Automakers around the world do not stand still in terms of technological progress. Every year, cars appear that surprise with their innovations in equipment and characteristics. AvtoVAZ does not produce high-tech cars, but from time to time the manufacturer pleases with updates to certain components. For example, the VAZ 2170, better known as the Lada Priora, is now equipped with an updated manual transmission. Its main feature is the main gear and synchronization with the differential.
Characteristics of the Lada Priora gearbox
Structurally, the Lada Priora gearbox consists of three main components:
- clutch housing;
- gearbox housing;
- rear cover of the gearbox housing.
The units are connected to each other using bolt clamps, supplemented by the application of sealant. There is a special magnet in the tray that catches metal elements that are a product of the natural development of the resource. The input shaft is a unit with a set of gears that continuously mesh with the driven gears at all available speeds. The secondary shaft is hollow and is used to supply transmission oil. It contains all the driven gears of the forward speeds.
The shafts use two types of bearings: at the back - ball type, at the front - with rollers. The oil sump is designed to redirect the flow of oil into the hollow part of the shaft. The differential design is two-satellite. The main gear gear is attached to the flange of its box.
A breather is used to communicate with the external atmospheric environment; it is located in the upper part of the gearbox.
All the details of the box - what's inside
The five-speed gearbox of the Lada Priora is connected to the central gear and differential. The Priora gearbox consists of shafts: the input shaft is made as a block of central gears. The gears of the forward speed modes have oblique teeth, the reverse gears have straight teeth. They contact the gears of the secondary shaft. There is an oil sump at the bottom of the secondary shaft in the bearing area. It is responsible for distributing the oil emulsion and supplying it to the secondary shaft, and then to the driven gears of all gears. The design of the gearbox includes a gear synchronizer. Synchronizers for 3rd, 4th, 5th gears have a similar design. The only difference is the blocking circles. The parts of 1st and 2nd gears have a different design. They have two cone-shaped friction areas installed, which relieve the load, distributing it evenly among themselves.
There is a magnet in the core of the clutch housing. It attracts metal waste and shavings and prevents its penetration into the system. A mandatory element of the box is the drive. It should be treated with special care. In addition to the listed parts of the box, it contains a jet rod, which is fixed at one end to the motor. Thanks to this, independent gear changes while driving are excluded.
The traction-controlled transmission has a three-arm handrail that activates the selected speed mode. A cable-operated transmission has a cable that activates the desired gear.
Control Features
Control is carried out through a lever and a knob for switching between speeds - a rocker with a cover. To prevent accidental engagement and disengagement of gears while driving, a reaction-type traction rod is integrated into the mechanism. At one end it is connected to the engine, and at the other to the base of the switch lever. Some drivers install a short-throw rocker as an upgrade for greater sensitivity. On one side of the rod, a switch is fixed inside, which affects the mechanism; it is a separate unit and is attached to the pallet. There are three axes fixed in the device casing:
- The first is used to secure the speed selection and switching switch, as well as two locking brackets.
- The second goes through the slots in the brackets and prevents them from turning.
- The third secures the reverse gear fork.
The gearbox has a special solenoid that blocks spontaneous engagement of reverse speed. Its middle part has a protrusion and does not allow the locking brackets to move along the axes to the reverse gear position. The solenoid switch is located on the gear shift handle. When the ring rises, the electrical circuit is closed and the solenoid receives supply voltage. The protruding middle part slides inward, allowing you to engage reverse gear. If the ring is damaged or the electrical circuit is broken, reverse gear cannot be engaged.
To be able to get to the nearest car service center, you need to remove the solenoid from the gearbox housing and install a plug in its place that secures the gearshift fork. In this case, there is a risk of engaging reverse gear instead of first and vice versa, so you should be careful.
After troubleshooting, it is necessary to add oil to the crankcase, as some of it will leak out when the solenoid is removed.
Subsequence:
- Using a size 8 wrench, unscrew the nut of the drive housing. Disconnect the cable from the clutch pedal retainer.
