Removal of diesel engine nozzles
What is a nozzle?
(The second name is "Injector") is a structural element of the engine injection system. A similar device is intended for supplying fuel in a dosage amount, its further spraying in the intake manifold (combustion chamber), i.e. Creating a fuel and air mixture. Equipment of this kind is used in all engine injection systems - and gasoline, and diesel. Today on modern engines use nozzles that are equipped electronically control Injection. Depending on this or that method of injection is distinguished by such types of nozzles as: electromagnetic, piezoelectric and electro-hydraulic.
Problems when removing the fuel injector from the diesel engine?
Diesel engine nozzles as the elements of the fuel system must function correctly. Faults of these parts violate general schemeon which diesel works. Many modern diesel engines Equipped with fuel system cOMMON RAIL. have a number serious problems When we reviewed below.
This is mainly due to the problems caused by the accumulation of exhaust gases or the consequence of moisture entry leading to the block. Also, on these engines, as a result of the extension of copper washers, there are practically welding of sprayers to the head of the cylinder head under the influence of combustion products. With the further operation of the car, the situation is exacerbated by the fact that the body of the nozzle begins to accumulate to the GBC.
Removing diesel nozzles by independently without damaging the fastening thread and the nozzle itself, in which case it is impossible. We do not recommend to produce independent extraction of the nozzle, as this can lead not only to the removal of the GBC, but also to buying a new block head. Why can self-removing diesel injectors you can look at the photo.
Attempt to independently remove diesel nozzle
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Independent removal of diesel nozzle. Broken thread fastening the nozzle. Further extraction of diesel nozzle only using special tools. |
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Unsuccessful attempt to pull out a dyeshel nozzle from the block head. |
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Depression thread fastening diesel nozzles. |
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When she was trying to drill, but the attempt was not crowned with success. The nozzle remained standing in its place. |
Problems when trying to independently get a scurrical nozzle of diesel:
Damaged or torn thread on the nozzles;
Burst the housing of the nozzle;
Zaking the nozzles in the well due to atmospheric moisture in the well;
Cocking the nozzles due to the breakthrough of gases and the formation of nagar in the well;
The housing remained the housing in the head of the cylinder block, etc.
How to remove diesel nozzard?
We carry out fast and high-quality, Mercedes, Opel, Renault, Nissan and many other cars. For many services, a serious problem is the removal of 4 and 5 nozzles Ssang Yong. Cayron, Rexton, Action, however, we produce their dismantling even without the need to remove the head of the cylinder block and the hood.
Removing diesel nozzles is made with the use of a special tool that allows you to reach the nozzle under any operating conditions.
Discontinued injectors
Having a lot of experience in we will make their removal of high quality and with smaller losses. In our work, we use a special hydraulic and thread-cutting tools European manufacturers.
A complete list of cars and engines on which we make removal of diesel nozzles.
There are tens of thousands of automotive in Russia filling stationsHowever, not all of them can boast the presence of high-quality gasoline that meets all modern standards and standards. Often in the fuel are not only particles of dirt, but also various impurities (phenols, sulfur compounds, acids, lead, etc.). In addition, poor-quality gasoline is often characterized by low octane number. All these factors extremely negatively affect the operation of the engine as a whole, and the stability of its individual components in particular, significantly reducing the life of all motor nodes. That is why every car enthusiast must have an idea of \u200b\u200bhow to remove and clean the nozzles on the VAZ 2110. Do not immediately begin the execution of these works.
To clean the nozzles, it is necessary to resort only as a last resort, when there is no doubt in the unstable engine operation vehicle.
Symptoms indicating the need to clean the nozzles on the VAZ 2110:
- There are problems with the start of the engine.
- Increases flow rate fuel mixes.
- Drops the power of the engine thrust.
- While driving in winter time Year of the car periodically moves jerks.
- Refuses one of the engine cylinders (the effect of the trim), etc.
The cleaning of nozzles must be carried out in the case of the appearance of one or more symptoms described above.
Options solving the problem
Today, every vehicle owner can stay at one of the three possible options for cleaning nozzles:
- take advantage of automotive chemistry;
- resort to the service station maintenance;
- self remove and clean the nozzles on the VAZ 2110.
