In rear-wheel drive cars, which include the VAZ “classic”, torque from the gearbox to the rear axle gearbox is transmitted via a cardan shaft. The design of the latter is simple and reliable. However, like all car components, the VAZ 2107 cardan requires condition monitoring and periodic maintenance. The need to repair the cardan arises in the following cases:
- the crosspiece has collapsed (worn out);
- the shaft alignment is broken;
- the outboard bearing has failed;
- The elastic coupling has broken.
To repair the driveshaft, it must be removed from the vehicle. This can be done even without an inspection hole and a lift, simply by lifting the front of the car with a jack. But this method is inconvenient and not entirely safe. Therefore, it is better to carry out work in a garage where there is a car lift or inspection hole.
VAZ 2107 driveshaft design
The driveshaft of the VAZ 2107 consists of a pair of main parts connected by means of a cross. An elastic rubber coupling is attached to the front of the cardan, providing connection between the cardan and the gearbox. The rubber of the coupling absorbs shock loads, and the spline connection allows the driveshaft to move back and forth when the angle of inclination of its parts changes or vibrations of the engine and gearbox when driving over bumps and holes.
- Bolt securing the flexible coupling to the flange
- Transmission output shaft flange
- Rubber element of elastic coupling
- Flange centering sleeve
- Flexible coupling insert
- Flexible coupling bolt
- Front propeller shaft flange
- Oil seal cage
- Stuffing box
- Gearbox secondary shaft
- Mud deflector
- Flange nut
- Centering ring seal
- Front driveshaft
- Centering ring
- Retaining ring
- Intermediate support
- Cork
- Rubber bushing
- Spacer
- Rear driveshaft
- Flange universal joint yoke
- Elastic coupling
- Safety bracket
- Balance plate
- Intermediate support cross member
- Retaining ring
- Front propeller shaft fork
- Retaining ring
- Needle bearing
- Stuffing box
- Oil seal cage
- Universal joint fork
- Cross
- Fork fastening nut
- Intermediate support bracket
- Elastic cushion
- Bearing shell
- Bearing
- Dirt remover
The main parts of the cardan are made of hollow pipe, which minimizes its weight. Less mass (which means inertia) reduces the load on the engine and transmission parts of the car.
To avoid vibration when the cardan rotates, its parts are balanced at the factory using special equipment. To ensure balancing, weights of the required weight are attached to the outer surface of the cardan.
Product delivery options
Note! Below are the shipping methods available specifically for this product. Payment options may vary depending on the shipping method. Detailed information can be found on the “Delivery and Payment” page.
Parcel by Russian Post
Available payment methods:
- Cash on delivery (payment upon receipt)
- Using cards Sberbank, VTB, Post Bank, Tinkoff
- Yandex money
- QIWI
- ROBOKASSA
Shipping throughout Russia. Delivery time is from 5 to 12 days.
Parcel by Russian Post 1st class
Available payment methods:
- Cash on delivery (payment upon receipt)
- Using cards Sberbank, VTB, Post Bank, Tinkoff
- Yandex money
- QIWI
- ROBOKASSA
Shipping throughout Russia. Delivery time is from 2 to 5 days. More expensive than regular delivery by Russian Post, approximately 50%. Parcel weight up to 2.5 kg
Express Parcel EMS
Available payment methods:
- Cash on delivery (payment upon receipt)
- Using cards Sberbank, VTB, Post Bank, Tinkoff
- Yandex money
- QIWI
- ROBOKASSA
Shipping throughout Russia. Delivery time is from 3 to 7 days. More expensive than regular delivery by Russian Post, approximately 100%.
Transport companies
Available payment methods:
- Using cards Sberbank, VTB, Post Bank, Tinkoff
- Yandex money
- QIWI
- ROBOKASSA
Delivery is possible to any locality where there is a representative office of the transport company. Delivery time is from 2 to 10 days. Sending large parcels is approximately 50% more profitable than by Russian Post.
