What types of gearboxes are there for the VAZ 2106?

Do-it-yourself repair and maintenance of VAZ 2106 gearbox

Starting from the first days of production, the VAZ 2106 was equipped with two types of gearboxes. One type has standard four gears, and the second, improved type has as many as five gears. In terms of their structure, they are very similar to each other and have a large number of identical parts. Therefore, replacing the gearbox on a VAZ 2106 was practically no difficulty.

• Device
• Mechanism maintenance
• Malfunctions
• Conclusion

Device

A four-speed gearbox, just like a five-speed one, has such basic parts as: an input and output shaft, a gear change mechanism, and a gearbox housing. The principle of operation of the input shaft is that it is in continuous motion and rotates a gear with itself, which, in turn, is meshed with the mechanism. This gear is attached to it by welding and cannot be removed separately from this part.

The shaft itself rotates on two supports, in the form of bearings. One of them is located in a special socket on the front of the crankshaft, and the second is in a special hole in the gearbox housing, sealed with an oil seal.

Unlike the primary shaft, the secondary shaft has three support points: the first bearing (located in the place of the primary element), the second is located in the crankcase), and another one, which is located on the rear side of the gearbox.

On the driven shaft there are three gears, which mesh with the gears of the intermediate shaft. Each of them has synchronizers consisting of identical elements.

This device is similar for both gearboxes of the VAZ 2106. But the five-speed gearbox, however, has some differences. The first of these is the rear cover, on which a longer output shaft is mounted.

This shaft, in turn, contains a hub for the fifth gear synchronizers.

The intermediate shaft has also undergone some changes. Now, in addition to three standard gears, it houses a gear block for the fifth position of the gearbox and reverse gear. The mechanism itself was also subject to changes.

Mechanism maintenance

The gearbox of the VAZ 2106 model, like any other, is constantly moving, and the elements of which it consists are constantly heating up. In order to prevent their rapid wear, special gear oil is poured into the gearbox.

The volume of oil required for normal operation of the box is 1.35 liters. Also, this mechanism must be regularly inspected for oil leaks. Checking the fluid level is carried out approximately once a year, or once every 15,000 km.

Lubricant replacement should be carried out at least once every 5 years, or once every 50,000 km.

Also, from time to time it is necessary to monitor passive safety elements, such as: a magnet on the drain plug, and rubber cuffs located on the primary and secondary shafts.

Malfunctions

The main breakdowns of the gearbox mechanism of the VAZ 2106 model primarily include: random switching off of the lever, characteristic noise, and oil leaks. Let's start in order. Spontaneous gear disengagement can occur when there is severe wear on the teeth of the spline ring, gear clutch, retaining rings, spring, or fork rod teeth.

Also, the cause of this malfunction may be loosening of the mounting nuts on the engine mount, or on the box itself. Or, an equally common reason may be dirty clutch levers.

Further, if the transmission of a VAZ 2106 car is humming, then the reasons for the breakdown may be the following. For example, wear of the mounting bearings, or any of the gears. This usually happens when the oil level in the gearbox is low.

If the noise is not constant and appears only when one of the gears is in operation, then the reason can only be one: wear of the synchronizers or gears. If the noise does not go away when any gear is engaged, the cause may be a loose connection between the crankcase and the gearbox, or wear of the locking ring.

Well, liquid leakage can only happen in two cases: weak fastening of the filler or drain plug, as well as defects in their design that affect the tightness of the system.

Conclusion

The VAZ 2106 gearbox, in its structure, is practically no different. Therefore, breakdowns and the method for eliminating them will be the same. But, there is a big difference in operating a car with a 5-speed and a 4-speed gearbox. With 5th gear, the ride becomes more comfortable.

Source: https://PortalVAZ.ru/remont-i-obsluzhivanie-kpp-vaz-2106-svoimi-rukami/

Difficulty switching

The reasons for difficult gear shifting may be severe contamination of the lever linkage or jamming of the sliders.

In order to determine the cause of this malfunction, you need to take the shift lever housing and check if there is any jamming when the lever moves. If there is one, you need to establish the cause and eliminate it.

