What Causes the Metallic Knocking Sound in the Exhaust Pipe?
1 Answers
The metallic knocking sound in the exhaust pipe is caused by a lean air-fuel mixture. Here is an introduction to car exhaust pipes: 1. Definition: The car exhaust bellows, also known as the car exhaust flexible pipe, is installed in the exhaust pipe between the engine exhaust manifold and the muffler. It provides a flexible connection for the entire exhaust system, thereby reducing vibration and noise, facilitating installation, and extending the service life of the exhaust muffler system. 2. Material selection: Ferritic stainless steel has a small thermal expansion coefficient, high thermal conductivity, excellent resistance to high-temperature oxidation under repeated heating and cooling conditions, and good pitting corrosion resistance.