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The first thing to be clear is that the car is a complex part complex. Therefore, in the ordinary maintenance, we must not only maintain the parts of the parts but also maintain them, so as to extend the life of the vehicle and enhance the driving comfort. Here are the parts that are neglected by most people on weekdays.
Automotive brake disc system
The brake disc and the brake shoe are a pair of friction pairs. It is known that the brake shoe wears and the brake disc wears too. However, many people only pay attention to changing the shoes while maintaining the vehicle, but often neglect to replace them. Brake disk. The consequences of excessive wear on the brake disc are very serious. First, due to the reduced surface flatness, the actual contact area becomes smaller, resulting in insufficient braking force; secondly, the heat capacity of the brake disc after wear is reduced and the brake is continuously braked. When the temperature rises quickly, it is more likely to cause thermal decay. All of these are very dangerous while driving. Some repair shops put the heavily worn brake discs on the lathe for surface treatment, commonly known as “discs,†so that the surface is flat, but the disc becomes thinner, and the thermal decay during braking is more serious. The last thing to note is that the high temperatures generated during the process will cause the brake disc to anneal, further reducing the mechanical strength. In general, after two or three brake shoe replacements, the brake disk should also be replaced. Don't feel bad about these hundreds of dollars. After all, human life is priceless.
Car ignition line
Most people know that spark plugs need to be replaced on a regular basis, but they neglect the maintenance of other components of the ignition system. One of them is the ignition high-voltage line. When the engine is running, there are often tens of thousands of volts of high-voltage pulse current on the ignition line. Because it operates in a high temperature, dusty, and vibration environment for a long time, it will inevitably occur aging or even damage. Therefore, like spark plugs, it is also a consumable item that requires frequent replacement. Aging and breakage of the ignition wire will greatly reduce the ignition energy, increase the engine oil consumption, decrease the power, and severely cause a fire break. This is a fatal failure for an engine with a three-way catalytic converter. According to foreign experience, even if there are no failures, a set of ignition high voltage lines need to be replaced every 20,000 kilometers. Many domestic car owners often have to wait until the engine appears to be unstable or even unable to start the fault, they only remember to check the ignition system, but at this time, the wasted fuel and engine wear caused by the potential damage to the ignition system components have far exceeded. Its own value. In addition, parts such as distributor caps, distributor heads, ignition coils, and spark plug plugs in the ignition system should also be within the scope of routine maintenance and inspection.
Automotive Generator Bearing
Many repairmen are now jokingly referred to as "loaders", meaning that they will only change parts and will not repair them. In fact, as long as some parts are maintained according to regulations, their life span can be greatly extended. Generators are one of them. Several years ago, the generator was still an expensive component in the car. At that time, there was a whole set of maintenance regulations for the generator in the automobile maintenance regulations, such as timely lubrication, replacement of bearings, adjustment, replacement of carbon brushes, and adjustment of touch. Point gaps, etc. Now that the price of spare parts has been reduced, routine maintenance of generators has gradually been neglected. In fact, if the bearings are inspected and replaced as described above, the life of the generator can be extended by at least 1 time. In general, after the vehicle has traveled 60,000 to 80,000 kilometers, the generator should be overhauled. In addition, the bearings of the water pump, power steering pump, and air-conditioning compressor should also be inspected periodically.
Shock absorbers for vehicles
Leakage is a sign of damage to the shock absorber. In addition, bumping on a bad road or increasing the braking distance is also a sign of damage to the shock absorber.
Suspension control arm sleeve
After the rubber sleeve is damaged, the vehicle will experience a series of malfunctions such as deviation and play, even if four-wheel positioning is not effective. If you examine the chassis carefully, damage to the rubber sleeve can be easily detected.
Vehicle steering lever
Turning the lever loose is a serious safety hazard. Therefore, during routine maintenance, this area must be carefully inspected. The procedure is simple: Hold the lever and shake it vigorously. If it is not shaken, it means that everything is normal. Otherwise, you should replace the ball or the rod assembly.
Underbody exhaust pipe
The exhaust pipe is one of the most easily damaged parts of the vehicle. Don't forget to take a look at the inspection. Especially exhaust pipes with catalytic converters should be carefully examined.
Universal boot
Do not underestimate the dust jacket on the outside of the universal joint. It not only has a dust-proof effect, but also can prevent the loss of grease around the universal joint. Once the dust jacket is damaged, the grease will soon be lost due to dry grinding. The section is easily damaged.