What is a rocker in a gearbox, where is it located and what is it for?

The gearbox is a multi-lever assembly mechanism that connects
the gear shift lever
and the rod that fits the gearbox.
It is located under the bottom of the car, as a rule, near the cardan or under the gearbox lever located in the cabin. In any case, dirt and water get there, which over time deteriorate the quality of lubrication of the rubbing elements of the slide, which is why they begin to wear out, leading to various problems. The average service life of the gearbox linkage will be 120 thousand km, but adjustment may be required during operation. photo gallery:

Backstage device

The design of the rocker depends on the car model, since different families use different types of gearbox controls. Therefore, consider the exact design of the gear lever

in the universal version is impossible, but you can study the approximate average version.

In most cars, the rocker consists of the following elements:

1. gearshift lever;
2. gear selection system traction;
3. gear selector fork pin;
4. finger lock;
5. drawstring fork;
6. yoke fork oil seal.

Gearbox mechanism

Connected together, these parts are responsible for ensuring that the gear shift lever engages the gears in the desired positions.

What is a rocker in a car gearbox?

Do you think that the rocker in a car is an ordinary lever with which you can conveniently change gears? This should upset you, but it doesn't. We have a lot to talk about, the information below will be very useful for you.

We call the linkage of the gearbox control drive a rocker. This part in the car is composite, complex and multi-component. It provides communication between the gearshift lever and the rod. The connecting mechanism in the gearbox is difficult to see or touch, since it is located between the lever and the gearbox, in fact, under the bottom of the car body. In some cases, a place is allocated for this mechanism near the driveshaft, and it may also be located under the speed control lever.

We hope everyone understands what a car slide is. And no one else will confuse it with a lever for changing car speeds. And we continue to delve into this topic and move on to the next question.

What kind of backstage could there be?

According to their types, the scenes are divided into:

Visual difference between the standard and short-stroke ones (on the left - short-stroke, on the right - standard)

• Short-stroke. This is the same rocker, only with a reduced stroke due to the length of the handle itself;
• Standard.

Why do you need a short-stroke rocker? This type is used to reduce the distance and time of movement of the gearshift handle when changing gears. This allows you to make gear shifts more precise and much faster.

Also, on some cars, with standard shifters, when switching to 5th gear, the gearshift knob rests on the passenger. Installing a short-stroke one solves this problem.

The short-throw shifter is becoming popular among riders for whom shift speed is very important.

Replacing the oil seal

On a Lada Priora car, replacing the gearbox seal does not cause serious difficulties. Since we have already talked about performing this operation in the article (Replacing the Kalina gearbox oil seal), we will repeat here only the general principles.

To replace the oil seal, do the following:

1. Place the machine on a pit, lift, overpass or jack, observing all safety measures.
2. Disconnect the jet rod from the box.
3. Disconnect the gear shift rod from the driveshaft.
4. Remove the boot.
5. Disconnect the driveshaft from the gear selector rod.
6. Pull out the bushing with the oil seal.
7. Clean the seat in the transmission housing.
8. Replace the seal in the bushing.
9. Insert the bushing into the box, seating it on the sealant.

• Assemble the car.

Check the gearbox oil level and, if necessary, add the appropriate transmission fluid.

Signs of a malfunctioning rocker

Most often, problems with the rocker are eliminated by adjustment

or
replacing a repair kit
, less often the unit needs to be replaced.

In most car models, the gearbox linkage is a fairly reliable unit that can easily last up to 100 thousand kilometers without repair. The exception is cars that are not initially distinguished by high build quality - anything can happen to them. Wear of the link can be determined by the appearance of such signs as:

• increased play in the gear shift lever;
• problems with gear shifting;
• impossibility of adjusting the mechanism.

If the gears begin to engage excessively slowly, or the wrong gear is engaged that should be engaged, first of all you should try to adjust the drive if it is visually in normal operating condition. If the joints of the hinges work with a lot of play, the link will have to be changed.

