In many cars, the components of the exhaust pipes are problematic. They often fail, burn out or rust. New car systems for silencing the sound of a running engine after replacement sometimes do not last a year, coming into disrepair. This situation pushes some motorists to the idea of creating a muffler with their own hands using a more reliable and durable material for manufacturing. Agree, I do not want to spend almost every year on the purchase of exhaust pipes. You can also try to do so, to make the running car quieter.
The role of mufflers in the car
Exhaust pipe system, despite the seeming simplicity of purpose, performs several important functions, namely:
- significant reduction in the intensity of sound phenomena, arising from fuel combustion;
- lowering the temperature of the gases, initially have very high thermal performance;
- reducing the toxicity of exhaust gases.
That is, the muffler is needed not only for that, to make the car work quieter, although, essentially, this is its main purpose.
The self-made muffler can be made of improvised materials.
How the car's exhaust pipe works
Modern pipe systems, exhaust gases from the engine, at the same time transforming them, consist of several consecutive functional elements:
- Corrugated pipes, depart directly from the exhaust manifold. These elements do not have a rigid structure, necessary for that, so that the vibration of the engine is minimally transmitted to the entire structure of the pipe.
- catalyst, where the deactivation of the most environmentally and hygienically dangerous compounds takes place, formed by the combustion of hydrocarbons.
- resonator, is a special extension in the passage of gases through the exhaust system. This is the primary inhibition of gases, where the pulsating flow becomes slower and smoother. The standard resonator is designed to dampen the pulsations of the exhaust of a certain frequency, characteristic of this engine.
- muffler, where the exhaust finally loses speed and temperature due to dissipation. This formation has a rather complex structure, designed to disperse the gas flow as much as possible and absorb sound vibrations.
Removing the rear bumper VAZ 2114
The quality of each structural element of the exhaust pipe depends not only on their design, but also by weight. The harder (thicker metal) the same muffler, the less he perceives all sorts of vibrations. That is, the sound of the exhaust becomes quieter.
Thin-walled exhaust pipes are not only short-lived, but also more rattling, themselves creating unwanted noise. This is also often the reason, that motorists seek to make a muffler with their own hands, using better quality material, than used in the manufacture of a serial manufacturer.
The split exhaust for the muffler is ready.
A method of self-manufacturing muffler for cars
To make a homemade device you will need an outdated car powder fire extinguisher. This model of homemade muffler is not only effective, but also tested many times, therefore deserves attention. For work, except for the fire extinguisher, the following materials and tools will be needed:
- two-inch steel (inner diameter) pipe or two of its segments;
- some elements of the old muffler;
- electric welding machine;
- welding electrodes (1,5-2,5 mm);
- small Bulgarian with cutting wheels for metal.
Further work is carried out in this order:
- The head turns away from the fire extinguisher, poured the remaining powder. The hole expands to this size, that the prepared pipe entered densely enough.
- On the other side of the cylinder you need to prepare the same hole, but shifted to the wall of the fire extinguisher.
- At the end of the pipe sections (12-15 cm), quiet, that will be located inside, it is necessary to make round openings or through cuts by means of the Bulgarian.
- The prepared segments are inserted into a cylinder. It is calculated, so that the perforated areas are approximately in the center and opposite each other. The joints on both sides of the cylinder are welded in a circle, trying not to burn the metal of the fire extinguisher.
- From the served muffler we cut off fastening devices and weld on a self-made product, calculating and marking with chalk the place of attachment to the car.
- To check the reliability and tightness of welds, you can plug one of the pipes with a reliable plug, turn over and fill with water. There should be no minimal leaks.
- Drain the water and purge the product with a compressor (to completely remove residual fluid), you can put a self-made muffler on the car.
Body repair VAZ 2109 with their own hands
At the fire extinguisher welded tube is muffled, in her 70 holes in diameter 5 mm
Here's how, spending a minimum of resources and some time, you can solve the problem, how to make a muffler with your own hands. Equipped with such a reliable device, the car will run quieter, and you don't have to spend every year to buy a new exhaust system.