Gelzovka seating Pump nozzle Touareg. Repair of fuel injectors of diesel engines

Evgeny Aleksandrovich fats
Deputy Director for Development
LLC "Automoderer"

The article is popularly described on the main faults of the electronic pumps installed on the general-saturated diesel engines of general purpose, the causes of their occurrence and currently existing solutions for the need for repair fuel system Engines trucks, buses and special equipment equipped with data nodes. The article explains in detail various aspects in one or another choice.

Pumps - nozzles: malfunctions and repair.

I will, perhaps, somewhat unusual, from the question of allegory: Answer yourself, when you fail one or more nodes of the transmission of your car, you are ready to leave the car of the service company and buy a new one (or renovated in Europe, but at the price of the new )? If you do not lose time, this article is not for you.

Increasing the profitability of the enterprise is one of the main tasks of the managerial management. And I will not open America, if I express the idea that it is possible to solve this task in its own two ways: an increase in the arrival part or a decrease in the so-called bones (that is, reduced costs). And if the current or planned state of the market is affected to a large extent, a reasonable reduction in costs is completely depends on the knowledge and professionalism of the enterprise personnel.

The purpose of writing this article is to familiarize the wide range of stakeholders who are in operation heavy automotive techniques of VOLVO, Scania, Daf, Iveco, Mercedes, Hyundai, Renault, the fuel system of which includes electronic pumps - nozzles, as well as special construction technique, passenger transport with "Caterpillar" engines, perkins whose fuel system has electronic pumps with hydraulic drivewith existing in this time The capabilities of choosing the optimal solution in case of problems with these nodes.

From the history of the pumps.

In the 80s of the last century it became clear that further improvement of the characteristics of the fuel equipment diesel engines By controlling their work, the mechanical way becomes extremely problematic and leads designers to a dead end. Upgrade requirements: an increase in the specific power, an increase in the injection pressure and the improvement of mixing formation, the compactness of the equipment itself, the introduction of environmental norms, as well as the rapid development of electronics contributed to the creation of individual pumps and pumping sections for each cylinder diesel economy With a block of electronics, managing the work of this product. To understand what way the fuel apparatus has made over these years, it is enough to compare the main external characteristics of the fuel system, for example, engine Yamz 236 (TNVD-nozzles), which appeared in the 60s of the last century: 1 Injection for the working cycle, injection pressure 150 bar, fuel consumption 28 l / 100 km with engine power 180 hp and the fuel system of a modern diesel engine (using pump-nozzles): up to 4 injections for the working cycle of the injection pressure of the injection to 2,500 bar, the fuel consumption is about 30 l / 100 km at a capacity of 400-480 hp That is, the specific power rose almost 2 times, and the emission norms harmful substances Reduced ten times.

The pump, which includes the high pressure pump, the nozzle, power drive and the dosing valve assembly, has advantages in reducing the duration of the fuel route, which is under high pressure, increasing hydraulic efficiency, reduce its own mass. It has an enlarged injection pressure up to 2500 bar in the latter generation pumps. Instantly responds to the commands of the motor control unit collecting and analyzing the current information removed from the external sensors to determine the necessary quantitative and time characteristics of the fuel injection. This allows you to get optimal power values \u200b\u200bat a given working mode, significantly save fuel, provide minimal emissions to the atmosphere, reduce the level of noise operation of the engine. The pump is more compact, it provides an additional free volume in the engine head for the installation of other parts of the engine and is able to provide the operation of the DVS according to environmental requirements "Euro V".

We consider the most common types of pumps on the territory of the Russian Federation and CIS countries: this is directly "pumping pumps" / (EUI european classification) and the "pumping sections" / (EUP on the European classification), the only fundamental difference of EUI EUI is that the pump sections are provided by the pump, which is located separately from the nozzle and has a drive from the cam shaft, located either in the block or in Cylinder head head.