In our article we will end in detail exactly the third version of the issue of the issue. Self cleaning is safer and effective compared to the effect that comes after applying automotive chemistry. The economic benefit from cleaning the nozzles with their own hands is also an obvious fact if it takes into account the rates operating at the maintenance stations. It is recommended to conduct this procedure only if you have at least a general idea of internal device cars. Otherwise, cleaning the nozzles is advisable to trust the specialists.
- Before starting work, you need to make sure that the engine of the vehicle has cooled.
- Then from the fuel pump you need to disconnect the power wires for the complete de-energization it.
- The next step is to maximize the pressure in the power supply system. To do this, the engine must be started, after which it will wait until he himself stalls on idling. This action should be repeated several times until the motor stops responding to attempts to start it.
- Now you can proceed to dismantling the fuel ramp. To do this, it is necessary to pre-de-energ it, disconnect the fuel supply hoses from it and disconnect all electrical devices from it (idle and pressure regulators, the position sensor adjusting the air into the engine ( throttle valve)). After that, with the help of a hex manner, you need to unscrew the two fastening bolts and gently dismantle the fuel frame with nozzles. During the removal of the frame, it is necessary to monitor the lack of overcasts that can significantly complicate the dismantling procedure.
- Next, you need to start removing the nozzles. To do this, you need to disconnect the fastening staples that lock the electrical connector (connector) and the fastening bracket that holds the nozzle at the seating area. In order to avoid dipping dirt on the details, the nozzles are best attached to gently put on the dry rag, and their seats are covered with something.
- Rubber sealing rings before the procedure is recommended to remove, and after the completion of cleaning, install new ones. The cleaning of each nozzle is best to start with the purification of its nozzles from various deposits. It should also be paid to the funk-shaped surface on which coke-shaped resinous sediments can accumulate.
- After that, you can move to the cleaning of the fuel mixture channel. To open the electromagnetic fuel valve, the power supply is required, preferably not exceeding 5-7V. To do this, you can use an adjustable stabilized voltage source or charger from mobile phone. Suit I. accumulator battery In this case, in this case, the stress on the nozzle should be supplied through the incandescent lamp that performs the function of the current damper to exclude the likelihood that the nozzle winding will be burned.
- The supply of electricity is carried out through two wires, into the gap of one of which you need to install the button, closing and opening the network, including and turning off that we imitate the operation of the nozzle in the engine under the action of pulsed electricity.
- You can use a can be used as a cleaning fluid to supply the cleaning fluid to the nozzle channel in which the liquid is located intended for cleaning the carburetor.
- For a sealing connection of the nozzle, the nozzle with a nozzle can be used a rubber tube, which must be securely fixed using a plastic clamp or any other available mounting on the nozzle of the spray and on the nozzle.
- When everything is ready, you can start feeding electricity to open the nozzle, in parallel by pressing the canter to supply the washing fluid. After a while, the torch of the jet of the cleaner exiting the fuel sprayer should become uniform and well distinguishable, which indicates a successful removal of Nagara. The cleaning procedure is considered to be made.
Expected effect
If the nozzle cleaning procedure was carried out correctly, the fuel consumption will decrease, the engine power will increase, even idlingAnd the start of the cold motor will occur without any difficulty.
Helpful information
Practice shows that if they were replaced on the nozzles of other manufacturers (even well-proven brands, the volume of the fuel mixture consumed can significantly increase.
Video
The procedure for cleaning the injectors is presented in the video material:
Removal and installation pump-nozzle
Sequence of removal and installation of pump-nozzles in a diesel engine.
1-frame of the radiator with mounted parts, 2-bolt (4pcs. Tightening torque is 8HM), 3-bolt (2pcs. Tightening torque is 20nm), 4-bolt (8pcs. Tightening torque is 20nm),
Make and postpone expansion tank cooling systems
-Catch the filling tube of the tank of the glass wool and a farture cleaner
-Catch screws 4.
- Drink guide rods in the right and left side member (2 pieces)
- Cut the screws 2 and 3 (left and right)
- Intercoule head pressure hoses
- Using the adaptation of the guide rods, the movement to-slide-slide the frame of the radiator is approximately 15 cm.
- To make the hoses and wires.
If there are no guide rods, the radiator frame can be neatly put on the pads, picking up their height. The photo shows an exemplary position of the radiator frame installed on the pads.