If the lever in the body moves without much effort, then the reason is in the sliders. After removing them from the gearbox housing, you need to carefully inspect them. Usually, in places where the sliders jam, marks remain in the form of abrasions and scratches.

Then you need to inspect the seats of the slides for the presence of particles that cause jamming. Alternatively, there may be a slight bend in the slider itself. In this case, the slider is replaced.

The VAZ is equipped with three classic types of transmissions, which differ from each other in gear ratios.

• Gearbox 2101. Installed on models 2101, 2103, 21011, 21061. At the moment it is extremely difficult to find.
• Gearbox 2106. Installed on VAZ-2106 and 2121. Differs in smaller gear ratios compared to the previous one.
• Gearbox 2105. It was equipped with VAZ-2105, 2107 and 2104. The gear ratio characteristics are in the middle position. Unlike the first two transmissions, it also has a 5th gear. Instead, gearboxes 2107 and 21074 are currently being produced.

There are also four sport rows (1–4R). We repair gearboxes for VAZ of any of the listed types.

If we talk separately about UAZ (the era before the Patriot), then there are two types of transmissions for them: the old model and the new one (since 1989). They both have higher gear ratios. For example, in third gear it is 1.55–1.58 for UAZ. For the three checkpoints listed above, it is 1.36–1.49.

The UAZ Patriot is equipped with a special Dymos transmission - in general, like classic gearboxes, it is quite undemanding and reliable.

Typical gearbox failures in a VAZ

Transmissions in the domestic auto industry are characterized by the same breakdowns as popular foreign cars. However, there are also some nuances. We have been repairing gearboxes at VAZ for several years and therefore can show you a list of typical faults.

• Wear of the input shaft bearings. A symptom of such a breakdown may be a crackling or clicking noise at idle speed of the engine, or in all gears with an increase in noise volume at high speeds.
• Synchronizer wear. A sign of a breakdown is a crunching sound when changing gears.
• Gear wear. You can tell by the fact that the transmission is “crashing”. In addition to the gears, in this case it will be necessary to change the clutch and synchronizer.
• Failure of the selector spring. This leads to the fact that the handle “dangles” and cannot lock in the center, the gears get confused.

There are also some nuances for different models. For example, in VAZ-2108, 2109, 2113, 2114 and 2115 the bearing in fifth gear often breaks. This happens especially quickly if the car owner does not monitor the oil level.

And in Kalina, Priora, as well as VAZ-2110, 2111 and 2112, the following often happens:

• Shaft break. It can be indicated by such signs as difficulty shifting gears (especially first and second), as well as loud noise when driving.
• Satellite rupture. This can be indicated by an oil leak and a lack of acceleration of the car when changing gears, popping noises and jolts. The satellite can pierce the housing.

It is impossible to fix all of the listed breakdowns on your own, so you should contact a car service center where they will replace the clutch or any other worn parts of the unit. In this case, it is necessary to promptly contact the specialists, since the transmission is perhaps the second most important element of the car. The controllability of the machine depends on its performance, and failure at a crucial moment can lead to disastrous results.

Gearbox for VAZ 2106

The Tolyatti “six”, famous throughout the Eurasian continent, is equipped with two types of gearboxes: four-speed and five-speed.

Since the second option is, in fact, a modified version of the first, they are not only largely identical, but also interchangeable. The installation of 5 gearboxes on the VAZ 2106 has become quite widespread, especially in the last years of its production.

Therefore, in this article, we will focus on this type of transmission, its design and the features of replacement in case of failure.

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Design of gearbox 2106

The main structural elements of a five-speed transmission are the primary (item 11), secondary (item 27), intermediate (item 5) shafts, gear shift mechanism and crankcase (item 16). The shafts are installed in bearings: the primary is in two ball types, and the secondary is in three.

On the secondary shaft there are freely located gears that are constantly in mesh: first (pos. 28), second (pos. 25) and third (pos. 24) gears. The sliding clutch hub (pos. 21) for the third and fourth gear synchronizer is located on three splines of the secondary shaft. The fastening of the hub (item 26) of the first and second gears is similar.

