Lip seals (oil seals) installed on a vehicle

1. NIVA gearbox seals:

-Oil seal for the input shaft of the gearbox (gearbox) NIVA-2121, -21213, -21214, -2131, -2123:

Catalogue number: 2101-1701043

oil seal dimensions: 28x47x8mm

- Seal of the secondary shaft of the gearbox (shank) VAZ-2121, -21213, -21214, -2131, -2123:

Catalogue number: 2101-1701210

oil seal dimensions: 32x56x11mm

2 . NIVA front axle oil seals:

-Oil seal for the front axle gearbox NIVA- 2121,-21213,-21214,- 2123,-2120

catalog number: 2121-2302052

Dimensions: 35.8 x 68 x 11mm

-Drive seal -2121,-21213,-21214,-2131,-2123, universal (without direction)

Catalog number: 2123-2303120 / 121 2 pcs.

seal dimensions: 57.15 x 40 x 9mm

But it is better to install seals with a notch (left, right):

Left drive oil seal -2121,-21213,-21214,- 2123

Catalog number: 21213-2301035 1 piece.

Oil seal dimensions: 57.15 x 40 x 9mm

Right drive oil seal -2121,-21213,-21214,-2123

Catalog number: 21213-2301034 1 piece.

Oil seal dimensions: 57.15 x 40 x 9mm

3. Transfer Case Seals 3pcs:

2 identical oil seals are installed on the valve:

catalog number: 2101-2402052-01 (this is the rear axle gearbox seal on the VAZ-2101 and NIVA-2121 of right rotation),

one is installed on the drive shaft of the RK:

(in the lower diagram), the second is on the front shaft of the RK differential (see the upper diagram - highlighted in red)

Dimensions of these seals in mm: 35.8 x 68 x 10(12) 2 pcs.

An oil seal is installed on the rear shaft of the RK differential - this is the 3rd oil seal (highlighted in blue in the top diagram)

with catalog number: 2121-2302052 left rotation 1 pc.

Dimensions in mm: 35.8 x 68 x 11(12)

4. Rear axle gear oil seal :

catalog number: 2101-2402052-01 (rear axle gearbox VAZ-2101) 1 pc.

5. Axle shaft seals for Chevy NIVA-2123:

NIVA oil seals

1. NIVA gearbox seals:

-Oil seal for the input shaft of the gearbox (gearbox) NIVA-2121, -21213, -21214, -2131, -2123:

Catalogue number: 2101-1701043

oil seal dimensions: 28x47x8mm

- Seal of the secondary shaft of the gearbox (shank) VAZ-2121, -21213, -21214, -2131, -2123:

Catalogue number: 2101-1701210

oil seal dimensions: 32x56x11mm

2 . NIVA front axle oil seals:

-Oil seal for the front axle gearbox NIVA- 2121,-21213,-21214,- 2123,-2120

catalog number: 2121-2302052

-Drive seal -2121,-21213,-21214,-2131,-2123, universal (without direction)

Catalog number: 2123-2303120 / 121 2 pcs.

seal dimensions: 57.15 x 40 x 9mm

But it is better to install seals with a notch (left, right):

Left drive oil seal -2121,-21213,-21214,- 2123

Catalog number: 21213-2301035 1 piece.

Oil seal dimensions: 57.15 x 40 x 9mm

Right drive oil seal -2121,-21213,-21214,-2123

Catalog number: 21213-2301034 1 piece.

Oil seal dimensions: 57.15 x 40 x 9mm

3. Transfer Case Seals 3pcs:

2 identical oil seals are installed on the valve:

catalog number: 2101-2402052-01 (this is the rear axle gearbox seal on the VAZ-2101 and NIVA-2121 of right rotation),

one is installed on the drive shaft of the RK:

(in the lower diagram), the second is on the front shaft of the RK differential (see the upper diagram - highlighted in red)

Dimensions of these seals in mm: 35.8 x 68 x 10(12) 2 pcs.

An oil seal is installed on the rear shaft of the RK differential - this is the 3rd oil seal (highlighted in blue in the top diagram)

with catalog number: 2121-2302052 left rotation 1 pc.