Briefly, the principle of EUI and EUP is as follows. Solenoid valve The control is closed, receiving an electrical impulse. Plunger creates pressure and fuel injection through a sprayer to the camera combustion of DVS. Further, all according to the laws of the genre of ordinary diesel engine: ignition fuel mixes, which, according to the laws of thermodynamics, makes a certain work on the movement of the piston, and, through the reciprocating mechanism, transmits the working time to the Crankshaft. Everything seems to be just familiar to the rig.

• the managing electromagnet receives a command-electrical impulse from electronic block Motor control - the movement of the valve. An operating chamber is closed with a fuel cutting off the highway.
• plunger creates pressure for fuel injection
• injection occurs through a sprayer, creating a "fuel cloud"

It turns out the main mechanisms that are subjected to the greatest loads and subject to the most frequent failure: the valve node, which is actually controlled by the fuel injection process in these systems and a sprayer, performing directly injection and appropriate for this cylinder spraying.

Classification of faults

Unfortunately, some of the car owners with these fuel injection systems came across and continue to face problems that can be systematized in the following main groups: the inability to launch or difficulty launching the engine / overrun / uneven engine operation / power loss / increased exhaust smoke. All this indicates violations in EUI or EUP sections. You can classify several most common causes of violation of the correct work.

For a better understanding, we can say that the components mechanical part The control of pumps are remote relatives of the parts of the gas distribution mechanism operating in the head of the DVS block with the principal difference that the working body in our case, instead of the air mixture, is diesel fuel with its strictly outlined physical properties and under pressure ten times higher.

In this way:

On the latter (the most rare breakdown) place: the failure of the plunger associated with mechanical destruction, the destruction of the spring and the housing of the pumps. Comment here is something too.

Next, follow the malfunctions of the electromagnetic part of the control. The failure of the specified node leads to inadequate operation of the pump - nozzles on a certain mode of operation of the engine and up to full failover. However, due to the reliability of the elements of this part, such damage subject to the carrier of the manufacturer's requirements to the fuel used is quite rare.

The next place for the failure of the sprayer. Disorders in the spray part have an impact on DVS smoke, a significant increase in fuel consumption and deterioration of environmental indicators. Problems with a sprayer, in most cases, do not affect the reduction of the power characteristics of the engine and its replacement is not a great technical complexity.

The most frequent (basic) cause of the failure of EUI and EUP sections is the destruction of the valve node, its mechanical damage. This reason I would like to stay in more detail. Since the valve compresses fuel to its closure, it creates a fairly large load on the valve seat and the cutting edge of the valve plate. It must be said that this mechanism is very reliable when using high-quality fuel (we met cars with a mileage of 1.5 million km and with relatives, i.e. installed at the factory, pumping pumps). The accuracy of the manufacture of parts of this mechanism reaches 0.25 μR with the gaps of precision nodes of 1.5- 2 μR. To present this magnitude, it suffices to say that the thickness of the human hair is about 50 microns.

What is the cause of damage to the valve node? Of course, the large accuracy of modern fuel equipment products requires the appropriate quality of the fuel consumed. This refers to the purity of the fuel entering the pump and its high-quality component. What is meant by this? Mechanical impurities present in the fuel must have dimensions of no more than 5 μR and their number cannot exceed a certain level, otherwise these particles damage the valve assembly with impaired its tightness, or foreign particles begin to "grow" on the valve assembly and it will again lose its tightness. . The result becomes a significant overrun of fuel when the power characteristics fall.

Sheets on the valve, discovered during defecting pump-nozzles - the reason for the output of the node.

Consequence of fuel from mechanical impurities.

Since we have some part of the year of the temperature of the negative, we face the problem of violation of technological discipline when using fuel in low temperatures. Unfortunately, we have repeatedly treated carriers with chains of fuel equipment, which in which fuel tank There was fuel with a sharp smell of gasoline, acetone and even hydrogen sulfide. What was added to such fuel, in which quantity it remains only to guess. But it is necessary to understand that the geometry of the valve assembly, the node itself was constructed and was made taking into account the physicochemical properties of diesel fuel, its lubricating characteristics and ability to form a film. The valve shape is calculated and is ideal for cutting under a large pressure of diesel fuel with its physical characteristics. Suffice it to say that the solvent "dries" the valve assembly, the presence of gasoline issues the boiling of fuel (importing); For the presence of various additives in the fuel in the fuel, as well as prohibited to use, indicates the formation of a light fly on the working surfaces of the valve node, which also leads to mechanical damage and the output of the product. The physicochemical processes in which the specified flare is formed, we have not been studied. It remains only to assume that crystallization and falling out of certain substances occurs under the influence of pressure and temperature. Talk about the formation of integral deposits, exposure to water is unnecessary. This is known to every novice carrier. However, the appeals from this no less becomes. Statistics shows that in almost 100% of cases, when replacing the valve node, a spray replacement is required.