The synchronizers for all gears are structurally identical. The main difference between the 5th gearbox on the VAZ 2106 and its four-speed ancestor is the following elements:

• Changed back cover.
• An extended secondary shaft on which the fifth gear driven gear and the synchronizer hub are installed (item 47).
• Modified intermediate shaft (pos. 55) with gear block (pos. 46) for fifth and reverse gears.
• Modified gear shift mechanism.

Replacing a gearbox on a VAZ

The process of replacing such a unit, which is the dismantling and installation of a gearbox, is carried out on a car raised with a special lift or placed on an inspection pit. First, disconnect the “negative” terminal of the battery and uncouple the gearbox and driveline. We remove the latter from the vehicle. We dismantle the intake elbow of the muffler. De-energize the reverse switch by disconnecting the terminals.

https://www.youtube.com/watch?v=RgTotEzRCy0

We clear the area of ​​proposed work in the car interior from decorative covers, mats (secured with four self-tapping screws) and foam rubber seals.

Next we carry out the activities in the following order:

a) Push the gear shift knob down, then use a thin screwdriver to remove the locking sleeve and remove the handle.

b) Insert a pry bar (mounting blade) into the gap between the partition of the engine compartment and the engine and bend the eye washer of the bolt securing the (upper) clutch housing. c) Unscrew the bolt using a spanner (head) to “19”.

d) Using a socket with a universal joint at “13”, unscrew the upper mounting bolts (2 pieces) of the starter to the clutch housing.e) Having attached the extension, unscrew the starter mounting bolt (from below). f) Remove the clutch housing cover by unscrewing the four bolts using a “10” wrench.

g) To disconnect the flexible shaft of the speedometer and the drive housing, unscrew the fastening nut. For safety reasons, we fix the lower part of the gearbox housing with a special stop.

h) Having unscrewed the nuts securing the cross member (2 pieces), move the gearbox back until it comes out of the guide bushings and remove it from the car. i) Disconnect the clutch housing.

Further replacement of the gearbox with a VAZ 2106 includes repairing the removed (or preparing a new) transmission and installing it in its original place in the reverse order to the above. It is recommended to begin installation operations by lubricating the splined end of the input shaft with CV joint grease-4 (a thin layer).

Source: https://VipWash.ru/korobka-peredach/korobka-peredach-na-vaz-2106

Cost of express replacement of VAZ gearbox

Warranty 1 year or 60,000 km. mileage for work and VAZ gearboxes.

Gearbox new VAZ 2104 VAZ 2105 VAZ 2106 VAZ 2107

/for all VAZ classic models/

Prices for additional work when repairing a VAZ classic manual gearbox:

Comprehensive troubleshooting (disassembly)

Replacing the clutch (as a separate job)

Removing and installing a manual gearbox as a separate job - without repair

Replacing the clutch with the gearbox removed

Gearbox diagram VAZ 2104 - VAZ 2107 (for all VAZ classic models)

gearbox shafts and gears

gear selector forks

Most car owners of classic VAZ (Lada) models complain about the characteristic noise produced by the bearing bearings installed on the gearbox shafts. An example of disassembly and assembly of a VAZ 2104 gearbox (replacing bearings and seals):

Work on the VAZ 2107 gearbox (replacement of bearings, oil seals, gear clutch and drive gear):

We are ready to help you with VAZ gearbox repairs any day, seven days a week. From 10-00 to 20-00. Call the numbers listed in our contacts and make an appointment for repairs right now! Specify a time that is convenient for you to repair the gearbox. And it is during this time that a place will be made available for you and a leading technician (who will carry out your repair or replacement of the VAZ gearbox).

Photos of disassembling the VAZ 2105 gearbox (replacing bearings and input shaft of the manual transmission):

A specialized workshop in Moscow repairs the gearbox of VAZ 2104 and later Lada models that have a manual transmission. Although the mechanical unit is considered the most reliable among car enthusiasts, it also periodically fails and requires urgent restoration. Repair of VAZ 2104 manual transmission is carried out by experienced specialists with the installation of new or used components, low prices and excellent quality are guaranteed.

