Delayed action pump: what VAZ is keeping silent about


Element malfunctions

The pump consists of several elements that ensure its operation. In particular:

You can determine the malfunction of a part by ear. Pay attention to noise from the timing belt. If you hear a rumble, then the reason may lie in this element. In addition, when the pump fails, the cooling of the car sometimes worsens, which automatically leads to increased overheating. Let's look at the main list of breakdowns that can plague the pump:

  1. Autonomous rotation of the impeller.
  2. The appearance of backlash.
  3. Bearing wedge.
  4. Element leakage.

In addition, it is recommended to replace the part after reaching certain mileage indicators. The standard is 100,000 kilometers. However, low-quality parts can hardly withstand 10,000 - 15,000 kilometers, so it is not recommended to save too much on the pump. Next, we’ll talk about which manufacturers’ products are worthy of attention.

Who to pay attention to

As a standard, VAZ cars are equipped with a pump manufactured by TZA. It is relatively good and can last quite a long time, but not all users are satisfied with its quality. An alternative solution could be Luzar. A trusted manufacturer that supplies pumps that are ideal for AvtoVAZ products. If you need a pump for a long time, Luzar may be a good solution.

If you prefer devices from foreign companies, it’s time to stop at SKF. A good option, characterized by an excellent price-quality ratio. Please note that you should not buy HEPU products. Its pulley is simply not suitable for Priora cars. A cheap but short-lived option would be Coram. This is a Chinese company that supplies inexpensive but very mediocre pumps.

Review of water pumps for Lada

There are currently a variety of brands and manufacturers of water pumps on the market; each manufacturer claims that its products are the best. We will try to impartially figure out what’s what, and consider one of the most popular items - a pump for front-wheel drive eight-valve VAZ cars.

To avoid any confusion, let's clear things up right away. Eight-valve engines on front-wheel drive VAZs were constantly modernized and changed, so the pumps listed below are suitable for all engines equipped with the so-called “eighth” timing belt. If we take it by model, then these are VAZ 2108, 2109, 21099, 2110, 21013, 21014, 21015, as well as Kalinas and Prioras of the first years of production.

Engine VAZ-21116


Consequences of a broken timing belt on an eight-valve VAZ-21116 engine.
The pistons show clearly visible marks from the impact of the valves. Consequences of a broken timing belt on an eight-valve VAZ-21116 engine. The pistons show clearly visible marks from the impact of the valves.

And it’s a no-brainer: if you change the belt, tension rollers and pump in time, then the risk of destruction, and even if it is not reduced to zero (adjustment for low-quality components), will become significantly less.

Malfunctions

Water pump for car

The causes of failure can be different, for example, bearing jamming or the formation of play. Sometimes it happens that the impeller begins to spin freely, but separately from the shaft. The pump also needs to be replaced if it leaks or becomes noisy.

Life time. A lot depends on the quality of the pump. For example, a low-quality and defective pump can last only 10-15 thousand km. The service life of a high-quality part is when the Priora runs 100 thousand km. and more.

The manufacturer installs a pump on the Priora, produced by the Russian enterprise Togliatti Automotive Units Plant (TZA). It has a long service life.

Unfortunately, recently sales of counterfeit pumps from TZA have become more frequent. Is it possible to distinguish a fake so that your Priora does not suffer?

A high-quality box should contain a pump, inside the box there should be a warranty card with stamps and the date of manufacture and a gasket. It is mandatory to have a holographic sticker on the pump.

Lada Granta pump. Engine index. Determination of malfunction and price

An important component of the Lada engine is the pump or water pump of the cooling system. This model features engines with the serial index VAZ-11183, VAZ-11186, VAZ-21126 (also with automatic transmission) and VAZ-21127.

This unit should be selected according to the part numbers. After all, the Grant pump is responsible for the safety of such an important engine part as the timing belt. Pump (water pump of the cooling system) Lada Granta catalog number – 21114-1307010-00, 21114-1307010-01.

