No matter how much Russian car enthusiasts scold the domestic auto industry, the models produced by VAZ, such as Kalina, deserve the right to flattering reviews. Of course, with a caveat - if you notice problems in all its systems in time and replace failed devices. One of these “problem” parts is the muffler corrugation.
Real reviews from Lada Kalina car owners about its exhaust system:
- For some reason, the corrugation is one of the first to burn out, and then the festival of breakdowns is picked up by the rest.
- It is no longer the system elements themselves that cause concern, but the factory welds at their connections.
- Sedans, station wagons and hatchbacks have different mufflers, but their service life in practice is the same.
- Kalina’s mufflers “destruct a long life” after only 40-50 thousand kilometers.
Why does it fail, affecting the condition of other parts, and how to replace it?
What will tell you that the muffler corrugation on Kalina needs to be replaced?
You don’t need to be an auto mechanic to understand that the muffler corrugation on Kalina needs to be replaced when the element is no longer suitable for use.
They will tell you about this:
- The smell of burning. Exhaust gases can penetrate into the cabin, causing nausea and fatigue of the driver and passengers, and if inhaled for a long time - loss of consciousness and tragic consequences (from fatal poisoning to an accident).
- Claps. They come from underneath. Such sounds not only cause discomfort to the owner of Kalina; for violating the noise level in neighborhoods, the traffic police inspector has the right to impose a fine on him.
- Engine noises. It can operate louder than usual, while producing sounds similar to gurgling.
The result of the work
In order for the muffler to last a couple of thousand km longer, before installation it is necessary to fill it with a special liquid that prevents corrosion from forming. The muffler must be twisted in different directions so that the liquid completely lubricates the internal space.
As a result of replacing the muffler, the sound of a running engine will not frighten passers-by, alarm drivers or infuriate traffic police inspectors. And comfort.
During operation, the engine produces certain noises, which require the installation of appropriate equipment to suppress them. The muffler for Kalina is represented by a tube, which includes the muffler itself and the resonator.
Its body is solid and sealed, it is made without welding, which indicates good protection against rust. After some period of use, the device wears out and begins to work louder. As a rule, drivers of a Lada sedan, station wagon or hatchback, whose mileage is at least 40 thousand kilometers, encounter this problem. If the part is worn out, it can be “patched”, but its complete replacement is recommended. You can do this yourself using a hammer, wrenches and lubricant.
When failure and replacement of Kalina corrugation
An experienced craftsman will name the reasons for the failure of the corrugation after only briefly examining it.
Dents, punctures, gaps in the housing with rupture of the outer layers of the braid - most likely, the corrugation received mechanical damage during movement. The body can be torn open by a stone, a bump, a hole in the road, or anything that the bottom of a car can run into.
Rust, breaks at the joints of the part with the manifold and pipe. The joints, as motorists have already warned, are the weak side of the muffler corrugation on Kalina. It itself is made of stainless steel, but welds that are not coated with anti-corrosion material, from dirt, dust, moisture, reagents, etc., crumble quickly.
Traces of burning through the corrugation. Due to constant exhaust pressure at high temperatures, the braid layers may someday burn out. This almost always happens if the honeycomb of the catalytic converter is clogged, when the pressure increases many times. The body bristles with brittle and torn layers of braiding and loses its seal.
Violation of corrugation fixation. The clamps can simply rot, and part of the weight of the pipe will be distributed onto the corrugation, which will lead to its rupture.
Not a repair, but a replacement of the Kalina muffler corrugation
It is not worth shifting all the sins onto the manufacturer due to breakdowns of individual parts. Much depends on the driver - any master will tell the owner of Kalina. Imported muffler elements will also not last forever for two reasons:
- Constant thermal impact on the corrugation. Since the part is an integral link in the exhaust system chain, gases with an unquenched temperature pass through it, and the wave will create internal pressure on the walls.
- Constant mechanical impact on the corrugation. As soon as the driver starts the engine, vibrations and vibrations are transmitted to this part, which, due to its plasticity, compensates for them, thereby protecting other parts of the system from rapid wear.
Where to buy a new muffler corrugation for Lada Kalina
Unlike the muffler, which is produced for Kalina only at VAZ, the corrugation can be selected from a very wide range. The defining factors here will be:
- Dimensions. The length and internal diameter are taken into account, taking into account the application of welding seams. Measurements can be made using the old corrugation removed.