Dimensions in mm: 35.8 x 68 x 11(12)

4. Rear axle gear oil seal :

catalog number: 2101-2402052-01 (rear axle gearbox VAZ-2101) 1 pc.

5. Axle shaft seals for Chevy NIVA-2123:

Seals for VAZ-2110 drives of right and left rotation are installed

catalog numbers of oil seals: 2110-2301034 right - 1 piece

gland dimensions in mm: 57 x 35 x 9

In the photo: VAZ-2123 axle seals (BRT) red-left, black-right.

The arrow on the oil seal indicates the direction of rotation of the shaft (when the vehicle is moving forward).

Source

Applicability

The parts data presented on this page is for informational purposes only.

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All spare parts from A to Z (0 spare parts as of 08/02/2019)

How to determine when it's time to change?

Under the influence of temperature and aggressive substances contained in the oil, the elastic cuffs become rigid. Rotating shafts gradually wear out rubber or silicone. As a result, the connection loses its tightness. This manifests itself in the form of oil leaks. If there is severe wear after parking, you can find oil drops under the car in the area of ​​the gearbox.

If the input shaft seal is damaged, lubricant leaks onto the clutch disc. As a result, the oil begins to burn, as evidenced by a characteristic odor. In this case, the clutch may slip under heavy load.

Important! Seal wear is also indicated by a drop in oil level. In this case, the parts must be replaced with new ones.

Replacement: step-by-step instructions

First, unscrew the bolts securing the cardan to the flange and hang the cardan shaft under the bottom. After this, you need to measure the torque of the shank using a dynamometer or canter. To do this, wind a cord around the flange, tie its end to the measuring device and pull. Memorize or write down the force at which the shank begins to rotate. This will come in handy when assembling the unit.

Hold the flange with a wrench and unscrew the fastening nut.

The work takes no more than two hours. After replacing the oil seal, especially if it had to be changed due to oil leakage, it is necessary to check the transmission level in the gearbox.

Replacing the secondary shaft oil seal

To work, you will need a standard set of wrenches, a hammer, a mandrel and a screwdriver. The materials you will need are sealant and kerosene for washing spare parts.

Replacing the secondary shaft oil seal of the Niva Chevrolet gearbox requires preliminary dismantling of the oil seal. After this you need to do the following:

• Remove the centering ring seal.
• Unscrew the nut holding the shank flange.

• Remove the centering ring.
• Pull out the lock washer.
• Remove the flange.
  Using a screwdriver, remove the oil seal from the mounting hole.

  Apply a thin layer of sealant to the outer surface of the body of the new part.

  Using a mandrel, press the part into the gearbox cover.

  After this, all that remains is to check the oil level and install the flush valve in place.

  To replace the input shaft seal of the Niva Chevrolet gearbox, it is necessary to dismantle the gearbox. After this, all that remains is to wipe its body with a rag and get to work. To replace a worn part, you must:

  Using a 13mm wrench, unscrew the nuts and remove the clutch housing cover.

When the replacement is complete, you need to put the box back in place.

Alternative Corteco oil seals for LADA 4×4

Everyone knows that one of the most loaded components in a Niva is the transmission, so many owners try to approach the operation of these units with attention and care. An important condition for extending the life of axles, gearboxes and gearboxes is the choice of good gear oil. But even in this case, the oil seals remain the weakest point. Personally, I settled on oil seals from the Italian company Corteco (I had an unpleasant experience with domestically produced products; they leaked again after 5000 km). In order not to look for oil seal numbers on the Internet, I post their numbers here (you can freely order them in Exist, Russian analogues are given in brackets) : Front crankshaft oil seal 12011455

(2101-1005034)
Rear crankshaft oil seal 12011438
(2101-1005160)
Gearbox oil seal, primary shaft 12011445
(21010-1701043)
seal, secondary shaft 12011450
(21010-1701210)
RZM 120 shank oil seal 11293 (RK oil seal for front cardan drive, input shaft seal)
(2101-2402052)
RPM shank oil seal (RK oil seal for rear cardan drive) 19034615
(2121-2302052)
Rear axle shaft oil seal (st/o) 12011493
(2101-2401034)
Rear axle shaft oil seal (n/o) (reversible) 12015250 reversible ny
( 2110-2301034/5)
Front drive reversible oil seal 12019142
(21213-2301034/5.)
Hub oil seal 12016929
(2121-3103038)
Oil scraper cap 19018251
(2101-1007026)

Packaging of seals can be of 2 types: cardboard boxes, on the end of which there is a Corteco catalog number or a plastic bag, also with a catalog number.

