The water pump of the engine cooling system, or simply the pump, is the most important element that is responsible for pumping coolant through the channels of the cooling system. Fluid circulation in the system is mandatory to maintain normal engine operating temperature.
If the pump wears out, partially or completely fails, you may encounter the following malfunctions:
- engine overheating;
- coolant leaks through the pump;
- extraneous noise in the pump area;
- water pump jamming and timing belt breakage;
To avoid serious damage, regular inspection and timely replacement of the VAZ 2114 pump is necessary. To do this, you will need to remove the drive from the water pump, dismantle the pump and correctly install the new pump. Read more in our article.
Cooling system water pump: device
Pump 2114, like on many other cars, has the following design:
- steel or aluminum body;
- impeller (impeller);
- the impeller is mounted on a drive shaft with a pulley on one side;
- on the other side of the shaft there is a pump bearing;
Inside the pump body there are special channels for supplying and discharging antifreeze. By rotating the drive shaft (driven by the timing belt) with the impeller, it is possible to realize efficient and constant circulation of coolant in the engine cooling system. Moreover, if the engine is not running, the pump also does not rotate and liquid does not circulate in the system.
Coolant leak
A clear sign of a pump malfunction on a VAZ 2114 is a coolant leak. It is very difficult not to notice her. Antifreeze can leak from under the seals, from the housing or the impeller. In the event of a breakdown, antifreeze must be present on the pump. It can also fill the entire engine compartment and flow out onto the ground under the car. There may be a sweetish smell of antifreeze in the cabin. Of course, this symptom may indicate other problems in the cooling system. But when it appears, you should definitely check the pump, since it is often to blame for this.
Pump malfunctions
As a rule, the main breakdowns of a water pump include pump leakage, destruction of the impeller, wear and jamming of the drive shaft bearing. The most serious problem is a malfunction when the pump jams. In this case, there is a high probability of timing belt breakage and valve bending.
If the pump impeller is destroyed, the pump's performance drops and the engine begins to overheat. Often, destruction of the impeller occurs due to untimely replacement of antifreeze, severe contamination of the cooling system, natural wear, etc.
As for pump leaks, in this case the coolant level in the system may gradually or intensively decrease. If the seal is broken, and depending on the intensity of the leak, antifreeze can get onto the timing belt and damage the drive. Also, a decrease in coolant level can lead to overheating of the engine.
Signs and causes of pump malfunction on a VAZ-2114
General view of the water pump
Before determining the signs of failure of the water pump on the VAZ-2114, it is necessary to consider the reasons for what in the future will lead to a simple replacement of the pump.
So, let's look at the signs of a malfunction of this unit in more detail:
- Belt whistle . When the belt begins to whistle, this may not only be a signal to replace it, but also mean that the internal bearing of the product begins to wear out and becomes unusable. So, you can remove the assembly and replace only this part.
- Leaks from the gasket . Wear of the gasket and small drops from under it also signal a future malfunction and failure. So, it is worth replacing the gasket itself.
- Product backlash without whistling . A bearing failure or a broken water pump shaft seat can cause this effect. So, you can feel it by slightly shaking the shaft. Here, the only correct solution would be to replace the product, since a new bearing will not eliminate the play on the product itself.
Part of the process of removing the pump from the car
Now that the main reasons have been discussed, we can turn to the issue of signs of malfunction:
- Coolant leak from the water pump indicates that it has failed and the vehicle cannot be driven. This is due to the fact that the coolant will not circulate through the system, and the loss of fluid will reduce the ability to cool the engine.
Traces of smudges are clearly visible
- Bearing play can cause the timing belt to fail prematurely. In turn, this will lead to additional costs and work.
Elimination methods
There are several ways to troubleshoot the problem. So, we can consider the main ones:
- The easiest option is to replace the water pump assembly . Thus, the element is completely replaced, which normalizes the operation of the power unit.
- Replacing the pump bearing . Of course, not the easiest option, but relatively cheap. The only difficulty will be to disassemble the water pump.
- The gasket is replaced in cases where it is necessary to replace only this element if a breakdown or wear has occurred.
Pump selection
The choice of pump has already been discussed in our community in this material.
How to check the pump
The first signs that indicate the need to check the water pump include:
- extraneous noise when the pump rotates;
- engine overheating for no other apparent reason;
- decrease in coolant level and leakage in the pump area, the interior smells of antifreeze;
At the same time, you should not delay diagnostics, since ignoring individual symptoms can lead to more serious consequences (broken timing belt, critical overheating, etc.).
If a visual external inspection reveals no problems with the pump, then you will need:
- Start the engine and warm it up to operating temperature, then clamp the upper radiator hose with your hand. The circulation of fluid in the system will indicate that, at a minimum, the pump is working.
