DIY Chevrolet Rezzo rail repair

Chevrolet Rezzo. STEERING

On Chevrolet Rezzo cars, power steering and a gear-rack-type steering mechanism are installed. The steering system of a car consists of a steering wheel, a steering column, a steering gear equipped with a hydraulic booster, and two steering rods connected by ball joints to the steering knuckles of the front suspension.

Steering wheel with driver's airbag, in the steering wheel spokes

Rice. 8.1. Steering column: 1 - steering column shaft; 2 - steering column housing; 3 - a mechanism for adjusting the position of the steering column; 4- ignition switch (lock)

Rice. 8.2. Steering gear: 1.9 - steering rod ends; 2.8 - steering rods; 3, 7 - protective covers; 4, 5 - pipelines; 6 - steering gear

The switches for the sound signal are attached. The steering wheel hub is attached with a nut to the steering column shaft.

The steering column (Fig. 8.1) is crash-proof, adjustable in tilt angle, equipped with energy-absorbing elements that increase passive safety, and an anti-theft device in the ignition switch (lock) that blocks its shaft. The intermediate steering shaft is connected to the steering shaft and the steering column shaft by cardan joints. The steering column also contains controls for headlights, direction indicators, washer and windshield wiper.

The steering gear (Fig. 8.2) is installed in the engine compartment. The steering housing is attached to the front axle cross member.

The pressure of the working fluid in the hydraulic booster is created by a vane-type pump, which is installed on the engine bracket and is driven by a poly-V-belt from the crankshaft pulley. The bypass valve installed in the pump maintains the required pressure of the working fluid in the power steering, depending on the engine speed.

The power steering reservoir is installed in the engine compartment on a bracket near the battery mounting shelf and is connected by hoses to the power steering pump and to the working fluid return line. If the power steering fails, the ability to control the vehicle remains, but the effort on the steering wheel increases. Steering rods 2 and 8 (see Fig. 8.2) are attached to the steering rack by 6 ball joints. The ends 1 and 9 of the steering rods are attached to the steering knuckles of the front suspension by means of ball joints. The tips are secured against turning on the steering rods with locknuts. The toe-in of the steered wheels is controlled by rotation of the steering rod in the ball joint relative to the tip.

Chevrolet Rezzo. INSPECTION AND INSPECTION OF THE STEERING CONTROL ON THE VEHICLE

Check the condition of the steering regularly as driving safety depends on it.

When inspecting the steering, pay particular attention to the condition of the protective covers and screw connections. Be sure to replace torn, cracked or lost elasticity rubber covers, otherwise water, dust and dirt trapped in the nodes will quickly disable them.

On vehicles equipped with a power steering, check the condition of the hoses and pipes connecting the pump, reservoir and steering gear.

reliability of fastening of the steering gear and steering wheel;

- no clearance in the steering rod bushings and ball joints of the steering rod ends;

- reliability of tightening and locking of the bolts fastening the rods to the rail and nuts of the ball joints;

- the absence of jamming and hindrances that impede the turning of the steering wheel.

If you find knocking and jamming, disconnect the steering rods from the telescopic arms pivot arms and repeat the check. If the knocking and jamming continues, remove the steering gear from the vehicle and repair it.

1. Check the condition of the protective covers of the ends of the steering rods. Replace covers that are torn, cracked, or lacking elasticity.

2. By sharply turning the steering wheel in both directions (this should be done by an assistant), visually and audibly check the fastening of the steering mechanism. Moving the mechanism and knocking is not allowed.

The safety of the driver and other road users depends on the stable operation of components and assemblies, including the steering rack. Therefore, to ignore the arisen "technical illness" means to expose oneself to danger. The best option in this situation would be to seek help from professionals - workshop masters. Consider how the diagnosis and repair of the Chevrolet steering rack is performed in a car service.

The rack and pinion mechanism includes:

• Tie rods and tips.
• Gears and toothed bar.
• Carter.
• Spring system.
• Bearings.
• Limiters.

We can say that the rack consists of 3 parts: the power steering gearbox, the steering rod and the hinges.

Please note that the design of the rack and pinion may differ depending on the vehicle manufacturer.

