Oil Leakage Affects Car Performance

【Owner's home car knowledge】In the use of vehicles, there are often oil leakage failures, which will directly affect the technical performance of the car, lead to waste of lubricating oil and fuel, consume power, affect the cleanliness of the car, and cause environmental pollution. Due to oil leakage and reduction of lubricating oil inside the machine, poor lubrication and insufficient cooling of the machine parts will cause early damage to the machine parts and even leave hidden dangers of accidents.

Common causes of vehicle oil spills

1,The quality, material or workmanship of the product (accessory) is not good; there are problems in the structural design;

2,Improper high-speed assembly, unclean mating surfaces, damaged gaskets, displacement or failure to install in accordance with operating procedures;

3.The uneven tightening force of the fastening nut, the breakage of the sliding wire or the loosening and falling off cause the work to fail;

4.The sealing material wears too much after long-term use, aging and deterioration, deformation and failure;

5.Too much lubricating oil is added, the oil level is too high or the wrong oil is added;

6.Parts (side covers, thin-walled parts) joint surfaces are deflected and deformed, and the shell is damaged, causing lubricating oil to leak out;

7.After the vent plug and one-way valve are blocked, due to the effect of the air pressure difference inside and outside the box shell, oil leakage will often be caused at the weak seal.

Measures to prevent vehicle oil spills

1,Pay attention to the cushioning effect. The gasket between parts of the static parts of the car (such as each joint end face, each end cover, shell, cover pad, flat enamel cover plate, etc.) plays a role of leak-proof sealing. If the material, production quality and installation do not meet the technical specifications, the sealing and leak-proof effect will not be achieved, and even accidents will occur. For example, the oil pan or valve cover is not easy to compact due to the large contact area, resulting in oil leakage;

2,All kinds of fastening nuts on the vehicle must be tightened according to the specified torque. If the gasket is too loose and not tight, the gasket will leak; if it is too tight, the metal around the screw hole will bulge or the screw thread will slip, causing oil leakage. In addition, if the oil drain screw plug of the oil pan is not tightened or loosened, it is easy to cause oil loss, and then the machine damage accident of "burning paddle and holding the shaft" occurs;

3.Replace the failed oil seal in time. Many moving parts (such as oil seals and O-rings) on the car will throw oil due to improper installation, misalignment between the journal and the edge of the oil seal, and deflection. Some oil seals will lose their elasticity due to rubber aging after being used for a long time. If leakage is found, it should be updated in time;

4.Avoid one-way valves and vent valves from being blocked. As a result, the temperature in the casing rises, the oil and gas fill the entire space, and cannot be discharged, which increases the pressure in the casing and increases the consumption of lubricating oil and shortens the replacement cycle. After the engine ventilation system is blocked, the movement resistance of the piston is increased, which increases fuel consumption. Due to the difference in air pressure inside and outside the box shell, oil leakage is often caused at weak seals. Therefore, it is necessary to carry out regular inspection, dredging and cleaning of the vehicle;

5.Properly solve the sealing of various oil pipe joints. The union nuts for vehicles are often disassembled and assembled, and the sliding wires are easy to break and loosen, which will cause oil leakage. Replace the union nut, use the grinding method to solve the sealing of the cone surface, and press the nut tightly to solve the sealing;

6.Avoid hub oil splashing. Too much lubricating grease in the hub bearing and cavity, or improper assembly of the oil seal, poor quality and aging failure; excessive hub temperature caused by frequent braking; loose axle nuts, etc. will cause the hub to throw oil. Therefore, the "cavity lubrication method (that is, proper amount of lubrication)" should be used to dredge the vent hole. In the use of vehicles, oil leakage failures often occur, which will directly affect the technical performance of the car, lead to waste of lubricating oil and fuel, consume power, affect the cleanliness of the car, and cause environmental pollution. Due to oil leakage and reduction of lubricating oil inside the machine, poor lubrication and insufficient cooling of the machine parts will cause early damage to the machine parts and even leave hidden dangers of accidents.

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