Once again about operating conditions.
Fuel systems of modern diesel engines are quite reliable. Suffice it to say that at the moment the manufacturers produce pumping pumps, calculated for the entire operation of the OI (resource from 700,000 to one and a half million kilometers). But, like any technique, these products require an appropriate attitude, strict compliance with the manufacturer's requirements. We have already talked about the requirements for fuel. All other requirements are compliance. technical Conditions To ensure the supply of pure and high-quality fuel to the pumps on the car itself. Let's start with the beginning: the use of self-made (cooked in handicrafts) of steel fuel tanks is not allowed due to corrosion and corrosion products to enter pumps. It is necessary to use fuel separators, for our conditions - preferably heated, which significantly improves the physical characteristics of separation. Qualitative separators detain solid fractions up to 10-15 microns in size, ensure the proper operation of the fuel purification filter (the flow of solid fractions at low fuel pressure) is significantly weakened), low pressure pump is saved. It is necessary to apply the original (or, in extreme cases, high-quality and trustworthy) filters of fine fuel purification. It must be remembered that ensuring proper filtration in 2-4 microns is possible only when using a high-quality filter and prepared fuel with not exceeding the limit values \u200b\u200bof the mass fraction of solid phrases. Replacement fuel filters Under operating conditions in Russia, the CIS countries should be made more often recommended. plant Manufacturer Period. Cases are known when the cause of the flow of pumps was the conclusted filter elements of the fine cleaning filter. Thus, the use of proper quality fuel and competent concern for the fuel system elements is a pledge of long and reliable operation of the diesel engine. And, if the refueling of high-quality fuel is a kind of roulette in our conditions, the service of the fuel system elements is completely in the carrier's hands.

Where to contact? Part One: Officer.
Repair the pump - nozzles or buy a new one - this is the matter to which we will try to give an objective response in this article.

What happened and with the worsening of the work of the pump - nozzles or their way out of order vehicle It rises in front of the dilemma: what to do, that is where to go? Some time ago, the choice was limited to installing new pump - nozzles, as a rule, on the corporate service. This path has its own way. positive sidesBut he has one significant minus: the price. And the price of this - by the way - consists of many associated parts. Regardless of the fault, the pump is nozzles, the official service does not have authority to repair it, that is, the functions "removed / put / set up" are fixed behind it. In this case, regardless of the cause of the malfunction, you pay for the entire node as a whole. For example, a sprayer, just in the seventh-tenth of the total cost of the pump - nozzles, and weighing 20 gr. - Be kind of paying seven-ten-fold for all the product, add to this VAT and customs payments to What you, in principle, was not needed, the transport component (how many of the same sprayers will enter the box of the pump - nozzles weighing 1,5-2 kg? Believe me, it is enough for one or three and even five Sets for five cars). Yes, of course, the client additionally gets a customized product, taken out of a beautiful corporate packaging, and also a guarantee that is supported by a wide network of authorized stations (carriers are increasingly faced with the fact that, in case of determining the use of low-quality fuel, as the causes of failure - The nozzles warranty is canceled. And it is correct). But isn't it too big? In the absence of an alternative - no. Are there any other ways?

Where to contact? Part Two: abroad will help us.
Of course, attempts to create an alternative to this path were. And the first is a banal purchase of new, more precisely to say recovered (as new products on secondary market Practically do not come) the pumps abroad with a further installation in the native homeland. The price is already much cheaper, but we are not talking about the guarantee. And if that, then go back to the thirty lands. But I will not crush the soul and note that the quality of products is fully consistent and the overwhelming majority of such products work at the proper level. You only need to understand where to purchase and how to deliver.

