Replacing the pump VAZ 2110, 2111, 2112 8 valves with your own hands

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.

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.

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.

Pump location

On the VAZ 2110/11/12 the water pump is located on the cylinder block on the right side. This is due to the design features of the gas distribution mechanism, since the impeller begins to rotate only after the engine and timing belt are started. That is, the design of the gas distribution mechanism initially involves the use of a pump.

The water pump is part of the timing mechanism and is installed on the right side of the cylinder block

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

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.

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.

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Resource

The pump does not seem to be a consumable, but still it is also subject to periodic replacement. But unlike consumables, it does not have a specific resource.

One pump can run 100 thousand km, but the other won’t reach 20 thousand km. It all depends on the quality of manufacture of the part itself, as well as on the correctness and frequency of maintenance, namely, checking and adjusting the tension of the timing belt.

An overtightened belt can shorten the life of the pump, significantly.

What will result from untimely replacement of the VAZ 2110 pump?

But if you do not replace the VAZ-2110 pump (8-valve injector) in a timely manner, you can get the following consequences:

1. Broken or damaged timing belt. More serious repairs will have to be carried out, since very often the integrity of the valves or even the cylinder head is compromised. Sometimes even the pistons become unusable.
2. The engine heats up excessively, the integrity of the rubber elements - pipes, gaskets - is damaged, the cylinder head gasket, valve cover, and piston group components are destroyed.

The price for replacing a VAZ 2110 pump in workshops is about 1500-2000 rubles. The more complex the repair, the more expensive it is. If the timing roller and belt need to be replaced, the cost increases.

It is worth noting that you can replace the pump on the “ten” yourself, this will not cause any difficulties.

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.

Signs of a pump malfunction

Thanks to the rotation of the pump driven by the timing belt, the impeller circulates a special fluid (antifreeze, antifreeze) through the small and large circuits of the cooling system. A damaged pump can cause the engine to overheat or cause the timing belt to break. To avoid an emergency on the road, you should do preventive repairs on time. On a VAZ 2110 with an 8-valve engine, the omen of replacing the pump can be recognized by the symptoms described below.

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:

1. Warm up the engine to normal operating temperature (on a VAZ of the tenth family - 91 degrees).
2. Put a glove on your right hand.
3. 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

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.

Symptoms of malfunction and quick replacement of the VAZ 2110 pump

There are several signs of a pump breakdown, and they can be obvious, or the fault can only be determined after diagnosis.

Signals that the water pump has become unusable are:

• Increased noise when the engine is running from the timing belt side, a squeak is possible;
• A constant and significant decrease in the coolant level in the expansion tank and traces of coolant leaks from the crankshaft drive pulley;
• Strong pump play.

As can be seen from the list, all these signs are caused by severe wear of the bearing and seals.

Some argue that a pump malfunction leads to an increase in temperature during operation of the power plant.

But this happens in very rare cases when, due to corrosion, the impeller blades are almost completely destroyed. Because of this, the pump simply physically cannot impart movement to the liquid.

But such a malfunction is an isolated case; in general, the pump cannot affect the temperature regime due to the fact that it is constantly in motion.

But ignoring the problem with the pump’s operation will also not lead to anything good.

In the best case, the bearing and seals will wear out so much that they will not prevent the coolant from flowing out at all.

And since there is a drainage hole in the pump body, the antifreeze will drain through it quickly, and this can actually lead to overheating of the engine.

It is much worse if the bearing collapses due to severe wear and leads to jamming of the pump and flooding. Replacing the VAZ 2110 pump

The result of this is a belt rupture and possible collision of the valves with the pistons. And this is already a major expensive repair of the power plant.

Recommended.

Check the pump every time the drive belt is replaced. Well, if any of the signs of malfunction appear, you should immediately check the condition of the pump and, if necessary, replace it.

Let us note here that increased hum and squeaking can be caused not only by the pump, but also by the tension roller, so the pump is not necessarily the cause of the noise.

But if a faulty element is identified, it is worth checking both of these details. Fortunately, they are located nearby, so it is not difficult to determine whether the pump or the roller caused the increased noise.

