Replacing the universal joint shaft spiderVAZ-2107 can both on the overpass and on the lift, pit. However, if the rear of the car is raised higher, then you can do all the work on a flat surface. In order to understand the general principle of the cross, its purpose and composition, it is necessary to thoroughly consider the design of the cardan shaft. Its function is to transfer the rotational motion from the gearbox to the rear gearbox, in which there is a differential. It also made the connection of two axes connecting the gearbox with wheel hubs.
The design of the cross
Referring to any directory, you canfind out that the crossbar is any device that consists of two intersecting axes. Actually, it is clear from the name, since there is a direct indication that the device is a cruciform shape. When replacing the universal joint shaft spider in a VAZ with rear wheel drive, care must be taken that the work should be carried out with the highest quality possible.
The reason for this is rather small elements thatare part of the mechanism. The base is in the shape of a regular cross. Its edges are made in the shape of an ideal cylinder, inside they are all-metal. But the work of the mechanism is greatly influenced by those elements that are put on the edges of the crosses - metal cups with rollers along the edge. All elements of the crosspiece are made of alloy steel, which increases its reliability and durability.
The purpose of the cross and the principle of operation
If you know how to replace the crosspropeller shaft on the WHA classic series, then you saw the shape of the node. The driveshaft consists of two parts. The first is connected with the elastic coupling to the gearbox shaft. The second is joined to the flange at the entrance of the rear axle gearbox. Everything would be fine if the flange of the gearbox and the output of the gearbox were on the same axis. But everything is a little more complicated - the flange is slightly lower.
Everything else, when drivingthe gearbox is shifted up and down, and this offset is quite impressive. It is simply impossible to use a one-piece cardan shaft, you need to look for a way out of this situation. To do this, it is divided into two parts. First, the cardan is installed as horizontally as possible, then the crosspiece is mounted and with its help a slight bend is made down. On the very edge again stands the cross, which connects to the last element - the flange on the propeller shaft.
Diagnostics of the universal joint shaft cross
A terrible howl is a sign that is necessaryreplacement of the universal joint shaft of the VAZ-2107. Crunch and metal grinding can sometimes be heard. To make sure that the cause of this is the cross, it is necessary to diagnose it. It is most convenient to carry out such work on a viewing pit or elevator, since the review is better and more convenient. But if there are no such attributes, then you can just lift the car above the ground.
Не забудьте только зафиксировать его положение, setting stops under the front wheels. First of all, carefully inspect the status of the driveline. All retaining rings must be in place, otherwise a glass of the cross may fall out of the seat. Now check the backlash in the crosspiece. To do this, place a screwdriver between it and the drive shaft. Try to move it to the sides. If you feel even a slight backlash, then you need to change the cross without fail.
Tools needed for repair
On the car VAZ-2107 replacing their crosseshands produced using a small number of tools. Of course, the manual says that you need a special puller, without it you can’t do anything. But practice shows that everything can be done without the presence of such a special tool. Of course, you need a good jack and support. But this is for those cases when the repair is made on a flat surface, and not on the viewing pit or lift.
The only tool that reallyNecessary - forceps to compress the locking rings. Without them, it will be difficult not only to pull the rings out of the slots, but also to install the new ones in place. In addition, the keys must be in the arsenal, pliers, screwdrivers, and lubrication. Before installing new crosses, it is recommended to grease them abundantly with grease for CV joints. Do not interfere with the presence of a hammer, wooden mallet or a bronze blank. And also punch and vice will be very useful.
Replacement
Before starting work, install a car like thisway that he can't roll. The replacement of the VAZ-2107 universal joint cross is not carried out for long. The price of one cross is about 150 rubles. There are, of course, more expensive ones, but the owners of the sevens are unlikely to acquire them, since the quality is the same for everyone. For work, you need a hammer, a punch, tongs, two keys - a spanner on 13 and an open-end wrench on 12. Unscrew the nut from the flange with a wrench on 13, and the bolts can be easily held with a screw on 12.
Now unscrew the suspension connectionbearing with bracket on the body. To remove the propeller shaft from the splines, apply several sharp blows with a hammer on the flange. That's all, the gimbal free, now with forceps pull all the rings. Using a puller to remove the cups of the crosspiece is a long process. Therefore, it is better to use the old-fashioned method, even if it is more aggressive. Bronze disc tapped eyes, which are cups of crosses. If they are not very rusted, they will fall out of sharp blows. Before installing new crosses clean the seats from contamination.
Conclusion
As you can see, replacing the cross of the propeller shaftVAZ-2107 can pass quite quickly, and it is not necessary to have the qualification of a locksmith. In addition, it does not require the presence of a huge amount of special tools, enough for you a pair of keys and a hammer. Just do not break the eyes. For this reason, it is recommended not to use a hammer, but a bronze blank, as it is soft and will not be able to harm the driveshaft.