Source

Transfer case device

The Chevrolet Niva transfer case redistributes engine torque between the drive axles and, if necessary, changes the gear ratio and locks the center differential. The parts of this assembly require significant force. Therefore, RK gears and bearings operate in an oil environment.

To prevent oil leakage from the transfer case, oil seals are installed at the joints of the housing and rotating drive shafts. They consist of two parts: a metal body and a rubber cuff, tightened by a spring. The latter ensures sealing of the connection due to the tight fit of the rubber to the shaft.

Preparation and disassembly

To independently remove a leaking rear axle oil seal on a Niva Chevrolet, you will need the following tools:

• standard set of wrenches;
• slotted screwdriver and wheel wrench;
• jack;
• hammer;
• wooden stand;
• cloth gloves.

Never neglect gloves when repairing a car: they will protect your hands from damage due to accidental impacts. The height of the wooden stand should be enough to support the rear axle with the wheel removed and the shock absorber unscrewed, otherwise oil will leak from it.

Also interesting: Disassembly and assembly of the Niva 2121, Niva 2131 gearbox

Before removing the old seal, you will have to disassemble the rear hub assembly and remove the axle shaft. Disassembly is carried out in the following sequence:

1. Place the car on a level surface and secure it with wheel chocks. Make sure the handbrake is turned off.
2. Loosen the wheel nuts, jack up the car and remove the wheel.
3. Clean the rear axle flange that protrudes beyond the brake drum from rust. Additionally, you can treat this area with WD-40 lubricant.
4. Unscrew the 2 bolts securing the drum with a 12 mm wrench, then gently tap with a hammer to move it out of place.
5. The drum is removed in 2 ways: by squeezing it out with the same bolts, screwed into other holes, or by knocking it with a hammer through a piece of wood. The methods can be combined, just be careful not to damage the edge of the drum with the blows.
6. After dismantling, clean the seat on the axle shaft again to make the drum easier to remove.

The next step is unscrewing and removing the axle shaft. In the VAZ 2131 Niva Chevrolet, 4 bolts securing it are held on the other side by a bracket holding the shock absorber.

To avoid this, you need to first adjust the stand by jacking the car higher. The rear axle “stocking” must rest with a slope in the other direction so that the oil does not leak out.

Since in a regular Niva VAZ 21214 and 21213 the shock absorber is attached to the spring cup, and not to the rear hub, there is no need to unscrew it. A stand is also not needed here; a jack is enough to lift it.

The 4 bolts holding the rear axle shaft are unscrewed with a 17 mm wrench. Pay attention to the growers: they should not get lost in the brake mechanism. If you ignore the loss of the groover and install a new one, then the old one will subsequently get between the block and the drum while driving and the wheel will jam.

After unscrewing the bolts, with a sharp movement, remove the axle shaft with the bearing from the cage. If this fails, attach the wheel to the studs with 3 nuts and try to pull it. The last option is to use a special inertial puller for removal. There is also a popular method: tie the axle shaft with a rope to an iron garage door and hit it with a hammer to knock it out of the cage. But for this you need to carefully park the car closer to the gate.

Also interesting: Chevrolet Niva suspension: front, rear, device and tuning

Article, size and manufacturers of reinforced cuffs

Initially, oil seals with an outer diameter of 68 and an inner diameter of 35.8 mm were installed in the transfer case. two types:

• 2121-2302052 — one oil seal. A similar part is installed on the drive gear of the front axle;
• 2101-2402052-01 — two oil seals in the Republic of Kazakhstan. The same part is located on the drive gear side of the rear axle.

The installation of different seals is explained by the different directions of rotation of the drive shafts.

Useful! Nowadays oil seals with article number 2123-1802120-12 are installed in the RC and axles of the Niva Chevrolet. They are designed for shaft rotation both clockwise and counterclockwise.

