Repair of the gearshift mechanism of the gearbox (scene) Niva Chevrolet - Niva Chevrolet (VAZ 2123, Chevy)

How to remove and replace?

To replace the Chevrolet Niva rocker you will need:

1. Set of heads ½.
2. Spanners, open-end or ratchet wrenches for “10”, “13”, “17”, “19”
3. Screwdriver Set

The rocker on a Niva Chevrolet SUV is removed in the following order:

1. Be sure to disconnect the negative terminal of the battery under the hood.
2. Set the gearshift lever to the middle position.

3. In the cabin, the lining of the instrument panel console is dismantled. We unscrew all the fastening bolts of the plastic panels, remove the ashtray, the glove box with cup holders, and then lift up the entire lining of the floor tunnel.

4. We remove the gearshift lever and transfer case linings using a screwdriver.
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5. Unscrew the front driveshaft from the drive shaft. We tie the removed part to a convenient place on the body.

6. Unscrew and dismantle the intermediate shaft. To do this you will need keys for “13”, “19”.

7. To make the work more convenient, use a “13” wrench to remove the two nuts securing the cross member of the rear gearbox suspension to the underbody. It will go down a little, thereby increasing the space for dismantling the required unit.

8. We unscrew the nut securing the gear shift drive from the rear drive support using a socket “17” with an extension. Also, together with the nut, it is necessary to remove the expansion sleeve and 2 support washers.

9. Using a ring ratchet wrench set to “13”, loosen the tension clamp of the drive rod.

10. Using a “13” socket with an extension, unscrew the three fastening nuts securing the gear shift control drive bracket to the rear cover of the box.

11. We take out the rocker assembly along with the lever and bracket.

12. We remove the speed selection mechanism using a “10” wrench and unscrew the 3 nuts securing the housing.

13. We remove the entire mechanism assembly.

Installation of the drive after repair or replacement is carried out in the reverse order.

Advice! You should not independently modify (overcook, shift, lengthen or shorten) the factory design.

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As a replacement for the unit, it is better to purchase a standard rocker, which is equipped at the factory with basic vehicle models. After installation, it is recommended to additionally treat all moving joints with modern grease Mobilgrease XHP™ 220 or conventional Litol-24.

Auto & Chevrolet Niva & Chevrolet Niva backstage adjustment

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Chevrolet Niva is the successful result of fruitful cooperation between Russian and American engineers. The car is ideal for use in Russian conditions. He is not afraid of bad roads or sudden changes in temperature. The Chevrolet Niva has a spacious, roomy interior and a powerful 1.7- or 1.8-liter engine with distributed fuel injection. The Chevrolet Niva all-wheel drive car can be used as a representative city or country car for trips into nature. High quality workmanship and low cost have made this comfortable car a sales leader in Russia.

A new passenger five-seater SUV, replacing the popular VAZ all-terrain vehicle. The conceptual solutions he inherited from the Niva - a monocoque body, permanent drive of all wheels - are combined with a number of innovations. Adjusting the Chevrolet Niva backstage Among them is a five-door body with glued glass; a trunk door that opens to the side; engine with distributed fuel injection; electric power steering, powerful heater.

The chassis and transmission of the old Niva have remained virtually unchanged structurally - modernized, life-tested units have been used. Here is a list of modifications to the Chevrolet Niva: the front axle gearbox is “decoupled” from the engine; The design of the gearbox drive has been changed; extended intermediate shaft; the transfer case has fine-meshing gears; front and rear driveshafts are unified.

Perhaps the only modification that still won its right to life. Although with significant changes and with the participation of a foreign company. Although initially everything looked quite tempting. And here's what happened at first...

The base model of the new Chevrolet Niva family is a car with a five-door station wagon and a 1.7-liter gasoline engine equipped with an electronically controlled distributed fuel injection system.