You can do a self-diagnosis of the pump malfunction yourself. This will only require a visual overview of the CO water pump department. When dismantling the pump, it will be easier to find the cause of the breakdown. Determination of malfunction Grant, pump:

• Makes noise, an unusual hum of bearings in the pump section. • Leaks in the pump area indicate the need to replace the gasket. • There may also be leaks in the drainage section of the pump - this is wear on the seal. • If the pump impeller wears out/breaks, there will be poor circulation of coolant in the system. • If axial play of the pump shaft is detected, the bearing is worn out.

The water pump ensures proper circulation of coolant in the car engine. Thus, infrequent monitoring, in which you should pay attention to the coolant pump section of the Lada Granta - the pump and the units associated with it, will serve you faithfully. And your car is no longer in danger of engine overheating due to a sudden malfunction. Do not forget that the performance of the stove also depends on the quality of the pump.

How is the pump replaced on a Priora?

Replacing the Priora water pump. Warning! Do not turn the crankshaft or camshaft after the camshaft drive belt has been removed, otherwise the piston may hit the valves. Wear of the pump bearing (indicated by increased noise during operation) and leakage of coolant from the pump are the main defects of the water pump.

As a rule, repairing the water pump does not lead to the desired result, so it is recommended to replace the pump assembly. Replacing the pump is a procedure for performing actions that you can do yourself.

  • You need to disconnect the wire from the negative terminal of the battery.
  • Next, you should drain the coolant.
  • Then the piston of the first cylinder is set to the top dead center position.
  • Then the tension roller is removed.
  • The camshaft toothed pulley is removed behind the tension roller.
  • It is necessary to unscrew the 4 bolts and the fastening nut and start removing the rear cover of the camshaft drive belt.

Procedure for replacing the pump on 8 valve engines Grants VAZ 11183 (82 hp) and VAZ 21116 (87 hp)

To begin, we disconnect the battery as standard and drain the coolant. You will need keys 10 and 17 and 2 screwdrivers.

Also, replacing the pump on a Grant 8 valve is slightly different from the 16 valve versions. These are differences in the dismantling of protective covers; in general, dismantling occurs according to the principle of removing the crankshaft pulley and the rear timing cover.

When replacing or removing the pump to check, it is necessary to notice the gasket that connects the pump to the engine block. This is a prerequisite for the tightness of the cooling system.

If you have wondered what kind of gasket is on the Lada Granta pump, the answer is simple - it is mainly a paranitic gasket for the tightness of the system. Many craftsmen and car enthusiasts are sure that it should be lubricated with sealant. Don’t be lazy and compare pumps when purchasing and choose only high-quality, albeit expensive, products.

The purpose and general design of the pump in the Lada Priora car

An auto water pump (VP) or pump is structurally included in the liquid cooling system (LCS) of a modern car and is its key element. The main function of this part is to ensure intensive circulation of coolant (coolant) through the engine's fluid circulation system.

Thanks to this constant movement, the temperature of the liquid decreases and its ability to cool other parts and systems of the car is restored. As a rule, the water pump on a car engine is structurally located in front of the cylinder block. Its drive is carried out from the crankshaft through a special wedge-shaped belt or from the gas distribution mechanism (timing) using a toothed belt.

A special toothed belt ensures the functioning of the car's water pump.

General pump structure

The Lada-Priora pump is a fairly simple mechanical unit, which consists of several main parts.

The pump design consists of several elements, one of which is the obligatory gasket

The main components of an engine water pump are:

  • product body;
  • a shaft with an impeller and a special self-regulating oil seal, thanks to which the coolant is securely retained in the structure during operation;
  • pump shaft bearing on which the pump shaft is mounted;
  • drive pulley;
  • radiator fan (this part can be attached to the pump drive or in a separate electric drive version, without any connection with the car’s water pump);
  • gasket made of cardboard or special material.
  • Operating principle of the device

    The operation of the coolant pump is as follows:

    • with the engine running, the coolant that has cooled in the car radiator moves to the pump (in particular, to its impeller);
    • the gaps between its blades are completely filled with coolant;
    • due to the action of centrifugal force, the coolant is thrown by the impeller into different directions of the internal cavity of the HV;
    • through the technological hole, the liquid goes into the channels of the cooling jacket of the motor elements;
    • constant circulation of the cooling medium in the liquid cooling system is ensured.