Where to contact? Part Three: Kustarshchina.
And, if you do not consider the banal purchase of new / restored pumps abroad, the results of attempts to reanimate the pump - the nozzle differently as a bushes before the recent past it was difficult to call. Causes: no stands for test operations, tests themselves, lack of adequate spare parts or the use of poor quality, lack of experienced staff for setting up equipment and work on it. At best, the results of the work became the brief operation of the engine (as a rule, the resource rarely reached up to 10,000 km) or satisfactory engine operation only on some operating modes. Answer it, what does it mean for a modern carrier resource of 10,000 km, or normal work only on parts of the engine modes when the car does not develop due power or is there a significant fuel consumption? This means: Significant additional expenses, uncertainty and blow to the reputation of a reliable carrier - that is all that helps become not competitive in modern conditions. Is it necessary for the carrier?

Where to contact? Part Fourth: Civilization.
In a favorable for owners heavy truck The period of the rapid development of the market and the lack of transport carriers of the crowd went to an authorized dealer who removed faulty detail, replaced it to another (as part of the restored, but abroad and set in corporate packaging) and took the proper amount for it. This aspect has already been considered above. But the crisis of topics is good, that it will notice all the apparent and makes it possible to arise something new.

By that time in Russia, the largest fleet of the second half of the 1990s of the 1990s was formed in Russia. With such a fleet, neither the countries of Europe, nor the United States cannot be compared (well, it is not customary to operate techniques with such runs). And if we consider only the fleet of heavy machinery under the Volvo brand, the number of units in the native fatherland has long shielded a 50 thousandth front. Of these are used, over 5 years old, over 30 thousand trucks walk on the roads of Russia. Taking into account the quality of Russian diesel fuel, the need to repair the pump - nozzles at least once every 400-5 thousand kilometers, we obtain that only the amount of heavy trucks of this brand for repairing the pump - nozzles is over 15 units per day. In reality, even more. This park requires maintenance at adequate prices, but appropriate quality.

Conditionally, the equipment used in testing and repairing pumps can be divided into 2 categories. The first category is the equipment recommended by the pump manufacturers themselves, which have the possibilities for controlling and removing all the necessary parameters, as close as possible to testing the product directly at the factory. Equipment related to this category has high quality inspection and testing, high performance, unification, but has one significant minus: high cost.

The second category is equipment manufacturers that do not have recommendations from the manufacturer pump - nozzles. Such equipment is significantly cheaper and it is produced by a number of companies in Italy, Greece, Turkey. Equipment from this group also allows you to test the pump - nozzles, but, alas, no longer with the quality. The fact that they are not possible to see the same amount of indicators of the test product, rather than on the equipment of the previous category. That is, part necessary characteristics Pump - nozzles will be hidden from the eye of a specialist. In addition, these stands were not authorized or recommended by the manufacturers of the pump - nozzles, and therefore de-jurahs cannot be considered as an official alternative, authorized service, for example, "Volvo".

Currently, over 90% of the market pump - nozzles are divided by the following manufacturers: Delphi (Delphi) - earlier Lukas, Bosch (Bosch), Kammins (Cummins). The first 2 companies are conducting a policy of developing a network of authorized service centers for testing and repairing pumps - nozzles in various countries of the world. Each manufacturer has its own policy, their successes and disadvantages.

Large development Received a network of service centers "Bosch". Sometimes in the city with a population of 100-150 thousand people there are 2-3 such services. And this is good. But not many Bosch Diesel Stations have full equipment for testing and repairing pumps. Also, the company Bosch, unfortunately, does not supply a part of the nodes required during the repair of EUI and EUP. As a result, it is not always possible to get full repair of these systems. It should be noted another significant factor: the presence of due experience and knowledge from the employees of the service station.