Removal of the nozzle:
- Hold the input manifold
-Catch cover, as well as the cylinder head cover
- Drop the crankshaft using the key so that the pair of cams, respectively, installed or shootable evenly pointed up. If there is no key for turning crankshaftcan be done differently. Subdomrote front wheel car. Enable the highest gear. Slowly hand rotate the wheel until the cams do the desired position.
-Slight controls of adjusting bolts -1- and unscrew the bolts so much so that the corresponding rocker is legally on the spring pusher spring pusher
- Rent fastening bolts -2-axes of the rocker from the outer part inside and remove the axis of the rocker
- Rent a fastener bolt -3-blocks and pull out the block
- Enroll the connector pump-nozzle scrap. To avoid skew, maintain a connector with back side Lightly pressing finger
- hold the remnant instead of a clamping pad in the side cutting pump-nozzle
If there is no filler, you can make it yourself. For example, such as shown in the photo.
-Sured tapping movements Extract the pump-nozzle up from the site of planting in the cylinder head.
Installation pump-nozzle
1-20 nm + trunge on 1/4 turn (90 °), 2-locking, 3- adjusting bolt (replace with each disassembly), 4- axes of rocker rocker, 5-stranded, 6- 12 nm + trunge on 3 / 4 turns (270 °), 7-pump-nozzle, 8- sealing rings, 9- thermal insulation, 10-0 ring.
During installation on a new pump-nozzle engine, it is also necessary to replace the adjusting bolt in the rocker. New nozzles in the kit are supplied with installed sealing rings and heat-shielding seal. If an old pump is installed, then it is necessary to replace with new round-section sealing rings and thermal insulator. Carefully make sure that the rings are not overwhelmed.
- Lubricate the rings with oil and extremely gently install the nozzles to the landing site in the engine cylinder block head
- insert pump-nozzle in the landing place must be uniformly pressed until
- clamping pad in mind in lateral cutout pump-nozzle
Attention!
If the pump-nozzle is located not at a right angle to the retainer, then the attachment screw can loosen at a certain time, which will lead to irreversible damage to the pump-nozzle and landing.
- twist a new fastening bolt in the block so that you can slightly turn the pump-nozzle
- Install the template, as shown, between the bearing socket and pump-nozzle
- Rotate the housing of the pump nozzle from hand relative to the template
Helpful advice!
If you do not have a template, then before removing the nozzle, measure the gap between the nozzle and the bearing socket (by selecting the plate of a certain thickness). In the figure, the arrow indicates the location of the gap.
- improve, if necessary, the position of the nozzle and tighten the mounting bolts. Tightening torque 12nm, followed by a correspondence by 270 ° (3/4 turn)
- Install the rocker axis and gently tighten the new bolts
- Tighten the internal bolts at first, then both external bolts. After that, trust in the same sequence with a torque of 20 nm + according to 90 ° (1/4 turn)
- On the adjusting screw of the nozzle, install the indicator as shown in the figure
- Turn the crankshaft in the direction of rotation of the engine so that the roller of the roller stops on the top of the drive cam. The side of the roller (in the figure of the arrow a) is at the highest point, the indicator (in the figure of the arrow B) is at the bottom point
- After that, you need to remove the indicator
- Then unscrew the adjusting screw from the stop back by 180 °
- Holding the screw in this position, tighten the countercount with a torque of 30 nm
- Insert the pump-nozzle connector into place and fasten the engine cylinder head cover.
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Since today fuel is not the highest quality, then many owners need to be replaced or. The nozzles fail due to dirt in fuel and a variety of impurities. Understand that they work poorly possible by engine behavior (power loss, increased flow Fuel, etc.).
Before dismantling nozzles on VAZ-2114, you will need to throw the pressure in the fuel ramp. The process is performed by disconnecting connectors with wires from fuel pump and then start the motor. Working machine in this position should not last. The procedure must be repeated until the car will not be able to start.
Disconnect the connector with wires from the fuel pump
Removal:
- It is necessary to dismantle the nozzle from the air filter;
- Turn off the wires from the nozzles;
Disconnect the electrical connector from the fuel ramp
- and the position of the throttle;
- Remove the vacuum hose from the fuel pressure regulator.
- Now you need to unscrew the tubes for the supply of gasoline.
Unscrew the gasoline feed tubes
- It is recommended to remove the gas cable, it will be more convenient to perform work further.