    Design Features

    To prevent possible leakage, the pump body is installed on the engine cylinder block through a special gasket (for example, made of cardboard). The cooling fan, which is sometimes structurally located on the car pump pulley and driven simultaneously with it, is usually made of metal or durable plastic. To reduce operating noise, the blades of the structure are located at certain angles, in an X-shaped position, which corresponds to 110/70 degrees.

    In order to reduce the power required to drive the fan, designers use a special electromagnetic clutch. This device can turn off the fan when the coolant temperature drops to a level of 78–85 degrees Celsius. In this way, the operation of the engine cooling system is optimized, and the noise level during operation of the unit is also reduced.

    Signs of a pump malfunction on a Lada Granta car

    "Lada Granta" continues the best traditions of the automotive industry of the domestic plant, and therefore its design does not cause any particular difficulties in diagnostics. To identify a pump malfunction, you do not need to look at the instruction manual or contact the services of a service station specialist. There are only three signs of a water pump failure that the driver can identify on his own.

    The engine started to get very hot

    If the Granta, even in winter, starts to get very hot while driving, and the fan can no longer cope with cooling the engine, then this is a clear sign that the pump has failed. The thing is that the presence of coolant in the system does not yet guarantee engine cooling, since if there is no pressure, then the liquid simply will not flow to the cylinder block.

    You can confirm your suspicions in a fairly simple way:

    Wait until the engine warms up to its operating temperature.

    If only cold air begins to come out of it, then the circulation of antifreeze in the system is disrupted. Most likely, the problems are associated with severe wear of the pump impeller blades, and therefore you need to replace the pump with a new one as soon as possible.

    Instrument readings in the cabin indicate that the engine is very hot - this is a reason to look under the hood and check the condition of the pump

    Timing belt wears unevenly

    Often drivers, having decided to change the timing belt, are surprised to notice that it is worn out on only one side. Of course, this is not normal for the operation of a rubber product - the timing belt design is designed for uniform planned wear of each part.

    The timing belt rubs on one side due to the fact that the bearings on the pump shaft are loose . Accordingly, if there is asymmetrical wear on the timing belt, this indicates that the pump is about to fail. Usually, if the bearings become loose, the driver hears a loud crunching or banging sound from under the hood while driving.

    Even after a short period of operation, the belt will begin to wear out on only one side if the pump bearings are worn out.

    Pump leaking

    Even a high-quality water pump cannot last forever. Therefore, over time, the pump seal (the most vulnerable component of the pump) will begin to wear out and, as a result, leak. And an antifreeze leak in the timing belt area clearly indicates that the pump has lost its tightness and is no longer performing its function to the required extent. Of course, if the leak is small, then the car can be used for now, since the system will still provide engine cooling. However, at any moment the oil seal can completely break through, and all the antifreeze will flow out of the crankcase.

    In some cases, water pump leaks are observed not only due to the wear-out of the oil seal, but also due to improper installation of the rubber seal when replacing the pump.

    Abundant release of antifreeze in the timing belt indicates depressurization of the water pump

    Step-by-step instructions for replacing the pump on a Lada-Priora car yourself

    It should be noted that it is impossible to replace the water pump on a Lada-Priora car without dismantling the engine generator drive.

    Required Tools

    When replacing the water pump on a Lada Priora car, you will need the following tools:

    • open-end wrenches No. o10, No. o15, No. o17;
    • spanners No. o15, No. o17;
    • Allen key No. o5;
    • two screwdrivers of different sizes;
    • a specially designed wrench for installing the tension roller or a puller for retaining rings;
    • Torx T-30 wrench used to remove the five screws that secure the front upper timing cover;
    • mounting blade.

