CBIES AUTOMOTIVE|The Exhaust Pipe Is Perforated To Leak Water, Right?

We all know that the engine will produce moisture after combustion, and the water vapor will condense to form liquid water after passing through the exhaust pipe. Some vehicles will obviously feel the sound of water accumulation in the exhaust system at the position of the main muffler after a certain mileage. , so some people would think that too much-accumulated water will accelerate the corrosion of the exhaust system, so is it reasonable to drill holes in the muffler to let the accumulated water flow out?

CBIES AUTOMOTIVE is a leading exporter of auto parts. Its main business includes the export of many parts and components including automobile exhaust pipes, side door impact bars, seat pipes, instrument measuring pipes, and many other pipe products. It has been deeply involved in the industry for decades. , not only is very familiar with the structure and performance of their own products but also has a certain knowledge reserve for automobile structure. Let's talk about whether exhaust pipe drilling is reasonable and applicable.

CBIES AUTOMOTIVE learned that the environmental protection inspection department does not allow vehicles to drill holes without permission. The exhaust pipe after drilling will have the problem of emission leakage during the annual exhaust inspection, which will have a significant impact on the emission test results, so this is also prohibited. One of the reasons for punching.

However, it is understood that some brands of vehicles will have small holes in the exhaust pipes when they leave the factory. From this point of view, is drilling really good for the volume of vehicles?

Theoretically speaking, the perforation of the exhaust pipe destroys the structure of the muffler part, which may cause problems such as loud exhaust sound, affecting exhaust performance or engine performance.

However, if you only drill a hole with a diameter of about 3MM, there is no such thing as damaging the structure. Unless the drill bit is too deep, the internal structure may be affected by a drilling error. As far as the sound is concerned, it is certain that the exhaust sound will increase after drilling, but it is not too obvious, and it will not affect the daily driving experience.

According to people in the relevant industry, after drilling, due to exposure to humid air, the speed of corrosion will increase instead. These car lovers should all know that the corrosion of the exhaust pipe by accumulated water is definitely faster than that caused by humidity, and the temperature inside the exhaust pipe is relatively high. In the absence of accumulated water, water vapor or humidity can easily be dried.

The design of the exhaust system of some models is really unreasonable, it is easy to generate water, and most of them are made of ordinary carbon steel, the corrosion rate is faster. If your car really has this situation, in order to prevent the exhaust pipe from being scrapped prematurely, Exhaust pipe punching is still worth a try.

If the new car needs to be drilled, CBIES still does not recommend it. Some models have better exhaust pipe material, which is not easy to rust and has good drainage performance. If the water cannot be drained, try drilling holes again. It is best to do an anti-rust treatment on the rear part of the exhaust system when drilling holes, and apply a little butter on the drilling position, the effect will be better.

Usually, don’t be too gentle when driving. Insufficient combustion will aggravate water accumulation. As long as the speed does not exceed the red line area, it is basically within the healthy speed range, which will not cause additional load on the engine, and high speed helps to remove carbon deposits in the cylinder. As long as it is not in the form of frequent low-gear and high-speed rotation, the impact on fuel consumption is minimal.