Bosch production booth EPS815

At the moment, the only manufacturer of pumping pumps for energy saturated diesel engines used on trucks and special techniques, which supports authorized repair and supply of all necessary components for most etho pumps production - a company "Delfay". This company is in the Commonwealth with a test equipment manufacturer by Hartridge (Hartridge), the United Kingdom have extensive experience in creating a network of diesel services in various countries of the world. Recently, the company is trying to go out on russian market To create and authorize the network of diesel services, which would be able to diagnose and perform repair and restoration operations pump - nozzles at the level of the quality of the new product, while giving the necessary guarantee and reasonable price.

AVM2-PC Stand approved by Delfay

Delfay in cooperation with manufacturers of test equipment "Hartridge" has developed and offers a program covering a full range of repair and recovery pump - nozzles of the series "A" and "E-1". In the future, this year is the creation of software and the release of components for the products of the E-3 series (the so-called "four-contact" pump - nozzles). The specified Delfai program includes recommended test equipment, tools, staff training, diagnostics, tests - plans, lists of parts, components themselves, which - according to the company's policy, as opposed to Bosch policies - should be distributed only among official partners of the company. All of the above creates a fairly attractive proposal for recovery, as an alternative to installing new pump - nozzles for diesel engines: Volvo, Renault, Hyundai, John Deere.. According to the information currently available in Russia there is only one authorized service "Delfay" for restorative repair pump - nozzles and another application adopted by the Office of Delfay on authorization on this kind work.

It seems to be stronger, but there are no so many reasons for optimism. Despite the increase in the number of specific services, the queues on many of them are not observed at all. It seems that the area of \u200b\u200bcompanies providing such services wide; However, in fact, this world of narrow, the quality of work is transmitted by carriers from mouth to mouth. That's just the customer to fool in his expectations wishes only one day. As an example, testing on the stand. When communicating with drivers more than once had to hear the following from them: "They said at such a service:" You see, everything passes through the tests. So all is well. And the car does not go. " In other words, the carrier is necessary that the car would work properly. What does it match the tests? But no, the masters will persistently say that everything is good, what questions may be. The carrier waves his hand and go to the official service and will pay again for the entire nozzle plus transport plus customs plus surcharge for the brand (see part of the first "official"). And the workshop will wait for the next client, who, with the second car, will never come to them again and others will advise to travel around the half.

Meanwhile, the quality of the restored pump can not be given to the original due to the use of recommended test equipment, original components, software, and sometimes exceeding the original due to the possibility of initial adjustment of the recovered pump into several other characteristics of Russian diesel fuel.

Unfortunately, the services that understand the whole process know the technology, use appropriate equipment, and high-quality components, properly carry out services for diagnostics and restorative repair pump - nozzles, can be counted on the fingers of one hand, and the country is large and the need for services such Services are also large (see above). So there are drivers in the "Sarafan Radio" where the fuel systems for heavy equipment can be repaired qualitatively and relatively inexpensively.

I am confident that the information provided in the article will be useful to the reader, providing him with an overview of current opportunities for this problem, for the author of the article is a supporter of the idea that a person must make decisions and bear responsibility for them. And the task of a specialist of any sphere to provide the client with the necessary and true information.

Why exactly repairs?

Why exactly repairs?

Prices for restoration of nozzles and repair pump nozzles

In cases of the failure of the engine spare parts on official services, almost forced to buy new ones. But the best option There will be a restoration and repair of diesel nozzles, so much benefit is achieved. When repairing in a specialized service with original Bosch equipment occurs restoration of injectors Diesel to factory parameters. The resource of such spare parts reaches 80% of new ones. And in the presence of warranty and post-warranty support, the owner in the event of a repeated breakage receives qualified recommendations. Restoration and repair Pump nozzles in specialized Services It takes one or two, or even half of the day. And the search for a complete set of new parts suitable for the engine is problematic, or you have to wait a few weeks of delivery from Europe.

The cost of restoration and repair nozzles and pump nozzles

It is quite expected that the prices for recovery of pump-nozzles differ in different car services, but do not be necessary for the maximum low price. The lower the price of services in the service, the greater the probability that you will earn, increasing the cost of work on the results of the diagnosis. For example: "For the complexity", or adding required spare parts at high prices. Therefore, when choosing a service for repairing pump-nozzles, the price is also an indicator of quality - it should not be suspiciously low and must be fixed. In some state, your detail was not, the voiced cost of repair should not increase.

