What is the reason for oil leakage at the oil filler port of the Baojun 730?

1 Answers
StAlex
07/25/25 5:04pm
The reason for oil leakage at the oil filler port of the Baojun 730 is poor sealing of the engine oil filler port. In this case, the sealing ring of the oil filler port needs to be replaced. It is recommended to visit a 4S dealership for replacement. The engine oil filler port symbol is very easy to identify; it is located near the engine and marked with an oil can symbol on the cap. The functions of engine oil are as follows: 1. Lubrication and friction reduction: There is rapid relative sliding between the piston and cylinder, as well as between the main shaft and bearing. To prevent excessive wear of parts, an oil film must be established between the two sliding surfaces. A sufficiently thick oil film separates the surfaces of the relatively sliding parts, thereby reducing wear. 2. Cooling: Engine oil can carry heat back to the oil tank and dissipate it into the air, helping the radiator cool the engine. 3. Cleaning: High-quality engine oil can carry carbon deposits, sludge, and worn metal particles from engine parts back to the oil tank through circulation. The flow of the lubricating oil washes away contaminants generated on the working surfaces of the parts. 4. Sealing and leakage prevention: Engine oil can form a sealing ring between the piston rings and piston, reducing gas leakage and preventing external pollutants from entering. 5. Rust and corrosion prevention: Lubricating oil can adhere to the surfaces of parts, preventing contact with water, air, acidic substances, and harmful gases. 6. Shock absorption: When the pressure at the engine cylinder port rises sharply, the load on the piston, piston skirt, connecting rod, and crankshaft bearings suddenly increases. This load is transmitted and lubricated through the bearings, cushioning the impact load.
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