- Remove the compensation system box and ring from the pedal. To avoid damage, carefully pick out the box with a knife.
- Remove the plastic sleeve from the pin. If there are signs of damage, replace with a new one. Lithol treatment is required before installation.
- Remove the drive seal from the hole in the front of the shield.
- Remove the tip, first dragging it in the direction of movement of the car.
- Unscrew the cable end fixing nut. It is screwed onto a bracket, which is attached to the transmission with a 17-point head.
- After removing the tip, pull out the cable.
- Unfasten the latch and remove the speed sensor chip.
- Unscrew the fixing screws of the pallet flap and remove it.
- Secure the engine with a reliable support.
- Unscrew the fixing bolt of the rear engine mount to the bracket.
- Remove the limiter on the rear surface of the motor.
- Unscrew the bolts that secure the motor to the body surface.
- Remove the support from the rear side.
- Remove the limit rollers from below.
- Unscrew the motor bracket clamps on the rear surface of the transmission housing.
- Using a size 8 wrench, unscrew the top screw and remove the bracket.
- Unscrew the screw and remove the speed sensor chip.
- We unscrew the bolt securing the gearbox hinge box.
- Remove the click rod from the hinge base.
- Loosen the torque clamps.
- Remove the designer hubcaps from the front wheelbase.
- Using a knife to pick up the edge, remove the hub protective lining.
- Align the hub nuts.
- Loosen the screws securing the wheelbase. Using a 30mm socket, unscrew the hub bolt.
- When you unscrew the screws that secure the wheelbase, the car is positioned on the platform with all wheels.
- To prevent the vehicle from moving, tighten the handbrake and install supports under the rear wheels.
- Unscrew the ball joint clamps and remove the maneuvering knuckles.
- Remove the shank from the hub.
- After removing the left drive, put a plug in its place.
- Press out the drive on the right side. Remove it.
- Place a support under the transmission.
- Remove the screws securing the transmission to the engine.
- Move the gearbox as far back as possible, remove the support, holding it.
The transmission of AvtoVAZ models has the advantage of simplicity of design and the ability to install it yourself if you have the necessary skills.
Malfunctions of the Lada Priora gearbox and their elimination
The manual transmission of the Lada Priora is far from ideal and has a number of characteristic faults. Problems common to all manual transmissions also arise. Conventionally, they can be divided into breakdowns in the gearbox and in the gear shift mechanism. The first include:
- damage to synchronizer couplings and their splined connections;
- gear wear;
- oil leakage and low level in the crankcase;
- development of the service life of bearings on shafts (primary, intermediate and secondary);
- deformation and damage to oil seals;
- weak connections.
Failures in the switch mechanism:
- defective drive rod - damaged, weakened, loose, soured and worn out;
- the rod is worn out, there is play in the mechanisms;
- deformation or wear of the locking mechanism;
- The fork is worn out.
The reasons why certain malfunctions of the gearbox and switching mechanism most often occur:
- operating rules were violated - insufficient oil level, poor-quality lubricant, driving with a faulty clutch;
- low quality spare parts;
- the service life of the parts has been exhausted (natural wear);
- improper maintenance and repairs performed by unqualified personnel.
A malfunction in the gearbox can be determined by a number of external factors:
the gearbox is noisy;
- gears are difficult to engage;
- Spontaneous gear shifting (gears are thrown out)
- gears do not engage or are engaged with great difficulty and extraneous sounds, the car jerks while driving;
- The gearbox is noisy, when you press the clutch pedal the noise disappears;
- extraneous sounds when shifting gears - grinding, crunching, squealing, rattling, creaking, vibration;
- oil leak.
When carrying out diagnostics, it should be taken into account that the same symptom may indicate several malfunctions at the same time. Determining the exact cause is carried out only after removing and disassembling the gearbox. Carrying out repair work and identifying worn or damaged parts requires qualifications and experience.
Many malfunctions can occur due to clutch problems, since these two devices are inextricably linked in the gear shift mechanism. For this reason, diagnosing breakdowns requires appropriate qualifications, as well as repairing, troubleshooting and installing new parts.
