Installing a whistle in the muffler is one of the common car tuning techniques. By placing a whistle in the exhaust pipe, you can make the exhaust sound more pleasant and reminiscent of a working turbine. But such improvements aren't limited to cars or trucks. Many MTZ owners are also interested in how to make a whistle for a muffler. What is it for? What is better to choose – a purchased or homemade jammer? How to adjust the sound of the turbo whistle? You will find answers to these and other questions later in the article.
Why is a homemade element better than a factory one?
Due to the large number of fakes, it is very difficult to find a truly high-quality spare part today. And if such a part is found, the price for it will be simply exorbitant. Moreover, most of the complaints concern the elements of the exhaust systems. The muffler rusts and burns out very quickly. Its service life does not exceed 1-2 years. It doesn’t matter how intensively you use your car. It burns out not from mileage, but from time. Even if the car is driven once a week, this will not add life to the muffler. It will still have to be changed in a year or two.
After this time, car enthusiasts have a question about the need to replace or repair this part. If you repair the muffler yourself or make it from scratch, you can be sure that it will last much longer. After all, we will not skimp on important materials. Also, by making a muffler with your own hands, you can add your own configuration to the exhaust system. For example, make a forward flow to increase engine power. However, driving long distances with such a “can” will be uncomfortable. Therefore, you can remake the system in a different way by adding an additional resonator to it. This way the machine will run much quieter.
Flame from the muffler of a walk-behind tractor and black smoke: looking for the cause and solution
Many experts believe that such problems arise due to incomplete combustion of fuel in the unit. It is possible that a misfire, the use of an overly rich mixture, a drop in power or overheating may be detected.
If, after trying to start work, not only a flame appears, but also black smoke, then we are talking about the use of low-quality oil or seriously contaminated injectors. Naturally, it is advisable to purchase a higher quality lubricant and thoroughly clean the injectors of all excess.
Material and manufacturing method
Before you make a muffler with your own hands, you need to decide on the budget and the option for reworking the exhaust system. There are several tuning methods:
- Modification of a new factory muffler.
- Making your own. By the way, you can make a muffler with your own hands using both stainless steel and ordinary steel.
Experts do not recommend using old mufflers or other parts of the exhaust system that have already been used. In this case, even if they look good (after all, they can be repainted before selling), the inside will be covered with corrosion or even burnt out. Remember that with each engine start, the metal in the system heats up and changes its properties. It’s easy to guess what condition a muffler will be in if it’s been used for about 2-3 years on a car. Therefore, do not fall for the tricks of “lightly used” sellers and do not buy a used muffler. Best of all, make it yourself.
A less expensive solution from a financial point of view would be tuning the standard muffler. Making a part with your own hands from stainless steel is a very reliable, but expensive option. However, such an element will be more durable and will not burn out at the most inopportune moment.
We remake the muffler with our own hands
When choosing this tuning method, it is best to completely redo the exhaust system. To do this, purchase a pipe of the required size (most often its diameter is from 30 to 52 millimeters). Of course, the thin-walled tube that comes to the car from the factory will be very difficult to find. Therefore, we use thin-walled tap water as an analogue.
The housing for the muffler is made from a car fire extinguisher. Moreover, the outlet and inlet holes should be shifted relative to each other. The ends of thin-walled pipes should be inserted 60 percent inside the container. Numerous holes should also be made in them. As for partitions that are installed in factory versions, it is not necessary to weld them. Using the same principle, you can make a muffler for a carbine yourself.
Making a field sprayer
A homemade sprayer for a walk-behind tractor is necessary in cases where the area of cultivated crops exceeds 20 acres. Doing this type of work manually is very difficult and can take a whole day. Mechanization of this process will save a lot of time and effort.
To make a sprayer you will need:
- welding machine;
- Bulgarian;
- level;
- electric drill;
- soldering iron for polypropylene pipes;
- profile or round water pipes;
- plastic or steel barrel with a capacity of 80-100 l;
- wide pneumatic wheels;
- plastic pipes;
- rubber hose;
- injectors or nipples from wheel tubes.
