What is the cause of Ruifeng engine idling vibration?

Introduction What is the reason for the Refeng engine idle jitter? Reasons for Refeng engine jitter at idle include the car's spark plug gap being too large or the pressure in the car's cylinders being insufficient.

What is the cause of Ruifeng engine idling vibration?

The reasons why the Ruifeng engine vibrates at idle include the car's spark plug gap too large, or the pressure in the car's cylinders is insufficient, or the injector does not inject fuel , or the fixed shoes of the car engine caused by loosening. The car can adjust the idle speed by adjusting the size of the air valve. The idling speed of the engine is called engine idle speed. When the engine is running and the accelerator pedal is released, it is easy to cause engine wear when idling. However, when the engine is running without a compound, it only needs to overcome the frictional resistance of the internal components. and not produce energy to the outside world. The idle speed of an engine with excellent working performance is generally 550-800 rpm. When there is a problem with the car's idling speed, the engine willu noise. Idle vibrations are usually caused by carbon deposits. Just find the precise location and clean it.

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There are three main reasons for car vibrations at idle. The solution is to first use the elimination method to discover the problem.

The driving environment and the primary operating condition of the vehicle determine that the most likely cause of idle vibration in a pickup truck is not carbon deposition, but engine rubber and the ignition system.

Take Wuling Rongguang V as an example. This car is a front-wheel drive and rear-wheel drive vehicle. The engine layout is no different from ordinary rear-wheel drive cars. , the vehicle positioning is not high, and the engine has a maximum displacement of only 1.5L. The characteristic of using thecar is that it gets power through frequent throttle and high speed.

The stage where engine carbon deposits are most likely to form is the ten minutes between a cold start and when the engine temperature is sufficiently high. If a van is fully loaded or loaded with goods, it starts. at high speed to obtain significant torque. When carbon deposits are formed, the high pressure exhaust formed by the high rotation in the primary stage will effectively clean the carbon deposits, so the carbon deposits in the van are generally not very serious, the problem must therefore be verified from the other two points.

The first point is the rubber of the motor foot. The motor and the frame are not rigidly connected, but are softly connected to the motor by the rubber of the rubber foot; the vibrations generated duringnt the operation of the engine will pass through the rubber; . Due to its thickness and elastic filtering, the vibration feedback on the frame will be very low, if any.

However, the rubber pads on the machine feet will age, harden and become brittle under the high temperature and weather environment of the engine compartment once the rubber pads no longer have capacity reasonable vibration filtering or will be even. crushed, vibrations during engine operation will be directly transmitted to the chassis and then transmitted to the interior of the body. While driving, the engine running at high revs will alleviate unbalanced vibrations to some extent, so it is not obvious. . The accessories used in the van are not of high quality, and the driving environment is poor. The probability that the rubber of the machine foot is endamaged is relatively high, so the machine feet should be checked first.

The second point concerns the engine's ignition system, including the ignition coils and spark plugs; leaking ignition coil will cause cylinder shortage, engine shudder, loss of power, and increased spark plug carbon deposits or reduced discharge capacity; cause a high misfire rate. As a result, the oil and gas mixture cannot be ignited effectively, which will also cause engine vibration and reduced power.

Inspecting the ignition system is relatively simple. Use a multimeter to test for leaks. If there is no electricity leak, it is best to test the spark plug capacity separately; The main reasons that can cause jitter at idle are these two points, followed byby the long-term use of cars in cities with frequent traffic jams and the habit of hot cars, which will cause greater carbon deposits in the engine. You can judge whether it is caused by carbon deposits based on your own driving habits for reference.

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