Replacing the front wheel stud. Replacement and repair of front wheels

It happens that the stud fastening the wheel fails, and secure it securely on the hub is not possible. Often this happens with frequent removal of the wheel. Damage can be different - this is a breakdown of the threaded part, a broken hairpin or its curvature. Wear is due to inadequate care for that. There is dirt and sand, which in turn plays the role of abrasive. The cause of wear is also a badly tightened nut. Bummer details can be due to metal fatigue, from a strong impact and from the moment of tightening the wheel nuts. As a result, movement on the machine becomes unsafe. This fact can cause more serious damage and traffic accidents.

The solution to this problem

When this type of failure occurs, the front wheel stud must be replaced. In this case it is desirable to change not only the broken part, but the entire set. This is characterized by the fact that the breakage of one could damage the rest of the hairpins, although visually this can not be noticed.

Taking into account the brand of your vehicle, the replacement process can take place either on the removed hub or directly on the car. This is due to the design features of the machine. But, as a rule, you can make repairs without removing the hub. Almost every motorist can install the stud himself. It is enough to have the necessary tools and a little experience in repair work.

But what if the hairpin broke off on the road? In this case, it is almost impossible to eliminate this malfunction. In view of the fact that the wheel is attached to the hub by a certain number of studs (from four to six, the exception of "OKA" is three), you can get home or to SRT for the remaining ones. Initially, it is necessary to check the tightness of the wheel nuts and move very carefully, avoiding large bumps, and not gaining high speed. Replacing the hairpin of the front wheel hub is not a very laborious process, but requires certain skills and patience.

How to dismantle an unusable part

Below are the ways to eliminate this problem on the example of several "folk" brands of cars, both domestic and imported. In principle, the repair work does not differ significantly in its technology, but there are some differences related to the device auto.

Replacement of the front wheel stud - Toyota

In this case, the object of repair will be a Toyota Corolla. Just before the replacement you need to decide on the purchase of a set of spare pins. The best option is to purchase exactly the original parts, the quality of which is beyond doubt. Otherwise, there is a risk of buying low quality studs that can break off quickly, or their threaded part will soon break. Also, you should not make mistakes with the place of installation. The front and rear hubs have different studs. This advice applies to all vehicles that require the replacement of the front wheel stud.

Step-by-step replacement process

For work, you will need a standard set of socket wrench, hammer, insert, balloon wrench and jack. The car is mounted on a flat surface and is put on the parking brake. Next, we release the wheel nuts and, under the auto, we remove the wheel.

After the preparatory work, the brake caliper must be removed. Heads on 17 unscrew bolts of fastening of a support and we remove it from a disk. It is not necessary to disconnect the brake fluid supply hose, simply remove the brake housing slightly to the side.

On the inside of the hub, a technological connector is provided for dismantling and mounting the stud. We rotate the hub so that the damaged pin is located opposite this connector. Then, using a hammer, we knock out the hairpin. If it is securely held in its seat, then it must be treated with WD-40 or diesel fuel and allowed to slightly acidify. After that, the dismantling will be easier, if necessary, you can use the tutorial.

After removing the damaged spare part in its place, install a new one. Installation is the same as removing. When the hairpin has taken its place, you should hold it with the wheel nut so that it snugly seated in the brake disc. Replacement of the front wheel stud (Toyota Camry, among others) was successfully completed. If it is necessary to replace the remaining hairpins, the operation takes place in the same sequence.

It is worth noting that it is not advisable to use new nuts to the new bolts, which were installed on old studs, since there is a possibility of damage to their threads. This in the end can lead to rapid wear of a new set of products.

Repair process at VAZ

Replacement of the front wheel stud ("Niva" including) is carried out almost the same as the previous car.

The car is hung out by a jack, the wheel, a support and a protective brace of the brake mechanism is removed. Then the hairpin-bolt is knocked out with a hammer, having preliminary compared it with a cut-out for dismantling. To the wheel hub does not rotate, you need to turn on the first gear. The seat is cleaned of dirt and rust and then a new bolt is installed in it. On the body of the stud and in its fit are longitudinal slots. Therefore, you need to make sure that they match. Operating from the engine side, drive the hairpin with a hammer, and then pull the nut until it completely sits down. The whole amount of work takes about one and a half hours.

Replacing the front wheel stud with hub removal

Let's consider an example of replacement of a detail on cars "Matiz". Removing the damaged part on this car is impossible without removing the hub, as the brake disc stops .

The first thing to do is take out the swivel fist, the brake calliper assembly and the pads, and take them aside. From the first untwist steering draft. Then the hub mounting is dismounted to the stand, the ball support is unscrewed and knocked out . Preliminarily unscrew the hub nut, remove the hub, and the drive shaft is fixed so that the CV joint does not come out of the gearbox.

In the future, the hub is dismantled and access to the studs appears. Replacing the front wheel stud is standard. The damaged one is extruded, and a new one is installed in its place. After this you can start assembling the suspension mechanism.

Removal and installation of studs on "Chevrolet"

First of all, all preparatory work is carried out for unhindered access to damaged parts. The wheel, caliper and brake disc are dismantled from the wheel hub. For easy access to the screws of the penultimate one, it is necessary to change the position of the steering wheel hub rotation. Replacement of the front wheel stud ("Aveo 1.6" including) is as follows. The unsuitable part is pressed with a hammer using a wooden spacer, and a new hairpin is mounted in its place. Next, the entire assembly is assembled in a reverse order to the removal.

As you can see, the dismantling and installation of a new set of front wheel hub bolts are quite feasible at home. Replacement of the front wheel stud (Lacetti including) takes place in the same way, except for one - because of the hub design, the brake disc is not removed.

Repair of studs

Often motorists do not recommend repairing bolts. First, it is not always possible to do (bummer and curvature). Secondly, the safety of driving a vehicle is reduced. But still they can be restored. It's about thread damage. Replacement of the fastening pin of the front wheel may not be carried out if the thread is restored. For this, the hairpin is dismounted from the hub. Then it is clamped in a vice and a chamfer is removed from the end part of the file. Then, using the required size of the plate, drive the damaged area. If the part has no cracks and chips at the base, it can be used later.

Care

In order not to face such a problem as a breakdown and replacement of the front wheel stud, it is necessary to monitor the tightness of the nuts. When released, the disc is beaten against the hairpin. This leads to their breakage and thread wear. Before you remove the wheel from the car, you need to carefully clean the bolts from dirt so that it does not hit the threads of the threaded connection. The same operation should be carried out before winding the nut. It is advisable, after unscrewing the wheel, pre-wet threads using any type of oil products. So you will ease the course of the nut. These simple manipulations contribute to the safety of the part and take much less time than the replacement and repair of the studs.

In addition, always check the tightening of nuts and bolts after visiting the tire fitting. There is a high probability that in a hurry the service worker may not reach the wheel and this will damage the hairpins at best.