Courier delivery in Togliatti
Available payment methods:
- Cash upon receipt
- Using cards Sberbank, VTB, Post Bank, Tinkoff
- Yandex money
- QIWI
- ROBOKASSA
Delivery time from 1 to 12 hours.
Malfunctions of the VAZ 2107 driveline
You can determine that the VAZ 2107 driveshaft is faulty by the following signs:
- Knocking sound after engaging the clutch. The cause of the knocking may lie in a poorly tightened universal joint drive, worn splines, damaged elastic coupling, or failed crosspiece bearings.
- Grinding noise when the car is moving. This sound occurs when the cardan joint bearings (crosspieces) are heavily worn.
- Vibration of the cardan when driving. This phenomenon occurs when there is mechanical damage to the driveshaft or dirt adheres to the driveshaft, which disrupts its alignment. Vibrations also occur when there is significant wear on the gearbox driven shaft, outboard bearings, cardan crosspieces, drive gear flange of the rear axle gearbox, or loose fastening of the cardan drive.
- Knocking noise during sudden acceleration or engine braking. The reason for this lies in the wear of the cardan shaft crosspieces.
You can check the condition of the cardan drive by placing the machine on a lift or inspection hole. The transmission parts should not play when the cardan is “rocked” in different directions.
To eliminate malfunctions, it is necessary to replace the VAZ 2107 driveshaft crosspiece, coupling, and other damaged parts.
Conclusion
It must be remembered that work done correctly, as well as high-quality spare parts, will help the car owner forget about this unit for a long time. And don’t forget about timely lubrication of the bearings through a grease nipple - then the next repair will not have to be done soon.
Of course, taking on this work yourself or entrusting it to service station mechanics is the job of every car owner. But, taking into account that the owners of VAZs (especially “classics”), as a rule, are not rich people, there is a reason to do this work yourself, thus saving a decent amount.
Source
The device of the VAZ 2107 cross
The VAZ 2107 driveshaft crosspiece is a flexible connection between the gearbox and the rear axle of the car. This hinge ensures the coincidence of the rotation axes of the cardan parts and makes it possible to transmit torque when bending the cardan parts. The cross connects the forks of the cardan halves, which are attached to its ends. The main element of the cross is needle bearings, which ensure the mobility of the hinge. The bearings are inserted into the fork holes and secured with retaining rings. Bearing wear causes joint play, knocking and other extraneous noise when moving. In this case, it is necessary to replace the VAZ 2107 crosspiece.
What is needed to replace the VAZ 2107 crosspiece
First of all, you need a new crosspiece for the VAZ 2107. Replacing it is quite labor-intensive, so you should not skimp on this part. Original spare parts, made of high-strength heat-treated steel, provide a mileage of up to half a million kilometers without replacing the spider. At the same time as the cross, the retaining rings are also replaced, so these parts are often included in the kit.
To replace the parts you will need:
- set of open-end wrenches;
- hammer;
- pliers;
- puller for bearing replacement;
- metal brush for cleaning dirt and rust.
Replacing the crosspiece begins with dismantling the driveshaft.
Preparing for work
When buying a new crosspiece for a VAZ 2107, you don’t need to try to save money. Everyone knows that “the miser pays twice,” so it’s better to buy an original part right away than to change a couple of crosses in six months.
The body of the crosspiece is made of heat-treated steel. This is necessary to ensure the special hardness of the studs. Thus, the quality of the material plays a big role in the service life of the part. How long can a car run without replacing crosspieces? It is believed that approximately 500 thousand km!
The retaining rings and bearing also need replacement. Please note that the rubber of the bearing itself must be sufficiently elastic.
Removing the VAZ 2107 cardan
It is better to remove the cardan on a lift or inspection hole. In the latter case, it is necessary to secure the car wheel with boots and secure it with the handbrake so that the car does not roll away. Only after this can you begin dismantling.
