The first thing to note is to prevent water from entering the muffler. When driving or washing a car on deep water, prevent water from entering the muffler. If water enters accidentally, the engine should be started for at least 10 minutes at idle speed, and the accumulated water inside should be discharged as far as possible. And add anti-rust oil inside the muffler, here I want to emphasize the specific method of refueling:
First of all
Remove the muffler, plug the drain hole at the lowest position in the middle of the muffler, and then add anti-rust oil from the connection between the muffler and the engine, shake the muffler to let the anti-rust oil evenly enter the cylinder, and then install the muffler. As the muffler temperature gradually rises, it prevents rust When the oil is heated, it will volatilize and blue smoke will be emitted from the tail of the muffler. But the blue smoke will disappear after driving about 20 kilometers. After the blue smoke disappears, remove the blockage of the drain hole. It is also recommended that a new car should be refueled for maintenance after the license is on the card, and that it should be refueled and maintained every six months.
Secondly
It is the discoloration of the muffler that many people are concerned about. When the car encounters a situation that is difficult to start, you should first close the choke door to start the engine, and pay attention to opening the choke door in time. Do not drive at high speed and low gear for a long time with the choke door closed. This will cause damage to the engine and the muffler; secondly, pay attention not to hit the throttle at high speed on the spot for a long time, because when the muffler surface is oily, after you start the car Will make its surface color discolored and yellow. In addition, when there is a large amount of dirt and other dirt on the surface of the muffler, it must be cleaned up in time to avoid affecting its heat dissipation function.
significance
Although the exhaust pipe is not a precision part inside the car and is exposed, many people think it must be a durable part. Therefore, even if it is covered with dirt, it will be considered normal. But a very important point is that the exhaust pipe can connect foreign matter with the interior of the car, and its main function is to discharge the exhaust gas from the interior of the car. However, if you drive improperly, substances that are harmful to the interior of the car will enter the car through the exhaust pipe. Therefore, the maintenance of the exhaust pipe is the maintenance of the interior of the automobile in various senses.