The play does not affect the speed of movement and performance of the gearbox, but driving with it is extremely uncomfortable, so it is better to carry out repairs and replacement.

Backstage repair and adjustment

In this section we will describe the replacement of all consumables, as well as all the adjustments to the Priora gearbox that can be carried out on a particular transmission.

Backstage repair kit

To repair a Priora gearbox of any type, you will need:

• pit;
• overpass;
• lift;
• jack with safety stands.

In addition, you will need the following tools:

• a set of spanners and open-end wrenches;
• flat and Phillips screwdrivers;
• ratchet with extension and set of bits.

If you work from a jack, be sure to use safety stands. And after installing the car on them, shake it strongly in all directions. If it falls off the stands, it means you installed them incorrectly. But it’s better if the car falls while you’re not under it.

Why does the slide break?

Due to the applied forces on the backstage, it tends to become loose

TOP 5 common reasons for the failure of the scenes:

• from abruptly shifting gears when efforts are made, although you can do without them;
• under operating conditions, load on the mechanism;
• due to the installation of a low-quality part;
• if installed incorrectly (a misalignment of a couple of millimeters is enough), the link will fail after 100 km;
• during use, a displacement is formed (which guarantees incorrect loads on the equipment elements);

Let's sum it up

In order to operate a car normally and without difficulties, you must always remember the important features of its design. Often, after using a fairly reliable but old foreign car, the owner decides to exchange it for a domestic car, but the reliability habits of some elements do not allow him to use the vehicle normally. Constant sudden shifting of gears and lack of proper inspection of components often lead to the need to replace assembled parts and overpay for service and repair work. With the help of a normal service, you can get rid of virtually any problems.

The cost of repairing the rocker on domestic cars is often more expensive than the cost of the factory mechanism itself. Therefore, equipment replacement is most often used. If we are talking about expensive foreign cars, repairing the gear shift mechanisms in them is often completely impossible. It is impossible to answer unequivocally the question of what to do with a broken slide. You must always take into account the characteristics of the vehicle, the make and model, the year of manufacture, as well as the actual condition of the gear shift element in the car. Otherwise, repair work will be expensive and will not bring the desired results. Has a link ever broken on your car?

How to adjust the gearbox rocker

The linkage is adjusted when the standard one is changed to a short-stroke one or in case of repair. There are several adjustment methods:

1. On the first transfer.
2. In reverse gear.

You need to adjust the rocker with the engine turned off and the parking brake applied. Before you perform any actions related to disconnecting all the parts, make notes, they will be useful for later reassembling everything correctly. Otherwise, changes in the operation of the mechanism may occur.

To adjust, you need to loosen the clamp

To proceed directly to the adjustment itself, you need to loosen the clamp that directly holds the shift lever itself with the rod. Small turns or movement of the hub along the traction lever changes the clarity of the choice and the inclusion of certain gears. After each test, tighten the clamp and check your result.

To adjust the reverse gear, you need to gradually loosen the clamp and move the gearshift lever to a position that corresponds to the ideal engagement of the reverse gear. After adjustment, tighten the clamp back.

To adjust first and second gears, turn the lever clockwise. For the third and fourth speeds, you need to adjust the movement of the lever along the rod forward, in the direction of movement of the machine. However, it is not recommended to rotate it about its axis! To adjust the rocker in fifth and reverse gears, turn the lever in the opposite direction.

If there are problems with shifting first, third, fifth and reverse gears, the lever moves back. You need to do it until you achieve the desired result.

In vehicles where the role of the rocker is performed by cables, and not by a lever, adjustment occurs according to a different algorithm:

• First, move the gear lever to the neutral position.
• Then the gearshift lever boot is removed.
• The cables are tightened. Several nuts are used for tensioning. You need to loosen the far nut, which is located on the cable side. Initially, unscrew the nut 3 turns. Then we tighten the nut, which is located on the reverse side, 3 turns. All fasteners should be locked.
• Then the operation of the gear selector is monitored.