- You can also remove the timing belt cover and then inspect the oil seal. If there are no dark spots or drips, then the pump’s tightness is normal.
Please note that these testing methods are superficial and do not provide a complete guarantee that the pump is fully operational. For example, a pump 2115 or a pump 2114, as well as on any other car, can be completely dry and run quietly. In this case, bearing play in such a pump is still present, and the impeller inside can be partially destroyed. As a result, there is a risk of bearing jamming or rapid leakage through the seal.
It is also important to understand that a damaged impeller does not allow the pump to pump coolant normally, which leads to overheating. To exclude such hidden faults, for a detailed check the pump must be removed from the car, after which the shaft and bearing are checked for play, the condition of the oil seal, pulley, etc. is assessed.
For this reason, even if it is working properly, replacing the pump is recommended every 60-80 thousand km. mileage At the same time, experienced specialists recommend always changing the pump along with the timing belt (after 40-50 thousand km). It is also important to use high-quality spare parts from reputable manufacturers. Otherwise, the water pump may fail after 20-30 thousand km. mileage
In a situation where you need a high-quality VAZ 2114 pump, the price of such a spare part may seem somewhat overpriced. However, the cost of such a pump is completely justified, especially when you consider the cost of repairing the engine in the event of a broken timing belt. The main thing is to purchase an original product, since fakes of dubious quality are often found on the market.
Replacing the pump
If it is necessary to replace the pump, you need to ensure that you have a new timing belt. Before starting disassembly, you need to make sure that you have a set of screwdrivers, wrenches on hand, purchased replacement parts, gaskets, sealant, etc. The process will be much easier if the driver removes the right front wheel. It is better to dismantle it along with the protection. Preparation also includes removing the timing belt cover, which is bolted on. Afterwards you can remove the belt, pulley and generator roller. In general, the belt tension mechanism should be removed.
Instructions
- The replacement begins with dismantling the camshaft gear in the VAZ 2114. You can get it out using a socket wrench, which is placed in one of the holes. This action will “lock” the gear, and it will be possible to unscrew all the mounting bolts.
You need to remove the four bolts that hold the camshaft pulley cover in place.
Usually the gear sits loosely, but if there is resistance, it can be helped with a hammer. You also need to be especially careful when dismantling, since the locking key is located at the bottom of the gear. You can determine where the bottom is and where the top is by the gas distribution marks. You need to make sure that the key does not fall out, since the part is small. The easiest way to get it out is with a flat-head screwdriver.
- Then you need to drain all the antifreeze from the system. Once the liquid has been drained, the metal shield can be removed.
- The driver can now remove the inoperative water pump mechanism. Replacement may be delayed, since it is not always possible to remove the mechanism manually. A wooden pointer and a hammer can help in this matter. The pump must be removed when nothing is holding it. A screwdriver can simplify the process, but if there is noticeable resistance, you should not press with the tool, as the aluminum body can damage other elements.
- Once the mechanism is removed, you can begin installing the new pump. The place must be thoroughly cleaned of old sealant, and the old gasket must be removed. A layer of sealant should be applied to the new gasket and placed together with the new pump.
Replacement is simple, it is important that a new belt is installed along with the water pump. It is installed after the pump replacement is completed
Before starting use, you must wait until the sealant has completely dried.
https://youtube.com/watch?v=LH_irTNSM50
Replacing the pump on 2114
The pump on the VAZ 2114 is quite simple to change, as a result of which all the work can be done with your own hands. Once a new pump has been purchased, replacement is performed using the following tools:
- key to “10”;
- key to "17";
- key to "19";
- head at “10”;
- flat screwdriver.
On a VAZ 2114, replacing the pump is carried out as follows:
- The car must be driven into a pit or raised on a lift;
- Then you will need to remove the crankcase protection with key 17 and 19;
- Next, the engine must cool down (2-3 hours are required);
- After cooling, unscrew the valve from the radiator (on the left) to drain the antifreeze;
- Now you need to unscrew the bolt on the cylinder block to drain the coolant from the engine;
- Next, using a 10mm wrench, unscrew the three bolts that hold the outer timing belt casing;
- Using a 17 key, you need to break off the toothed pulley bolt (it is important not to lose the key, having set the marks in advance);
- Also, using a 17 key, you need to unscrew the belt tensioner roller nut and remove the belt tensioner;
- Next, you need to remove the belt from the upper toothed pulley and pump by moving the side of the radiator;
We also recommend reading the article on how to replace injectors or clean the injector of a VAZ 2114. From this article you will learn about the features of cleaning or replacing injectors of a VAZ 2114. - Then the bolt holding the pulley is unscrewed and the borrow is pulled out (do not lose the key);
- Using a small ratchet and a 10mm socket, unscrew the bolts and nut that hold the rear belt cover;
- Having removed the protection, use a flat screwdriver to pry the pump over the edge, after which the pump is removed;
- Next, it is necessary to clean the cylinder block from the old pump gasket (completely clean the pump seat with fine sandpaper, since otherwise the pump will become crooked and leak);
- The penultimate stage is to coat the new gasket with sealant on both sides, after which the gasket is placed in the pump seat;
- We complete the work by inserting the pump into place (it is important that the inscription on the pump is on top);
- After the new VAZ 2114 pump is installed, you can reassemble it and wait some time for the sealant to harden (preferably at least 12 hours);
- Then you can fill in antifreeze and check the quality of the new pump and its tightness.
