Does the valve oil seal of diesel pickup truck emit blue smoke when burning engine oil?

The valve oil seal can prevent engine oil from entering the intake and exhaust pipes, causing engine oil loss, preventing the mixture of gasoline and air and waste gas from leaking, and preventing engine oil from entering the combustion chamber. Valve oil seal is one of the important parts of engine valve group, which is in contact with gasoline and engine oil at high temperature. Therefore, materials with excellent heat and oil resistance should be used, and fluororubber is generally used.

However, rubber parts will lose their plasticizer with the passage of time under the influence of the change of working temperature. As a result, the seal will first shrink, then harden, and finally even break, resulting in poor seal, which will lead to engine oil entering the combustion chamber for combustion, that is, burning engine oil.

In practice, the fracture of valve oil seal is rare, and it is more oil burning caused by corrosion and aging. Once the cold car emits blue smoke, it is generally a problem with the valve oil seal. Traditionally, it is solved by disassembling and repairing the valve oil seal, but disassembling and repairing is time-consuming, laborious and expensive, and sometimes there are more other problems due to uncertain factors such as parts quality, technology and assembly process.

Therefore, the best way to solve the corrosion and aging of valve oil seal is not disassembly and repair. I hope I can help you!