Checking the functionality of the water pump

Self-diagnosis of the pump is quite simple and will take no more than 10 minutes. The verification procedure is as follows:

1. The engine warms up to operating temperature (91˚C for VAZ 2110).
2. For safety reasons, a thick glove is worn on the right hand.
3. The coolant supply from the radiator is cut off. To do this, squeeze the pipe by hand. If the pump is working properly, you will feel the antifreeze pressure inside the hose. If the pipe compresses easily, then the pump is faulty.

All actions should be carried out with extreme caution, since the coolant gets very hot, and you can get burns from the surface of the motor or pipes. To identify problems with the pump, it is enough to pinch the coolant supply pipe

To identify problems with the pump, it is enough to pinch the coolant supply pipe

Diagnosis of pump faults on VAZ 2110/11/12

A pump malfunction can be identified by the following signs:

1. While driving, extraneous noise appears from the timing belt.
2. The pump loses its seal and begins to leak.
3. The timing belt breaks.

The most capricious element of the VAZ 2110/11/12 pump is the bearing. If it is severely worn or if the timing belt tension is incorrect, the pump cannot be repaired.

One of the symptoms of a pump malfunction is the appearance of a leak.

Consequences of using a faulty pump

Operating a car with a faulty pump can lead to the following serious consequences:

• damage or breakage of the timing belt, often leading to a major engine overhaul;
• When the engine overheats, the rubber elements of the cooling system, valve covers and cylinder head gaskets are destroyed.

The pump is changed along with the tension roller and timing belt every 50 thousand kilometers. If signs of wear appear, these components are replaced before the time specified by the manufacturer.

Choosing a pump for your car

So, you have decided to replace the pump. Now you need to go to the auto store and buy the required element. However, sellers offer a huge assortment of different water pumps for the VAZ 2110/2112 - which pump to choose so as not to go wrong with the price and quality?

The price of a pump for an 8-valve VAZ 2110/2112 engine is from 800 rubles, for a 16-valve engine - from 1 thousand rubles. However, regardless of the cost and brightness of the packaging, when purchasing, you must pay attention to the following details:

• manufacturer (take products only from companies that you know well);
• the pump has its own catalog number (for example, the standard VAZ pump in all catalogs in car stores and on Internet sites is numbered 21081307010);
• the pump is sold in clean, uncreased packaging;
• The kit includes a gasket;
• A factory quality guarantee is provided with the pump.

Car enthusiasts prefer a pump produced by TZA. A water pump from a domestic manufacturer is easy to install, lasts a long time and is inexpensive. However, there is a risk of purchasing a defective product.

The Russian-made product is characterized by affordable cost and high quality work

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.

Step by step operating procedure. Replacing the VAZ 2110 pump

The water pump is replaced in an inspection pit or overpass. A regular jack will do, but you should make sure in advance that the body is lifted from the front right side and securely secured with additional stops.

The procedure for replacing the pump is identical for VAZ 2110/2112 with engines with 8 and 16 valves.

Replacing the pump involves removing the timing belt and tension pulley

After the initial preparation, you can begin the main work:

1. Open the hood and remove the wire from the negative terminal on the battery.
2. Unscrew the cap from the expansion tank.
3. Get down under the car and place a container under the cylinder block.
4. Unscrew the antifreeze drain plug and pour it into a container.
5. After draining, install the plug back.
6. Next, remove the front right wheel from the VAZ.
7. The timing block will open under it - use a 10mm wrench to unscrew the three casing bolts.
8. Remove the casing from the machine.
9. After this, fix the crankshaft at the highest point of the first cylinder: engage the gear and turn the bolt that secures the pulley with a 19mm wrench. You need to turn it until the mark on the shaft gear matches the mark on the rear casing of the gas distribution mechanism.
10. It is better to insert a large screwdriver or a long bolt between the crankshaft teeth to ensure it is static.
11. Next, use a 17 key to loosen the tensioner roller, which will entail loosening the timing belt.
12. First remove the belt, then the roller itself.
13. Remove the five bolts that secure the bottom of the pump to the timing belt.
14. Then unscrew the three bolts securing the top of the pump.
15. It is easy to pry the pump housing with a screwdriver and pull it out of the socket.
16. It is recommended to immediately clean the planting site from dust and old antifreeze. The remains of the old gasket must be removed.
17. It is recommended to lubricate the new pump gasket with sealant on both sides and carefully place it in the landing zone.
18. Install a new pump onto the gasket.
19. Assembly work is carried out in reverse order.

Is it necessary to drain all the antifreeze from the system when replacing the VAZ 2110 pump?

