Car owners of the front-wheel drive 2110-12 family must monitor the condition of the pump that circulates the coolant. More often it is called a pump. This unit is in the category of critical engine systems. A failed pump can negatively affect the performance of the motor and lead to serious consequences. Despite the complexity and importance of this unit, replacing a VAZ 2110 8 valve pump is not a difficult task. If you have a garage and plumbing tools, most car owners will be able to make repairs themselves.
The entire operation to replace the water pump on a VAZ 2110 car will take no more than 2 hours. Along with the main task, the timing drive will be subject to revision, which is very important for the further operation of the car.
Replacing the pump on an 8-valve VAZ-2110, 2111, 2112
The pump (coolant pump) is one of the main elements of the cooling system of an internal combustion engine.
It serves to pump coolant into the system, thereby ensuring its circulation and cooling of the entire engine. The pump structure consists of a housing, an impeller, a bearing and a drive gear. In VAZ 2110 cars (8 valves), the pump is located on the right side of the engine cylinder block (in the direction of travel) under the timing belt cover.
It is driven directly by the timing belt, which, while moving, rotates the drive gear.
Design Features
Despite its simple design, the pump of any car, including the VAZ 2110, is a fairly loaded element, all due to the same drive, so it can easily fail. The culprit is usually the pump bearing. Replacing a VAZ 2110 pump is not the easiest process, but you can do it yourself, all you need is the necessary tools and our instructions.
Essentially, the pump consists of:
- shaft;
- housings;
- bearing;
- oil seals;
- gear and impeller.
Everything is simple - a gear is mounted on the shaft on one side, and an impeller on the other. Between them on the shaft there are a bearing and seals, which are located inside the housing.
This housing attaches the pump to the cylinder block. In this case, the impeller is located inside the cooling jacket, and the gear is outside it. The timing drive causes the gear to rotate, and along with it the impeller, since they are mounted on the same shaft.
In this case, the gear does not contact the drive with its entire working surface, but only half.
And since the timing belt must be constantly tensioned, the pump bearing constantly experiences a one-sided load, which ultimately leads to its failure.
This, in general, is the main reason for the breakdown of the water pump in the VAZ-2110 and not only.
Basic faults
Signs of a faulty pump are:
- hum or rustling in the timing drive area;
- leakage of coolant from the pump seat;
- mechanical damage to the timing belt (eaten teeth, delamination, cracking).
The main malfunction of the coolant pump is the failure of its bearing, which can be caused by its wear or incorrect adjustment of the timing belt tension. If this problem is detected, the pump must be replaced.
It is recommended to change the pump along with the timing belt and tension pulley every 50 thousand km, as well as when signs indicating its failure are identified. If the coolant pump is not replaced in a timely manner, this can lead to:
- damage and breakage of the timing belt, as a result of which it will be necessary to repair or change the cylinder head along with the gas distribution mechanism, as well as parts of the piston group;
- overheating of the engine, which can lead to damage to the rubber communications of the cooling system, cylinder head gasket and valve cover, and piston group parts.
The price of a pump for an eight-valve VAZ 2110 engine is 700-1000 rubles. The cost of repair work at a service station is about 1000 rubles. But you don’t have to overpay for the work. You can replace the pump yourself.
When purchasing a pump, be sure to pay attention to:
- manufacturer of the spare part (under no circumstances buy parts from unfamiliar brands);
- catalog number of the spare part (the standard pump for the eight-valve engine has the number 21081307010);
- presence of original packaging;
- gasket included;
- Availability of a warranty card for the product.
How to install an additional water pump?
To install an additional pump for the cooling system, you will have to prepare:
- high-quality pump;
- long and short hoses;
- sealants;
- fastening elements.
To the pump fittings you need to attach hoses fixed with clamps, the long one for supplying antifreeze to the pump, and the short one for draining the coolant.
To install the unit, you should proceed sequentially:
- find two hoses;
- disconnect the outlet pipe;
- connect the manufactured unit with pump No. 2;
- secure the resulting assembly with metal clamps;
- fix the pump with the gearbox housing;
- add antifreeze;
- start the engine;
- check the structure for fluid leaks.