- Type. Instead of corrugation with a two-layer braid, you can install it with a three-layer one. It will be about one and a half times more expensive, but will last longer. With one condition - the welds will be applied as evenly as possible.
- Manufacturer. There is a choice of imported corrugations of suitable sizes. World brands guarantee quality, but the price of their parts is higher than domestic ones. Although the corrugations produced in Russia by manufacturers with less famous names are not inferior to them in all respects, and cost significantly less.
What is needed to replace the muffler corrugation for Kalina
To replace the corrugation quickly and efficiently you will need:
- Conditions for the procedure. The street and the jack are not the best combination for such a case. When the muffler pipe is removed, the old one is dismantled with a grinder and a new corrugation is installed by welding, it is better to use a lift or inspection hole, and carry out the work in a dry and warm room with sufficient lighting and compliance with safety regulations.
- Equipment. Any test benches, etc. It is not necessary to replace the muffler corrugation. But at a minimum, you need a cutter and a welding machine.
- Tool. The minimum set is open-end wrenches, screwdrivers, a hammer, that is, everything that is included in a standard repair kit.
- Additional details. You will need WD-40 lubricant, anti-corrosion agents, new gaskets, O-rings, clamps, and replacement bolts.
- Experience in welding work, as well as experience in replacing corrugations. Without it, it is better not to try to experiment - in the best case, you will soon have to install a new corrugation again, in the worst case, you will have to change the entire muffler and resonator.
Algorithm of actions when replacing a muffler corrugation
A simplified procedure for replacing the corrugation looks like this:
- The muffler is removed.
- The old corrugation is cut down.
- On the new corrugation, cuts are made at the joints (if necessary), and the old seams on the pipe are cleaned.
- The new part is installed in place of the old one.
- Welding is carried out (first spot welding to fix the part, then full welding around the entire circumference).
- The weld seam is treated with an anti-corrosion agent.
- The muffler is installed in place and secured with hangers.
Professional work
Pros: selection of the best and inexpensive part, quick replacement of the muffler corrugation, diagnostics of other parts (including the catalyst - the main culprit of corrugation failures), guarantee for all types of work.
Cons: slightly higher price. However, it is not as great as it might seem to those who want to save money.
Our car service offers exactly these services: quickly, efficiently, inexpensively, with a guarantee. Contact us, we will be happy to help!
Good evening everyone, dear friends! I haven’t written anything for a very long time, which is about a little over a month ago. At one moment there was nothing to write about, at another moment there was, but there was neither time nor desire. But now there was time and desire. As the title suggests, I replaced the resonator with a muffler.
I prepared in advance for the 20th of June and slowly stocked up on the resonator and muffler. I stocked up again at a friend’s store. Here are the prices for my parts.
Gasket - 50 RUR Resonator - 3950 RUR Muffler - 990 RUR Muffler clamp 1118 - 78 RUR Oil pressure sensor - 92 RUR Muffler rubber (5 pieces, SEVI company) - 96 RUR And I also bought copper nuts costing 15 rubles each. I bought 4 pieces, I think.
Early Saturday morning, June 20th, the exhaust line was scheduled to be replaced. In the morning I took my mother to the garden. And I went to the garage to repair it. As you remember, my muffler fell off and the pipe was bent over the beam. This made it easier for me to remove the exhaust system. He climbed into the hole and began to unscrew the nuts that secure the resonator to the catalytic collector. Two nuts unscrewed just more or less normally, but then something went wrong and now I have a nut with a piece of a hairpin in my hands.
It’s so good that not so long ago I got an angle grinder and an electric screwdriver.
We clean it, drill it out with a 8mm drill. The photo was taken of only the cleaned cat collector.
But this is where the fun begins. I didn’t find that I had an 8 bolt with a full thread, but only one that had half a thread, and the part that was without thread was larger in diameter. I didn't want to drill it out. I went to my neighbors’ garages, they also don’t have such bolts, but only those that I myself have. I went to the OLMI auto store, to the Cascade hardware store... The same story as in the garages. And then I remember the miracle store which is located a 15-minute walk from OLMI. Of course, this is a fastening tool. I went to this store. I show the bolt to the seller, which I grabbed as a sample from the garage, and say that I need a bolt of the same diameter with full thread and a little longer. Supplies bolt 8 and 55mm long. But knowing my beloved self, I take 4 bolts, just in case. But the cases are different. 4 such bolts cost 11 or 14 rubles, I don’t remember exactly. I leave the store, look at my watch and see that it’s approaching 12 noon, it’s not far from home, and I’m already hungry, and even more so I need to walk the dog. In general, at 12.00 in the afternoon I was already heading out to the garage with brand new bolts.