    Photo gallery: a set of tools for replacing the water pump on a Priora

    The procedure consists of performing the following operations:

      The wire is disconnected from the negative terminal of the battery.

    When starting work, the negative terminal of the battery is disconnected

    The adsorber and underwater hoses are dismantled to gain better access to the water pump

    It is necessary to dismantle the engine protective casing

    The part is removed to gain access to the water pump

    Aligning the timing belt to the marks is necessary for proper engine operation after installing all dismantled parts

    Parts are removed using a special tool to gain access to the water pump

    When working, you can use a screwdriver

    Mounting location of the water pump on the engine

    Assembly is carried out in reverse order.

    The new pump must be sufficiently lubricated with a special lubricant. During installation, it is recommended to apply a sealant to the new gasket, which will provide the device with the necessary reliability during operation.

    Installation of the water pump is as follows:

    1. The tightening of the screw that locks the bearing installed in the VN housing is checked.
    2. The screw is tightened if necessary.
    3. The new pump is installed so that the product number is at the top.

    Disassembly and installation of a new part

    Personal experience Lada Kalina station wagon

    First of all, you need to gain access to the timing mechanism, for which, using a No. 10 key, unscrew the 3 bolts securing the protective plastic cover. If you are disassembling a 16-valve Kalina model, you will have to remove 2 covers by unscrewing 5 bolts with a No. 5 hexagon.

    Before further disassembly, you need to align all the marks on the crankshaft flywheel and the camshaft gear.

    Otherwise, during the work you can disrupt gas distribution and create a new problem for yourself.

    To align the marks, it is best to jack up the 1st front wheel, engage 4th gear and turn the crankshaft by turning the wheel manually. Before doing this, do not forget to remove the plug from the gearbox side that covers the marks on the flywheel. The mark on it should coincide with the groove on the body, and the camshaft gear mark should stand vertically at the top opposite the slot. Further disassembly is carried out in this order:

    • using wrench No. 17, loosen the roller and remove the timing belt from the camshaft gear (in a 16-valve engine - from 2 gears);
    • Using the same key, unscrew the bolt holding the gear, wedging it through the holes;
    • remove the gear (both in the 16V model) without losing the key;
    • dismantle the internal protective plate; in the 8V engine it is held on by 2 bolts, on the 16V engine by 5;
    • unscrew the 3 bolts securing the pump and pull it out of the socket;
    • remove the remains of the old gasket from the cylinder block.

    If a cork gasket is supplied with the new pump, then it does not need to be lubricated with anything, but it is better to place a cardboard gasket on the sealant. The new pump must be inserted into the socket in the same position as the old one and secured with bolts. After this, you can put all the parts back, put on and tighten the belt. Double-check that the marks match before replacing the covers.

    To prevent air pockets from forming when filling antifreeze, you need to remove the small pipe from the throttle valve heating unit. Filling is carried out until liquid flows out of it. Upon completion of assembly, it is recommended to check the system by starting the engine and warming it up to operating temperature.

    Checking the serviceability of the water pump without dismantling it

    To determine whether the water pump is working properly on a Lada-Priora without removing it from the car’s engine, it is necessary to take the following steps:

    • start and warm up the power unit to its operating temperature;
    • squeeze the upper hose from the radiator with your hand;
    • By tactile sensations you can understand that coolant circulates through the cooling system, which means the water pump is working properly.

    The presence of extraneous hum or noise in the pump area indicates an imminent possible failure of the device bearing. In this case, it is recommended to replace the auto pump with a new one.

    During normal operation of the pump, coolant circulates intensively through this pipe.