What causes a pump malfunction?
Car enthusiasts must ensure that all parts of their car are functioning properly.
If something is not working properly, you need to pay attention to it and try to fix the problem. If you don’t trust your abilities, then contact a car service center, where specialists will quickly fix or replace everything.
You should not start problems as this may affect the overall performance of the car. For example, due to a breakdown of the pump, the circulation of coolant is often disrupted, and this leads to overheating of the car engine. To prevent this from happening, you need to repair the device in time. To do this you need:
- Start and warm up the car, and then clamp the upper radiator hose. If fluid circulation is observed, this means that everything is fine.
- Next, you need to remove the timing belt cover and check for black spots on the oil seal. If they are not there, then the part is working properly, therefore, there is no need to replace it.
You can tell that the pump is faulty by an unpleasant whistling sound. In such a situation, it is necessary to check the pump and replace it if necessary. The replacement procedure is quite complicated, but those who understand the machine can easily complete it. The main thing is to follow the instructions and follow the sequence:
- First you need to drive the car into the pit and remove the crankcase protection. The engine must be cooled down so as not to get burned on it;
- after this, you need to lift the hood and unscrew the valve from the radiator;
- unscrew the bolt on the cylinder block and drain the fluid;
- unscrew the bolt that holds the timing belt casing;
- remove the timing pulley bolt;
- unscrew the belt tensioner nut;
- remove the belt from the pulley and pump, and then move it to the radiator;
- remove protection;
- use a flat screwdriver to pry off the edge of the pump;
- remove the remaining gasket in the pump block;
- install a new pump;
- assemble everything in reverse order.
As we can see, the procedure is not easy. These recommendations will be useful to those who have experience performing similar tasks. But it’s better, of course, to contact a service center, where they are guaranteed to replace the pump correctly. If you make a mistake during replacement, serious problems with the cooling system may begin, which are sometimes not immediately noticed, which further aggravates the situation. You shouldn’t risk your vehicle, it’s better to pay the experts and continue to operate your iron horse, forgetting about breakdowns and malfunctions. Today pumps cost from 500 to 1,000 rubles. It is advisable to purchase more expensive options, as they have high technical characteristics.
You should not delay this, as the liquid from the pump can block the bearing, which will lead to a break in the timing belt, which will begin to bend the valve. As a result of all this, several parts of the car will have to be replaced, which will be very expensive. Timely repair or replacement of the pump will save your budget and prevent other breakdowns.
The online store AvtoALL.RU has a wide range of pumps for VAZ of the entire model range of cars, from leading domestic and foreign manufacturers, such as TZA, HEPU, HOLA, PEKAR and others.
Typical pump problems include leaking or humming bearings. In both the first and second cases, it is necessary to immediately replace the faulty pump with a new one. Otherwise, problems will arise with the engine cooling system, which will lead to malfunctions of the engine itself.
The choice is large and often difficult. So call us and we will help you choose a pump for your VAZ car. It is not always worth relying on tests in automobile magazines; many articles are written as advertisements and most of them are custom-made. The right choice would be the help of a specialist who is well versed in all the intricacies and will help you make the right choice.
Recommendations
Although the pump on a VAZ 2114 is relatively easy to change (by the way, the pump on a VAZ 2115, 2114 or 2113 is changed in the same way), it is important to thoroughly clean the pump seat when replacing. The fact is that installation on old sealant will lead to an insufficiently tight fit. As a result, water pump leaks occur immediately or a little later, which will require repeated removal of the pump.
It is imperative that after installing a new pump, you need to give the new sealant time to completely harden. Only after hardening can antifreeze be poured into the system. A common mistake is to install the pump and immediately pour fresh coolant into the system.
We also recommend reading the article on how to check the pump without removing it from the car. From this article you will learn about the available ways to check the pump on a car.
After the new pump has been installed and antifreeze has been poured into the system, you should start the engine and warm up the engine to operating temperatures. Next, you should inspect the pump installation site for stains and drips.
You also need to conduct a test drive after replacement, and it is better to drive on uneven roads at medium speed. If no knocks are heard, the engine temperature is normal, and during a subsequent visual inspection there are no leaks in the pump area, replacing the VAZ 2114 pump with your own hands can be considered correct and completed successfully.