Assembling a homemade sprayer is carried out in the following sequence:
- Making the frame. Its dimensions are adjusted to the size of the container. The chassis is attached to the frame. For good cross-country ability you need at least 4 wheels. In the absence of wheels, wide skids are made of aluminum.
- The container is installed and secured on the frame. For this purpose, spacers and ties are used. Holes are made in the tank for supplying high-pressure hoses. The tank neck is sealed.
- A bracket for the pump is being manufactured. A model is selected that operates from a power take-off shaft (belt drive) or from electricity (motoblock generator).
- The irrigation system is being assembled. A durable holder is made from steel profiles. Plastic pipes are attached to it using clamps or plastic ties. A valve is being installed to bleed off excess pressure and injectors.
- All parts are connected together, the quality of the fastenings and the tightness of the joints are checked. The tank is filled with water, the unit is tested in various modes, and final adjustments and settings are performed.
A self-made sprayer will fully justify the efforts invested in the first season. Thanks to this device, spraying and watering the garden will be done quickly and efficiently.
Pay attention to weight
Due to the fact that the water pipe weighs an order of magnitude more than the one that comes with the part from the factory, you will have to strengthen the fastenings. In addition, you should insert the flexible corrugation into place that goes after the exhaust manifold.
Thanks to such changes, the noise level will be significantly reduced, and the service life of the part will be more than 2 years. By the way, the heavier the pipe, the less vibration it will emit.
Adviсe
In order to reduce the noise of a homemade muffler, it is recommended to fill its body with some material such as glass wool. It is also recommended to make a condensate drain hole at the bottom of the muffler. Thus, it will not rust prematurely and make extraneous noise.
If this is a muffler made with your own hands from stainless steel, it is important to think through its design. Make it partially collapsible. This way you will periodically clean the pipe cavities from dirt and change the filler if necessary. Thanks to the collapsible design, the service life of the part will increase several times. Do-it-yourself installation and replacement of the muffler is done in standard places. The main thing is to strengthen them, since the weight of the structure increases slightly.
The walk-behind tractor shoots at the muffler
One of the most common muffler failures.
Most often associated with a problem with spark plugs or low-quality fuel. When a walk-behind tractor starts shooting, sneezing and making other strange sounds during operation, first of all you need to check the spark plugs, replace the fuel, and readjust the carburetor. If the problem persists, remove the air filter, with the engine running, cover the air with your palm and wait until the engine stalls. Repeat the procedure several times. If the above manipulations do not help, it is best to contact the service center.
Painting issue
Is it worth painting the muffler? There is no clear answer to this question. Most car enthusiasts say that the paint for it should be fire-resistant. Otherwise, it will simply burn. The ideal solution would be to make a muffler made of stainless steel. You can see an example in the photo below.
Using stainless steel will close the issue of painting once and for all. Well, you can paint the muffler on the carbine with your own hands with matte black paint. The main thing is that it is resistant to high temperatures.
Flame from the muffler of a walk-behind tractor
A situation also happens when a walk-behind tractor fires and a flame appears from the muffler. Do not panic, but immediately stop working, turn off the engine and try to get rid of the cause of such a breakdown.
The whole point may be that the fuel is not completely burned in the system. There may be several reasons for this:
- misfire;
- fuel mixture too rich;
- overheating during prolonged hard work;
- power drop;
- late ignition;
- water in fuel;
- low pressure in the cylinder;
- demagnetization in the flywheel.
As you can see, there can be a lot of reasons, but don’t despair. You need to check all these systems and find the original source of the breakdown. This is quite simple to do - in the operating instructions you will find the structure of the unit and answers to many questions.
How to repair a muffler with your own hands without welding?