    Signs that indicate the need to replace a part

    Experts believe that the main factors that indicate a faulty water pump are:

    • coolant leaking from the housing in the oil seal area;
    • wear of the built-in bearing, which is determined by increased noise, humming during operation, or jamming;
    • insufficient circulation of the coolant used;
    • excessive increase in the temperature of the power unit;
    • reducing the level of coolant poured into the system;
    • the presence of cracks, chips, chipping of the material of the pulley, housing or impeller of the water pump.

    The water pump, as a rule, is a non-repairable component due to its design. Therefore, experts recommend a complete replacement of this important part.

    The water pump for the Lada Priora is completely replaced if it malfunctions

    Replacing the water pump on Grant (8 valves)

    The driver can change the pump on an 8-valve Lada Granta without going to a service station. The main thing is to follow the replacement instructions and, upon completion of the replacement, set the crankshaft and pulley values ​​correctly. Usually, along with the water pump, it is customary to change the timing belt.

    Where is the pump located?

    Since the pump is put into operation by a gas distribution mechanism, it is quite obvious that it will be built into the timing system. That is, you need to look for the location of the pump on the Lada Granta on the right side of the engine.

    It is impossible to visually see the pump before removing the timing belt - only the pump pulley is visible, which is what starts the impeller into operation.

    The water pump is included in the timing belt assembly

    Preparing tools

    To work, you will need several wrenches, standard auxiliary tools and materials:

    Factory service life of the pump

    The service life of a water pump depends on the supplier of the product or, in other words, on the build quality of the pump, the elements and materials used. A not quite high-quality pump can fail even after 10 thousand kilometers of the car. The service life of a good part can be 100 thousand kilometers without any signs of failure of the part.

    Experts recommend installing an original water pump on the car from the manufacturer TZA (Tolyatti Automotive Unit Plant), which has good quality and a significant period of trouble-free operation.

    Possibility of installing an additional water pump on the Lada Priora

    One of the disadvantages of the heater on the Lada Priora car is its low efficiency when the engine operates at low speeds in the cold season, due to insufficient coolant circulation. Therefore, the car interior warms up slowly and insufficiently, which causes some discomfort for the driver and passengers.

    There are some requirements that must be met to obtain a high-quality result after installing an additional electric pump.

    These include the following points:

    • the installed product should not create excess pressure in the heater radiator during operation in order to avoid damage to the pipes or the formation of cracks;
    • It makes sense to replace the thermostat and install this component with an increased opening temperature (90–95 degrees Celsius) due to the fact that as the speed in the coolant circulation increases, the engine parts will warm up more slowly, increasing wear on the power unit.

    To solve this problem, you can install an additional water pump in the cooling system of the power unit, which will qualitatively improve the heating of the car interior even when the engine is idling. This technology is not new. Engineers have been using it for a long time. Examples include German cars BMW or Mercedes Benz.

    Device selection

    As a rule, devices from various manufacturers are suitable as an additional water pump for the Lada-Priora car.

    These, for example, could be brands from:

    Video: positive effect of installing an additional electric pump on the Lada Priora

    However, most often the Lada Priora is equipped with an electric water pump, which is installed on Gazelle cars. This may be an old or new design, but the principle of operation is the same for both: due to the vacuum at the inlet during operation of the product, a pumping force arises, which drives the coolant through the system. In fact, the pump from the Gazelle car is a classic centrifugal pump.

    The design of the new pump version is much more successful and causes fewer complaints from car enthusiasts. And it is also less noisy during operation. The main problem that motorists encounter when using such an electric pump is its leakage.

    Installation and connection of an additional electric pump

    To equip a car with an additional electric water pump, you will also need a regular relay that has normally open contacts (this can be an ignition or starter relay from a VAZ 2105, VAZ 2108). It is necessary to close contacts No. o86 and No. o30. And you will also need a reinforced hose and clamps for clamping the pipes.

    An additional pump can be installed in any of the gaps in the supply or outlet pipes of the car’s heating stove.

    Installation of an additional electric pump is quite simple, and the efficiency of the heater increases significantly

    The pump is fixed in the Lada Priora in the following places:

    • stud for fastening the washer reservoir;
    • studs located next to the battery;
    • on the engine shield.