The best resonator manufacturers
Each resonator has a set of pros and cons that manifest themselves during operation. They are noted by car owners and service station technicians. When choosing, you need to pay attention to the features of each model.
CBD
Description. The CBD brand belongs to a domestic company that specializes in automotive parts, in particular for the exhaust system.
The range of resonators is divided into two categories. There are standard models that are made specifically for a specific car brand, as well as universal ones that can be connected to most exhaust system pipes.
During production, all quality requirements are met, including GOST, as well as international standards.
The manufacturing process uses carbon or aluminized steel, which are resistant to wear and rust.
This, combined with modern manufacturing technologies, has led to an increase in the service life of spare parts.
Equipment. May vary depending on series. Some resonators are supplied complete with a muffler and other elements. The standard kit includes the spare part itself, fasteners, as well as adapters, a gasket, and a can. There are resonators sold separately.
Life time. The warranty period varies from 12 months to 2 years depending on the line.
Pros of CBD
- Thickened body and long service life.
- High-quality performance without defects.
- Large assortment with universal models available.
- Acceptable prices.
Cons of CBD
- There are fakes made from low-quality metal.
Atiho
Description. The Atiho brand specializes in exhaust systems. For most brands of cars, you can select mufflers, resonators, catalysts and any other spare parts. The company produces spare parts using European technologies.
The resonators are free of defects and have low prices.
Take into account that the quality meets international standards.
Equipment. It can be full-fledged, that is, with other elements of the exhaust system, or single with clamps and a can. On the market you can find special sets of resonators with muffler for sports cars.
Life time. Guaranteed service life is 1 year. In practice, spare parts are used for 2-3 years if they are treated with care and the correct model of spare parts is selected.
Pros of Atiho
- Inexpensive quality spare parts.
- Large selection for different cars.
- Good level of sound insulation.
- Similar to the originals.
Cons
- There are counterfeits, which are characterized by poor performance of spare parts and defects.
Stinger
Description. The American brand is one of the aftermarket leaders in exhaust system spare parts. Resonators and mufflers are supplied all over the world and have certificates confirming compliance with international and European standards.
There are several lines of resonators. You can find stainless steel and regular models in the market. American products are distinguished by dimensional accuracy, which allows you to replace original parts without adjustment.
Equipment. May include the resonator itself, a jar, a spider, and gaskets. There are extended configurations that consist of several spare parts for the exhaust system. You can also find single spare parts, but in this case the risk of buying a fake increases.
Life time. The resonator warranty is set for 1 year. For some series, the period has been increased to 18 months due to the use of higher quality materials.
Pros of the Stinger
- Compliance with the originals.
- Large selection of conventional spare parts and those with extended service life.
- Good job.
- Nice sound.
Cons of the Stinger
- A large number of fakes that do not have positive qualities.
- Some series have a short service life.
MG-RACE
Description. The MG-RACE company produces spare parts for exhaust systems for foreign cars and the domestic auto industry. The brand is distinguished by its focus on this segment of the secondary market. The range includes standard and universal models, as well as special resonators for sports cars.
Resonators are produced using special technologies and modern materials. The combination of these factors allows you to increase the car’s power and eliminate extraneous sounds. The brand is valued for its large selection of resonator models that have a long service life.
Equipment. A set of a resonator, a can, a gasket and additional fasteners is considered standard.
You can also find special kits with all exhaust system components. They are installed on a number of car brands, including sports cars.
Life time. The warranty is issued for 1 year. A number of sports series have a 3-year warranty. Duration of operation can reach 5 years.
Pros of MG-RACE
- Good quality and noticeable sound reduction.
- Noticeable increase in power.
- Large selection of spare parts that are of the same quality as the originals.
Cons of MG-RACE
- A number of episodes reduce the sound poorly.
Asam
Description. The Romanian brand Asam has been engaged in automotive spare parts for a long time and has managed to earn a positive reputation.
