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Say goodbye to turbocharger oil

Time: 2018-11-17

Burning oil is almost the pain point of most driver masters, but all cars can't escape the fate of engine oil consumption, and the "excessive" oil consumption will bring serious damage to the engine. Turbocharger oil is one of the main culprits in causing "excessive" consumption of oil. So why is the supercharger licking the oil?


First of all, we need to understand that not all oil consumption is called cooking oil. Because the engine itself can not fundamentally eliminate the consumption of oil. It's like a greasy plate or bowl. If you use a spoon to scrape it, the oil will never be cleaned. This is the same as the oil ring on the piston, which will never scratch the oil on the cylinder wall.


Reason one: insufficient lubrication, causing supercharger failure


Today we mainly talk about the "squeeze oil" caused by the damage of the turbocharger itself. First of all, for experienced drivers, they usually wait a minute or two before the vehicle is turned off. The novice is turning off the fire, but it does not know that this will cause chronic damage to the turbocharger. When the turbocharger is running at high speed, the speed easily exceeds tens of thousands of revolutions. The middle turbine rotor shaft is a precision component that needs to bear tens of thousands of revolutions and high temperature. The function of the oil is to establish an oil film between the rotor shaft and the casing to achieve lubrication and heat dissipation.


When the diesel engine is working normally, the supercharger speed and temperature are extremely high. If the engine is directly turned off, the oil pump will stop working directly, and the supercharger has a slow process. The middle case and the rotor shaft will have a semi-dry friction phenomenon, which will easily lead to early signs of wear of the turbocharger. As a result, the rotor shaft and the oil seal are damaged, causing the turbocharger to oil.


Reason two: the oil is not clean, wear supercharger


If the impurity density is too large in the oil, the hard particles in it will scratch the casing and the seal ring, causing early damage to the turbocharger. If the rotor shaft appears and the oil seals wear out early, the high-speed turbocharger will directly take the oil out of the shell, even directly from the intake system to the engine to participate in the combustion, resulting in power loss, the vehicle appears blue smoke The situation, as for the harm we will talk about later.


Reason three: excessive intake and exhaust resistance leads to oil leakage


During the inspection and maintenance process, we may have seen the phenomenon of “sucking” at the front end of the intake pipe. In fact, this phenomenon is also one of the reasons for turbocharger oil. Excessive engine intake or exhaust resistance can cause a momentary vacuum between the compressor and the turbocharger housing. If the oil seal shows signs of early wear, the oil is easily "sucked out" to the compressor (intake side) position and directly enters the engine through the intercooling system.


Normally, turbochargers can be judged by observation if the oil is used. If the turbocharger is seriously leaking oil, it will directly take away a lot of oil, and even the case of draining the oil in minutes has occurred. In serious cases, the engine will pull the cylinder and burn the shaft. And so on. In the process of our daily car maintenance, there are many glitches that can be completely solved by daily inspection and maintenance. However, many people have neglected some links and lost more than they got. Although the truck is not as expensive as a car, even the Transformers have armpits. The car is like a friend around you. If you are good to him, he will never give you a chain at a crucial moment.

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