Main design features: the engine is located longitudinally in the front of the machine; permanent all-wheel drive with center differential lock; five-speed manual transmission; two-speed transfer case; electric power steering; fifteen-inch wheels shod with 205/75R15 tires. Adjusting the Chevrolet Niva rocker In addition to the base engine, there are three more. Two of them are gasoline engines of the VAZ-21231 and VAZ-21233 models. Well, the third is a real surprise from VAZ - the domestic turbocharged diesel VAZ-3431. Moreover, for truck versions of vehicles, the diesel engine was supposed to become the base one.

Make sure that nothing prevents you from grabbing the handbrake handle at any time, you never know. But boxes of juice, tape cassettes, the hem of your companion’s lovely dress can get in your way.

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Design and principle of operation

The Chevrolet Niva transmission includes the following components:

• A five-speed manual gearbox allows you to change not only the amount of torque, but also the direction of rotation.
• Split front axle with a gearbox mounted on the power elements of the body.
• Dry single-plate clutch, which, when the pedal is pressed, briefly disconnects the transmission from the engine.
• Solid rear axle, into which the gearbox and differential are integrated. This allows you to increase and distribute torque between the wheels of the same axle.
• The intermediate shaft through which torque is transmitted from the gearbox to the transfer case.
• Transfer case that distributes rotational energy between axles.
• Two cardan shafts transmitting power to the axles (front and rear).
• Constant velocity joints that drive the steering wheels.

It works like this: engine torque is transmitted to the manual transmission through the clutch, then through the intermediate shaft to the transfer case and a pair of drive axles.

Malfunctions

The most common causes of malfunction:

• the backlash and vibration of the gearshift lever has increased;
• 5th speed goes out or reverse gear is engaged;
• It is difficult to engage reverse;
• fuzzy long-term switching of speeds.

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Reference! Vibration of the gearshift lever is the most common problem that occurs in many vehicles when the internal combustion engine is running in the range of 2500 - 3500 rpm.

The design of the rocker and its purpose on the Niva Chevrolet

In technical language, the word “link” means the gearbox drive rod. This is a complex mechanism and is designed to connect the gearshift lever in the cabin and the rod of the gearbox itself. In the interior of the Niva Chevrolet there is a backstage located near the gearshift lever, and therefore it is quite easy to find it.

Reverse gear is difficult to engage

On modern domestic SUVs, which is the Chevrolet Niva, the rocker life is quite large. It has to be changed on average after 100,000 kilometers. But the resource can be greater. It all depends on the accuracy of the driver and the operating conditions of the vehicle.

If the rocker fails, the driver will notice the following:

• It is impossible to engage first or reverse gear.
• The fifth speed may disappear when turned on.
• Reverse gear is engaged if the driver wants to engage one of the front ones.

The presence of such moments indicates that the backstage is out of order. It is recommended not to rush to remove the gearbox itself and carry out repairs. This may simply require adjustment of the rocker itself. Despite the fact that such a task is quite troublesome, it is less expensive than repairing or replacing the entire gearbox.

After such actions, the work of adjusting the scenes can be considered completed. All that remains is to test it in action. When such measures do not bring the required result, the product will need to be removed and repaired.

Reverse gear slips out

If, after adjusting the rocker, the driver observes other malfunctions, for example:

• problem with engaging reverse gear,
• lever stroke increased,
• reverse gear goes out,
• speeds turn on noisy and tight,

then the backstage will need to be replaced.

Do-it-yourself gear shift assembly adjustment

To correctly adjust the gear selection mechanism you will need a 13 key

Sequencing:

1. We start the engine, engage 1st gear. As soon as the car starts to move, we stop and turn off the engine. In this case, we leave the first gearbox speed in the ON position. We put the car on the handbrake and anti-rollbacks.
2. We loosen the coupling bolt of the clamp securing the connecting rod of the gearbox under the body. For ease of work, you can use a lift, overpass, pit or jacks.
3. We move the plastic traction lock located in the passenger compartment all the way to the extreme left position.
4. Then we fix the loosened bolt of the mounting clamp back.

You can also try one more method to eliminate rattling and play in the gearbox handle: using a “13” wrench, you need to tighten the lever fastening nut until the axial play is eliminated.

Important! The permissible clearances of the drive unit must correspond to the following values ​​in millimeters: D = 1.5±0.5; E = 1±0.5.