Resonators are produced in compliance with all quality requirements, since the products go to European markets, including Russia. All spare parts are made from modern materials with increased strength. Special noise absorption technology is also used.
Equipment. Includes resonator, jar, gasket, couplings. Additionally, you can find extended kits for certain car brands on the market. A number of series contain a special thermal paste, which increases the service life of the device.
Life time. The warranty is issued for 1 year. In practice, spare parts last more than 3 years and 60,000-70,000 km.
Pros of Asam
- Precision of details.
- There are no complaints about work and noise absorption.
- Long-term operation.
Cons
- Some models that replace standard spare parts require customization.
WALKER
Description. The American company produces parts for the exhaust system. Production facilities are located in several countries around the world.
Resonators are produced using special technologies, which ensure low noise levels and durability. The material most often used is stainless steel.
Equipment. Depends on the country of origin. In most cases, you can choose a kit with everything you need for installation. There are also individual elements.
Life time. The warranty is 12 months. Some spare parts, including specialized ones, have an extended warranty period of 18 months.
Pros of WALKER
- Excellent quality and no defects.
- A variety of resonators with a long service life even in difficult conditions.
- Low noise level.
Cons
- Often the sizes of native European resonators and analogues from an American company do not correspond.
EDEX
Description. The Polish brand specializes in the production of spare parts for the exhaust systems of various car brands. The product range includes mufflers, resonators and other components.
Resonators, regardless of the series, are made only from high-strength materials, which increases their service life.
Additionally, they note the dimensional accuracy in relation to original spare parts.
Equipment. May include a muffler and resonator, as well as all connecting elements, or just the resonator with everything necessary for installation.
Life time. The guaranteed service life is 1 year. Operation without loss of performance can last up to 3 years.
Pros of EDEX
- Dimensional accuracy with comparable quality to standard parts.
- A large selection that allows you to choose a spare part model for any brand of car.
- Quiet operation sound.
Cons of EDEX
- There are cheaper parts on the market with comparable quality.
Differences between spare parts
Today on the market you can find an extremely large number of Kalina mufflers, the prices of which are too low. However, you need to understand how much an original spare part costs (to do this, just go to the official Lada website) in order to be able to distinguish between components made by hand. They will most likely last several times less than the original and, quite possibly, due to non-compliance with the technology, will even pose a danger to the life and health of the driver. Spare parts for model 1118 differ in the following parameters:
- material. The original spare part is made of aluminum or stainless steel. A product made of stainless steel will be quite difficult to find; they are often made to order. If the muffler is made of any other material, it is a fake;
- price. The cost of the original component is estimated at a thousand rubles or more, while fakes can cost less;
- weight. For the original it is higher than for the fake, since the real model is equipped with thicker walls and also contains a soundproofing layer;
The difference between the Kalina sedan, station wagon and hatchback muffler is that in the first and second models the product tube is curved, and the last model is equipped with a muffler with straight inlet and outlet pipes.
Important points when replacing the resonator
We do not recommend delaying the replacement of the resonator, since its role in the exhaust system is quite important, and the cost is not capable of causing a financial fiasco for the owner of the LADA Kalina (1-4 thousand rubles).
Despite the insufficiently impressive number of resonator offers on the market, finding a truly high-quality product is very difficult. Let us remind you that for LADA Kalina sedan or station wagon, resonators are offered with a corrugated component. We recommend choosing a product made of stainless steel.
Experts recommend replacing the resonator every 20 thousand km. As a rule, at this point the product exhibits operational problems associated with the beginning of unwanted low-frequency sounds entering the cabin. And if everything starts up, then the muffler will need to be replaced.
Now we warn owners against the temptation to purchase cheap options of dubious origin. Such resonators can upset after 1000-1200 km.
