Welding a muffler with his own hands

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2020-01-23 22:00:14

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Even the quiet engine during operation produces significant vibration. In particular, it is the sound vibrations. The exhaust gases tend as soon as possible to escape to the outside. Therefore, in the system there is a noise. To subtract, and modify, the vehicle has the exhaust system. It includes a set of elements. This is the exhaust manifold, resonator, corrugation, as well as the muffler. The latest and performs the basic function of damping acoustic vibrations. But over time the item wears out. Why so happens and how to repair muffler own hands by welding, consider in our today's article.

Symptoms

How to determine the need for repair of this item? It's very simple – during engine operation you will hear a typical sound output of the exhaust gas. It will be very loud, sometimes whistling. weld repair of mufflerAlso part of the exhaust gases can leak into the cabin (in this case, you need more welding of the corrugation muffler). The smoke will not dissipate from the exhaust pipe and from the bottom, and from different sides. Thus, if the muffler started to behave this way, then he warmed up or rusty. Experts recommend a complete replacement of the item. However, a cheaper way – welding the muffler with his own hands.

Causes

Usually the life of the element is not more than two or three years. Why is he so little? It's all in the conditions. The muffler from the first day of work is high stress. So, the element is exposed to moisture, salts outside and heat inside. Changes in the heat is just tremendous. Of course, neither single metal such loads will not survive (and if they do it, the muffler will weigh at least 10 pounds). In addition, the inner walls of the element having the vibration. welding muffler with his own handsThey are somehow absorbed through damping cushions, that are attached to the hooks of the body. But this does not mean that the vibrations are eliminated in the chambers of the muffler. Also not to mention the very location of the item. It is located in the rear of the body. All the dirt and water will certainly be on its surface. In addition, the silencer is one of the lowest parts of the car. Overcoming steep climbs, you can easily catch the lower part of the pavement or other surface. Yes, the element will not crack. But walls can be deformed. welding of the corrugation mufflerBut it depends on them the quality of damping in the exhaust system.

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Repairs on their hands – prepare the tool

So, our exhaust was very loud. A way out – welding, repair muffler. For this we need:

  • Welding machine (it is better to use a semi-automatic inverter with wire diameter 1 millimeter).
  • Tool Kit (ring and flat keys).
  • A Piece of sheet metal. It is desirable that its thickness was of the order of two millimeters.
  • Angle Grinder kit with grinding and cutting discs.
  • Sandpaper.
  • Metal brush.

Start work – dismantling of the element

Having Prepared all the necessary tools and materials, is go to welding the muffler. First you need to get to the exhaust system. Inspection is better done on a pit or overpass. In the absence of such poddomkratit one of the parts of the body and climb underneath. An element usually rust from the pipe joints with ‘can”. Next, take in hand two keys and untwist the clamp. Pull the muffler from the slots of the pipe to the outside. Please note that the item may be attached. In this case you need to sway it from side to side, widening the hole of the receiving tube. Welding muffler is better done when it is cleared. Doing the work locally is quite difficult (and dangerous as it close to the tank).

Open a jar

Sometimes, the exhaust system is working loudly, but no obvious signs of rot or cracks are not detected. repair of the muffler with your hands weldingIn this case, we can assume that the muffler is busted inside. It may be a perforated tube or its baffles. Therefore, for accurate determination of diagnosis, mark the desired field and reveal part of the “banks’ using a grinder. Turn down the extra sheet of metal and cut or re-weld the bar. At the end of the work sheet and re-bends ovarium from all sides.

Features welding

Why you should use a semi-automatic machine? As practice shows, this method of welding the most restrictive muffler, since carbon dioxide does not allow the metal to change its structure and to overheat. Producing works with the exhaust system, do not allow “gaps”. The seam must be as smooth and tight. Otherwise gases under pressure (and it is in the system is very high) will break free of cracks. All this is accompanied by loud unpleasant sound. welding muffler replacement corrugationsIf the welding of the muffler is outside, you should prepare a tube of the desired diameter. Cook over rotten metal will not work. But cracks“machine” to grab you. Therefore, in advanced situations, cut out a new piece of pipe (it is important that he was the right diameter) and williaim it in place of the old.

Why not just cut the rotten part and weld “Bank” directly? The fact that the muffler has a limited free stroke, and if his position is displaced, the pillows are constantly in tension. And if you cut more, or even the muffler is not fixed at their factory place.

Painting

The Final stage of the welding silencer – it's his painting. A layer of enamel will reliably protect the metal surface from the negative factors. It should be noted that ordinary paint will not do & ndash; golitely rathewalde to extreme temperatures (above 350 degrees Celsius). So the enamel will simply burn out. This will stand out a characteristic odor. welding muffler argonBut what to do in this situation? The muffler should be treated with special, heat-resistant (powder) composition. It could be dyes from the TO 828 8101. It is better to use products in cans. So the enamel will be evenly lie on the surface and cover the entire vulnerable and hidden areas. It only takes two layers to heat-resistant paint provides reliable protection and extend the service life of the muffler.

Welding muffler argon – what are the characteristics?

This is a modern technology that allows you to connect the parts of steel and metal alloys. The operation is carried out in several stages. First, the surface is prepared (trimmed with a metal cutter and degreased). Further details connect "tack". Then, on the line of the seam is laid a metal rod. At the final stage of the welding rod and the part itself. During welding, use argon gas. The oxygen is not supplied in detail as argon enters the welding area under a lot of pressure. welding mufflerThis technology provides high joint strength and tightness of the joint. The service life of the muffler much higher than renovated “machine”. But the downside of technology in the high cost of the equipment. Fortunately now there are lots of companies that provide services such as welding the muffler and replace the corrugations. The latter is also installed in the pipe for argon welding. The cost of such services is about three thousand, including the price of the three-layer corrugations.

Conclusion

Serviceable muffler – the key to a comfortable ride for the driver. After all, no amount of insulation will not save if from underneath pulled out of Gaza, clapping and pungent odor. Also note that in advanced cases, a reasonable solution would be complete replacement of the muffler. Especially that its cost is very reasonable. And set the item everyone can do – enough to have a key pair and a new clamp (thread coat with grafickou not to sour the bolts). By the way, installs a muffler (no difference new or renovated) on a special sealant. They are greased with the tip of the seat tube. We will thus ensure maximum integrity and will not allow gas to seep out through the small technological gap.


Article in other languages:

PL: https://tostpost.com/pl/samochody/40401-spawanie-t-umika-w-asnymi-r-kami.html

PT: https://tostpost.com/pt/carros/40033-soldagem-do-silenciador-com-as-m-os.html

ZH: https://tostpost.com/zh/cars/49632-welding-a-muffler-with-his-own-hands.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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