Repair pump-injectors in our service

We invite you to repair the details in our service. Our workshop is equipped with professional equipment from Europe, including original Bosch stands. Many years of experience allows our mechanics to perform work not only quickly and on time, but also to restore spare parts that are considered unreprofitable. If you need to replace valves, sprayers, seals and other parts, we use original Bosch spare parts, while the cost of restoring nozzles does not change and remains strictly fixed. The cost of repairing pump nozzles depends only by their quantity - a significant discount is provided when repairing the kit. All repaired parts are provided with an official guarantee of six months and issued test plans for work. After the expiration of the warranty - we carry out free diagnosis We restored the details.

Helpful information.

the site is a car service aggregator. We ourselves do not repair cars, we help to find a service center, which will work quickly, efficiently and inexpensively. The service "Restoring seats under the pump-nozzle in Moscow" is performed in several service centers. You just just send a request to the car service and the wizard will make you suggestions for the price and timing. You will not receive any excess call. You yourself will choose that service in which you want to repair your car.

Car service where the service is provided - restoring seats under the pump-nozzle, are presented below

Factors affecting the price of services - Restoration of seats under the pumps in Moscow

It is well known that the cost of repairing the car depends on several aspects. Among them you can select the following:

• the cost of spare parts (original, China, alternative producers);
• personnel qualifications;
• equipment level of a hundred (presence of paint chambers, lifts, specials. tools and equipment, etc.).

For example, the price of services - the restoration of seats under the pump-nozzle in Moscow will also depend on factors such as age, brand and car model. We are confident that car services will condemn to your order and offer best conditions. The centers have a discount system for regular customers.

In the work of special equipment, as well as heavy trucks, as in any passenger cars, sooner or later, problems associated with the functioning of the engine and other auxiliary elements arise. In particular, in this article we will talk about the restoration of pump-nozzle. Buy new nozzles today is not a problem, they can be ordered to sprups or in any other store. But if there is no desire to spend money, you can always try to restore the workability of the elements failed.

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Adjustment pump-nozzle

NF adjustment procedure on engines TDI and similar aggregates is performed as follows:

1. First dismantled valve lid.
2. The crankshaft must be checked until camshaft Do not press one NF. At the same time, the rocker rises up.
3. Then the fixing nut should be slightly unscrewed, into several revolutions.
4. The adjustment bolt is spinning until it stops until it hits and does not click on the NF.
5. Next, the adjusting bolt should be rotated 180 degrees against emergencies, thus reducing the pressure on the NF.
6. After that, holding the bolt, you should tighten the fixing nut. Now it remains only to turn crankshaftWhile the distribution will not click on the NF (author of the video instruction on step-by-step adjustment pump-nozzles in the car Folkwagen - Bigman-Garage channel).

How to restore NF?

Immediately note - the procedure for restoring these parts is possible only on a special stand.

Therefore, as a rule, car owners seek help for specialized hundred:

1. First do the diagnosis, for this dismantled NF should be tested on the stand. A new spray element is mounted on the device, and then the stand checks the operation of the NF in different modes. In the event that the new spray elements NF "misses" about 10% of fuel, but no more, this suggests that the problem can be solved by replacing the component.
2. If "nothing" is more than 10%, it speaks of a large wear of the valve, that is, you need to perform a otemont NF. In this case, the bushing should be separated to the required repair size. As a rule, the diameter must be increased by 50 microns, this will allow you to get rid of the production.
3. The valve should be covered with chrome, and then poll up to the size set by the standard.
4. You should also produce grinding and sleeves, the same applies to the plunger. However, this item does not need to be covered with chrome - nitrite titanium is applied to it, for this purpose the method of vacuum spraying is used.
5. If necessary, the valve itself can be treated with nitrite.

