There are many stories on the Internet about how an old catalytic converter fell off, resulting in damage to a car engine. How real are such stories, why is a catalyst needed in a car at all, and what are the disadvantages of this important part? Let's try to answer all the questions that concern motorists.
1. What is a catalytic converter for?
Everything is very simple. The catalytic converter (KN) on cars is needed to afterburn the most harmful and dangerous exhaust gases. In fact, its only purpose is at least some protection of the environment. In Europe, cars have been required to be fitted with a catalytic converter since 1975. At its core, it's just a ceramic-coated metal pipe installed in a car's exhaust system. During operation, the catalytic converter heats up to 800 degrees, which allows the muffler to break down the most dangerous aromatic CO2 compounds.
2. Does the catalytic converter have any real disadvantages?
Yes, there are, but on the general background they are insignificant. Any catalytic converter reduces the power of the car's engine. True, the drop in horsepower is hardly noticeable, since it is 2-3%. For the vast majority of consumer, non-professional vehicles, the benefit of a catalytic converter is much larger and more important than the power of the power plant. All other problems of KN, including “shedding of ceramics” with its subsequent entry into the engine, are far-fetched and greatly exaggerated.
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3. Why not remove the catalytic converter?
Because the often voiced problem that KN is supposedly capable of ruining the engine is far-fetched. If something happens with the old catalyst, it is always due to some other reason. And most often, the motorist himself will be to blame for the breakdown. To date, there is no convincing evidence that would indicate that it is crumbled catalyst causes a breakdown of the power plant or the appearance of any other problems with engine. Rhetorical question: how is crumbling ceramics from the exhaust system supposed to get into the engine cylinders?
4. Why does anyone even advise outright stupidity?
Firstly, horror stories about crumbling catalysts are already self-reproducing simply by “going to the people”. Secondly, they are actively repeated by bloggers, mostly using unverified information. Thirdly, the removal of catalytic converters is beneficial to artisanal workshops, which are often involved in the sale of spare parts, including the sale of catalysts, which cost decent money. After all, in 9.5 out of 10 cases, the cut off KN is not given to the owner.
In continuation of the topic, read about is it worth driving in winter on alloy wheels - pluses and cons of such a ride.
Source: https://novate.ru/blogs/110122/61817/