Where is the oil seals on the VAZ 2114 engine. Rear oil seal removal step by step

03.11.2019

Body

A VAZ car is a complex device, the components of which have different service lives. Crankshaft seals can be replaced at home. The article describes the process of how to change the crankshaft oil seal on a VAZ 2114 - a video with step-by-step instructions for replacing.

Where is?

In order to prevent grease from getting on components outside the oil pan, there are oil seals on the outlets through which the crankshaft is connected to other engine components. One of them is front, the other is back. Their purpose is to ensure the tightness of the case.

Sealing cuffs of a cranked shaft

The front one is behind the crankshaft pulley on the oil pump. To replace the rear, it is necessary to dismantle the gearbox, clutch and flywheel, then the rear cuff will already be available. You can see it visually in the video posted at the end of the article.

Causes and symptoms of a malfunction

It is believed that the planned replacement of the crankshaft sealing rings on the VAZ 2114 s should be carried out in three years. But you can change it earlier if an oil leak appears, for example, after the engine has overheated.

Reasons for the destruction of seals:

natural wear and tear during operation;
incorrect installation may cause cracks on the surface of the ring;
mechanical damage;
low-quality consumables - a fake.

If oil consumption has increased due to the fact that it comes out and at the same time traces of oil are observed on the front of the engine, then the front crankshaft seal must be changed. The need to replace the rear can be determined by slipping the clutch, which is caused by oil getting on the basket and clutch release plate.

Step-by-step replacement instructions for 8 valve cars

Replacing the front crankshaft oil seal on a VAZ 2114 8 valves consists of the following steps:

First of all, prepare the tools.

Prepared tools for work

First you need to dismantle the crankcase protection and the timing belt protective cover.

Next, you should set marks on the shafts.

Then you need to loosen the mounting bolts and dismantle the timing belt.

To access the crankshaft pulley, you need to remove the front wheel.

Now you should remove the pulley and alternator belt.

Using a special puller or two screwdrivers, remove the crankshaft pulley with the key.

Drain the engine oil.

Next, unscrew the oil pump, in which the oil seal is located.

Remove the oil pump with cuff

The cuff is removed with a screwdriver.

We lubricate the new oil seal and insert it using a pipe of a suitable diameter or using an old sealing ring.

Next we do the reassembly.

The video shows step by step how to change the rear cuff on a VAZ.

To remove the rear crankshaft seal, experience in repair work is required, it is better to do this with an assistant. The steps to replace it are:

First you need to disconnect the engine from the gearbox.
Next, remove the clutch.
Then, unscrewing 4 bolts, remove the flywheel.
To change the oil seal, you can remove the housing in which it is located, or change it directly in it.
Then remove the old sealing ring.

Remove the O-ring from the holder.

We insert the cuffs using a suitable press fitting.

Next, we assemble in the reverse order.

When buying oil seals, you should consider what kind of lubricant is used. For synthetic and mineral oil, cuffs of different materials are used. After completing the procedure, start the VAZ 2124 engine and check the condition of the o-rings so that there is no oil leakage anywhere.

Video "Replacing the rear crankshaft seal"

This video shows a step by step replacement of the crankshaft rear O-ring.

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Ivan Ivanovich Baranov

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On any car, crankshaft oil seals seal the technical holes in the engine, on the one hand, preventing dirt from penetrating inside, and on the other, preventing oil leakage. Leakage of oil seals is manifested in oil leaks on the cylinder block from the side of the timing belt or the rear of the engine.

The main sign by which ordinary owners of the VAZ 2114 and illiterate servicemen “sentence” oil seals is an oil leak. Indeed, an oily sump and a block on the timing side are a sign of a leak in the front oil seal, and streaks in the flywheel area are a sign of the rear. But there are two "buts".

Signs of oil leakage through the front oil seal

Firstly, oil leakage can be caused by other reasons, and, secondly, seal leaks can be the result of a more serious malfunction.

