What s going on with the leaking exhaust pipe?

Repair method of exhaust pipe leak:

1. If the exhaust pipe of the car is leaking, you can try to replace the interface pad first, because the air leakage may be caused by the aging of the interface pad. However, when it doesn't work after changing several interface pads, it needs to be double-checked;

2. It was found that the interface of the front exhaust pipe (exhaust manifold) had been deformed, and some small pits had appeared convex and concave. If the entire exhaust manifold is replaced, not only is it expensive to repair and the delay is long, but it is often necessary to replace the intake and exhaust manifold gaskets. In order to save costs for the owner and solve the problem as soon as possible, the method of winding copper wire at the interface can be used in maintenance to plug the loophole of the exhaust pipe and eliminate the abnormal noise of the engine when running.

from the old cable line.

A section of copper wire is cut off in the middle, and it is wound into a circle at the interface pad, like a hand-woven straw hat in the past. The inner ring is a little tighter, and the outer ring is a little larger and thicker than the interface pad. After installation, tighten the exhaust pipe bolt when the car is hot, and the abnormal sound of the exhaust pipe will be completely eliminated;

3. By using copper wire to connect with the interface pad, tighten the exhaust pipe interface gasket screw at high temperature when the car is hot, make up for the loophole of the exhaust manifold, enrich the gap of the exhaust manifold, and greatly improve the sealing performance of the interface. In this way, there are many ways to join other items and seals in order to improve sealing performance. For example:

In order to prevent oil leakage of the oil seal, wrap cotton thread or viscose at the interface; In order to prevent fluorine leakage from the air conditioner, wrap elastic tape around the end of the interface nut; In order to prevent oil leakage from the valve chamber cover, a film is applied to the upper end of the cylinder head.

If the exhaust pipe is leaking, then you belong to this fault, that is, this must be repaired in time, you can go to the 4S shop or to the maintenance factory to repair it.

The exhaust pipe of the vehicle is leaking, indicating that the exhaust pipe is aging and broken, which will cause a strange sound, which sounds scary, just change the exhaust pipe.

The reason for the exhaust pipe leakage is that there is a crack in the exhaust pipe, or there is a gap in the connection of the exhaust pipe, which causes an air leak, and we need to reconnect it or weld it to repair.

Engine tempering, also known as "backfilling". To put it simply, it refers to a fault phenomenon in which the combustion mixture fails to be discharged from the combustion chamber in time before and after the exhaust stroke, but runs to the intake pipe through the intake valve and ignites part of the fresh mixture, accompanied by a "bang" abnormal sound. In addition to the presence of abnormal noises, it is also manifested as a decrease in engine power and a shrug when accelerating.

It's broken, it's broken, it's going to be replaced,

The exhaust pipe of the car leaks is generally caused by loose or falling off the interface screws of the exhaust pipe, damage to the sealing gasket of the exhaust pipe interface, leakage of the exhaust pipe due to corrosion, rust, broken holes, loose exhaust pipe joints, or falling off and leaking. Check these aspects to find the specific cause of the failure, and then deal with it as appropriate, repair or replace the problematic part.

The exhaust pipe leakage depends on where the leak is in the exhaust pipe, and if the leak is in the tail section, it has no effect. If the front section is leaked, it will lead to a decrease in exhaust back pressure, a decrease in torque at low speeds, and a weak start, which will indirectly increase fuel consumption. But at high speeds, the power increases due to the smoother exhaust.

1. The gas discharged from the exhaust pipe should have no color, but if you see white smoke, black smoke, and blue smoke coming out of the exhaust pipe, it is likely to be a sign of engine failure.

2. If it is only a little white smoke in winter, it is generally just condensation water vapor, which is a normal situation. However, if there is a large amount of white smoke, it is caused by the engine cylinder and water channel, the cooling water enters the inside of the engine, and is heated into water vapor discharge, at which time the engine is high temperature and acceleration fatigue, which is likely to cause major damage to the engine.

3. If it is blue smoke, it is caused by the oil jumping into the engine, which is commonly known as "burning engine oil". At this time, the acceleration ability of the engine decreases, the noise becomes louder, and the cylinder wall will wear out over time, and in severe cases, the entire engine will be damaged.