List of repair services for manual transmission VAZ 2104 and other models The VAZ 2104 gearbox on later models has been constantly improved, however, each AvtoVAZ product has its own shortcomings and typical malfunctions familiar to most owners. Our employees have been repairing VAZ 2104 gearboxes and other models of Russian cars for many years, so we know all the typical breakdowns and their symptoms. If you need urgent repair of a VAZ 2104 gearbox, we offer a full range of services:

• Transmission diagnostics. To identify the cause of the problem, the unit is removed, partially or completely disassembled and reassembled in the presence of the client. The cost of removal and installation is 2,000 rubles, the price of a complete overhaul is 4,000 rubles, with spare parts paid separately.
• Detection of faulty components. In the presence of the client, the technician will determine the degree of wear of the components and recommend repair or replacement based on the diagnostic results. A list of spare parts that need to be purchased is compiled.
• Replacement of components and assembly. This work will not take much time; as a rule, the car owner can pick up the restored car on the same day. Repair of VAZ 2104 and other models is carried out using professional equipment and tools.
• Installation and adjustment of gearbox. The technician will check its functionality in all modes, after which the unit is ready for operation.

If you are not satisfied with the wait or the unit is very worn out, you can buy a VAZ 2104 gearbox or later models. We offer express replacement of mechanics in a short time, after which the car will be ready for long-term use again. Express replacement is carried out if the cost of spare parts exceeds the installation of a new box. Inexpensive refurbished units are used for replacement; they are designed for long-term operation.

Typical breakdowns and causes of their occurrence

Gearbox VAZ 2106 device and maintenance

The era of the Soviet Union lasted more than one decade. The automotive industry of a huge state sought to keep up with the world leaders in the automobile market, and the result of this desire was the iconic VAZ 2106 car. More than one generation of people considered this car the best.

Indeed, VAZ designers created a car whose feature was reliability contained in simplicity. The gearbox was one of the main components, characterized by reliability and high quality. One of the secrets of the excellent performance of the VAZ 2106 gearbox was high-quality gear oil.

Purpose of the gearbox

The VAZ 2106 has a manual four or five-speed gearbox. This device in a car is necessary to transmit and change the magnitude and direction of torque from the engine to the drive wheels. Depending on the weight of the vehicle, engine power and operating conditions, the gear ratios in the gearbox are adjusted properly. For example, in a five-speed gearbox, first gear is shorter, which allows driving in difficult conditions.

Design Features

The five-speed gearbox of the VAZ 2106 is based on a four-speed gearbox, which ensures the interchangeability of parts. The unit is three-shaft and consists of the main components:

• Carter;
• Back cover;
• Bottom cover;
• Intermediate, primary and secondary shafts;
• Gears, couplings.

The VAZ 2106 car has good dynamic and speed characteristics thanks to a high-quality and simple gearbox. All gears, except the reverse mechanism, are helical and have constant mesh.

This device allows the gears to transmit large torques with their small design. The reverse gears are spur gears, which prevents the car from developing high speed when moving backwards.

This is explained by the weight and size of the gears and the maximum possible transmitted torque.

Drive gear

The forward gears are engaged thanks to clutches with inertial synchronizers. The direct switching mechanism consists of forks with rods. After the gear is engaged, fixation occurs thanks to spring-loaded balls that fit into the holes of the rods.

VAZ designers also provided for the use of locking blocks as protection against engaging two gears at the same time. To reverse, engage reverse gear. In this case, the gear in the gearbox will move along its axis into engagement with the teeth of the gears of the intermediate and secondary shafts.

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Structurally, the gears of this transmission are located inside the rear crankcase cover. In the 5-speed gearbox, the elements of the last gear are also located there.

To replace the lubricant in the box (oil), there are special plugs in the housing that have a self-sealing conical thread. Please note that all characteristics of metal elements are selected taking into account the fact that the driver fills the gearbox with high-quality oil.