There is only one way to troubleshoot: disassemble the unit and replace damaged parts, as well as adjust the gaps.
Disadvantages, breakdowns and problems of the Lada 2110 box
This manual transmission is famous for its low reliability, unclear shifts and howling in operation.
Most complaints about noise and crackling when switching due to wear of synchronizers
In second place are endless oil leaks from various seals, gaskets or breather
Next comes the wear of the plastic bushings in the manual transmission and failure to engage or knock out the gear.
Closer to 100,000 km, gears and bearings are already exhausting their service life
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Gearbox for Lada Priora
29.11.2017
The Lada Priora car attracts many potential buyers with its sophisticated appearance. The car can be equipped with a 16-valve power unit (1.6 liters). Initially, a 5-speed manual transmission was installed; since 2014, automatic transmission has become available. This car has front-wheel drive. In basic configurations there is an 8-valve 1.6-liter power unit (VAZ 21114). The car produces 87 horsepower. Fuel consumption is optimal in all cycles.
Transmission characteristics
The 5-speed gearbox on the Priora model is combined with a differential and final drive. In addition to this, the gearbox on the Priora has a primary shaft, which is made in the form of a block of drive gears. They interact with the driven gears of the secondary shaft. An oil sump is installed under the front bearing of the secondary shaft. Also, the synchronizer belongs to the gearbox system. A special magnet is installed in the clutch housing socket, which retains metal debris, preventing it from going further into the system.
It should be noted that the Lada Priora model has a cable gearbox. It ensures efficiency and clarity of changing speed modes. On the Priora there are no synchronizers in reverse gear. Taking this into account, if there is a problem with activating reverse speed, it is recommended to depress the clutch and place it in neutral (N). Next, you need to squeeze and engage reverse gear.
According to the maintenance regulations, after a mileage of 75,000 km, the lubricant in the gearbox on a Priora should be changed.
Transmission fluid selection
The gearbox can be filled with TM 412 fuel. You should pay attention to the 75-80W version, which belongs to the GL-4 group. Its advantage is that it has excellent viscosity-temperature characteristics. If you use low-quality fluid, noise and crunching noise may soon occur from the gearbox. The replacement procedure can be done with your own hands.
Detection and elimination of gearbox breakdowns
The functioning of the vehicle is influenced by the conditions in which the machine will be operated and how often its system will be serviced, for example, changing transmission oil. Timely replacement of this fluid helps extend the service life of the gearbox. The operation of the gearbox itself directly depends on the quality of the lubricant. Replacing the oil seal is a necessary procedure that is important to carry out if there is a fuel leak from the gearbox.
The need to repair the Priora gearbox arises if the characteristic noise of the gearbox begins to occur when driving on the road. There are several reasons for the noise. In particular, this may be due to the fact that some of the components included in the box have worn out. Typically, disassembly of the device is required. It is better to entrust the removal and disassembly of the gearbox to professional craftsmen.
Over time, gearbox cushions wear out. As a rule, because of this, the gearshift knob begins to rattle. For repairs, only original spare parts must be used.
1.1. Technical specifications
The gearbox has three shafts, a classic design, four synchronized forward gears and an unsynchronized reverse gear. The drive shaft gear and driven shaft gears are in constant mesh with the intermediate shaft gears. Gear shifting is done by connecting the corresponding gear to the driven shaft.
A = 122.0 ± 0.5 mm (see Fig. Installing the speedometer drive gear)
1.75; 1.81; 1.87; 1.93; 1.99 mm
1.88; 1.95; 2.12; 2.19; 2.26 mm
Gearbox ratios with engines 1.8, 2.0 and V6 2.4 dm3
Transmission ratio
Full gear ratio
At the final drive ratio
Gearbox ratios with V6 engines 2.8 and 2.9 dm 3
Transmission ratio
gearbox oil SAE 80 Ford SQM 2 C 9008 A or semi-synthetic gear oil Ford ESD M2C 175A
Gear selection mechanism.
