UK HS code duty optimization

List of contents of this article:

• 1, About car silencer
• 2, Audi v6 engineHow to disassemble the silencer
• 3, What is the best way to make the silencer of the diesel engine smaller?
• 4 、 What should I do if the car silencer is loud?
• 5, Does the failure of the car silencer affect the engine?

About car silencer

What is the function of exhaust silencer: Function Reduce engine exhaust noise and make high-temperature exhaust gas safe and effective discharge. As a part of the exhaust pipe, the silencer should ensure smooth exhaust, small resistance and sufficient strength.

The exhaust silencer of a car is the main component of driving noise.Countries around the world have strict regulations on the limit value of noise of various vehicles, and the exhaust silencer is such a device to reduce exhaust noise. The function of the exhaust silencer is to eliminate noise by reducing and attenuating the pulsation of the exhaust pressure.

Characteristic impedance composite silencer is a silencer composed of a resistive silencer module and sound-absorbing material, which has the same characteristics of resistance silencer and resistance silencer. It has an effective actual effect on low, medium and high frequency noise. It reduces the exhaust pipe noise of the car engine, and can safely and reasonably discharge high-temperature organic exhaust gas.

Audi v6 engine How to disassemble the silencer

Lift the Audi q5 car with a jack and use a support frame to fix the car stably. Find the rear silencer at the bottom of the Audi Q5, find the bolts connecting the silencer, and use a wrench to loosen these bolts to remove the rear silencer.

Screw the screw to remove the silencer rubber skin. The rubber skin fixing pin, unscrew the two screws of the screw joint so that the rubber skin shock-absorbing fixing pin can be removed. You can remove the rubber skin of the silencer, which is very easy.

First, prepare the tools needed for disassembly, change a cone, a t-20 spline, a t-30 spline, and then enter the demolition process.

Hello, this is quite troublesome. It is recommended to go to the repair shop for disassembly and maintenance [If there is a problem with the car, ask the car master. 4S store professional technician, 10 minutes to solve.

Disconnect and remove the post-heating oxygen sensor. Remove the front exhaust pipe nut and washer from the catalytic converter. Remove the front and lower exhaust pipe brackets. Remove the front exhaust pipe from the front upper exhaust pipe mounting bracket. Remove the front exhaust pipe from the rubber ring at the junction of the front exhaust pipe flange and the third silencer flange.

What is the best way to make the silencer of the diesel engine smaller?

1. Solution: Find a professional auto repairer to help clean up the accumulated carbon and check whether the spark plug needs to be replaced.

2. The computer room is insulated. After the exhaust noise and cooling fan noise of the unit are reduced, the remaining main noise sources are diesel engine mechanical noise and combustion noise.

3. [Pacific Automobile Network] The emission reducer made of rubber with better elasticity can reduce the vibration sound; the exhaust sound is caused by the combustion of diesel in the cylinder. A silencer with a better silencer effect can be replaced. If conditions permit, directing the silencer to a place away from people can reduce the exhaust sound.

What should I do if the car silencer is loud?

It is recommended to go to the repair shop for inspection and replacement.The silencer of the car is broken, and there will be noise. The solution is as follows: to judge whether it is the noise inside the silencer or the resonance sound of the outside and the body. If it is internal noise, replace the new silencer. If it is external noise, pay attention to check the bulge of the exhaust pipe and replace it with a new one if necessary.

If only the tail row is modified, the sound will only be loud but there will be no "sound wave".

Block the exhaust hole at the tail a little smaller, and it's better to change it back with a significant effect. It mainly uses porous sound-absorbing materials to reduce noise. Fixing the sound-absorbing material on the inner wall of the air flow channel or arranging it in the pipe in a certain way constitutes a resistance silencer.

First of all, judge whether it is the internal sound of the silencer or the resonance sound from the outside and the car body.

There are only two reasons: the noise becomes louder due to the serious deformation of the link pipe or joint caused by dragging the bottom.The silencer directly breaks and leaks air after dragging the bottom.

Does the failure of the car silencer affect the engine?

1. The impact of the failure of the exhaust pipe silencer is as follows: the failure of the car silencer will cause the sound of the car engine to increase.

2. Car silencers are usually used to reduce engine noise transmitted outside the car. If the silencer is damaged, the sound waves emitted by the car cannot be silenced, and the engine noise cannot be controlled, resulting in greater noise, affecting the safety and comfort of driving. Therefore, it is very necessary to replace the damaged mupper in time.

3. Then the silencer is broken, the sound waves emitted by the car cannot be reduced, and the engine sound cannot be shielded, resulting in an increase in the engine sound.The effects of exhaust pipe breakage are as follows: 1. The rupture of the car silencer will cause the sound of the car engine to increase.

4. At low speed, it will affect the performance of the engine, because the damage of the silencer directly changes the low-speed return pressure of the engine. At this time, the low-speed torque will lose a lot. The specific performance loss depends on the instrument to know the specific data. The above is an old friend of mine who has been operating car modification and car repair for many years. I hope it will be useful to you.