In the use of vehicles, often oil leakage fault, it will directly affect the technical performance of the car, resulting in the waste of lubricating oil, fuel, consumption of power, affect the appearance of the car clean, resulting in environmental pollution. Due to oil leakage and the reduction of lubricating oil inside the machine, the parts are not well lubricated and the cooling is insufficient, which will cause early damage to the parts and even leave hidden trouble. Here is Jinan Benz automobile maintenance to introduce to you:
1. Pay attention to the function of cushion. The gasket between parts of automobile static parts (such as joint end face, end cover, shell, cover pad, flat enamel cover plate, etc.) plays a role of leak proof and sealing. If the material, manufacturing quality and installation do not meet the technical specifications, it will not play the role of sealing and leakage prevention, and even accidents. For example, the oil pan or valve cover is not easy to be compacted due to large contact area, resulting in oil leakage.
2. All kinds of fastening nuts on the vehicle should be tightened according to the specified torque. If the gasket is too loose or not tight, it will leak; if it is too tight, it will make the metal around the screw hole bulge or screw the screw thread to slide, causing oil leakage. In addition, if the oil drain plug of oil pan is not tightened or loose, it is easy to cause oil loss, and then the engine damage accident of "burning tile and holding shaft" occurs.
3. Replace the failed oil seal in time. Many moving parts (such as oil seal and O-ring) on the car will throw oil due to improper installation, misalignment between journal and oil seal edge, and deflection. Some oil seals will lose elasticity due to rubber aging if they are used too long. If leakage is found, it should be updated in time.
4. Avoid blocking the check valve and vent valve. As a result, the temperature in the tank increases, the oil and gas fill the whole space and cannot be discharged, the pressure in the tank increases, the consumption of lubricating oil increases and the replacement period shortens. After the engine ventilation system is blocked, the movement resistance of the piston is increased and the fuel consumption is increased. Due to the effect of the air pressure difference inside and outside the box shell, oil leakage often occurs at the weak part of the seal. Therefore, it is necessary to inspect, dredge and clean the vehicles regularly.
5. Properly solve all kinds of tubing joint sealing. The automobile union nut is often disassembled, which is easy to slide, break and loosen, and cause oil leakage. Replace the union nut, and use the grinding method to solve its cone sealing, so that the nut is compressed to solve the sealing problem.
6. Avoid hub oil spilling. Too much grease in the hub bearing and cavity, or improper oil package, poor quality and aging failure, too high hub temperature caused by frequent braking, and loose axle nut will cause hub oil rejection. Therefore, it is necessary to use "cavity lubrication method" (that is, proper lubrication) "to dredge the air vent.