Among the common causes of oil leakage in the area of \u200b\u200bthe seals:

Oil pressure sensor or oil filter bracket: oil can drip from them onto the actuator and fly around.
Leak from the oil channel plug under the cylinder head cover.
Leak from the camshaft seal.
A feature of the VAZ 2114 with an 8-valve engine: the opening of the first collector stud from the front of the engine passes through the oil channel. When replacing the inlet gasket, this stud must be lubricated with sealant, otherwise a leak will appear.

Often seal problems are symptoms of other problems. If the leak reappears shortly after the replacement, it may be due to poor-quality consumption, or it may be the result of the following problems:

The breather is clogged (relevant for VAZ 2114 engines with high mileage - more than 200 thousand kilometers), and the stuffing box is squeezed out by crankcase gases. When replacing, it will be useful to remove the valve cover and clean the filter mesh.
The rings are stuck. Another reason for squeezing oil through the stuffing box. In this case, additional signs will be uneven compression and oil leaks from the dipstick.
With camshaft play, the oil seal can be squeezed out by the shaft itself when the clutch is pressed. One of the saddest cases: the exit is the capital of the engine.

Another cause of leakage from the stuffing box can be filling with low viscosity oil. Follow the manufacturer's recommendations for oils for the VAZ 2114.

In any case, along with the replacement of oil seals, it is better to check the condition of the nodes with which their leakage may be associated.

Replacing the front oil seal with some car mechanic skills can be done independently.

remove the protective covers of the crankcase and timing;
align the ignition marks so as not to knock down the operation of the gas distribution mechanism;
remove the timing belt;
dismantle the pulley and remove the alternator belt;
remove the crankshaft pulley (you will need a puller, do not forget to purchase it);
remove the oil pump (drain the oil beforehand);
evaluate the condition of the gland (it can be “oak” from time to time or, conversely, softened from oil);
Press in a new oil seal with a suitable size head.

Pressing the front crankshaft oil seal

Replacing the rear oil seal is an extremely time-consuming process that accompanies checking the condition of important vehicle components - the crankshaft and clutch parts.

The process for replacing the crankshaft rear oil seal is as follows:

separate the engine and gearbox;
remove the clutch and flywheel;
pull out the old seal and press in the new one.

Along the way, we check the shaft for play, study the state of the clutch, after assembling the engine, you should also make sure that the breather is passable.

After replacement, observe the operation of the car at idle, make sure there are no leaks. For a while, try not to be zealous with excessive revving of the engine. Oil seals need time to "get used" to the temperature regime. Due to the high oil pressure in the system, they can be squeezed out again.

Camshaft drive diagram

In this case, the procedure differs depending on which particular gland is in question - front or rear. We will tell about each of them separately.

To perform this procedure on your VAZ 2114 car, you will need a minimum set of tools, which includes:

Socket head 10 millimeters;
Wrench 10 millimeters;
Mandrel;
Screwdriver.

We pry with a screwdriver

Replacement work is performed in the following sequence.

The oil pump is removed from the car. It is not difficult to do this, and it is quite possible on your own.
Next, the oil seal is removed from the cover of this same oil pump. Here you will need a thin screwdriver, with which the device is hooked and thus removed.
The new element is pressed in with a mandrel, the outer diameter of which should be about 41 millimeters. In this case, the working edge should be directed inward.
The oil pump is back in place.

It should be noted that clutch discs can become oily due to leakage through the gearbox input shaft seal, or due to the rear crankshaft seal.

The smells of oil from the engine and transmission are different, because many experienced specialists can determine which element has problems due to the smell.

Changing the rear oil seal is actually somewhat more difficult than the front one. But this does not take away the fact that the work is still more than realistic to do with your own hands.

Disassembled

Following the instructions step by step, replacing the crankshaft oil seal on a VAZ 2114 will be a fairly simple event for you that will replenish your baggage of experience in self-repairing a car.

