Burning engine oil！Emitting blue smoke！Don't worry, it's possible that this small component is broken

      In daily life, we often hear the term "burning engine oil". There are many reasons for burning engine oil, and the most common one is that the aging of the valve oil seal leads to "burning engine oil"

Definition: Valve oil seal

     The function of valve oil seal is to prevent engine oil from entering the intake and exhaust pipes, prevent oil loss, prevent the mixture of gasoline and air and exhaust gas leakage, and prevent engine oil from entering the combustion chamber. Valve oil seal is one of the important components of engine valve assembly

If the oil seal is broken, the engine will exhibit the following symptoms:

1. The engine burns oil and emits blue smoke.

2. Severe carbon buildup on spark plugs leads to a decrease in engine power.

3. The decrease in sealing results in insufficient cylinder pressure and a decrease in engine power.

4. The accelerated consumption of engine oil can directly cause the engine to explode due to lubrication and cooling failure in severe cases.

So how should the valve oil seal be checked?

      Checking the valve oil seal is relatively more complicated. It is recommended that you go to a professional and legitimate store for inspection ‼️

The valve oil seal must be checked in a cold state. Check for oil on the back of the valve through an endoscope when the car is cold. If there is ‼️ Most likely, there is a problem with the valve oil seal.

Why is it reminded to conduct a cold car inspection?

      The principle of thermal expansion and contraction is that when the engine oil has completely cooled down, a few drops of oil dripping on the back of the valve indicate that there is a problem with the valve. It is almost impossible to check the valve oil seal in a hot car state.

Reasons for aging and oil leakage of valve oil seals

1.During installation, foreign objects and dust enter the pipeline, causing seal damage and oil leakage.

2. Poor assembly leads to seal damage, resulting in oil leakage.

3. Incorrect sealing installation direction leads to oil leakage.

4.If the lip grease of the oil seal is gone, dry friction will occur, and mechanical wear will quickly smooth out the teeth.

5. The oil seal and the rotating shaft are not aligned, resulting in uneven wear and abnormal lip wear.

6. The tightness of the spring does not meet the process requirements. If it is too tight, it will cause the oil seal to have improper fit with the rotating shaft and abnormal wear; When it is too loose, it can cause the pressure to be too low to tighten, thus failing to achieve the sealing effect.

Small parts, but installation is important ‼️

The valve oil seal is a relatively small component and is generally not expensive.

The quality of accessories and the experience of maintenance technicians are both very important. If the quality of accessories is poor and the installation is not in place, the valve oil seal will not last long and will break again.

Maintenance Tips

If the valve oil seal is damaged, it is necessary to go to a professional and legitimate car repair shop for repair and replacement. At the same time, it is important to have a basic understanding to avoid being deceived by unscrupulous merchants ‼️