Spare parts from the Balakovo plant (Rosteco) are popular. According to reviews from Chevrolet Niva owners, they are characterized by high wear resistance at an affordable price.

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When and how do you need to change the seals of the VAZ 2123 transfer case?

Reference! Parts must be replaced if transmission oil leaks occur at the interface between the drive shafts and the transmission housing.

If this is not done, the transmission will leak. Without lubrication, transfer case parts will quickly fail.

Step-by-step instructions for replacing the oil seal of the Niva Chevrolet

To work, you need to have free access to the bottom of the car. Therefore, replacement of the oil seals will be carried out on an inspection ditch, overpass or lift.

You will need the following tool:

• hexagon 12;
• open-end or socket wrench 24;
• waste container;
• flat screwdriver;
• hammer;
• mandrel;
• syringe for filling transmission oil;
• new self-locking nuts for fastening the flanges.

The algorithm for replacing the Niva Chevrolet transfer case oil seal is as follows:

• drain the oil from the transfer case into the prepared container;
• unscrew the bolts securing the cardan, the drive shaft oil seal of which is to be replaced;
• engage the gear, lock the differential and put the car on the handbrake;
• Unscrew the nut securing the propeller shaft drive flange.
• remove the washer;
• pull the flange off the shaft;
• use a screwdriver to remove the old oil seal;
• clean the seat and apply sealant;
• lubricate the rubber seal of the new oil seal with oil;
• using a mandrel and a hammer, press the part into place;
• install the flange and washer, tighten them with a self-locking nut;
• secure the cardan.

Important! The self-locking design does not allow for reuse of parts. Therefore, the flange nuts must be replaced with new ones.

After completing the work, it is necessary to fill the transfer case with fresh transmission oil.

How to turn on the transfer case on a Niva Chevrolet

The transfer case is controlled using a lever. Features of the device allow you to turn on lowering and locking at the same time. To select a lower gear, you need to pull the lever up. To add a lock you need to pull it to the far left position. To make it easier to navigate, there are special symbols on the handle:

How to use the lowering device correctly. Let's say a car is moving along a dirt road in second or third gear. If you come across a large puddle on the way, it is best to stop and engage a lower gear.

The downshift is only activated when the vehicle comes to a complete stop. This is a feature of the Chevrolet Niva differential. At the same time, it is not necessary to completely stop the car to activate the lock. At the same time, having the lock turned on is not a prerequisite for off-road movement. Usually it is used only if there is a risk of the car hanging diagonally.

But is it possible to turn on the lock not only in diagonal mode? Of course yes. But at the same time, the owner of a Chevrolet Niva may have some problems. Very often the lock jams and it remains on. At the same time, driving like this is not very useful for the car, especially at high speed. There are several basic ways to turn off the lock. To do this, you need to put the car in reverse, accelerate the car a little and try to dislodge the lock. This procedure needs to be done only at speed; this method helps quite often. To check whether the lock is enabled, you need to look at the dashboard, there will be a corresponding icon there.

It is best to move in a lower gear slowly, tightly, to feel the rotation of the wheels. In this case, it is important not to press the gas pedal so that the wheels do not spin, otherwise the car will begin to dig into the mud.

Transfer case device

The Chevrolet Niva transfer case redistributes engine torque between the drive axles and, if necessary, changes the gear ratio and locks the center differential. The parts of this assembly require significant force. Therefore, RK gears and bearings operate in an oil environment.

To prevent oil leakage from the transfer case, oil seals are installed at the joints of the housing and rotating drive shafts. They consist of two parts: a metal body and a rubber cuff, tightened by a spring. The latter ensures sealing of the connection due to the tight fit of the rubber to the shaft.

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Article, size and manufacturers of reinforced cuffs

Initially, oil seals with an outer diameter of 68 and an inner diameter of 35.8 mm were installed in the transfer case. two types:

• 2121-2302052 — one oil seal. A similar part is installed on the drive gear of the front axle;
• 2101-2402052-01 — two oil seals in the Republic of Kazakhstan. The same part is located on the drive gear side of the rear axle.