- Next, you need to unscrew the plate that holds fuel hoses;
With a screwdriver unscrewing the bracket on which fuel tubes are attached
- Now it is necessary to dismantle the fuel ramp and carefully remove it from the car. Injectors should be directed up;
We dismantle the fuel ramp
- Now it will be necessary to remove the nozzles themselves, disconnecting the brackets, which hold the electrical connectors and the nozzle itself.
- Thus, the nozzles will be deleted and can be replaced.
Remove the nozzle from the fuel ramp hole
Important! If the nozzle is washed, it is not recommended to put it on a dirty place.
- Rampa and holes in it is better to close anything so that dirt and other items do not get there.
Replace the nozzle is simple enough. When the old spare part should be installed new and fix it with a spring washer. After that, you can put the ramp in your place.
Video on the removal and installation of nozzles
It is important to remember that when dismantling and installing nozzles should be extremely careful.
Service workers are always advised when replacing such items:
- It is impossible to damage the nozzle when replacing.
- It is forbidden to disassemble nozzles for repair.
- It is necessary to ensure that the oil does not fall inside.
- It is strictly forbidden to lower the details to any means for washing. They have electrical connections in the middle.
- No need to rush to part with money for new details, perhaps the problem is solved by the usual washing of the channels.
- To do this, it is recommended to view the video according to the correct flushing.
Video about proper washing nozzles
Symptoms for replacement
Disabled nozzles
The reasons why the nozzles may not work, in fact, quite a lot. And below are described the most common symptoms:
- Difficult launch of the motor in any weather;
- The engine works unstable;
- Stall the engine at idle;
- High speed of rotation of the crankshaft at idle;
- Power loss ,;
- When pressed for gas, shocks or failures may appear;
- High gasoline consumption;
In case of contamination or failure breakdown, it should be replaced or cleaned. It makes no sense to repair it. It should also be noted that to date, nozzles cannot serve even 100 thousand km.
Clean the nozzles with your own hands using a carburetor cleaning fluid
Checking old injectors
Checking nozzles on the stand
You can also check not all the nozzles immediately, but each separately. To do this, you will need to give a current to the part and install a combustible container to it. During the flow of current, the valve will work, and gasoline will have to be sprinkled through the sprayer. But this test is inaccurate and it will be necessary to check on the stand anyway.
Selection of nozzles
Read more about choosing nozzles. Look in the material: ""
On the VAZ-2114 model, different nozzles can be installed, from different manufacturers. Depending on this, durability and their cost is also different.
Also the selection of nozzles depends on the working volume and number of valves. For 16 valve engines The performance of such details will be different than for. If the details are chosen incorrectly, then, most likely, gasoline consumption will be higher or the car will lose power.
If we talk about choosing, then preference should be given to brand BOSCH by number 0280158502. This serial number is suitable for.
Bosh nozzles catalogue number 0280158502
Nozzles fail not only because of its quality, to a greater degree of their performance affects fuel in which there are many dirt or large fractions.
Cleaning nozzles at maintenance stations will be no cheap. Therefore, if the check and cleaning is not done with your own hands, then you should think, it can be easier to buy new details and make them a replacement.
In Russia, as, however, in other countries of the former CIS, there is a huge amount car refinery. But far from each of them sell high-quality fuel, which meets all standards and standards. Most often, the composition of gasolines is not only dirt, but also different impurities and substances. These are phenols, sulfur, various citric acids. In addition, low-quality fuel is distinguished by a small octane number. Each injector owner must know how to shoot nozzles. These are useful knowledge that can be useful when posted a supported car.
Symptoms of clogged injectors
During the use of the car injectors, the property is lit. On machines, the mileage of which is 200 or more than thousands, they may fail. Often the reason for the exit of the nozzle is the effect of high temperatures. Inside this element is covered with lacquer sediments. As a result, problems appear in the process of starting the motor, the engine troit, works unstable in all modes. Because of these sediments and pollution, the ability to skip fuel is strongly disturbed. Problems arise in the process of opening and closing the nozzles. All this leads to one or several specified symptoms.
Where are located
Injectors on the injection motor internal combustion are in the fuel ramp. Their number is equal to the number of cylinders in the engine.
When checking work
Nozzles responsible for feeding fuel can be operated quite a long time - manufacturers indicate at least 100-150 thousand mileage kilometers. But, given the quality of fuel and untime replacement Fuel filters, the need for checking and cleaning them can occur already in 80 thousand kilometers. 