Disconnect the negative terminal from the battery of your VAZ 2114.
Make notes on the location of the flywheel relative to the crankshaft, and then dismantle it.
Next, the rear shield of the clutch housing is removed from the guide bushings.
The next step is to remove the eight bolts that are responsible for fixing the gland.
This will allow you to remove the holder.
The gland is pressed out of its holder.
The new element is installed in place of the old one until it stops. Here again you need a mandrel. Its outer diameter is 99 millimeters. Press in the element so that its working edge is directed inward.
To make pressing easier, a chamfer is made on the seating edge of the element using a needle file. An alternative bevel tool is a small emery wheel.
Now we change the gasket, which is probably torn on the holder. Even if the old gasket looks fine, we strongly recommend that you replace it with a new one.
The gasket is glued with a special grease of a thick consistency. This will ensure the strength of its retention, as well as additional tightness of the connection.
The working edge of the pressed-in oil seal is treated with ordinary engine oil, as is the case with the front one.
The crankshaft flange is subjected to a similar treatment.
The fasteners of the engine oil sump to the cylinder block will need to be slightly loosened. To do this, it is enough to make 2-3 turns on each of the 14 bolts that hold the crankcase.
During the installation of the holder, the working edge of the new oil seal is carefully tucked onto the crankshaft flange. Arm yourself with a wooden stick for this purpose, but do not use metal objects.
Screw back the holder bolts.
Screw back the crankcase mounting bolts.
Place the clutch cover back on the guide bushings.
According to the previously applied places, mount the flywheel, gearbox and clutch in place. In order for the flywheel mounting bolts to have a high quality of adhesion and reliability, pre-apply sealant to their threaded part.

It is obvious that it is quite possible to replace the crankshaft oil seals on a VAZ 2114 car with your own hands. The procedure requires accuracy and consistency. Plus, do not forget to use new high-quality auto parts so that after a short period of time you do not have to carry out the entire procedure again.

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Oil leakage from the engine is a very unpleasant event in the life of any motorist. One of the reasons for the appearance of a leak may be the wear of the front crankshaft oil seal. To find out whether the crankshaft oil seal is really to blame for the oil leak, it is necessary to remove the protective cover of the timing and determine the location of the leak. If the fears are confirmed and the oil seal is worn out, then you need to immediately start replacing this part.

Independent replacement of the crankshaft oil seal VAZ-2114 two ways: right or fast. The quick way is that the worn cuff is simply picked out with a screwdriver and a new part sits in its place, that is, repairs are carried out without removing the oil pump. If the repair is carried out correctly, it is necessary to completely disassemble the oil pump. The manufacturer recommends just such an option for replacing the crankshaft oil seal, so we will talk about it in our article.

To carry out this type of work, it is necessary to prepare a new crankshaft oil seal, a gasket for the oil pump and oil sump, as well as a garage with a viewing hole, or find a convenient flyover.

We carry out preparatory work:

We post the right front wheel;

Completely drain the oil from the engine.

Now let's start the disassembly:

We unscrew the bolts securing the front timing cover and remove it;

With the key No. 8, we unscrew the six bolts of the right engine protective cover. Remove the released casing and set aside;

We release the nut of the generator tensioner bar and move the generator itself to the side;

Remove the belt from the generator drive pulley;

We sit in the driver's seat and turn on the first gear;

Unscrew the nut holding the pulley to the crankshaft. We use the key number 17;

Remove the crankshaft pulley;

Let's start removing the timing belt. Before performing this action, it is necessary to correctly set the marks that are located on the camshaft pulley and the rear timing cover. The labels should be opposite each other;

Using a wrench, loosen the roller tension bolt - tensioner;

Remove the timing belt;

We unscrew the four bolts holding the lower clutch housing. We take it off;

Now you need to unscrew the sixteen bolts securing the oil sump to the engine block. The oil sump is removed along with the gasket;

We unscrew the fasteners of the oil receiver to the bearing cap and the pump housing. We remove the oil receiver;

Using two flat screwdrivers, remove the toothed pulley from the crankshaft;

Pry off the key with a screwdriver and pull it out of the crankshaft. This action must be performed with the utmost care, since the key is small and can easily be lost;

Now we unscrew the fixing bolts of the oil pump, attaching it to the engine block;

We remove the oil pump;

We pry off the worn oil seal with a flat screwdriver and take it out;

We install a new oil seal in its place and assemble the unit in the reverse order.