The additional pump starts at the pressure pumped by pump No. 1, since the second unit will serve as long as possible. Fixing the pump will take a lot of time due to the fact that the timing belt and rollers will need to be replaced.
If a person doubts his own qualifications, then it is better to pay 1000 Russian rubles to specialists from a service station.
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Self-replacement of the pump on a VAZ 2110 (8 valves)
- Place the car on a viewing hole or overpass.
- Open the hood, turn off the power by removing the wire from the negative terminal of the battery.
- Open the expansion tank cap.
- Go down into the pit, place a wide-necked container (at least 5 liters) under the cylinder block.
- Unscrew the coolant drain plug (key 13) and drain it. Screw the drain plug back.
- Unscrew the 3 bolts securing the timing case (10mm wrench).
- Remove the cover.
- Set the crankshaft to the top dead center position of the first cylinder. To do this, turn off the gear and turn the bolt securing the generator pulley with a 19mm wrench until the mark on the camshaft gear matches the mark on the rear timing case.
- Check the alignment of the marks on the flywheel and clutch housing. To do this, remove the rubber plug on the crankcase to the right of the cylinder block.
- Secure the crankshaft in this position by inserting a large slotted screwdriver into the flywheel teeth.
- Loosen the nut securing the tension roller (17 wrench) and turn it counterclockwise with a special wrench, loosening the tension of the timing belt.
- Remove the belt and tension roller.
- Unscrew the 5 bolts securing the lower timing case, incl. and 3 bolts securing the pump (head or end cap 10). Remove the cover.
- Using a screwdriver, pry the pump housing and pull it out. Clean the surface of the seat from fragments of the old gasket.
- Lubricate the gasket on both sides with automotive sealant and place it on the new pump housing.
- Install the new pump into place.
- Carry out assembly work in reverse order. It will be better if you replace both the belt and the tension roller along with the pump. This way you will know exactly the resource of all these parts.
- When installing the timing belt, check its tension by turning one of its fields horizontally. The correct tension is one at which the belt can be rotated by finger force no more than 90 degrees.
Replacing the oil seal
The oil seal is a rubber seal consisting of a metal rim, a spring and rubber. In any case, when disassembling the pump, the oil seal should be replaced, since the rubber wears out quickly. The procedure for replacing the oil seal is as follows:
- The old seal is removed from the shaft.
- The seat is cleaned of dirt.
- A new seal is installed.
Pump leaks are usually caused by worn out seals.
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Replacing a VAZ 2110, 2111, 2112 pump with 8 valves
The water pump is an important component in the cooling system of the unit; if it fails, the motor can “boil”, which can lead to serious repairs. Therefore, timely replacement of the VAZ 2110, 2111 or 2112 pump with 8 valves is extremely important. It is not difficult to check its performance. To do this, you don’t have to contact a car service. Testing is performed within 5-7 minutes. The engine warms up to operating condition - a little more than +90 degrees C. Then, with a gloved hand, squeeze the radiator pipe; if it deforms easily, without force, the water pump has malfunctioned. Before studying the question of how to repair a unit, you need to familiarize yourself with the diagram of the device.
Signs indicating a breakdown
The presence of a breakdown can be determined by several characteristic signs, namely:
- A rustling sound occurs in the drive area.
- The appearance of traces of coolant leakage from under the seat.
- There are delaminations or cracks on the belt.
- The engine has overheated.
- There was a strong drop in the liquid level.
- Poor fluid movement through the system has occurred.
As practice shows, most often the pump breaks due to bearing failure due to wear or incorrect installation of the tension belt. If such problems are detected, it is necessary to completely replace the pump.
Tools you will need for your work
To replace the VAZ 2110, 2111 and 2112 pumps and repair parts yourself, you will need a small set of tools that can be found in any garage:
- knob;
- wrench 17, open-end;
- a set of car keys;
- extension element;
- head.
Do-it-yourself repairs are quite advisable, since the price of work in a car service center as of January 17, 2022 is on average 1 thousand rubles. This amount is better spent on purchasing the pump itself.