    The device can be connected to a wide variety of systems.

    • recirculation button;
    • SAUO stove block;
    • heated mirrors;
    • other convenient places.

    Korean-made coolant pump for VAZ-21179 engine

    The owner of any elderly foreign car with a timing belt will confirm that repairmen insist that during a scheduled belt change, they replace both the pump and the pressure rollers with bearing assemblies. And these parts are often sold as a set. Moreover, at a discount - the whole set is cheaper than the belt, rollers, and pump separately.

    I don’t want to once again convince you that the stingy pays twice, but over the years I have come to the conclusion that Western manufacturers include in the regulations changing the belt not because of the belt as such, but because of the pump and tensioner bearings. They just needed a reason to reliably replace the entire set of parts associated with the camshaft drive, and they found it.

    Installation instructions for an additional electric pump

    Installing an additional water pump on any car (including the Lada Priora has 16 valves) is, in principle, no different. It is necessary to place the electric pump in the section of the pipe, which is the input or output to the car’s stove and provide its power supply.

    Step-by-step instructions for installing this additional component are as follows:

    1. Provide access to the heater pipes under the hood of the car by removing components that interfere with operation.
    2. Compress one of the rubber pipes that comes out of the heater (stove), which is done to prevent coolant from leaking out, or drain antifreeze (antifreeze) from the entire system.
    3. Cut part of this pipe to the length of the corresponding pump being installed.
    4. The length of the fittings is not taken into account due to the fact that they fit into the pipes.
    5. It is necessary to select the diameter of the fittings on the electric pump in advance to obtain a high-quality connection.
    6. Secure the rubber pipes to the pump fittings using metal clamps.
    7. Attach the additional electric pump to a pre-selected location under the hood of the car (indicated above) using special fasteners.

    An additional electric pump can be mounted in any place convenient for installation.

    Video: step-by-step instructions for installing an additional electric water pump on a car

    It is recommended to install such a pump only after a thorough check of the functionality of the entire cooling system of the car, since there are often faults in the stove, thermostat, and other components, which ultimately does not allow sufficient heating of the interior.

    The water pump of the Lada Priora car is designed to maintain the internal thermal conditions of the car's power unit set by the manufacturer. Operating a motor with a faulty pump is guaranteed to lead to more serious breakdowns and, as a result, to significant financial costs. Timely replacement of a failed water pump will ensure a long service life for the engine, as well as comfort when using the car.

    How to change the license plate light bulb on Kalina

    What tools will you need:

    • flat screwdriver,
    • a piece of rag
    • new lamps.

    The left side of the lampshade is made in such a way that you can place a thin object (in our case, a screwdriver) under it and pry it, releasing the first latch. This requires a little effort. If you are afraid of scratching the plastic, place a prepared rag under the tip of the screwdriver.

    Once the left side of the latch has come out, move the lamp itself a little to the left and remove the right side. Pull the lantern out. Now you can either disconnect the wire, or simply turn the lamp a little and remove it from the housing.

    The light bulbs in the license plate illumination are the most common ones - W5W. The same ones are in the front side lights. We take out the old incandescent lamps and insert new ones - LED ones. It’s better to immediately check whether you placed them on the wrong side; LED lamps have polarity! Well, now, with a clear conscience, everything can be put back together. The license plate light bulbs on Kalina have been replaced.

    What advantages will we get after replacing the standard license plate light bulbs with LED ones?

    1. Firstly, they shine much brighter. This is noticeable even to the naked eye. And at the same time they consume much less energy, which leads to at least insignificant savings.
    2. Second, they don't get so hot. Having removed the old lamps, you may have noticed some melted plastic near their seats. It is not good. This definitely shouldn’t happen with diode lamps.
    3. And last but not least, it looks beautiful. Agree, the bright, white backlight of the license plate looks much better than the standard one.
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