Let's talk about some of the nuances that you should remember when assembling:

A new oil seal must be lubricated with engine oil, only then it can be installed;

The stuffing box must be pressed into the pump cover until it stops. This can be done using the end head;

A new gasket for the oil pump is coated with sealant on both sides;

When installing the oil pump, you need to look so that the edge of the new oil seal is not wrinkled;

The gasket under the crankcase is also coated with sealant;

When reinstalling the timing belt, check that the marks match;

After complete assembly, do not forget to add new engine oil to your engine.

A VAZ car is a complex device, the components of which have different service lives. Crankshaft seals can be replaced at home. The article describes the process of how to change to a VAZ 2114 - a video with step-by-step instructions for replacing.

[ Hide ]

Where is?

Sealing cuffs of a cranked shaft

Causes and symptoms of a malfunction

Reasons for the destruction of seals:

natural wear and tear during operation;
incorrect installation may cause cracks on the surface of the ring;
mechanical damage;
low-quality consumables - a fake.

Step-by-step replacement instructions for 8 valve cars

Replacing the front crankshaft oil seal on a VAZ 2114 8 valves consists of the following steps:

The video shows step by step how to change the rear cuff on a VAZ.

To remove the rear crankshaft seal, experience in repair work is required, it is better to do this with an assistant. The steps to replace it are:

Replacing the crankshaft oil seals is considered one of the most difficult types of repair for the VAZ 2114. To install the front one, you have to remove the timing belt, and the rear - the gearbox. In car services, such repairs are expensive, but without a pit and an assistant, the procedure is almost impossible.

Signs of oil leakage through the front oil seal

Firstly, oil leakage can be caused by other reasons, and, secondly, seal leaks can be the result of a more serious malfunction.

Among the common causes of oil leakage in the area of \u200b\u200bthe seals:

Oil pressure sensor or oil filter bracket: oil can drip from them onto the actuator and fly around.
Leak from the oil channel plug under the cylinder head cover.
Leak from the camshaft seal.
A feature of the VAZ 2114 with an 8-valve engine: the opening of the first collector stud from the front of the engine passes through the oil channel. When replacing the inlet gasket, this stud must be lubricated with sealant, otherwise a leak will appear.

Often seal problems are symptoms of other problems. If the leak reappears shortly after the replacement, it may be due to poor-quality consumption, or it may be the result of the following problems:

The breather is clogged (relevant for VAZ 2114 engines with high mileage - more than 200 thousand kilometers), and the stuffing box is squeezed out by crankcase gases. When replacing, it will be useful to remove the valve cover and clean the filter mesh.
The rings are stuck. Another reason for squeezing oil through the stuffing box. In this case, additional signs will be uneven compression and oil leaks from the dipstick.
With camshaft play, the oil seal can be squeezed out by the shaft itself when the clutch is pressed. One of the saddest cases: the exit is the capital of the engine.

Another cause of leakage from the stuffing box can be filling with low viscosity oil. Follow the manufacturer's recommendations for oils for the VAZ 2114.

In any case, along with the replacement of oil seals, it is better to check the condition of the nodes with which their leakage may be associated.

Replacement process

Replacing the front oil seal with some car mechanic skills can be done independently.

The algorithm is:

remove the protective covers of the crankcase and timing;
align the ignition marks so as not to knock down the operation of the gas distribution mechanism;
remove the timing belt;
dismantle the pulley and remove the alternator belt;
remove the crankshaft pulley (you will need a puller, do not forget to purchase it);
remove the oil pump (drain the oil beforehand);
evaluate the condition of the gland (it can be “oak” from time to time or, conversely, softened from oil);
Press in a new oil seal with a suitable size head.