Drivers, when independently changing the pump on a VAZ, often wonder about draining antifreeze from the system. How much is it necessary to drain the coolant at all and if drained, how many liters?

There are specific answers to these questions:

1. It is necessary to drain the antifreeze when performing any work on the elements of the cooling system. Draining the antifreeze ensures that pressure in the system is relieved and reduces the risk of injury. In addition, when dismantling and installing the pump, antifreeze will constantly leak from the landing zone, which will create a lot of inconvenience and ultimately lead to incorrect replacement.
2. Regarding the question of how much antifreeze needs to be drained, there are two solutions. The first is based on caring for the car. As a rule, it is customary to change the coolant along with the pump, so it is better to drain the antifreeze from the system completely. The second option is suitable for those drivers who have only recently replaced antifreeze. In this case, you can drain only part of the liquid from the system (about 2-3 liters) in order to relieve the residual pressure in the pipes.

Accordingly, after replacing the pump, you need to fill in the same amount of coolant that was drained before dismantling.

Features of replacement on a 16-valve engine

The difference when replacing a VAZ 2110 pump on a 16-valve engine comes down only to the fact that this engine has two camshafts, and therefore two drive gears.

Therefore, when disassembling, it is necessary to align the marks on both gears.

And then, during the disassembly process, make sure that the camshafts do not move and their position is not disturbed.

After installing a new pump and belt and then tensioning it, be sure to check that the marks match. That is, the crankshaft is rotated several times, then the marks are set on the camshafts and their alignment on the flywheel is checked.

This is the whole difference between the replacement process on 8- and 16-valve VAZ-2110 engines.

In general, the described process for replacing the water pump is suitable for almost all cars whose engine is equipped with a timing belt drive.

Of course, there will be a difference at some points in the disassembly, but it is not significant.

Therefore, the described sequence of action is almost universal, especially for VAZ cars, starting with model 2108.

Do-it-yourself VAZ 2110/2112 pump repair or VAZ 2110 pump replacement

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.

Disassembling the pump

The pump is disassembled in the following sequence:

1. The removed pump is wiped with a dry cloth.
2. Using a special puller, the pulley is removed.
3. The bearings are knocked off the shaft with a hammer.
4. The shaft is removed from the pump housing.
5. The impeller is removed.
6. The oil seal or what is left of it is removed.
7. The insides are thoroughly washed and cleaned.

If the pump is leaking, the seal must be replaced. The cause of a whistle at high speeds is usually a strong shaft wear.

Features of replacing the pipe on the pump and subsequent replacement of the VAZ 2110 pump

Due to the fact that the pressure is unstable, the hoses in the cooling system often become deformed for the flow or removal of fluid. If the pipe is swollen or cracks appear on it, then the rubber may “shoot out”.

To change the pipes on the pump, you should:

• loosen the clamp clamp;
• remove clamps and pipes;
• remove fasteners;

• remove the engine compartment pipe;
• remove the pipes.

On most modern cars, pump No. 2 is installed in the factory workshops, so the engine is easily cooled under increased loads. On the X generation VAZ, an additional unit is installed in order to optimize the operation of the stove in winter.

Replacing the oil seal or replacing the pump VAZ 2110

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:

1. The old seal is removed from the shaft.
2. The seat is cleaned of dirt.
3. A new seal is installed.

Pump leaks are usually caused by worn out seal.

Replacement of shaft and bearings

Often, due to high production, bearings have to be replaced. They can only be knocked out using special tools (a puller or a hydraulic vice). Therefore, a new shaft with bearings already mounted on it is usually installed in the pump.

The pump shaft is replaced along with the bearings

Instructions

A detailed and sequential process for replacing the pump will be considered for a VAZ-2112 with a 16-valve 1.6 engine:

1. 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.
2. Remove the front wheel on the right.
3. 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.
4. 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.
5. Loosen the alternator and timing belt using the tension roller, which just needs to be loosened slightly.
6. Unscrew the crankshaft mount.
7. After loosening the fastening, remove the pulley.
8. Next, it is necessary to disassemble the gas distribution mechanism, during which all elements are dismantled - casing, pulleys and rollers.
9. Only now we get to the pump. Unscrew its mounting bolts - 3 pieces. Dismantle the device.
10. Pull out the pump completely.
11. 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.

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