1. The battery plays an important role in the use of the car if it cannot provide power normally the engine will have problems or stall. Generally speaking, the battery used in the car should be replaced every two years. If properly maintained, it can be used for four years.
2. Car batteries should be checked frequently, once a week in summer and once every two months in winter. Factors that affect battery life are: vehicle condition, road conditions and driver habits. Generally, new cars save battery because the alternator of new cars has good performance and the battery can be fully charged.
3. Car batteries require frequent maintenance. Cars consume much more energy in winter than in other seasons, so it is necessary to take special career to the battery after entering winter. First, keep the exterior of the battery clean to extend its life. Be careful not to let liquid enter the battery when cleaning. Secondly, it is best not to start the car for more than 5 seconds each time. If the first start fails, do not rush to start it repeatedly. Because when starting the car, continuously cranking the engine will damage the battery due to over-discharge. If the car still won't start after several starts, it's time to call a professional.
4. There are many ways to determine if the battery is dead. You can equip it with a multimeter. If it does not light up once or twice, the voltage may not be sufficient. , after the battery has been used for more than a year, usually when starting the car, you canFirst press the horn. If the horn is not as loud as before, it means the battery is almost discharged. Also turn on the headlights to check. If the light is white and bright, it means the battery is normal; If the light is red and dim, it means the battery is insufficient.
The old Lefeng instrument has a defective bulb
The timing belt needs to be replaced at 60,000 kilometers.
The timing transmission system is an important part of the engine gas distribution system. It is connected to the crankshaft and matched with a certain transmission ratio to ensure the accuracy of intake and exhaust timings. It generally consists of tensioner pulley, idler pulley, timing belt and other accessories. As with other automobile parts, automobile manufacturers clearly stipulate that the regular replacement periodThe distance of the distribution transmission system is generally 60,000 kilometers.
Damage to the timing transmission system parts will cause the vehicle to break down while driving, and in severe cases it will lead to engine damage.
Detailed information:
1. Timing belts have been used in engines for a long time. The technology is mature, the cost is low, and the noise is low. However, they require regular inspection and inspection. Interview. The timing chain has compact structure, high transmission power, high reliability and wear resistance, lifetime maintenance-free and other significant advantages, but compared with the traditional timing belt, its noise is usually slightly louder.
2. The chainsCommon timing chains are mainly divided into two types: sleeve roller chains and toothed chains. Among them, the roller chain is affected by its innate structure, and the rotation noise is more obvious than that of the timing belt. The transmission resistance and inertia will also be proportionally larger.
The commonly known silent chain adopts a toothed structure design. The teeth are smoother during transmission, the impact is lower and the operation is smoother. In addition, it does not have a chain roller structure that produces noise. Therefore, the noise performance is better than traditional timing belts.
Baidu Encyclopedia - Timing Belt
Ifeng.com - Many car owners do not understand how often the timing belt needs to be replaced< /p>< /p>< p>LCommon reasons and solutions for bulb failure in old LeFeng instruments are:
1. The light fuse is broken. The solution is to replace the fuse with the same resistor.
2. A fault in the vehicle's voltage regulator causes the vehicle's circuit voltage to be too high, causing the lamp to burn out. The solution is to replace the lamp with a new one and replace the voltage regulator.
3. The battery wires are in poor contact, causing the generator's no-load voltage to be too high, causing the lamps to burn out. The solution is to properly secure the battery wires and replace the lamps.
4. There is a short circuit between the generator armature and the magnetic field coil, causing the voltage to be too high, causing the lamp to burn. The solution is to repair the generator coil to normal and. replace the bulb.