Manufacturers
Parts for Lada 1118 can be purchased from the following manufacturers:
- Lada . The AL category factory part has all the necessary characteristics for installation. It is made of aluminized steel, and the addition of silicon to the mixture only better protects the product from rust and improves resistance to temperature changes and aggressive chemical compounds. You can purchase such a part from official representatives of the company or in company stores;
- BalakovoRezinoTechnika. This Russian manufacturer, in addition to spare parts for domestic cars (VAZ, KamAZ, GAZ), is engaged in the production of rubber products as its main activity;
- Auto kit . This company operates in St. Petersburg and produces, in particular, roll-up mufflers for the VAZ 1118;
- Melitopol plant of automobile and tractor mufflers "UTAS". Engaged in the manufacture of exhaust gas systems. The company's assortment includes 150 types of products, including intake and exhaust pipes, mufflers for the VAZ 1118. The products produced are excellent for Moskvich, VAZ, MTZ, GAZ, ZAZ and many other brands of vehicles;
- SKS . The company's products meet the declared characteristics and have the required thickness and standard size. It is made, like the factory components, from aluminized steel, and can be installed along with the factory components of Kalina 1118;
- Polmostrow . The products of this Polish company include muffler models for the Kalina sedan and fully comply with the factory requirements of the domestic manufacturer. The design has seams that are welded automatically, which eliminates the appearance of unevenness and roughness. Rolling takes place along the tank of the product, which is done using German equipment. After manufacturing, the product undergoes technical control, testing, and only after that it is sent for sale.
Exhaust system of Lada-Kalina
Owners of a Lada-Kalina car sooner or later have to deal with the repair or replacement of a muffler. This unit is one of the problematic ones, which is associated with factory defects. Despite the fact that the design is made in the form of a solid and sealed body without welds, after a run of 40 thousand km the system wears out: the integrity of the body is compromised, the sound becomes louder. The muffler can be repaired by installing a patch on the burnt area using welding. However, such a measure will only temporarily eliminate the problem. Therefore, it is recommended to replace the element with a new one. The exhaust system is designed in such a way that even an inexperienced motorist can diagnose and replace it with his own hands.
The part differs depending on the modification of the car. Thus, for sedan and station wagon bodies a model with a curved pipe is used, and for a hatchback - with straight inlet and outlet pipes. The part numbers are as follows:
- 1118–1200010 main muffler for Lada-Kalina sedan and station wagon;
- 1119–1200010 main muffler for Lada-Kalina hatchback.
What does the Lada-Kalina muffler consist of?
The main purpose of the exhaust system is to absorb noise from engine exhaust gases. On the Lada Kalina, the unit consists of a resonator and a muffler. The parts are connected to each other with a clamp and an o-ring. The muffler is a one-piece structure, and the resonator consists of several closed chambers. The chambers are connected by small tubes with holes. This design ensures smoothing of sound vibrations by the resonator. In the latest versions of the car, the joints are additionally laid with noise-absorbing material.
Exhaust system: 1-gasket; 2-catalytic converter; 3-sealing gasket; 4-metal compensator; 5-additional muffler; 7-catalytic manifold bracket; 8-receiving pipe; 8, 10 - muffler suspension cushions; 9-metal O-ring; 11-main muffler; 12-bracket clamp
Features of replacing parts
After replacing the muffler on Kalina, in rare cases you may encounter the following problems:
After approximately 3-4 years of operation of the car, some elements of its exhaust become unusable. Of course, in this case we are not talking about foreign cars, but about cars from a domestic manufacturer. Why does the muffler fail so quickly? It's simple: firstly, it is usually made from low-quality metal, and secondly, constant exposure to various external factors contributes to the very rapid development of corrosion.
Replacing a part at a service center
When replacing a muffler, you need to be especially careful, since there are many types of the device depending on the car model. The desired option is selected in accordance with the dimensions and mounting locations. If problems arise during independent work or you are not confident enough in your actions, it is better to replace the device at a service center. To do this, you will need to prepare a certain amount of money.
Replacing the muffler is a simple operation. Its price should be appropriate - no more than 1500-2000 rubles (excluding the cost of the device itself). If the cost exceeds this threshold, it may be a scam. But if they ask for 200 rubles for the work, you shouldn’t expect high-quality repairs.
The resonator may need to be replaced. The resonator is the second important part of the muffler. It performs the same functions as the main muffler, but additionally protects the device from sparks and flames. In case of malfunctions, it must be urgently replaced.
Replacing the Lada Kalina resonator is done in exactly the same way as replacing the muffler. If problems occur, it is better to contact the service center.
Replacing the muffler on Lada Kalina
The easiest way to replace a worn muffler is in the inspection hole. The main and additional mufflers are connected to each other by means of a metal clamp. To dismantle it, you will need two 13mm spanners or wrenches. With one wrench we hold the bolt nut, preventing it from turning, and with the second we unscrew it. After the bolts are unscrewed and removed, carefully remove the clamp.