The installation of different seals is explained by the different directions of rotation of the drive shafts.

Useful! Nowadays oil seals with article number 2123-1802120-12 are installed in the RC and axles of the Niva Chevrolet. They are designed for shaft rotation both clockwise and counterclockwise.

Spare parts from the Balakovo plant (Rosteco) are popular. According to reviews from Chevrolet Niva owners, they are characterized by high wear resistance at an affordable price.

How to turn on the transfer case on a Niva Chevrolet

The transfer case is controlled using a lever. Features of the device allow you to turn on lowering and locking at the same time. To select a lower gear, you need to pull the lever up. To add a lock you need to pull it to the far left position. To make it easier to navigate, there are special symbols on the handle:

How to use the lowering device correctly. Let's say a car is moving along a dirt road in second or third gear. If you come across a large puddle on the way, it is best to stop and engage a lower gear.

The downshift is only activated when the vehicle comes to a complete stop. This is a feature of the Chevrolet Niva differential. At the same time, it is not necessary to completely stop the car to activate the lock. At the same time, having the lock turned on is not a prerequisite for off-road movement. Usually it is used only if there is a risk of the car hanging diagonally.

But is it possible to turn on the lock not only in diagonal mode? Of course yes. But at the same time, the owner of a Chevrolet Niva may have some problems. Very often the lock jams and it remains on. At the same time, driving like this is not very useful for the car, especially at high speed. There are several basic ways to turn off the lock. To do this, you need to put the car in reverse, accelerate the car a little and try to dislodge the lock. This procedure needs to be done only at speed; this method helps quite often. To check whether the lock is enabled, you need to look at the dashboard, there will be a corresponding icon there.

It is best to move in a lower gear slowly, tightly, to feel the rotation of the wheels. In this case, it is important not to press the gas pedal so that the wheels do not spin, otherwise the car will begin to dig into the mud.

When and how do you need to change the seals of the VAZ 2123 transfer case?

Reference! Parts must be replaced if transmission oil leaks occur at the interface between the drive shafts and the transmission housing.

If this is not done, the transmission will leak. Without lubrication, transfer case parts will quickly fail.

Step-by-step instructions for replacing the oil seal of the Niva Chevrolet

To work, you need to have free access to the bottom of the car. Therefore, replacement of the oil seals will be carried out on an inspection ditch, overpass or lift.

You will need the following tool:

• hexagon 12;
• open-end or socket wrench 24;
• waste container;
• flat screwdriver;
• hammer;
• mandrel;
• syringe for filling transmission oil;
• new self-locking nuts for fastening the flanges.

The algorithm for replacing the Niva Chevrolet transfer case oil seal is as follows:

• drain the oil from the transfer case into the prepared container;
• unscrew the bolts securing the cardan, the drive shaft oil seal of which is to be replaced;
• engage the gear, lock the differential and put the car on the handbrake;
• Unscrew the nut securing the propeller shaft drive flange.
• remove the washer;
• pull the flange off the shaft;
• use a screwdriver to remove the old oil seal;
• clean the seat and apply sealant;
• lubricate the rubber seal of the new oil seal with oil;
• using a mandrel and a hammer, press the part into place;
• install the flange and washer, tighten them with a self-locking nut;
• secure the cardan.

Important! The self-locking design does not allow for reuse of parts. Therefore, the flange nuts must be replaced with new ones.

After completing the work, it is necessary to fill the transfer case with fresh transmission oil.

Transfer case oil seal Niva Chevrolet dimensions

Tools:

Parts and consumables:

Note:

We carry out the work on an inspection ditch or overpass.

1. We replace the shaft seals of the front and rear axle drives by disconnecting the cardan shaft flanges from the shaft flanges, as described here. We change the transfer case drive shaft oil seal only after removing the intermediate shaft, as described here. The operations for replacing all three oil seals are the same - we will show them using the example of a rear axle drive shaft oil seal.

2. Drain the transfer case oil as described here.

3. We insert two bolts into the holes in the flange and screw the nuts onto them.

4. Using a 24mm socket, unscrew the flange mounting nut, holding it from turning with a screwdriver or a mounting spatula inserted between the bolts.