Which pump to choose
There is no need to save money on purchasing the main coolant unit. Today the market is saturated with various types of pumps, with any pricing policy
For VAZ 2110 car owners who decide to replace the pump with their own hands for the first time, auto repair shop experts recommend paying attention to branded manufacturers such as: KolbenShmidt, SKF, GRAF, HEPU, Valeo, Quinton Hazell. It is not recommended to install: FEBI, Dolz, RUVILLE, Airtex, Pex
On a VAZ 2110, in addition to replacing the pump, it is advisable to update the timing belt and tension roller. It is better to purchase them as a set from manufacturers: Contitech, Gates, Lemforder, SKF.
Order of Operations
A complete replacement of the coolant is not required for this type of repair if its service life has not expired. It is better to install the machine on an overpass or inspection hole. Further work is performed in the following sequence:
- Disconnect the battery by removing the negative terminal.
- First, the cover of the expansion barrel is opened, and a container with a volume of at least 5 liters is placed under the cylinders. The coolant is drained into it; after draining, the cover must be replaced.
- Then you need to remove the casing; to do this, unscrew the mounting bolts.
- Now you need to fix the crankshaft at the dead top point of the 1st cylinder. To do this, the gear is engaged and the pulley mounting bolt is turned. The correct position is determined in this way: the mark on the timing case coincides with the mark on the shaft gear.
- To statically fix the crankshaft, you need to insert a screwdriver between its teeth.
- Now you need to loosen the tension on the timing belt; to do this, slightly unscrew the nut holding the roller. This is done with a special key, the direction of movement is counterclockwise.
- After this operation, the roller and belt can be removed.
- Now you can completely remove the casing. To do this, unscrew the five mounting bolts.
- The water pump is now available. You need to pry it off with a screwdriver and remove it. The seat should be cleaned.
- Now the VAZ 2110 8-valve injector pump is being directly replaced. But first you need to take a new gasket, coat it on both sides with autosealant, and install it on the pump.
- The pump is installed in place.
- Subsequent work is performed in the reverse order to that described above. It is advisable, along with replacing the VAZ 2110 8 pump, to change the roller and timing belt. This way you can accurately calculate the service life of these elements.
- After installing the belt in place, you need to check its tension. To do this, take one of its fields with your fingers and unfold it in a horizontal plane. If you cannot turn the belt more than 90 degrees, the tension is normal.
- After completing the work, add old or new coolant to the required level.
Possible consequences
If you ignore the condition of a pump that has completely failed and do not take any action to repair it, the consequences can be disastrous.
Experts note the following initial events:
- damage and further breakage of the timing belt occurs, which will require its repair and subsequent replacement;
- The engine overheats due to wear of the rubber connecting elements of the engine cooling system.
It is recommended to replace the pump with belt and rollers every 50 thousand kilometers or when the first signs of an existing malfunction appear. The average price of a new pump is approximately 1,000 rubles, and the cost of replacing it is plus 1,000 rubles. Many car enthusiasts, in order to save money, replace this element with their own hands.
Why do you need a pump in a car?
If we talk about the operation of a car engine, then we immediately touch upon the topic of its cooling. Indeed, without high-quality cooling, the engine will not be able to work for a long time and will definitely “boil”. Thanks to the circulation of coolant, it becomes possible to operate the engine at any time of the year under any external conditions.
The power component on the VAZ of the tenth family has a rather complex structure. During the working cycle, the pistons rub strongly against each other, which invariably leads to strong heating of the surfaces. The only way to prevent engine overheating is to constantly maintain the desired temperature in the friction zone through the circulation of coolant and. It is for this purpose that the VAZ design includes a cooling system.
The design and operating features of the VAZ 2110 engine cooling system are described in detail in this material: https://vazweb.ru/desyatka/dvigatel/sistema-ohlazhdeniya-dvigatelya.html
Coolant (antifreeze or antifreeze) is poured by the driver into the expansion tank of the car. From it, the liquid is transferred through pipes to the water pump, and from there it goes to the radiator and cylinder block. The water pump (or pump) is designed to pump antifreeze through the system while the engine is running. That is, the pump starts together with the engine and turns off after the driver turns off the car. Without a pump, the entire cooling system can be considered ineffective, since only the pump can create rapid circulation of liquid throughout all parts of the system.