Pressing the front crankshaft oil seal

Replacing the rear oil seal is an extremely time-consuming process that accompanies checking the condition of important vehicle components - the crankshaft and clutch parts.

Process h crankshaft rear oil seal replacement is as follows:

separate the engine and gearbox;
remove the clutch and flywheel;
pull out the old seal and press in the new one.

Along the way, we check the shaft for play, study the state of the clutch, after assembling the engine, you should also make sure that the breather is passable.

An engine oil leak is a rather sad picture. In this case, the front part of the engine crankcase turned out to be heavily oiled. Having removed the timing protection, we inspect the oil pump cover - a rather inaccessible place, closed by the generator pulley. We see that oil flows strongly from the area near the front crankshaft oil seal.

The cause of the engine oil leak has been determined, and therefore, you can safely proceed with the repair.

Replacing the front crankshaft oil seal VAZ 2114 produced as follows: either quickly or correctly. In the first case, they simply pick out the cuff and install a new one, without removing the oil pump. In the second case, a complete and consistent disassembly is performed - as prescribed in the repair manual.

Naturally, we preferred the second, correct option.

Of the spare parts, we need a front crankshaft oil seal, as well as gaskets for the oil sump and oil pump. All work is carried out either on a viewing hole, or on a flyover, or on a lift. In this case, we will not need a special tool. First of all, we need to hang out the front right wheel and then remove it. Then you need to drain the oil from the engine crankcase.

Using key No. 10, we unscrew 4 bolts of the front timing protection, then remove it.

With the key number 8, we unscrew the bolts (6pcs) that secure the right half of the lower protective casing of the engine. We remove the casing, then using the key No. 17 we loosen the nut with which the generator is attached to the tension bar, and by sliding it, we remove the drive belt.

We put the gearshift lever in first gear and unscrew the bolt with the key No. 19, with which the pulley is attached to the crankshaft. Remove the pulley from the crankshaft.

Now we need to remove the timing belt, for which we first need to switch the lever to fifth speed and align the alignment marks on the rear protective cover of the toothed belt and the camshaft pulley, while rotating the posted wheel.

It does not hurt to make sure that the mark on the flywheel visible in the hatch of the clutch housing is opposite the middle division of the scale.

With the key number 17, we loosen the fixing bolt of the tension roller, then remove the timing belt.

With the key number 10, we unscrew the bolts that secure the lower cover of the clutch housing, then remove it.

Now, using a 10 head, we unscrew 16 bolts with which the oil sump is attached to the cylinder block. We remove the crankcase along with the gasket.

Using the same wrench, we unscrew the bolts with which the oil receiver is attached to the pump housing, as well as to the cover of the 2nd main bearing, and remove the oil receiver.

We shift the toothed pulley from the crankshaft with two screwdrivers.

Pry off the key with a screwdriver, then remove it from the groove of the crankshaft. In this case, one should act very carefully, since this key is very small, and therefore quite insidious - it is easy to lose it, but it is very difficult to look for it.

Important! Do not forget to remove the old oil pump gasket from the cylinder block (usually it sticks to the cylinder block).

Upon completion of the work, they examined the old oil seal and made sure that the cause of the engine oil leakage was correctly determined - the working edge of the oil seal was worn out by more than 2 millimeters, which caused the oil to leak.

Assembly should be done in reverse order of disassembly.

The new oil seal must be lubricated with engine oil and pressed into the cover until it stops, using a mandrel of a suitable diameter. We put a new gasket under the oil pump, having previously lubricated it with sealant on both sides.

During the installation of the oil pump, it is necessary to ensure that the two guide pins of the housing fit exactly into the holes of the cylinder block, and the working edge of the oil seal is not crushed.

A new gasket should also be installed under the oil sump, also lubricating it with sealant on both sides. At the end of the installation and tension of the timing belt, we check whether the installation marks match. If everything is done correctly, it remains only to pour engine oil into the engine.