Parking throttles harm more than idle speed protection engine

[Xiagong Chusheng original] There was a post about “Why some people will step on the throttle when they parked, then turn off the flames”. The discussion was rather enthusiastic. Many of the card friends also pointed out that they now have superchargers. The truck’s manual clearly stated that it was erroneous to idly run for a few minutes before parking and to step on a few feet before stopping.

However, Xiao Bian also found that there are still some card readers who still have some misunderstandings. Xiao Bian here will simply sort out this topic.

● Why stop booming? Most of the old habits of the gasoline era

Most of the card's friends in the post thought that the parking boom was a bad thing. This is actually an old habit brought by some old drivers. Because in the era of petrol cars, carburetor vehicles have poor atomization, affecting the start of the next day, so they will step on the gas pedal before the flameout to allow some of the carburetor to remain out of flame, and will remain in the flame at the next launch. The gas mixture in the oiler can be introduced into the cylinder, making it easier to start the vehicle!

Friends of the card "crankshaft": The old master passed down, the previous diesel cars are few, many gasoline cars, the quality of the petrol pump is also very poor, if you do not turn off the oil before the flameout, it will be very difficult to launch the next time.

● Modern diesel engine: Do not drive away, do not turn off immediately

But now the times are different, and the carburetor period is over. Now the trucks are basically diesel engines with turbochargers. We know that turbochargers operate at very high speeds and require good lubrication.

How to operate the vehicle with a turbocharger, Karyou "Persistence 1989" in the reply post explained in great detail, 1 Do not go by car, 2 Do not turn off immediately

1 Do not leave by car: After the engine is started, especially in winter, it should be allowed to idle for a period of time so that the lubricant can lubricate the bearing sufficiently before the supercharger rotor runs at a high speed. Therefore, after the start, you must not bang the throttle to prevent damage to the booster seal.

2 Do not turn off the flame immediately: After the engine runs at a high speed for a long time, it cannot be turned off immediately. When the engine is operating, a portion of the oil is supplied to the turbocharger rotor bearings for lubrication and for cooling. When the running engine suddenly stops, the oil pressure drops rapidly to zero, the high temperature of the turbine part of the supercharger is transmitted to the middle, the heat in the bearing support shell cannot be rapidly taken away, and at the same time, the supercharger rotor still rotates under inertia and rotates at high speed. Therefore, if the engine suddenly shuts down in the hot engine state, it will cause the oil in the turbocharger to overheat and damage the bearings and the shaft. In particular, it is necessary to prevent sudden flameout after a few feet of throttle!

● The convoy is expressly prohibited to prevent injury

Today's truck drivers basically know the dangers of doing so, and some transportation companies have even made express rules prohibiting such operations to prevent injuries to vehicles.

Friends of the card "blue GM": also seen a lot of old drivers like this, the company later issued an ordinance, parking bombers throttled, withholding bonuses 200. ”

Card friend "hanbing6166": There are now many vehicle and unit regulations. When the car was started and the throttle was turned off, it was found to be straight.

● Compilation: Get rid of bad habits and protect the engine

Speaking of this, I believe that everyone should have a correct understanding of the “parking foot throttle”. Many drivers in the forum post replied that they also had this habit, and there was no special reason. Xiaobian suggested that everyone should change it. Change these habits. Correct operation and good habits are also a protection for the engine and prolong its service life.

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