What should I do if the exhaust pipe is leaking? The first reaction of many car owners is to change! Replacing it does solve the problem, but a leaking exhaust pipe isn't a big deal, and replacing the entire exhaust pipe for this seems a bit wasteful.

And the replacement of analogues is still not durable, not to mention the cost of replacing the original parts, sometimes you spend a lot of money and may not be able to buy the real one. Here I will share with you a few ways to repair the exhaust pipe.

1. Aluminum foil.

Exhaust pipe leakage, is it easier to detect exhaust gas? Inspection station: You want to be beautiful.

This is the easiest way to do this, just wrap the air leak in aluminum foil. This method is easy to operate, but it is not long-lasting. It is suitable for temporary exhaust gas detection.

2. Welding. Exhaust pipe leakage, is it easier to detect exhaust gas? Inspection station: You want to be beautiful.

This method is suitable for repairing air leaks at the junction of the exhaust pipe, such as at the interface between the pipe and the muffler. Because the exhaust pipe wall is very thin, the high temperature during electric welding can easily burn the exhaust pipe through. The interface is often thick enough to withstand the high temperatures of welding.

3. Clip iron sheet.

Exhaust pipe leakage, is it easier to detect exhaust gas? Inspection station: You want to be beautiful.

This method is also very simple, find a can, cut out a patch that is larger than the hole, wrap the air leak, and then fix it to the exhaust pipe with clips.

4. Grafting.

Exhaust pipe leakage, is it easier to detect exhaust gas? Inspection station: You want to be beautiful.

This is a more technical method and is very difficult. Cut off the badly damaged part of the exhaust pipe directly, and then find a metal pipe of the same thickness to weld it. This method works best and is durable. The disadvantage is that it is too complex and difficult to operate.

If your exhaust pipe is leaking, then be sure to try these methods.

If the exhaust pipe is leaking, you can try to replace the interface pad first, because the air leakage may be caused by the aging of the interface pad. However, when it doesn't work after changing several interface pads, it needs to be double-checked; Automobile exhaust bellows, also known as automobile exhaust hose, is installed in the exhaust pipe between the engine exhaust manifold and the muffler, so that the entire exhaust system is flexibly connected, so as to play a role in vibration and noise reduction, convenient installation and prolonging the life of the exhaust noise reduction system.

How to make up for car exhaust pipe leakage? Foreigners practice, but there is a hole to pay attention to!

Exhaust pipe leakage has an impact on fuel consumption, but if it is not a supercharger, it is a reduction in fuel consumption. Jinbei van does not use a supercharged generator, so it has no direct impact on fuel consumption. The noise is relatively loud, it is recommended to repair it, because there are many electrical appliances near the interface, and high-temperature gas leakage will have an impact on these electrical appliances, and may even cause fire.

Exhaust pipe leakage will affect the power of the car and increase the fuel consumption of the car. Exhaust pipe leakage has a greater impact on turbocharged vehicles and less on naturally aspirated vehicles. Leaking exhaust pipes can also exacerbate the noise of the car.

If the front exhaust pipe leaks, it will cause the exhaust back pressure to decrease, making the car engine have no digging force and it will be difficult to start. At the same time, it will increase fuel consumption. If there is a leak in the middle of the exhaust pipe, the water generated by the exhaust pipe will corrode the exhaust pipe for a long time, and the exhaust pipe will rust over time.

If the tail is leaking, it has no effect on the car. It is advisable to repair the anterior and middle sections in a timely manner. If the trauma is severe, it can cause the exhaust pipe to rupture.

When the exhaust pipe is leaking, it is not feasible to repair it with fluid alone. After all, if the temperature of the exhaust pipe is too high, the adhesion ability of the colloid decreases. After a long time, it will still leak.

As for how to fix the air leak, if it is only because there is an opening outside, then repair it by welding. If there is corrosion inside, a new exhaust pipe needs to be replaced.

In addition, common faults in exhaust pipes include drainage, smoke exhaust, etc. Generally, exhaust pipe drainage is a normal phenomenon, which proves that the engine fuel of the car is fully combusted, and water will be generated in contact with the outside air. If a large amount of water is drained, it may be that the exhaust pipe is waterlogged, and Nasanhong should be dealt with in time.

Generally, the exhaust of the engine smoke is common in diesel engines, because the diesel injected into the cylinder is discharged without full combustion, or the cooling water enters the combustion chamber.