The pump is designed to create the necessary pressure in the cooling system to move the liquid.
The device in a metal case ensures continuous circulation of antifreeze through the cooling system
Installation of an additional pump
To install an additional pump, you need to do the following:
- Coolant is drained from the cooling system.
- A part of the outlet pipe of the stove is cut out, equal to the length of the pump without taking into account the fittings.
- The fittings are coated with sealant, the hoses are put on and secured with clamps.
- To attach the pump to the body, use a special bracket that wraps around the pump and is attached to the body with two self-tapping screws. You can make such fasteners yourself or purchase them in a store. The bracket can also be attached to suitable studs on vehicle components.
- To control the pump, a button is installed in the cabin that supplies power from the positive terminal of the battery. In this case, it is advisable to supply voltage through a relay.
The additional pump cuts into the return pipe of the stove and is secured using a special bracket. After installing the additional pump, antifreeze is poured into the system. After starting the engine, check the pump and pipes for leaks and test the operation of the new device.
How to check the pump on a VAZ 2110/2112
The driver, if there is a suspicion of a malfunction of the water pump, can check this unit without going to a car repair shop. In this case, there is no need to remove the pump from the car; the entire verification procedure is completed within 10 minutes:
Warm up the engine to normal operating temperature (on a VAZ of the tenth family - 91 degrees).
Put a glove on your right hand.
Pinch the fluid supply pipe that comes from the radiator with your hand. If the pump is working normally, you will immediately be able to feel the pressure of the antifreeze inside the pipe. If, when pressed, the hose easily compresses, then the circulation of coolant is severely inhibited, which indicates a breakdown of the pump.
To identify pump malfunctions, it is enough to squeeze the antifreeze supply pipe - if the hose resists compression, then the pressure in the system is stable
When performing the check, you must be careful, since the antifreeze gets very hot during engine operation: you can get burned on the hot pipes and surfaces of the engine.
Signs of a faulty water pump
On a VAZ of the tenth family, diagnosing problems with the water pump is quite simple: you need to constantly monitor the “behavior” of your car . There are only three signs of a pump malfunction:
Unusual noise or grinding noise in the timing belt assembly while driving.
Pump leaking due to loss of tightness.
Severe damage to the timing belt (asymmetrical wear, delamination or cracking).
Traces of coolant can be seen both in the timing belt assembly itself and on the asphalt after the car has been parked for a long time.
The main malfunction of the pump on the VAZ 2110/2112 is considered to be bearing wear - if the bearing is badly worn or the timing belt is not tensioned correctly, then it will not be possible to repair the pump.
Video on how to buy a good pump
Home→Catalogue→Engine→Cooling system→Water pump (pump)→VAZ-2110-12 16kl→Water pump (pump) VAZ-2110-12 (16kl.) “Original” series (company packaging LADA) Water pump (pump) VAZ-2110-12 (16 cells) series “Original” (company packaging LADA)Characteristics
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Water pump (pump) VAZ-2110-12 (16 cells) series “Original” (company packaging LADA) Out of stock RUB 1,320 + 39.6 to bonus account Water pump (pump) VAZ-2110-12 doors. 21124 (1.6L 16 cells) assembled (with gasket) (TZA)Water pump (pump) VAZ-2110-12 dv.21124 (1.6L 16 cells) assembled (with gasket) (TZA)Characteristics
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Water pump (pump) VAZ-2110-12 dv.21124 (1.6l 16 kl) assembled (with connector) (TZA) In stock ( 7 ) RUB 1,835 + 55.05 to the bonus accountWater pump (pump) VAZ- 2110-12 (16 cells) series “Standard” (company packaging LADA) Water pump (pump) VAZ-2110-12 (16 cells) series “Standard” (company packaging LADA) Characteristics
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The pump, or technically speaking, the water pump, is an integral part of the car’s cooling system. This is the second part after the thermostat that most often fails. On a 16-valve VAZ-2112, replacing this element is quite simple, and almost every motorist can handle it. The water pump itself is responsible for circulating coolant through the system. If the water pump malfunctions, coolant may leak and air may enter the system. And in the worst case scenario, the pump gets jammed and the valves bend. This does not threaten the 124th engine, but the 21120 will require a major overhaul.