There are 3 types of rack and pinion mechanisms:

• Mechanical construction.
• Hydraulic device.
• Electric rail.

Their difference lies in the principle of action.

Signs of failure of the rail include:

1. A knock that can be superficial or internal.
2. Backlash.
3. When driving on a bad road, the vibration of the steering wheel is felt.
4. The steering wheel does not rotate well or does not fit into place.
5. The hum of the mechanism in question.

Signs of breakage include a rack and pinion leak when the rubber seals are worn out.

The most common reasons for the failure of such an important node can be:

• careless driving;
• hitting a wheel in a hole when the car is moving at high speed;
• regular car operation on uneven roads;
• constant collisions with obstacles.

The purpose of the diagnostic work is to identify faults in order to make a decision in the future about the possibility of repairing the Chevrolet steering rack or the need to replace it.

Diagnostic tasks include:

1. Determination of the source of the backlash.
2. Identifying the reasons for the difficulty in driving a vehicle.
3. Search for defects that lead to leakage of technical fluid from the system of the hydraulic power steering and steering gear.

Service station specialists use two methods of vehicle inspection in their work:

1. External inspection of the car.
2. Instrumental inspection of the car.

Now in more detail about each of the above methods.

Service station experts check the play in the handpieces by touch by rotating the steering wheel. Wiggling occurs in different planes. Inspection can be carried out using jacks or placing the vehicle on a lift.

This test method involves the use of special diagnostic tools. The main instrument for determining the backlash is considered to be a backlash dynamometer.

Specialists of the service center pay attention to the size of the clearances in the bearings and joints of the steering rods.

If the gap is large and causes an increase in backlash, and repair is not possible, the workshop technicians recommend a complete replacement.

The task of adjusting the rack is to eliminate knocking, backlash and restore ease of control of the machine. Service station technicians place the car on a pit or overpass by setting the wheels of the car in the "straight ahead" direction.

Adjustment is carried out by tightening the adjusting screw. It is located in the steering end cover.

Experts measure the backlash using a special device - a backlash meter. Service station masters adhere to the established GOST.

After completing the work, the craftsmen test the car in motion, performing various maneuvers. If the severity in the control is not felt, it means that the work was done with high quality, the problem has been eliminated.

Tightening the rail screw is carried out until the problem is completely eliminated.

It is important to carry out repairs with clean hands to avoid getting dirt and sand on the parts, so as not to spoil the hydraulic booster and the rail in the next few days.

When repairing the rail, pay attention to the correct tightening of the boot clamps.

In contrast to the garage conditions at the service station, there are all the possibilities necessary for a high-quality repair. This is a well-equipped workplace. Availability of special hoists and tools.

The service center technicians use special devices to identify malfunctions. They adhere to generally accepted repair standards and comply with GOSTs.

The main thing is that the work on technical treatment is carried out by highly qualified masters who come into contact with this problem every day.

The steering rack is a capricious mechanism, the failure of which can lead to an unusual situation on the road.

Therefore, it is advisable to carry out repairs at a service station. Contacting a specialized center is a guarantee of high-quality technical treatment of a problem node.

All the advice of most motorists is identical with the opinion of experts. Repair work on the steering rack must be carried out in specialized centers.

This is a guarantee of quality repairs, therefore, the safety of the driver and other road users.

Elimination of the rail problem is possible with the use of special tools and diagnostic tools. They are fully equipped with service stations.

In winter, experts recommend warming up the power unit and not twisting the steering wheel, immediately trying to leave the parking lot. It is necessary in place to smoothly turn the steering wheel several times to warm up the oil.

Motorists are advised to pay more attention to the condition of the anthers.

In order for the mechanism to work efficiently and for a long time, you should not hold the steering wheel in the extreme position for more than five seconds.

If you have a Chevrolet Rezzo, Chevrolet Cruze or other model steering rack and there are any signs of a rack malfunction, our car service technicians will help you diagnose and repair any Chevrolet steering rack.

Overall, Chevrolet owners face

with a relatively small number of problems in the operation of their cars, which deservedly enjoy a reputation for being reliable. However, the steering rack is a vulnerable part in most cars, and the Chrevrolet is, alas, no exception.