Gearbox servicing

The service life of even the most reliable mechanisms depends on their correct operation and the quality of the oil used. Therefore, do not forget that high-quality oil is the key to long-term operation of the gearbox. During improper operation, rotating metal elements in contact with each other wear out.

As a result of this, metal shavings get into the oil and, accordingly, are distributed throughout all elements of the box, further increasing the wear of gears and other parts. However, the gearbox has methods of passive protection against such harmful effects. For example, the drain plug in the bottom cap has a magnet that catches metal shavings. The primary and secondary shafts are sealed at the ends with rubber cuffs.

The volume of oil that needs to be poured into the box is 1.35 liters. Long-term operation of the gearbox is possible with regular visual inspection to timely eliminate oil leaks, if any. In addition, it is necessary to measure the oil level in the box. It is advisable to carry out this procedure once a year or after every fifteen thousand kilometers.

The oil must be changed every five years or after every fifty thousand kilometers. If it is necessary to repair the gearbox of a VAZ 2106 car, it is necessary to completely drain the oil, after which this device can begin to be disassembled.

Source: https://autodont.ru/kpp/korobka-peredach-v-vaz-2106

Disassembly and assembly of the VAZ 2101 gearbox

VAZ 2101 gearbox diagram: 1 – reverse fork; 2 – tension spring of the gear shift lever; 3 – guide cup of the lever; 4 – ball joint of the lever; 5 – gear shift lever; 6 – spherical washer; 7 – lever spring; 8 – retaining ring; 9 – damper locking sleeve; 10 – elastic damper bushings; 11 – damper spacer bushing; 12 – damper thrust pad; 13 – gear shift lever rod; 14 – fork for selecting third and fourth gears; 15 – fork for selecting first and second gears; 16 – fork rod for first and second gears; 17 – fork rod for selecting third and fourth gears; 18 – reverse fork rod; 19 – blocking crackers; 20 – clamp cover; 21 – bushing; 22 – clamp spring; 23 – locking ball; 24 – rear cover of the gearbox; 25 – reverse light switch VAZ 2101; 26 – remote bushing for the reverse fork rod.

Primary shaft VAZ 2101 gearbox

The device of the VAZ 2101 input shaft: 1 – retaining ring; 2 – spring washer; 3 – bearing; 4 – input shaft; 5 – synchronizer spring; 6 – synchronizer blocking ring; 7 – retaining ring; 8 – bearing.

Secondary shaft of the VAZ 2101 gearbox

The device of the secondary shaft of the VAZ 2101: 1 – retaining ring; 2 – spring washer; 3 – synchronizer hub; 4 – synchronizer clutch; 5 – retaining ring; 6 – synchronizer blocking ring; 7 – synchronizer spring; 8 – washer; 9 – third gear gear; 10 – secondary shaft; 11 – 2nd gear gear; 12 – washer; 13 – synchronizer spring; 14 – blocking ring; 15 – retaining ring; 16 – synchronizer hub; 17 – synchronizer clutch; 18 – retaining ring; 19 – synchronizer blocking ring; 20 – synchronizer spring; 21 – washer; 22 – 1st gear gear; 23 – bushing of the 1st gear gear; 24 – bearing; 25 – reverse gears; 26 – spring washer; 27 – retaining ring; 28 – speedometer drive gear; 29 – rear bearing; 30 – oil seal; 31 – elastic coupling flange; 32 – nut; 33 – seal; 34 – centering ring; 35 – retaining ring.

Backstage VAZ 2101

Gearbox VAZ 2107 5 mortar device - Do-it-yourself car repair

RepairDo-it-yourself VAZ 2107 repair

The VAZ 2107 entered the market in 1982 and was successfully produced until 2012. This VAZ 2107 model was equipped with a five-speed gearbox, which has five forward speeds and one reverse.

Interesting fact! From 2006 to the present, the VAZ 2107 has been manufactured in Egypt at the Lada Egypt plant.