Video about replacing the timing belt and pump on a 16-valve VAZ-2112:
The video material shows the process of replacing the pump, and also contains some recommendations and nuances. Before performing operations, it is recommended to watch the presented video.
Replacing the pump on a VAZ 2110/2112
One day, the owner of a VAZ of the tenth family will be faced with the need to replace the water pump. Fortunately, the design of the pump itself is quite simple, so the pump rarely fails.
It is recommended to change the pump on the VAZ 2110/2112 every 50 thousand kilometers or at the first sign of a malfunction.
If you do not replace the water pump on time, the consequences for the car can be very unpleasant:
broken timing belt (a faulty pump wears the belt unevenly);
expensive repair of the cylinder head (if the drive belt is damaged, the valve mechanisms may bend);
conclusions
Replacing a water pump is a fairly simple process that any motorist can do. Particular attention must be paid to choosing a product and checking its authenticity. There have been numerous cases when the installed pump on a VAZ 2112 had a service life of 1-2 thousand km, and then failed, which not only upset the owner, but also led to a repeat purchase.
Sources used:
- https://mylada.net/remont/zamena-pompy-na-8-klapannoj-vaz-2110-2.html
- https://vaz-2110.ru/dvigatel/zamena-pompy-vaz-2110-8-klapanov.html
- https://carfrance.ru/zamena-pompi-vaz-2110-artikuly/
- https://original-detal.ru/catalog/dvigatel/sistema_okhlazhdeniya/nasos_vodyanoy_pompa/vaz_2110_12_16kl_2/
- https://carfrance.ru/zamena-pompy-na-vaz-2112-svoimi-rukami-na-16-klapannom-dvigatele-vybor-ceny-process-video/
DIY pump repair VAZ 2110/2112
The driver does not always have the opportunity to replace a faulty pump. In some cases, it is possible to repair the device by restoring the operating functions of the pump. If the pump has not yet exhausted its service life (50 thousand kilometers), then you can repair it. However, the pump cannot be repaired without using a special repair kit. This is a set of rubber gaskets and parts that most often fail and need to be replaced.
Repair kits for pumps may vary in composition, depending on which spare parts need to be replaced
In addition, you will have to thoroughly prepare for repairs: the place for disassembling and repairing the pump must be clean and level.
How to disassemble a water pump
Once the pump is removed from the machine, it will need to be disassembled. Only after disassembly and thorough cleaning will it be possible to replace the leaked parts of the pump.
To disassemble the pump, it is recommended to follow the following diagram:
Wipe the product with a dry cloth.
Use a hammer to knock out the bearings from the shaft.
Pull the shaft itself out of the housing.
If something remains from the oil seal, then remove the remaining rubber from the housing.
The procedure for disassembling the water pump is intuitive: until you remove the pulley, it is impossible to get to the shaft and impeller
After this, the cavity of the pump itself must be thoroughly cleaned of dirt and old deposits - you can wash the pump with the same gasoline that is usually filled into the VAZ 2110/2112 tank.
A visual inspection of the pump parts will show which element needs to be replaced. Typically, a pump leak is caused by rotting of the oil seal, and a whistle when the engine is running or a grinding noise at high speeds is caused by wear of the shaft.
Video: disassembling the pump
Replacing the oil seal
An oil seal is a gasket made of rubber and metal inserts. During normal pump repairs, changing the oil seal is included in the list of mandatory procedures, since the gasket is a rubber product in its structure, and therefore wears out quickly.
Replacing the oil seal is not difficult:
The old gasket is removed from the shaft.
The landing site is cleared of dirt.
A new oil seal is installed.
The rubber-metal product that ensures the tightness of the pump is called an oil seal.
Before installing the rubber seal, you can lubricate it with antifreeze so that the oil seal quickly “grinds” to the shaft.