Most likely, the process may differ in different models of machines, but the principle of operation does not. Therefore, before starting work, you should familiarize

with instructions specifically for your car model.

If the adjustments made do not produce results, you need to think about repairs. Most likely, in the gear shift drive, the bushings and ball joints wear out, and the cables also stretch (according to the device). If there are no significant intentions to change the assembly, then you should think about purchasing a repair kit that is suitable for your car and replacing the problematic part.

Rigid traction mechanisms

For both “screw” mechanisms, the procedure is completely identical. So do this:

1. Raise or hang the machine.
2. Remove the cover and gearshift lever knob.
3. Unscrew the nuts and bolts securing the reverse lock plate (bracket), then remove the bracket.
4. Unscrew the lever axle nut. Be careful not to lose the nut and lock washer.
5. Unscrew the bolt securing the lever axle, then pull out the axle.
6. Go down under the car and unscrew the nuts of the rocker pad bracket (this is convenient to do with a ratchet and an extension).
7. Unscrew the bolts securing the torque rod to the car body.
8. Pull down the pillow with the lever.
9. Remove the retaining ring from the cushion.

• Lubricate the ball joint of the new cushion with any grease.
• Insert the lever into the pillow and make sure that it rotates freely and does not fall out of it.
• Place the pillow with the lever in place and secure it.
• Lubricate the new bushings and insert them into the lever.
• Replace the lever shaft.
• Have an assistant sit behind the wheel and go under the car yourself.
• Ask an assistant to engage first gear. If the lever is where it should be, then the repair and adjustment is complete. If not, then loosen the nut and bolt that tighten the clamp on the rod next to the driveshaft. While holding the rod, have an assistant place the lever in place corresponding to first gear and tighten the clamp.

Ask an assistant to engage all gears in order. If they turn on clearly and there is no strong play in the lever (on the rocker boxes), then you have done everything correctly and the repair and adjustment are completed.

How much does Kulisa cost?

The average price of a standard rocker will be around 500 rubles for a domestic car and about 1000 for a middle-class foreign car. Short-stroke ones, due to the fact that this is considered tuning, will cost more.

Related terms

• Manual transmission (manual transmission)

Spare parts and repair kits

AvtoVAZ does not offer ready-made repair kits for repairing gear selection mechanisms: you can purchase a repair kit for the Priora gearbox rocker from third-party manufacturers or assemble them yourself.

List of parts for each box that most often fail:

Installation of the backstage from "Kalina"

The collector in a car is

Replacing the VAZ 2110 gearbox shifter On a VAZ 2110 you can successfully install a Kalina shifter:

• To do this, it needs to be modified a little.
• The cardan from the new model is 20 mm longer than the original “tenth”.
• Therefore, it needs to be cut, to do this, use a lathe.

Note: when cutting manually, you can ruin the part, since when the temperature of the metal increases, it loses its strength.

• The replacement of the slide must be carried out in the garage from the inspection hole.
• Remove the plastic tunnel from the car interior.
• Also remove the boot.
• Remove the old rocker, unscrew all the fasteners from under the bottom of the car.
• Install a new link and adjust it.

Note: adjustment must be carried out in order to later avoid troubles that arise during operation of the vehicle.

Why is it recommended to install a cardan from the new Kalina? On VAZ-2110 models, universal joints made of less resistant material are installed, so they quickly fail. This causes premature play in the rocker, which usually affects the quality of gear shifting while the vehicle is moving. After purchasing a new link, a visual comparison should be made of the old cardan and the purchased one.

The comparison will be entirely in favor of the new acquisition. The Kalina cardan is made of better quality material, it is much more wear-resistant.

Gearbox rockers for VAZ 2110 After installing a new gearbox, the lever may rattle. Since this link completely eliminates play, that is, the vibration is transmitted completely to the lever.