The reason for the rapid wear is that it is this element that takes all the shocks, for example, when driving on uneven roads.

Since the quality of the road surface in our country leaves much to be desired, there is no need to talk about the safe operation of the rail in excess of the working resource established by the manufacturer. This figure is 200 thousand kilometers, but most often it is still required to contact a car service for repair work a little earlier.

Failure of this unit does not go unnoticed for the car owner, since any malfunctions in the steering immediately "catch the eye". These signs include:

1. The appearance of a characteristic knock in the steering rack, which is felt like a beat in the steering wheel. At first, this malfunction is felt only when turning or driving over an unevenness, however, over time, the intensity of its severity increases.
2. Tank leak power steering, hoses or other items. Usually the car owner is informed about the violation of the integrity of the system by an oil stain, which is easy to notice on the asphalt after a long parking. Even with an insignificant level of leakage, this malfunction carries serious risks, since, firstly, when the level of the liquid drops to critically low values, the hydraulic booster will stop working.Secondly, with a loss of tightness, dirt enters the system and the appearance of corrosion is significantly accelerated.
3. The appearance of a backlash in the steering rack, which increases as soon as you turn the steering wheel strongly in any direction.
4. To turn the steering wheel, you need to apply more force than before.

The frequency of the preventive check of the technical condition is 2 times a year. This frequency allows the driver to be confident in the handling of his vehicle.

In the event of a malfunction, the rail is usually diagnosed in several stages:

1. Dismantling the rail and assessing its condition. At this stage, it is important to make sure that the given element is not deformed. In the latter case, the safest option would be to replace the complete assembly, since the restored rail with such damage will probably not last long.
2. Checking the status slats on the stand. With its help, it is possible to identify even small problems in the elements of the node due to the most accurate simulation of workloads. Such diagnostics does not take much time, which is also a significant plus.
3. Next, the rail is disassembled and each element is thoroughly cleaned. For this, both chemical compositions and ultrasound can be used. The unit must be cleaned not only of dust and dirt, but also of corrosion, since it is often its presence that has a negative effect on vehicle handling, in particular, it gives a feeling of a tighter steering wheel. This stage is periodically carried out as a preventive measure in order to extend the life of the unit.
4. Then, each of the elements is diagnosed and it is determined which of them should be replaced.

Often, diagnostics of the steering rack alone is not enough to identify all the reasons for the poor handling of the car. It may also be necessary to check the condition of the chassis and steering shafts.

Often, the owners of new Chevrolets complain about the knock of the steering rack in a car, which actually rolled off the assembly line not so long ago. You should not rush to diagnose and replace the steering rack in this case - in order to fix the problem, it is enough to tighten the screw on the slotted steering rack, as well as one more screw on the rail. This operation can be easily performed in any car service. However, if a problem occurs after the car has been in operation for a certain time, there is still a malfunction in the rail, and you cannot do without diagnostics and subsequent repairs.

Depending on the existing damage, the repair of the Chevrolet steering rack can be divided according to the degree of intensity:

• preventive includes only cleaning and debugging the work of elements;
• for more serious repairs, in addition to cleaning, the damaged units are replaced;
• overhaul involves replacing the steering rack in the event that it cannot be restored (usually this happens when it has undergone a sufficiently serious deformation).

Most often, during repairs of this kind, they replace, first of all, a repair kit, which includes the most wearing parts - oil seals, gaskets, etc. repeat diagnostics and repair work due to failed unreplaced units.

Both when selecting a repair kit and for other spare parts for the steering rack, it is recommended to use original high-quality parts. This is due to the high level of stress, and therefore rapid wear. As a result, low-quality analogs fail extremely quickly, and repairs can be even more expensive than the first time.

After replacing all parts, the rail is assembled, and repeated bench tests are carried out in order to determine whether its performance meets the standards. Next, it is installed and the power steering fluid is poured, which must be driven through the system. As a final stage, the mechanism is tested with the engine running. Such a multi-stage control makes it possible to verify the quality of the repair.