What problems should be paid attention to when driving on wet roads in rainy days?

Lesson 1: Pay attention to wet driving in rainy days.

[Try to keep a certain distance from the car in front when driving]

1. When driving, try to keep a certain distance from the car in front, don't follow the car too close, and don't overtake frequently. Also pay attention to maintain a certain speed, do not drive at high speed, and must slow down in many pedestrian sections to observe the situation in front and around.

2. When the fog is heavy, turn on the fog lights. Don't slam the steering wheel when turning sharply. Don't panic in case the vehicle slips. Calm down and take emergency measures. If the front wheel slips, the steering wheel should be turned in the opposite direction to the front wheel slip in time. If the rear wheel slips, the accelerator should be lowered immediately, and the steering wheel should be turned to the slipping side appropriately. If the road encounters a puddle, don't brake suddenly, lest the vehicle get out of control.

[Enjoy driving]

3. Stay happy while driving. The weather will also affect the mood, and driving in rainy days will inevitably make people feel depressed. Therefore, it is suggested that car owners can put some relaxing music or put a bottle of refreshing perfume in the car to adjust their mood.

4. Pay attention to check the tire wear. If the tire tread is found to be smooth, replace the tire in time. Excessive tire wear can easily lead to vehicle deviation, tail flick and longer braking distance. In this case, because the friction between the tire and the ground is reduced, the vehicle will easily slip.

These are the aspects that need special attention when driving in rainy days. In this rainy day with slippery roads and poor sight, car owners should be extra careful!

[Camshaft is installed on the top of cylinder head]

A: For this professional problem, we consulted Mr. Wu, the after-sales manager who has more than ten years of experience in repairing cars. Let's learn about the cam of the car first. Cams are divided into intake cams and exhaust cams. To understand them, we should look at the production of vehicles, because different manufacturers produce different cars. So, how to distinguish the characteristics of automobile cams? This is difficult for ordinary car owners to simply distinguish. Cars with large displacement are relatively easy to identify. For example, for a 2.3L car, the easiest way to distinguish the intake cam from the exhaust cam is to look at the difference between the screw position and the belt position on the cam. But cars with small displacement are not very beautiful. However, although the development and production of this technology by major automobile manufacturers are different, the principle is similar.

Camshaft is installed at the top of cylinder head, and its function is to drive the opening and closing of intake valve and exhaust valve. Both the intake and exhaust camshafts are hung with driving wheels, which are directly driven to rotate by chains or belts. Some engines use chain drive to drive the camshaft, the purpose of which is to reduce the valve included angle. The principle is that one camshaft is driven by a chain, and then the gear installed on the camshaft drives the other camshaft by a chain.

[The chain or belt directly drives the camshaft to rotate]

Let's take a look at the usual "eight characters", which is also closely related to the intake and exhaust of the engine cylinder. The figure of eight can generally be divided into the upper figure of eight and the lower figure of eight, that is, the valves overlap, the intake opens early, and the exhaust closes late. The upper figure of eight generally indicates that the exhaust valve is closed, showing an upper figure of eight. The lower figure of eight is generally that the intake valve and exhaust valve have just opened a little, showing the shape of the lower figure of eight.

The above introduction provides some reference for the majority of car owners to deeply understand their cars. If you want to know more about your car, the owner can go to the regular after-sales maintenance point and consult a professional master according to the different models, so that they can answer you in detail.