Warning:

Self-locking nuts must not be reused; replace them with new ones!

5. We remove the washer.

6. Remove the flange.

7. We pry off the oil seal with a screwdriver.

8. We remove it from the transfer case cover socket.

9. Apply sealant to the seating surface of the housing in the crankcase under the oil seal. Apply Litol-24 lubricant to the working surface of the new oil seal.

10. We press in the oil seal with a piece of pipe or a tool head of a suitable size.

Helpful advice:

You can use an old oil seal as a mandrel.

Warning:

The transfer case shaft seals have the same mounting dimensions, but have oppositely directed oil drainage notches. When installing, follow the direction of shaft rotation indicated on the oil seal.

11. We install the dismantled parts in the reverse order. Apply sealant (threaded) to the threads of the flange nut and tighten the nut with the prescribed torque H*m(kgf*m)96–117.6 (9.8–12.0), using a torque wrench.

We check the oil level in the box as described here and, if necessary, top up.

The article is missing:

Source: Chevrolet niva device, operation, maintenance and repair. Publishing house "Behind the Wheel".

Reg.: 12/06/2004 Threads / Messages: 628 / 51730

Reg.: 12/06/2004 Threads / Messages: 4031 / 23190 From: Moscow Age: 65 Car: 21214M, 2013

When replacing, the oil seal must be placed on sealant. I've written about this many times, try searching for ABRO.

Before you shoot anything, find out what the sound is and where it comes from. I doubt it's a bearing. Maybe some shield is resonating, maybe it’s touching something.

Reg.: 12/06/2004 Threads / Messages: 628 / 51730

Reg.: 12/06/2004 Threads / Messages: 4031 / 23190 From: Moscow Age: 65 Car: 21214M, 2013

Reg.: 12/06/2004 Threads / Messages: 628 / 51730

Thank you. Today I installed oil seal 2121-2302052 on the rear axle flange. I hope this is true? Otherwise, the first time I put 2101-2402052 there from the classics and it drained my oil in a terrible way. By the way, is it really possible to change the oil seals in the front and rear axles on a lift without a torque wrench? One service center told me that the shank nuts are tightened very cleverly. And what if they are not tightened correctly, then you can safely change the gearboxes

What tool is required for the job?

Once the tool is prepared, you can begin to work by performing the following series of actions:

• Lower the parking brake all the way down
• Drain the oil from the rear axle gearbox
• Both axle shafts are removed
• Disconnect the cardan drive from the flange drive gear
• Unscrew the nut that secures the flange
• Let's take it off
• Using a screwdriver, remove the old oil seal
• Lubricate the outer edge of the new oil seal and install it in place using a mandrel of suitable diameter.
• Screw the nut and washer into place

Replacement Tips

Most people, along with replacing the oil seal, also change the transmission oil. If you are one of them, you should find out which lubricant you need to use, since mixing different types of oil is not recommended. This may lead to operational problems. Therefore, if you are not sure what fluid to fill in, flush the system before replacing.

Before replacing the fluid, it is better to drain it; if this is not possible, then raise the side where the replacement will take place higher, this way you can avoid lubricant leakage. In any case, after the work is done, you need to add oil.

To summarize, we can conclude that the problem occurs sooner or later for all owners of this car, since the rear axle of this model is weak. As we can see from the material given above, replacing a part is not such a complicated procedure and can be done independently, and it can be done in an hour.

Source

Required tools for replacement

To work you will need:

1. Keys for "13" and "24".
2. Screwdriver.
3. Hammer.
4. Torque wrench.

First of all, it is necessary to determine the cause of the oil leak.

Before starting work on replacing the oil seal, you should make sure that the cause of the leak is not the breather . To do this, you need to check the amount of oil leakage by moving the breather cap in different directions. You should first check the amount of oil in the bridge and add it. After this, the oil filler plug should also be crimped.

If the work will be carried out on a pit, then the bridge must be hung and placed on supports.

Then you need to start the engine and engage 4th gear . The speedometer reading should be within 100 kilometers per hour. In this position, the machine should work for 10–15 minutes (engine temperature 80 degrees ). 5 drops of oil leak out during the test , then the oil seal must be changed.