The design and principles of operation of the VAZ 2017 gearbox

One of the main units in the structure of a car is the gearbox or transmission. The principle of operation of a five-speed gearbox is to change the engine torque and transmit speed to the wheels. Basically, the repair of this complex device is carried out by specialists, but let's try to figure out this process ourselves.

https://www.youtube.com/watch?v=hqcrKAMxH0k

First, you need to find out what malfunctions exist and how to identify them based on external signs. One of the first is that the VAZ 2107 gears are difficult to engage or switch off spontaneously. Also characteristic of malfunctions is noise or oil leakage.

The procedure for removing the VAZ 2107 gearbox

You need to place the car on a viewing hole or use a jack to raise the rear axle. Ask your friends for help, as this process is very difficult and time-consuming.

Necessary tool

For this work you will need the following tools: wrenches No. 10, 13 and 19, cardan joints with an extension, chisel, hammer, jack, pliers, a container for used oil, water to wash the bolts from dirt.

Removal process

Now let's look at how to remove the gearbox on a VAZ 2107 step by step.

1. Disconnect the negative terminal on the battery and remove the radio panel.
2. We move the locking type bushing down and remove it from the rod cavity.
3. Pull the lever rod out of the gearbox lever.
4. Unclench the petals of the upper bushing and remove it from the lever, then remove the lower rubber and locking bushings.
5. Then we unscrew the four screws on the floor that hold the lid, which we remove together with the seal.
6. After unscrewing two more bolts, remove the handbrake cover, then unscrew all the bolts on the floor and remove the fastening of the slide and the metal sill plates.
7. The next step is to remove the hoses to allow warm air to enter the air filter and the exhaust pipe of the gas exhaust system.
8. Having previously unscrewed all the bolts, we move the starter forward. To repair the gearbox housing, through the plug, drain all the oil that is there
9. Next, remove the muffler and disconnect the cardan coupling from the box flange.
10. On the right side of the box there is a reverse switch, which should also be turned off.
11. Then loosen the nut and disconnect the speedometer cable from the gearbox.
12. We remove the slave cylinder, but leave the hose on it.
13. After unscrewing a few more bolts, remove the cover on the clutch housing, then remove the cardan transmission.
14. Having installed the support under the gearbox, unscrew the four bolts that secure the crankcase to the cylinder block, move it aside and remove it from the guide bushings.
15. By moving the gearbox back, the input shaft is freed from the driven disk hub.
16. By disconnecting all the fastenings of the VAZ 2107 gearbox, it can be removed.

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Note! The clutch thrust flange must not be used to support the shaft.

How to repair a VAZ 2107 gearbox, disassembly and diagnostics

Before inspection, you need to clean all parts with a brush, then rinse and blow with air. Blow out the bearings especially carefully with compressed air; there should be no signs of damage or wear on them, and there should be no cracks on the crankcase. Minor damage can be carefully smoothed out with a file, but severely worn damage must be replaced. You need to check the oil drain hole and clean it if necessary.

Interesting fact! When checking the seals, the permissible wear on the working edges is no more than one millimeter. When checking the gears, be sure to carefully inspect the ends of the teeth on the synchronizer rims. They should not be subject to excessive wear. But the bearing balls must be in impeccable condition. Also check the shafts, rods and forks for damage. Condition of hubs, couplings and synchronizer rings.

Assembly and installation of the VAZ 2107 gearbox

To assemble all the parts back, you need to place the secondary shaft in the housing, install the bearing and secure the bracket. The input shaft, inside of which there are retaining rings and a needle bearing, is also installed in the housing.

Next, we correctly place the gear forks, after the rod of the first and second we lay a long cracker, then the fork of the third and fourth gears and install a short cracker. It's time for the intermediate shaft.

The middle bearing bushing is placed inside the box housing. The bearings must fit tightly.

Remember! After installing each subsequent part, you need to check whether the primary and secondary shafts rotate well.