Next, move the exhaust pipe of the muffler back a little and remove the connecting gasket (connecting ring). Then we move the exhaust system pipe to the rear suspension beam.
Now we remove the muffler mounting bracket from the first shock-absorbing rubber pad. Then, using a small pry bar, remove the muffler from the second cushion. We remove it, carefully removing it from under the rear suspension beam.
Replacing the resonator yourself
As when replacing the main muffler, to replace the resonator we will need to remove the mounting clamp. To do this, use two 13mm wrenches to unscrew the bolts that tighten it. By the way, if due to severe corrosion it is impossible to unscrew the bolts, you can go another way: cut them off using a grinder and subsequently replace them with new ones.
The resonator is bolted to the catalyst with two bolts. Before unscrewing, it is recommended to treat them with WD-40 and tap them with a hammer. After the nuts have loosened, use two wrenches to unscrew the bolts securing the resonator to the neutralizer. An important point: do not unscrew the nuts completely. If the car does not have a neutralizer, unscrew the bolts securing the resonator to the exhaust pipe.
Next, carefully lift the resonator and remove the rear rubber cushion from it, and then the front one.
After this, holding the resonator, finally unscrew the nuts and remove the spring washers. Remove the bolts and dismantle the resonator.
Installing a new resonator is done in the reverse order.
It should be noted that in case of severe corrosion of the mounting bolts, clamp and the resonator itself, a somewhat non-standard method can be used: the faulty unit is cut off using a grinder from the corrugation to the main muffler. The new resonator is installed in place of the old one using electric welding.
Getting ready to replace the resonator
After some time of operation, every owner of a practical Lada Kalina is faced with the need to replace components of the exhaust circuit; a resonator needs to be replaced, and less often, a muffler needs to be replaced. Of course, no one has canceled the option of performing the repair procedure in a car service center, but the resonator is one of those products that are available for manual replacement.
To perform the entire list of repair operations, the owner does not need to use special tools and devices.
It will be enough to acquire:
- WD-40 penetrating agent, required for treating corroding joint areas of the resonator and its fasteners;
- a pair of keys of identical standard size (on “13”), only one of them will need a socket, and as the second you need to use a head complete with a wrench;
- with a hammer.
The main reason prompting the owner of a Lada Kalina to start replacing the resonator is progressive corrosion. Here it will be necessary to replace not only the exhaust system component itself, but also its fasteners (clamps), since they are also subject to intense corrosion and oxidation due to their location.
It is also recommended to replace the rubber suspensions of the resonator to the body, since over time they harden and crack, and therefore, gusts are possible and the exhaust system stops working.
Replacing the front brake pads of Lada Granta
Replacing the resonator Lada Kalina
The car became painfully loud. The muffler was new (see how to replace it here), but I still decided to crawl under the car and check the tightness of the entire exhaust system. It turned out that the resonator pipe (additional muffler) was rotten in the place between the main and additional mufflers.
In such a situation, the resonator must be replaced. To replace the resonator on Kalina, it must be removed (this is obvious). To do this, you will have to unscrew three nuts securing it to the exhaust manifold and 2 nuts of the clamp connecting the resonator to the main muffler. The work is best done from the pit.
The task at first glance is simple, but there is one “but” - the nuts on the manifold could become very stuck and it will be very difficult to unscrew them. Spray them with WD-40, use strong wrenches. For convenience, you can remove the engine protection.
After everything is unscrewed, remove it from the hangers and pull it out. The resonator itself was in good condition, but the two elbows going to the clamp were rotten. Therefore, I decided not to spend money and buy a new one, but to try to solve the problem with the help of welding and a grinder. If things are much worse for you or you just don’t want to fool your head, then buy a new resonator and install it in the reverse order (you don’t have to read further).
I cut the patches from the pipe of the old muffler (it also has the same bends) - I cut it off from the muffler, cut it lengthwise and cut the patches to the required length. Then, using a hammer and anvil, I gave them the required shape. Now you can start welding work.
It turned out pretty good (the main thing here is tightness, not beauty). Now you can put everything back in reverse order. While the additional muffler is removed, you can tighten the handbrake if necessary, you’ll just have to remove everything again next time. Thus, this repaired resonator will serve me for several tens of thousands of kilometers.