Priora and Kalina cars use the VAZ 1119 gear selection mechanism, this is a modernized ten-wheel mechanism. It has a stronger lever, a wider spring, and overall the mechanism is more reliable.
But as you can see in the photo, this does not mean that it has stopped breaking. As a rule, it cannot be repaired and requires replacement as an assembly.
How to adjust gear shifting on a Priora
Reasoning from a car owner named Eberhard: Excellent engine and handling, the car is responsive and maneuverable. Large trunk. The dynamics are very excellent for such money. The behavior of the car in winter is just right for our country. Very warm. In winter, when I get behind the wheel, I take off my jacket, because it’s hot, even on the heat setting. Ha 92 petrol walks great
Description: The dimensions are as follows: length - 3535, width - 1100, height - 1411 mm. The wheelbase is 2907 mm. Ground clearance 125 mm. The car is equipped with a hybrid power unit. The 2-cylinder engine is equipped with a system that provides engine power output. There are 4 valves per cylinder. The diameter of one cylinder is 73 mm, the piston stroke is 78 mm. The engine crankshaft accelerates to 6000 rpm. Maximum torque is maintained up to 2022 rpm.
1.1. Technical specifications
The gearbox has three shafts, a classic design, four synchronized forward gears and an unsynchronized reverse gear. The drive shaft gear and driven shaft gears are in constant mesh with the intermediate shaft gears. Gear shifting is done by connecting the corresponding gear to the driven shaft.
A = 122.0 ± 0.5 mm (see Fig. Installing the speedometer drive gear)
1.75; 1.81; 1.87; 1.93; 1.99 mm
1.88; 1.95; 2.12; 2.19; 2.26 mm
Gearbox ratios with engines 1.8, 2.0 and V6 2.4 dm3
Transmission ratio
Full gear ratio
At the final drive ratio
Gearbox ratios with V6 engines 2.8 and 2.9 dm 3
Transmission ratio
gearbox oil SAE 80 Ford SQM 2 C 9008 A or semi-synthetic gear oil Ford ESD M2C 175A
Made with German precision
When this concept was transferred from paper to a real exhibit, and the mechanism began to work correctly, the module went to Germany, to. The Germans brought the knot to fruition. The company has long been developing various transmission systems and manufacturing engines. German experts carefully looked at the development of Russian engineers and proposed the following. Using a 3D center plate instead of a locking spring return system would make more sense. The special spatial shape of this plate was calculated using computer programs and manufactured using high-precision equipment. This accuracy is due to the fact that a special locking ball moves along the plate. And it is the plate that regulates the effort when selecting and engaging gears. The characteristics that the new cable gearbox will have were selected using a simulation stand. The man sat down on a chair and switched on various gears. Automatic systems simulate shift patterns, lever forces and strokes. And just like that, in small steps, the Germans managed to find the optimal settings. With the help of a computer, parameters and a mathematical model were selected, according to which these plates would then be manufactured.
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Most likely the one that is 4 rubles. there is a hollow shaft for the config of the Christmas tree 2110 (there is an oil channel inside the shaft, which is more fragile. Under the rows is not recommended), and for 8 rubles. on the base of 2108 there is a cast shaft (usually the rows are assembled on it... it is several times stronger than 2110, but the gear tree is placed under 08 gears)...
The Prior itself has a pair of 3.9 2108 and row 18 for the main pair of 08...
In general, the Prior has its own secondary shaft... the fit for first gear has been changed!
Until 2012, the Prior gearbox had 2110 secondary shafts with a removable drive gear Gl. pairs, that's why it costs 4 thousand, because... The kit includes only 2 gears (driver and driven).
Since 2012, Prioras have been equipped with secondary shafts with a non-removable drive gear. shaft The GP kit includes a driven (large) gear and a secondary shaft with a drive gear cut into it. Tue. The shafts of the 2110 and the new model are not interchangeable, the gear ratios are the same, but the internal mounting holes of the gears are different.
P.S. The secondary shafts of the 2108 and the new Prior model, although they have non-removable, cut GP gears, are also not interchangeable.