The work is performed in the following sequence:
- unscrew the bolts connecting the cardan to the gearbox flange;
- unscrew the nuts securing the outboard bearing to the bottom of the car;
- Carefully, using a wooden hammer, knock the cardan out of the splines of the elastic coupling.
You need to knock on the cardan parts with a wooden hammer or use a regular hammer and a wooden spacer. Otherwise, the cardan pipes may be deformed.
Removing the steering column from a car
To replace the driveshaft, you need to remove the steering column from the car.
Begin:
- de-energize the battery;
- after that, the cover plate of the signal switch is removed (to do this, pry it off with a screwdriver);
- remove the cover from the steering wheel;
- Now we are faced with two self-tapping screws, which should be unscrewed with a curly screwdriver;
- after this the lid is completely removed;
- now you need to use the same figured screwdriver to unscrew the three screws that secure the contact of the sound signal;
- disconnect the wire and remove the contact;
- now you will need to take the key for 24;
- use it to unscrew the nut that secures the steering wheel (this should not be done completely, leaving the nut mounted on the shaft);
- remove the steering wheel by pulling it towards you.
Note. The steering wheel should be removed not by jerking, but by rocking the left and right sides and at the same time pulling the part towards you. The nut is not completely removed due to the fact that the steering wheel can come out of the shaft abruptly, thus injuring the face. After removing the steering wheel from the splines, the nut is completely unscrewed.
Advice. If you cannot remove the steering wheel alone, you need to use the help of an assistant who will pull the steering wheel up while the repairman strikes the shaft through a drift.
- dismantle the steering column switch assembly;
- We also remove the ignition switch;
- take a 13mm wrench and unscrew the bolt securing the elastic coupling (located under the pedals);
- Unscrew the bolts securing the steering shaft at the front.
Note. These fasteners are fixed with bolts with shear heads, which eliminates the possibility of standard unscrewing. To do this, you need to strike with a chisel in a tangential direction.
- now unscrew the nuts securing the steering at the rear, using a 13mm wrench;
- dismantle .
Replacing the VAZ 2107 crosspiece
To make disassembling the cardan transmission easier, you should first clean the parts with a wire brush and treat the mating areas with kerosene or WD-40.
Before disassembling the cardan, it should be placed on a flat surface in a well-lit place. Replacing the VAZ 2107 crosspiece begins with removing the retaining rings using a puller.
Before dismantling the crosspiece, it should be tapped with a hammer through a wooden spacer and treated with WD-40.
The crosspiece is removed by successively beating its bowls with a hammer and removing them from the holes of the forks. After the cross is removed, it is necessary to thoroughly clean its seats and grooves for installing the retaining rings.
Installation of the part begins with dismantling its bowls, which are sequentially installed in the seats on the cardan forks, while simultaneously being put on the cross.
The metal of the crosspiece bowls is very hard, but fragile. Therefore, they should be driven into the seats very carefully. After the bowl has taken its place, it must be secured with a locking ring.
Installation of the cardan is carried out in the reverse order of removal. The spline assembly should connect without effort and should be lubricated before assembly.
Spare part selection
In order to repair this unit less often, you need to purchase good quality spare parts. The correct choice of crosspiece determines how often it will need to be replaced. Choice of cross:
And another effective way to check. The crosspiece taken out of the package should be placed on a piece of glass - a glass counter is quite suitable, or on the same side-view mirror (removed, of course). Holding your fingers opposite the axis of the cross, you need to try to swing them on this surface. Next, you need to do the same with other axes. Then turn the part and do the same operation again. During the inspection process there should be no knocks on the glass surface, which will indicate the absence of deformation of the part.
You should buy two parts at once, because after replacing one, the replacement of the other will very soon follow. Many people immediately change the bearing of the suspension device, so as not to have to repeat what they have done before, that is, disassemble everything, wasting time and their own nerves.
