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There are many types of abnormal engine noises, and the sounds are more complex, but there are certain rules for each abnormal noise.
1. Abnormal noise caused by too large matching gap. Fitting clearance is an important item in the quality of automotive assembly. When lubrication, temperature, load and speed are constant, the abnormal sound will become more obvious with the increase of the fitting clearance, and some parts of the engine will become larger due to wear and tear to cause abnormal noise, such as the knocking sound of the piston and cylinder wall, the impact sound of the connecting rod bearing and the shaft journal, etc.
2. Abnormal noise caused by poor lubrication. Lubrication is an important prerequisite for the normal operation of the engine, the lubrication system can make the lubrication cool cleaning seal and rust prevention, when the clearance, temperature, load and speed are constant, the thickness of the lubricating oil film is affected by the pressure of the lubricating system and the quality of the lubricating oil, if the lubricating oil quality is good and the pressure is suitable, it will produce a good lubricating oil film, so the thicker the lubricating oil film, the smaller the mechanical impact, it is not easy to make abnormal noise. Otherwise, it will lead to an increase in abrasion force, and abnormal noise will occur and be clearly clear.
3. Abnormal noise caused by unfastened and loose fasteners. The vibration generated during the operation of the engine causes some parts to loosen, resulting in the phenomenon of impact sound. For example, the flywheel fixing bolt is not tight, the connecting rod bolt is not tight, etc.
4. The piston pin and the connecting rod bushing are matched, the piston pin seat hole is loose, and the two ends of the piston pin collide with the piston pin snap ring.
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According to the principle of engine work, I think this master should be talking about pistons. The engine crankshaft drives the piston to move in order to generate power. People in different places have different names for different parts of the vehicle, but the written word is the same.
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1.The cam is worn excessively, and the tappet jumps during operation; 2.Excessive valve clearance due to wear or improper adjustment of the valve stem end and adjustment screw or rocker arm causes the swing arm head of the overhead valve to collide with the top of the valve; 3.
excessive carbon deposition in the valve guide; 4.The valve spring seat falls off; 5.Hydraulic tappets or tappets are damaged.
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Eggs laid by fish. Dump: shuǎi.
From use, from the squirrel. Chi Qu's concealed fugitives' self-hiding is the paradigm of the squirrel. Executability is the paradigm of use.
Superposition of two paradigms with and sting. It can be carried out and it is the paradigm of rejection to make it late and hide itself.
Commonly used phrasesShake your hands and feet, shake your hands, shake your hands, shake your sleeves, shake your pen. Don't shake off, shake off, shake off the car, shake off, shake the head, shake the face.
Throwing off the sale, throwing off, gossiping, throwing off the arms, throwing off the hands and flies.
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This is a dialect unique to the region. It is also equivalent to blaming others for people who are not familiar with them, and people who do not speak to the point and have no opinions. To the familiar person is: belonging to the bad words between friends, jokes.
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In Jiangsu Province, slurs usually refer to people who speak incoherently and have no opinions....
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You first check whether the rubber of the large bracket is finished, sometimes it is there ringing, if not, the rear spinning wheel rings, go to the after-sales service, let them open the bowl of the rear spinning wheel for you, pour the powder grinding inside and then gently polish it with fine sandpaper, combined with the friction plate to grind less. If you don't fix it, it won't ring after a while, and you can deal with it when the rear spinning wheel slips.
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Drive to the place where the car is sold and check the warranty anyway.
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Is it a flicker in the rear beam clutch? Old burning.
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What is a sling? What is the specific ** name? Does it refer to the Pure Heart Jasper Flute?
Idle squeaks are likely to be clutch or disengagement bearings. The landlord said that when he stepped on the clutch, it was gone, and it was likely that the disseparating bearing was worn. I haven't changed it, but it may be a bit of a lot of man-hours to dismantle something.
I believe that many car owners will encounter such a problem after maintenance, after routine maintenance, the engine sound is louder or abnormal than before maintenance, and the staff will generally tell you that this is a psychological problem. However, there are many reasons for the loud engine sound, and today we will talk about what causes the engine to make abnormal noise or louder sound after maintenance. >>>More
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