, the engine speed between 2500 and 3000 is a more suitable engine speed. In the same case of 120 miles, the more expensive the car, the lower its engine speed may be.

It depends on the quality of the engine condition. First of all, you need to start the engine. At this time, you should carefully listen to whether the engine has any abnormal noise and noise, and then start it to feel whether the power output of the engine is smooth and whether the power response is fast. Finally, read the fault code.

The hood is the place where the most secrets are hidden. When opening the hood, carefully check whether the inside of the hood has been painted. If there are traces of baking, it means that the cover has been hit.

In the process of judging the performance of the vehicle by the sound of the engine, some car ownersIt will only be judged by the volume of the sound to hit the stove. It is quite unscientific to pretend to be a laughing attendant. For example, the sound of the engine is relatively loud, which cannot characterize the performance of the vehicle.

How to identify the second-hand car engine

Check the internal condition of the engine through the oil filling port. Check the vehicle engine. First, in the cold condition, open the oil filling port cover (oil cap) of the engine and observe The internal condition of the engine is good or bad. Observe whether there is oil sludge accumulation in the internal cylinder block and whether there is carbon accumulation.

Look at whether the gaps around the hood of a used car are the same, and whether the gap between the wing plate and the hood and the windshield is the same. These subtleties are the standard for identifying the quality of an engine.

Look at the appearance: Check the engine through the appearance to see if there is oil leakage, especially in summer, when the temperature is high, the oil seal and rubber pad of the car may age in a long-term high-temperature environment, resulting in oil leakage. When buying a second-hand car, you need to check the details of the engine.

The identification method of used cars is as follows: Look at the appearance: Check whether the engine has oil leakage through the appearance, especially on hot days and high temperatures. Oil seals and rubber pads may age for a long time in high temperature environments, resulting in oil leakage. When you buy a used car, you have to check the details of the engine.

The hood is the place where the most secrets are hidden. When opening the hood, carefully check whether the inside of the hood has been painted. If there are traces of baking, it means that the cover has been hit.