Source: https://avto-voshod.ru/ekspluatatsiya/kpp-vaz-2107-5-stupka-ustrojstvo.html

Replacing a manual transmission with a used VAZ 2105, 2106, 2106

A rational solution is to replace the damaged box with a serviceable one, even if it has been used. The range of offers of this type is extremely wide. Often, replacement services are offered by private craftsmen. buy a used gearbox for a VAZ 2104, 2107 5-mortar from them . Should you trust such specialists? If the person is one of your own, proven, then, of course, there is no reason to worry. If you are looking for a specialist for the first time, it is more rational to give preference to specialized workshops rather than private owners.

Replacing the box at a service station is carried out quickly, with a guarantee of quality. Moreover, both the unit itself and the car mechanic work performed are at a decent level. As for the cost of replacement, cooperation with private owners is not always cheaper. The workshop's services benefit from the long-term, maintenance-free operation of the replaced transmission unit.

Box repair: can you do it yourself?

Repairing the five-speed gearbox of a VAZ 2107 and other models is technically quite complex. Especially if it cannot be done without dismantling or rebuilding the transmission unit. If you do not have special knowledge, experience in car mechanics, or special tools, it is better not to experiment with independent work. Eliminating the consequences of incompetent repairs can be quite expensive. Overpayments are not only possible, but also very likely.

Professional repair of the classic VAZ 2105, 2106 (5-mortar) gearbox will reduce financial risks. The service can be ordered in our workshop on the most favorable terms. We repair boxes of all models of Zhiguli, we guarantee efficiency and quality of work performed. Additionally, at the station you can get free advice on how to prevent problems with checkpoints in the future.

Several features of repairing a VAZ five-speed gearbox

Professional repair of a VAZ 5-speed gearbox , like any other auto mechanic procedure, has its own characteristics. They are determined, first of all, by the specificity and complexity of the faults. Their number also plays a role. There are often cases when it is more rational to buy a used gearbox to replace the original unit than to bother with repairs.

If you want to restore a transmission unit, it would be a good idea to understand the specifics of providing transmission repair services.

What is bulkheading and how is it done?

Repair of the VAZ 2105, 2107 and other models gearboxes can be routine or major. The latter involves a complete overhaul of the unit. Professional specialists always conduct detailed diagnostics of the transmission unit before overhaul. The data obtained allow us to get a clear idea of ​​the physical and technical properties of the elements of the unit.

A major overhaul of a VAZ 2107 manual transmission may have different costs, and the same applies to the restoration of gearboxes of other models. The price is determined by the complexity of the work performed, the quantity, and the specifics of the faults.

Bulkheading requires compliance with certain regulations. When performing work, our workshop specialists strictly follow the technical repair diagrams. The station is equipped with a special unit for carrying out routine maintenance. The availability of specialized equipment and the competence of the personnel make it possible to guarantee that the overhaul is performed in accordance with the technical recommendations of the gearbox manufacturer.

A few nuances of current repairs

If there is a problem with the transmission unit, do not rush to decide to replace it. to buy a used VAZ 2107 5st gearbox . We recommend that you first contact a workshop to diagnose the unit and identify the causes of malfunctions in the box. It is quite possible that the damage will not be so serious and a simple repair will be enough.

Repair work is carried out, as in the case of overhauling the transmission unit, in strict accordance with technical regulations. Worn parts are replaced with new ones. Restored elements are brought back into working condition. The correct operation of the unit as a whole is checked.

When is maintenance necessary? You should contact a workshop if you notice deviations in the operation of the transmission unit that do not radically affect safety or driving comfort. Moreover, there is no point in delaying repairs. The longer a gearbox with defects operates under standard (and even more so under extreme) conditions, the higher the risk of worsening problems and, accordingly, increasing the cost of restoration work.