Now there is a new method for restoring the performance of exhaust system parts using a universal composite polymer (various sealants). Thanks to their special composition, they harden quickly and are not subject to external negative influences, including high temperature changes, which is very important for the exhaust system. In car markets you can find two types of sealants, thanks to which you can repair the muffler yourself without welding:
In combination with high-quality reinforcing components, these types of sealants will create a reliable “patch” on the burnt-out section of the muffler. Car enthusiasts note the effectiveness of plastic elements. It is these sealants that are characterized by high adhesion to metal, even if there is rust on it.
The walk-behind tractor shoots at the muffler
The design of walk-behind tractors is quite simple at first glance. However, troubles happen that can simply stop the work of cultivating the land and the operator may not know what to do.
If you notice that the walk-behind tractor begins to shoot at the muffler, you need to immediately stop work and try to find the cause of the breakdown and fix it immediately. It's very easy to do.
So, if you have such a problem, then the reason may be hidden in the spark plug, or rather, there are gaps in the spark supply. You need to first clean the spark plug itself. Then you must unscrew it and connect the spark plug body to ground, while simultaneously turning the crankshaft of the starting handle, checking for the presence of a spark.
If you start the walk-behind tractor, but it turns off and there are popping sounds from the muffler, you need to check the spark plug. If it is wet, you need to clean it or even replace it with a new one. The presence of liquid on the spark plug will prevent a spark from appearing between the electrodes.
How to use?
Do-it-yourself cold welding of a muffler is done as follows. First, the surface goes through a preparation procedure. The area should be cleaned with sandpaper. After this, the surface is degreased using white spirit, gasoline or another solvent. Next, you should prepare the adhesive composition. Cut off the required amount of sealant and knead it. In the case of using liquid analogues, mix them thoroughly. Next, apply glue to the damaged area of the muffler and level the mixture.
Please note that the composition hardens within a few minutes, so all work with the sealant must be done very quickly.
Finally, you need to wait until the mixture dries completely. Depending on the brand of the manufacturer, this takes from 1 hour to a day.
How else can you reduce exhaust system noise?
To do this, you can install an additional muffler resonator. You can make it from scratch, like the muffler itself, or you can make it again from a fire extinguisher. However, the material of this part is not particularly designed for high temperatures. But, as practice shows, such resonators are quite effective in operation.
The most important thing when making an additional resonator is to place the tubes correctly. They must be offset relative to each other (everything is similar to making a muffler). To swirl the exhaust gases, holes are made in the pipe. Thus, the gas pressure level decreases and they do not create much noise at the outlet. As you can see, making a resonator for a muffler with your own hands is not so difficult.
The weight of the newly manufactured element should also be taken into account. If it is heavier than the standard one, you will have to strengthen the fastenings on the bottom, otherwise the part may come off right on the move. It is not necessary to fill the inside of the resonator, nor is it necessary to install partitions.
So, we found out how to make a muffler with our own hands.
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How to make a muffler for a car with your own hands?
Car enthusiasts and car owners are often interested in how to make a muffler for a car with their own hands? It’s worth mentioning right away that in order to make a muffler for a car with your own hands, you should have a good command of tools, electric welding, and have enough free time to make it. You may end up saving money, but that's where the benefits end! So, what do you need to make a muffler for a car?
What do you need to make your own muffler?
There are a huge number of options for standard (ordinary) mufflers for cars in terms of internal structure. The point of any muffler design is to effectively break, refract and dissipate the sound wave that occurs when the fuel mixture detonates in the engine combustion chambers. This is done by perforating pipes inside the muffler can, using partitions, reflectors, chambers of different volumes, soundproofing material and a complex “labyrinth” method of movement of exhaust gases.
To make your own car muffler, you should use the same principle. Alternatively, you can try to repeat the design of the muffler native to your car; most likely, this will be the best option. However, you can come up with your own design and make a muffler for a car of your own invention, if you don’t feel sorry for your car.
Basic materials for making your own muffler for a car:
- sheet of metal 1.5-2 mm thick for the muffler can;
- pipes with a diameter corresponding to the pipes of the exhaust system of your car (the diameter of the pipes depends on the characteristics of the engine);
- two end caps (make it yourself or order from a turner);
- partitions inside the muffler can also be ordered from a turner, having calculated their design in advance;
- tools.
