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What"s the matter with turbocharged engine burning oil?
In the process of engine design and manufacturing, some gaps are reserved between various parts, between piston and cylinder, so as to avoid extrusion and damage of parts after high temperature expansion. When the engine is started, when the water temperature and engine temperature are still relatively low, a small part of the oil will flow into the combustion chamber through these gaps, resulting in oil burning.
Similarly, in order to reduce friction and ensure the high-speed operation of the turbine, the lubricated oil seal of this part cannot be too tight. Therefore, a small amount of oil will enter the turbine at both ends through the oil seal, and then enter the inlet pipe and exhaust pipe, resulting in oil burning.
Avoid oil burning in turbocharged engines
1. Select high quality lubricating oil
Generally, the turbocharger will not start until the engine speed reaches 3500 rpm, and it will increase rapidly until 6000 rpm. The higher the engine speed, the stronger the shear resistance of the oil is required. Only in this way can the lubricating capacity of engine oil not decrease at high speed. Therefore, when selecting engine oil, high-quality engine oil should be selected, such as fully synthetic engine oil.
2. Maintain on time and replace regularly
In fact, a large number of turbine cars burn engine oil because the owner does not change the engine oil on time or uses inferior engine oil, resulting in the failure of normal lubrication and heat dissipation of the floating turbine main rotating shaft, and the damage of the seal between the turbocharger and the intake pipe, resulting in oil leakage. Therefore, be sure to check the turbocharger during maintenance.
Including the tightness of the turbocharger sealing ring, oil leakage at the lubricating oil pipe and joint, abnormal noise and abnormal vibration of the turbocharger, etc.