The need for dismantling appears most often closer to 100 thousand kilometers. The nozzles are calibrated, tested, and if necessary, change and clean. Sometimes the cause unstable work The engine can only be one element. At the same time there is no need to remove all the details. This is especially true for diesel engines, where the work process is much more complicated compared to a gasoline analogue.
Disassembly injectors for diagnostics
Let's see how to shoot nozzles to test them. To dismantle, you will need a standard screwdriver set, wrenches, pliers, an injector or carburetor cleaning agent, as well as rags.
Consider the removal process on the example of VAZ engines. So, the first thing you need to lower the pressure that is formed in fuel system. On most modern cars There is a special pressure regulator - it is on the fuel rail. It is nothing more than a special valve that can be pressed. As a result, the fuel from the ramp will go outward, and the pressure level will begin to fall. 
Gasoline in the nozzle is supplied at a sufficiently high pressure, so when working with them, the precautions must be observed. Jet of gasoline or diesel fuel It may cause significant harm.
When it was possible to reset the pressure, you need to remove the fuel ramp. To do this, turn off connectors with wires. You can remove them using special fixators, which are an elastic bracket to which you want to press. Next, the screwdriver shifts the clamp along the direction along the ramp. After that, you can remove the nozzles.
Many car owners who do not know how to shoot nozzles, try to pull them out. But they need to be extracted. Disassembly is carried out after small turns or shaking. Next, with a screwdriver, sealing rings are removed - they are located on the sprayer of the nozzles on its enclosure. It is worth remembering that these rings can be operated only once - if they were removed once, they are subject to replacement.
Removing diesel elements
Nozzle The fuel diesel engine is also susceptible to failure due to fuel quality. Removal process B. this case is different. The main feature is that this element is screwed into the engine as the ignition candle. Operation of the nozzle under conditions of exposure to high temperature leads to the hardening part to the engine of the engine cylinder block.
The nozzle accresses due to moisture falling into the well (there, where the element is installed). Next, the well is stamped due to breakthrough there exhaust gases. Also, the Nagar is actively accumulated on sealing rings. Removal process fuel injector from diesel unlike gasoline motor It assumes the presence of additional special tools and pullers. With the help of removals, you can reduce the risk of damage to the thread, the destruction of cabinet parts. 
After overclining the thread to unscrew the item is very difficult. In the process of dismantling, the housing can simply burst. In this case, it will only have to drill the part of the GBC, then perform the restoration of the thread and other manipulations. Those who do not know how to shoot the nozzles, it may be necessary to restore the head of the cylinder block. It must be remembered that the nozzle is an expensive item. You should carefully unscrew the item from its landing place - this is the entire dismantling process.
Check
There are a lot of ways to check the nozzle. These are handicrafts, as well as testing methods with the use of special equipment. In the case of independently check, you can only estimate the opening / closing of the nozzle. You can also make sure that the injector does not pour and transfers fuel. Also in the course independent check You can estimate the quality of spraying. Not many know how to check removed nozzleBut it is enough just to connect the power and skip through it a fuel or a cleaner. 
As for the diagnosis with the use of professional stands, this equipment allows you to define more parameters. This is the accuracy of the triggering, as well as the efficiency of all the injectors and each separately. This allows you to accurately and objectively evaluate the operation of the injection system.
Cleaning
We know how to remove the nozzles from the engine. You should also find out how the process of their washing and cleaning is carried out. You can wash them in two ways - with removal and without removal. More effect can be achieved only with washing with removal. 
The most common method assumes the presence of keys to dismantle, charged battery, two wires and terminals to them, as well as a liquid cleaner. The fuel ramp is removed, and then the nozzle. Wires are connected to the latter. Through the inlet to the nozzle is connected by a cleaner with a cleaner. Then pressing the sprayer and closes the wire on the battery, thereby acting solenoid valve. You can also assemble the booth to clean the nozzles. But it is very long and expensive.
How to clean the nozzles without removing
This requires a flushing cylinder. It is made independently. Also need a compressor and pressure gauge, the hose that will be connected to the fuel ramp. In the flushing cylinder pour liquid to clean the nozzles, the cylinder is connected to the system. Next launch the motor and include the compressor. Cleaning will be completed when all fluid generates.
That's how to rinse nozzles without removing. The minus of this technique is that there is no possibility to control the level of pollution, as well as the degree of cleaning. But this operation requires the least time and effort.