If you have everything you need from the above, then you can make a car muffler.
How to make a car muffler, steps?
To make a muffler for a car, you should:
- measure, cut and bend a sheet of metal to the shape of the muffler can;
- make perforations in the pipes inside the can, this can be done with a drill with drills of different diameters or small cuts with a grinder;
- weld the internal structure of the pipes to the partitions and reflectors;
- put on and weld the outer casing and end caps;
- weld fastenings;
- install the muffler on the car.
If you did everything correctly, the output sound will be a little louder or a little quieter, depending on the quality of the homemade design. If you make a car muffler with high quality, you will get a reliable and durable part with the ability to muffle sound within acceptable standards.
What happens if you make mufflers with your own hands?
If you make a car muffler yourself, as close as possible in structure and size to the original factory product, then this option is perhaps worthy of attention. Moreover, such a muffler for your car will be made by you from high-quality materials chosen by you. And if you have done all the installation and welding work efficiently, then you can count on a longer service life of such a part.
If you decide to make a car muffler based on your own fantasies, then this will not lead to anything good. Before developing and manufacturing a muffler for a car, any automaker specially develops the configuration, the total volume of the exhaust, its components, dimensions and shape, and other components, based on the parameters of a particular engine and fuel system. The exhaust undergoes adjustment and optimization using special equipment; it is tailored to a specific car model.
Based on this, if you decide to make a car muffler yourself, you will violate the factory settings, the amount of back pressure of the exhaust gases will change, the volume and filling speed of the exhaust system will change, etc. Such a muffler on a car can affect engine operation, reduce useful power or increase fuel consumption, and reduce engine life. Although the negative consequences are somewhat mitigated by tuning for a new muffler, this does not change the risk.
Does it make sense to make a muffler for a car?
None at all! If you take the cost of materials, the cost of your work (time spent) and compare them with the prices of ready-made mufflers of standard quality, then the difference will be very insignificant, if any. And if we add other risks here, then there is simply no practical sense in making something with your own hands. Buy an inexpensive muffler from a manufacturer you trust and simply install it in the exhaust system.
Secret silencer. The tractor works below the grass, quieter than water
To achieve the ideal (minimal) sound, it had to be assembled from three separate parts. Also modify the insides of the resonator. Since the tractor is equipped with a VAZ 2101 engine, the exhaust manifold is from this machine.
Next came the improvements. Instead of ordinary pants, we took two pipes with a diameter of 40 mm, a wall thickness of 2 mm and a length of 10 0 mm. Old Soviet curlers of a smaller diameter with slots throughout the entire body of the product were inserted inside and secured using electric welding.
. This allowed the exhaust gases to be dispersed so that they did not fly further straight.
The pants were welded from Moskvich 412. They were not filled with anything, we had to bend them a little, but this did not cause much difficulty. To do this, the pipes were filled with sand, heated with a blowtorch and shaped into the desired shape using a hammer and yews.
Even such innovations did not give the desired result. The sound of the tractor could be compared to a running VAZ car. The sound is not loud, but it did not suit our inventor. I wanted to achieve silence. Therefore, we took out an exhaust pipe from MTZ 80 and modernized it for our tractor.
To do this, they cut it in half. 35 centimeters were cut from one part along the entire length. A mesh filled with asbestos thread from the air filter was inserted into the second part and both parts were welded back into a single whole.
. Then this entire structure was mounted to the pants.
After starting the tractor, we got the desired result. When Byasha is idling, you can hear the clutch disc and belts spinning on the pulleys. The sound of the engine is almost inaudible.
The idea of dispersing exhaust gases using curlers and asbestos thread is the author's own. And in general, when creating the tractor, they did not use the Internet
. Everything is assembled thanks to the skill and experience of a specialist.
Thank you for your attention!
