The VAZ 2114 gearbox is one of the key elements of the car. It is she who is able to ensure the stable operation of the power unit, as well as help change the torque from the engine to the wheels during acceleration. With the gearbox, the rotational force becomes a step motion. What to do if the VAZ 2114 gearbox is buzzing?
The gearbox of this car includes many parts, each of which is needed to perform certain functions. Key parts include rotating shafts as well as gears and transmissions.
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Additional Information. The main pair is the main gear of the main shaft of the gearbox. It helps in reducing the engine speed. The main pair is also needed to reduce the rpm in a ratio of 1 to 4. The standard indicator of the main pair is an index of 3.7. If you change this indicator, you can change the dynamics of the car.
The size of the pair determines the maximum vehicle speed as well as acceleration. The reason for such a strong dependence is the influence on the transmission length.
Causes of malfunctions
The gearbox, like many other VAZ 2114 units, needs prevention. There are not so many main reasons that can lead to breakdowns or minor malfunctions of the gearbox. For example, if the VAZ 2114 gearbox makes noise, then one of the possible reasons is the gear teeth.
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Over time, they wear out and become unusable. The noise from the gearbox is not a reason for panic, because even an insufficiently qualified technician can repair the gearbox.
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The gearbox of this model from VAZ is a unit consisting of five steps.
Lack of oil
Another common cause of transmission noise is insufficient oil level. In order to solve this problem, just add oil.
Worn oil seals and mechanisms can be a source of noise. To fix the problem, they need to be replaced with new ones.
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In some cases, problems arise during gear shifting. The first thing to look at here is the drive rods. It is possible that they have already used up their resource and need to be replaced. After that, you need to start checking the reliability of the hinge. It will not be superfluous to take a look at the gear lever stem.
How to prevent gearbox damage
Early signs of a future malfunction include:
- The appearance of difficulties during gear shifting. It's getting harder and harder to change gear. Sometimes you have to squeeze the clutch and move the lever to neutral.
- The gears fly out.
- Oil leaks from the checkpoint.
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Another common cause of gear shifting problems is associated with improper shift drive debugging. Parts of the assembly often break and can also be the cause of the problem. To troubleshoot, it is necessary to correct or replace the thrust as soon as possible, as well as tighten the screws. Then you can start adjusting the drive and replacing the remaining non-working parts.
On some VAZ 2114 cars, a gear reset occurs. This process happens spontaneously. The reason is wear or breakage of the teeth (end) on the coupling. Sometimes the teeth on the gears fail. A similar problem occurs due to insufficiently competent debugging of the drive. In other cases, the reason lies in inaccuracy during the installation of the traction cover, which is intended for protection.
In order to correct this problem, it may be necessary to replace any defective parts. The next step is to debug the drive.
The next step is to install the cover in the required position. If there is an oil leak, then it is necessary to install the crankcase and change any gaskets that look worn out. Do not forget about the need to remove the box before repairing.
Prevention measures
In order to prevent any damage, you should use only high-quality oil. It is it that allows you to achieve the most coordinated and precise work of every detail and every unit of the vehicle's transmission.
In order to improve the quality of car service, it is better to give preference to oil of the GL-4 category. The best choice is mineral lubricant, but its cost may not be affordable for the owner of the VAZ 2114. In this case, you can think about purchasing a semi-synthetic or synthetic oil.
Why is the VAZ 2114 gearbox buzzing
Why can there be a hum? Usually, noise problems occur on machines that are already 10 years old. Also, this problem applies to cars with a mileage of more than 100,000 km. The main reason for the hum is wear and tear.
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Other reasons for the appearance of any noise from the checkpoint include:
- poor quality spare parts;
- development of the service life of the main elements of the car;
- improper operation of the vehicle;
- use of low-quality gear oil;
- repairs carried out by an illiterate craftsman who ruined something.
Ways to eliminate breakdowns
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- If all the gears in the VAZ 2114 gearbox have disappeared, then this means that the problem lies in the bearings. If the breakdown is not eliminated in time, the repair will be even more expensive.
- Noise after starting the engine. The cause of the malfunction also lies in the bearing (drive shaft) or lack of gear oil.
- The noise disappears after switching speeds. The trouble lies in the synchronizer clutch. It is possible that there are problems with the locking mechanism.
- The clutch cannot be fully disengaged. The "culprit" is the same drive shaft bearing.
To obtain reliable data on the condition of the car and the number of faults in the gearbox, you should rely only on high-quality diagnostics. Garage technicians usually do not have modern equipment that allows you to accurately determine the cause of some malfunctions, and today you cannot do without technology.
