How to clean the engine compartment?

Although the engine compartment is relatively closed compared with the station wagon, it is not completely sealed and there will still be air circulation. Old iron that has been used for a long time will find a thick layer of dust and oil when the engine compartment is opened. So, facing the dirty engine compartment, does it need cleaning? If there are so many internal parts of the machine, how to clean them?

The answer is obvious-cleanliness is natural. A clean and tidy engine compartment is very beneficial to engine heat dissipation, prolonging engine service life and reducing engine aging and spontaneous combustion rate.

However, unlike car body cleaning, it is forbidden to wash directly with large water flow or high-pressure water gun.

There are two reasons: first, except for dust, most of the engine room is oily deposits, which cannot be washed away with water; Second, although the engine compartment of most vehicles has been waterproof, the tightness cannot be guaranteed, and it is still risky to wash it with big water. If there is a problem, the manufacturer will shirk the responsibility on the grounds of "not operating and maintaining according to the standard".

So, what should be the correct way to open the engine?

Pre-preparation: engine surface cleaning agent, engine harness care agent, two brushes (the brush head should not be too wide), engineering gloves, masks, wet towels (the kind that doesn't drip) and wet paper towels (a small bottle of clean water) (the total cost is about 80 yuan, so it's ok to buy them for several years).

In addition, it is recommended that you park your car near the drain when washing the car, because most of the oil discharged after washing the car is oily to avoid polluting the public environment.

Regular cleaning: The correct cleaning method is to use engine external cleaning agent, which can not only remove all kinds of precipitated engine oil in the engine room, but also minimize the loss of engine parts. If possible, it can also be combined with a bottle of harness care agent to protect the engine unit more comprehensively.

For the convenience of use, the detergent is generally sprayed, aiming at each dirty part, not stingy or excessive, so that it looks rich enough. Then the point is to do it yourself and start brushing. The temperament of a warm man can also be reflected in his figure of brushing the car.

There are two points worth mentioning: 1, the engine groups of many models will be equipped with engine covers to protect the engine and make it more beautiful. Be sure to remove it when cleaning. The head office will clean the inside part instead of the lid! 2, two kinds of cleaning agents are irritating to the human body, so try to wear gloves and masks when operating!

After brushing your teeth, don't rush to clean up the foam, let those dirty parts "digest" slowly, wait for about 5 minutes, and then proceed to the next step and scrub.

It is best to scrub with a wet towel or paper towel. Remember, it can't be a wet towel that can still wring water. It needs to be moist and moist, from the inside out, and clean all the places that have just been brushed.

The last step is to put another layer of "protective film" on our engine block-nursing agent. After spraying, you can spray a layer on the cleaned and slightly residual dirty parts, and the whole unit is basically as good as new!

Main summary

In fact, cleaning the engine unit is a point that many people tend to overlook, because if you go to 4S stores for maintenance, there will be no such items in their basic packaging, and most people need extra money to clean it. The general beauty shop and 4S shop are run by people, so it is difficult to get three or five hundred for each one. So I suggest that if you can DIY, don't be afraid of trouble. You can learn more about your car when you operate, and you can find out problems in time.