Communities › VAZ: Repair and Modification › Blog › VAZ classic gearbox repair for beginners

Hello everyone, gentlemen. What prompted me to write this post is that repairing transmissions on VAZ cars of the classic family is a very common thing. And although the gearbox is as simple as three kopecks in its design, there is no specific guide for dummies on how to repair it on the Internet. There are a lot of resources on which disassembly and reassembly of the gearbox are written, but when it comes to defective repairs, a masterpiece inscription is written everywhere - replace faulty parts. How can an uninitiated person understand which parts are faulty and which are not? Apparently there is a dead end here, and it is not clear what is happening and why, that is why I decided to make this post. Let's start with the fact that the main gearbox faults can be divided into several groups. 1. Oil leaks. 2. Failure to engage gears/crunch when shifting/crashing under load/crashing when starting off. 3. Rumble during operation / hum at idle / hum and knocking at idle / hum in a certain gear. 4. Other rare malfunctions. Let's go, 1 Oil leak. Everything is very simple here, leaks occur when the fastening of the detachable parts of the gearbox is loosened, as well as when cracks appear in parts of the gearbox. By the way, I don’t consider leaks from the seals, because in all the instructions at the end there is a footnote stating that when disassembling the gearbox, it is MANDATORY to replace the seals of the primary and secondary shafts, as well as gaskets, during reassembly, and there are no exceptions here. Damage to the input shaft seal is not as common as damage to the secondary shaft seal. This is due to the peculiarities of its protection by the rear flange, under which abrasive debris from the roads inevitably falls, gradually destroying it. I recommend replacing the input shaft oil seal together with the release guide; this operation will significantly save your time, with a slight increase in the cost of the part. The rear oil seal is replaced separately, on a previously cleaned surface; I also recommend lubricating the outer lock of the oil seal (its metal cage) with sealant, since when installing or removing the oil seal, if you put marks on the seating surface, the oil will begin to leak through them over time. And your box will freeze again. Again, I remind you that after installing the oil seal, when threading the shaft, the working edge of the oil seal MUST be wetted with engine oil. (this applies to any seals, not just gearboxes). Looks like we've sorted out the seals. Regarding the assembly of detachable joints, I always go over all surfaces before assembly with Scotchbrite (such an abrasive cloth is akin to a sponge with 1500-grit sandpaper); it removes all the old gasket/sealant, and prepares the surface with a fine scratch. We degrease and apply a thin layer of sealant (0.1mm), put a gasket, and another thin layer of sealant on it. Air dry for 10 minutes. And we tighten it, you only have one try, otherwise everything will be a new one with a new gasket. To avoid bugs, I recommend pre-assembling the gearbox without gaskets in order to check the gearbox for any jamming. it should rotate (perhaps not very easily) but with the help of a hand on the helicopter on the shank. If there is leakage from the reverse sensor connector, replace the copper washer on it. If replacement is not possible, anneal the old copper washer with a torch and cool in water, this will restore its softness. As a special case, we can consider leaks through the threaded connections of the pan; this is a consequence of damage to the pan gasket. There have also been a couple of cases where the rear gearbox cover was damaged by bolts that had come loose from the 5th gear fork. In one case, a piece was knocked out of the back cover, such damage is impossible not to notice, and the second time the bolt made a crack through which oil leaked. In this case, it is cheaper to seal the lid with argon. After repair, such a cover works no worse than a new one. We seem to have sorted out the oil leaks, now we need to sort out the gears. So, there is a little trick that will help you like aspirin before you go deep into the checkpoint. When leaving the 5th gear, first try to tighten the shank nut of the gearbox. To do this, throw off the cardan with the donut, you will see a helicopter and a thick washer sticking out in the middle of it under the locking ring and nut. For these cases, I just bought a long 30mm socket and a large wrench. Basically, if you pull until the hell out of it, you won’t break the hardened shaft anyway, and if it’s untwisted, it will go quite easily. in half the cases, after this operation, the 5th gear returned to the box, but you shouldn’t be too happy about this, which means that the 5th reverse gear fork has already received significant damage and soon you will need to dismantle the gearbox. But let’s say it didn’t help and the checkpoint has already been removed, how can we understand what and why. First fork. The trace of contact with the coupling is clearly visible on them; it should be extremely shallow, because the fork is covered with wear-resistant material, and if it is damaged, the fork becomes unusable. In general, if the contact mark in total exceeds 45 degrees (depth more than 0.2 mm), then the plug must be replaced.