Photo Gallery "Disaster and repair of the NF"

Many experts believe that flawers do not help, and recommend not to spend money, but if you have a problem, contact diesel services.

The technical centers "Diesel-Pro" provide services for repairing nozzles for diesel passenger and trucks. In Moscow and the Moscow region, do diagnosis and maintenance fuel injectors cars different marks. For services rendered provide a guarantee.

When identifying any phenomena associated with malfunction of a diesel engine nozzle, auto mechanics are strongly recommended to immediately contact the service center. Cheaper and easier to pay for their professional flushing and adjustment than the time after buying and installing new spare parts.

Prices for repair of diesel nozzles

Causes of malfunction of nozzles

Nozzles are needed for spraying diesel fuel in the combustion chamber. The functionality of the entire fuel system of the car directly depends on their performance. Properly adjusted nozzles allow you to comply with fuel economy. The required amount of fuel, several times behind the tact of a high pressure allowed to achieve maximum efficiency from the combustion process.

The slightest changes in these details lead to phenomena, noticing which the owner of the car must urgently contact the service center. Signal manifestations of malfunctions in nozzles are:

• interruptions in the work of the power unit;
• excessive smashes of exhaust gases;
• engine power loss;
• fuel consumption;
• speakers and noises when working a motor.

One of the cause of the nozzle breakage is that it is not completely clean fuel at refills, and the diesel fuel with an unforeseen standard "additives", including water and gasoline. As a result, nozzles fail much faster than the manufacturer declares.

DIY repair and replacement of diesel nozzles is fraught with problems during a ride. Repair nozzles according to the manufacturer's requirements, you can only in a specialized auto center. Our company has all the necessary equipment, experienced professionals, original stands and computer programs for high-quality and fast repair of any diesel injectors.

Before repairing the mechanical nozzles, their mechanical cleaning and checking on a special bench is performed, a torch shape and spray pressure is checked.

Before standing on the station nozzles, Common Rail is washed in an ultrasonic bath, checking the resistance of an electromagnet with a professional multimeter and removing remnants of diesel fuel and impurities on the mechanical stand.

After preliminary procedures, the Common Rail nozzle is tested on the primary check of EPS 205 or the other. When checking, the following parameters are analyzed:

• tightness of the nozzle without signal supply (LEAK TEST);
• volume of supplied and returned fuel in maximum load modes (VL), medium modes (VE), idling (LL), preliminary injection (VE);
• starting mode and piezoelement resistance (for piezoquormoin).

If the actual parameters of the test plan fails, the nozzles are disassembled by the Master by the nature of the damage, the causes of failure are determined based on a special catalog of faults.

Repair Injectors Specialists consider one of more complex work In service diesel car. Under exercise repair work Our team adheres to the rules of the manufacturer and focuses on its standards.

For the convenience of customers, we offer buy nozzles for diesel engines in our online store. Auto mechanics "Diesel Pro" have a rich experience, which allows us to quickly, effectively maintain and repair various diesel cars. We do not just offer repair or replacement of nozzles, but also justify the need.

Questions from our customers

Question: It is advisable to repair only 1 problem nozzle or better change everything at once?

Answer: In this case, you need to know the status of all nozzles. You can solve this issue only after testing / diagnostics on the stand.

Question: How often should it clean the nozzles on the diesel and whether this procedure is obligatory?

Answer: This procedure is quite useful and prolongs life to your engine, besides, it facilitates the launch of the engine in cold conditions. It is necessary to carry out nozzles, but without using aggressive chemistry, we remove the nozzles and mine in ultrasound.

Question: I drive a car Nissan Pathfinder.. Recently noticed that three of the four nozzles flow. What needs to be repaired and what time will it rise?

Answer: Most likely it will be necessary to repair, otherwise the saddle on the head will be prohibiting. There is a breakthrough of crankcase gases through nozzles and gaps. Cost of work: installation / disassembly - 8000 rubles (a lot of work due to uncomfortable location); Also clean the wells and sneak the saddle. Price washer 600 rubles. + gasket. All these procedures must be performed only on the cooled engine. So, on arrival in our technical centers, you will have to wait until the system is cooled.