Changing the shaft with bearings
Most often, it is the bearings that have become loose that need to be replaced. But knocking them out of the shaft is a very tedious task. In addition, a hydraulic vice is required, which not every driver has. Therefore, it is easier to replace the bearings along with the shaft.
Again, the procedure for replacing the shaft is not associated with difficulties: a new one is driven in in place of the old shaft.
It is not possible to knock out the old bearings from the pump, so it is easier to replace the shaft along with them
How to replace a pipe on a pump
Sometimes, due to unstable pressure in the cooling system, the antifreeze supply or discharge hoses may become deformed. New pipes cost pennies, and new metal mounting clamps are not difficult to buy.
If the pipe is swollen, this is a clear sign that the rubber will soon burst. Cracks and dents in the tube also indicate the need for prompt replacement.
To make a replacement, you must:
Use a screwdriver to loosen the clamp.
Disconnect the pipe from the pump.
Loosen the clamp on the back of the pipe and remove the fastener.
Remove the pipe from under the hood.
The clamp, when compressing the pipe, can severely damage the rubber, which can cause antifreeze leaks
Rules for disassembling the pump to circulate liquid
When the pump is removed from the car, it should be disassembled, cleaned, and problematic parts replaced:
- rub the product with a rag;
- unscrew the pump pulley;
- pull out the stop ring;
- remove the bearings from the crankshaft;
- remove the impeller;
- flush the pump with gasoline.
Most often, you will have to replace the oil seal, for which the worn gasket is removed from the shaft, deposits are removed from the seating area, and the oil seal is removed. Before the rubber seal is installed, you need to apply a cooling liquid so that it gets used.
Failed bearings can be replaced individually, or you can simply replace the entire shaft. You will need to easily drive a new one in place of the old shaft.
Why is a second pump needed in a car's design?
On some modern car models, a second pump is already installed from the factory. This equipment allows for the most reliable engine cooling under any load.
An additional pump on the car is required to create better cooling. If we talk about the owners of the tenth family of VAZs, then most often a second pump is installed to optimize the operation of the stove in winter.
In this case, the pump body is screwed to the motor body with a special bracket
Rating of the TOP 7 best pumps for VAZ
To understand which pump on the VAZ model is better, it is recommended to make a rating. The following is a table that lists the instances from last to first.
№ | Name | Performance | Supply voltage | Current consumption | Nozzle diameter | Length |
7 | TZA 2107130701075 | 160-170 l/min | 12V | 0.3V | 32 mm | 210 mm |
6 | Dolz L120 | 160 l/min | 12V | 0.3V | 32 mm | 210 mm |
5 | HOFER HF033024 | 170 l/min | 12V | 0.3V | 32 mm | 210 mm |
4 | Metelli 24-0833 | 170 l/min | 12V | 0.3V | 32 mm | 210 mm |
3 | FENOX HB1001L1.1 | 160 l/min | 12V | 0.3V | 32 mm | 210 mm |
2 | LUZAR 21124-1307010 | 170 l/min | 12V | 0.3V | 32 mm | 210 mm |
1 | Bosch 0392020024 | 180 l/min | 12V | 0.3V | 32 mm | 210 mm |
TZA 2107130701075
The TZA pump, applicable to the VAZ-2107 and other classic models, is one of the available options on the market.
The impeller of the pump is made of plastic and has 7 blades.
Cost - from 900 rubles.
The reviews note a small resource, play appears quickly. It is not recommended to install this pump on cars with a 16-valve engine. If a part jams, there is a high probability of serious repairs.
Source
Installing a new pump
Assembly is an equally responsible matter; a certain sequence must be followed in the process:
- first you need to install the new water pump in its place;
- Next, a plastic casing is installed;
- the camshaft pulleys are fixed in place;
- the timing belt is put on;
- The VAZ 2110 belt is put on according to the previously applied marks on the camshaft;
- The wheel rotates the engine, adjusting the correct tension and position of the belt.
Note! After installation, you need to add antifreeze or other coolant.
