Aerospace quality constant transport lubrication
- Beijing Tianlong Glencore Petroleum Technology Co., LTD
- Service hotline：400-877-6108
- Address: No.19, Deshanli, Changxin Store, Fengtai District, Beijing
Aerospace quality constant transport lubrication
The loud noise of the car engine will not only make the driver irritable, but also may be a precursor to the car's problems. Today, Xiaobian and the big guys will study why the car engine will be noisy, and how to solve these problems.
One: the engine is noisy when it is cold started
When the car is started after being parked for a long time, the engine will produce a violent vibration, and then make a "rattling" noise. Because after the car is parked for a long time, the lubricating oil basically all flows to the oil pan, and the oil pump cannot establish oil pressure immediately when the cold car starts, especially the valve inside the cylinder head, and the hydraulic tappet and mechanical rocker arm cannot get enough lubrication when the cold car starts, leading to the rattling sound.
Solution: The noise at this time is normal, when the engine starts for a while, the engine will return to normal, there is no longer a violent noise.
Two: The oil condition is wrong
Oil is an important component of engine lubrication, when the oil problems will affect the operation of the engine. When the viscosity of the oil is too high, it is easy to cause problems in the operation of the engine, and the lubrication effect is poor, resulting in friction during the operation of the engine, resulting in noise.
Solution: In the face of such a situation, you only need to change the oil.
Three: the belt tightness is not enough
When the tightness of the engine belt is not enough, the engine will produce a squeaky sharp noise in the work, which seriously affects the driver's driving experience.
Solution: In the face of such a situation, adjusting the tightness of the engine belt can avoid noise.
Four: There is leakage in the inlet and exhaust pipe
When there is a leak in the intake and exhaust pipe, when starting the engine, the gas will leak from the leak during the intake and exhaust, resulting in vibration and noise.
Solution: In the face of such a situation, it is necessary to check the inlet and exhaust pipe, and replace the inlet and exhaust pipe to avoid noise.
Five: poor fuel quality
When poor quality fuel is used, the combustion situation in the engine will become worse, which will cause the engine to produce violent vibration and noise.
Solution: In the face of such a situation, replace the better quality label with a higher one and then you can avoid the noise.
Six: Abnormal engine noise
The screw of the lower protection plate of the engine is loose, the engine can not be fixed, and it will shake violently during work and produce noise. This is a more common minor fault, tighten or adjust the engine lower guard plate screws, it is OK.
Engine claw pad aging. The claw pad plays the role of supporting the engine, and when it is aging, it can not work normally, and it can not be repaired at this time, and it can only be replaced with a new claw pad.
Engine "backfire" failure. When the valve of the engine has too much carbon or the timing is not adjusted correctly, the engine will have a "pupupupupu" sound, this time to clean the valve carbon deposit and adjust the valve timing.
Seven: Loose plastic parts in the engine compartment
There are many plastic parts in the engine compartment, such as the engine cover plate, intake pipe, etc., when they are loose, they will collide with the engine compartment in the engine studio, which will produce noise, and this time fastening can avoid noise.
In addition to the above, there is a very common and practical way to reduce engine noise, that is to install sound insulation cotton.
Engine noise is mainly transmitted to the cab through the hood, front fender and other vibrations. Therefore, some advanced sound-absorbing foam materials can be added to the engine cover, which can not only suppress the vibration caused by the hood, but also absorb a lot of noise, which is very effective.
As above, the engine noise is a few main reasons and feasible solutions, when the car has a problem, it is recommended that the first time to solve, so as not to accumulate into a major failure, not only driving unsafe, also uncomfortable but also expensive.