After these steps, you can check the operation. Usually, the process of replacing a pump with your own hands takes about three hours. If everything was done as required by the instructions, there should be no problems. Thus, you can save a lot of money, because the price for services of this type in car services is quite high.
The pump on the VAZ 2110 is a pump that distils coolant. This is an important element of the engine cooling system. The device is necessary for pumping coolant, which ensures coolant circulation through the circuits.
The structural elements of the pump are:
- Bearing;
- Impeller;
- Frame;
- Drive gears.
On a VAZ 2110, the pump is located to the right of the cylinder block in the direction of travel under the timing belt cover. The pump operates by rotating the timing belt, which drives the drive gear.
Carrying out replacement work
Despite the fact that the VAZ-2110 works with both 8-valve and 16-valve units, the algorithm for replacing them is identical.
At the beginning of installation, it is necessary to carry out work to dismantle the worn or broken pump in the following sequence:
- Place the vehicle over a pit or a special overpass.
- After opening the hood, you need to remove the negative terminal from the battery. This action will disconnect the vehicle from power.
- Further work will take place directly under the car.
- Having previously placed a container under the block, open the plug to drain the coolant. Drain the liquid only when the engine is pre-cooled.
- After the coolant has completely escaped, return the plug to its original position.
- Remove the timing case by unscrewing the mounting bolts.
- Install the crankshaft at the top meter point of the first cylinder. To do this, you need to turn off the gear and turn the bolt holding the pulley with the nineteenth key. Rotational movements are made until the marks on the gear coincide with the drive marks located on the rear casing.
- Make sure that these marks match.
- Remove the tension roller and timing belt.
- Next, you need to unscrew the mounting bolts holding the lower casing.
- Remove the casing itself.
- Remove the pump by unscrewing the 3 hex bolts.
- Carefully remove the remaining fragments of the old gasket.
Causes and symptoms of malfunction
In order to understand whether the device is broken or not, you need to understand at least a little about the operation of the vehicle, as indicated by certain spontaneous manifestations.
Signs that the water pump is broken:
- extraneous sounds - pump clatter or bearing noise;
- increased coolant temperature;
- pump leaks, which can be not only a breakdown of the device itself, but also gasket breakdown or bearing wear.
- wear of the pump shaft or bearing - unstable circulation of coolant and leaks;
- the gasket is broken due to wear;
- failure of the shaft - rotation of the shaft itself, which will be expressed by unstable circulation of fluid in the system and, as a result, large overheating;
- pulley wear is immediately determined by belt wear.
By correctly identifying the faulty part based on the above signs, you will be able to fix the problem in a timely manner with minimal negative consequences for the remaining elements of the car.
Instructions
A detailed and sequential process for replacing the pump will be considered for a VAZ-2112 with a 16-valve 1.6 engine:
- Using a special pit in the garage or a lift it is easier to replace the water pump. But not everyone has them, so we will consider the replacement process in a simple garage without a pit.
- Remove the front wheel on the right.
- To give yourself access to the crankshaft pulley, remove the protective plastic splash guard by unscrewing the screws securing the element to the body and removing it.
- Secure the crankshaft from turning. This is in your own interests of safety and convenience, and is also necessary in order not to disrupt the valve timing.
- Loosen the alternator and timing belt using the tension roller, which just needs to be loosened slightly.
- Unscrew the crankshaft mount.
- After loosening the fastening, remove the pulley.
- Next, it is necessary to disassemble the gas distribution mechanism, during which all elements are dismantled - casing, pulleys and rollers.
- Only now we get to the pump. Unscrew its mounting bolts - 3 pieces. Dismantle the device.
- Pull out the pump completely.
- Installation is similar, but done in reverse order.
Maintain consistency so as not to violate the integrity of the “chain” of the system in the end.
A replaced pump will allow you to forget about problems with it for the next 40-50 thousand km.
Source
Cost and prices of work
Luzar pump.
The price of a water pump for an 8-valve VAZ-2110 engine ranges from 700 to 1000 rubles.
For repair work to install it at the service, you will have to pay at least 1000 rubles . However, there is no need to overpay for the installation of the pump, since you can install it yourself.