The lever nut must be tightened to a torque of 24.5 Nm (2.5 kgfm).

If, after the adjustment has been made, the same difficulties with gear shifting and vibration remain, this means that this unit is worn beyond the permissible norm and needs to be replaced.

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The conceptual solutions he inherited from the Niva - a monocoque body, permanent drive of all wheels - are combined with a number of innovations. Adjusting the Chevrolet Niva backstage Among them is a five-door body with glued glass; trunk door opening to the side; engine with distributed fuel injection; electric power steering, powerful heater.

The chassis and transmission of the old Niva have remained virtually unchanged structurally - modernized, life-tested units have been used. Here is a list of modifications to the Chevrolet Niva: Perhaps the only modification that has finally won its right to life.

The exception is the inclusion of rear and fifth speeds, but on rear- and all-wheel drive vehicles of the VAZ family this order is always the same. So, let's look at the location of all the gears in the box and how they are engaged.

Below is a diagram that will make it easier to understand. In order to reduce fuel consumption on a Shniva, you just need to slip, forward, backwards. You can’t turn on the rear. Come on, off into the wilderness, shouting “not Russian Chevrolet Niva, adjusting the gearbox slide, I put chains on all wheels.

We managed to switch on some gear, and, accordingly, it was liquefied. Like riding a tractor!!! I arrived at an open field.

Without a flashlight, but to an advantage with a key of 13, tighten the clamp.

And figs there!!! Don't forget the handbrake.

SUV rocker

Lower into the overpass and loosen the bolt of the rocker clamp. Inside the car we find a plastic traction lock and move it to the extreme left position until it stops. After this, you should go down into the pit again, but tighten the loosened clamp bolt. At this point, the gearbox thrust adjustment is completed, and you can check its performance.

If the adjustment does not help, then the product will need to be removed and repaired.

View from the interior Mechanism malfunctions If, after the procedure for regulating the traction of the Niva Chevrolet gearbox, further malfunctions are identified, which manifest themselves in the form of: If such problems are identified, the need for more serious work arises - repair or replacement of the rocker.

But to be able to carry out such actions, the device must be removed. Removing the gearbox linkage You can remove the linkage in the following sequence: Having opened the hood of the Chevrolet Niva, you need to find the connection between the tip of the lever and the gearshift linkage.

Having installed the retaining ring in the groove on the outer ring of the bearing, check the ease of rotation of the input shaft. Install the intermediate shaft into the gearbox housing, having first installed the shift forks for 1st and 2nd, 3rd and 4th gears, the rod clamps and the rods themselves.

Install the front and rear bearings of the intermediate shaft Chevrolet Niva adjusting the gearbox rocker using a mandrel, applying force to their inner rings. Do not forget to install the key in the groove of the secondary shaft if it was removed during disassembly. Tighten the bolt securing the front bearing of the intermediate shaft with a torque wrench, simultaneously engaging two gears. .

We repair and replace the scenes on Niva Chevrolet

Lubricate the working surfaces of the gears and the annular grooves of the synchronizer clutches with oil. Having installed the clutch housing on the assembled gearbox with the front and bottom covers installed, as well as the cross-member for mounting the power unit, tighten the nuts securing the clutch housing to the gearbox with a torque wrench. Before installation, lubricate the inner surface of the clutch release bearing clutch with grease.

After final assembly of the gearbox, place the driven clutch disc on the splines of the input shaft and check the ease of movement of the disc along the splines of the shaft. After installing the gearbox on the car, do not forget to fill the crankcase with oil. Adjusting the gear selection mechanism drive of the Chevrolet Niva To adjust the rocker of the Niva Chevrolet, you will need a key to Loosen the nut of the coupling bolt of the clamp securing the gear selection mechanism drive rod.

By moving the drive rod relative to the shaft of the gear selection mechanism in the longitudinal direction, ensure that all gears are clearly engaged. Tighten the clamp bolt nut. Tell your friends:

Repair of the gearshift mechanism of the transmission (slide) Niva Chevrolet - niva chevrolet (VAZ 2123, Chevy)

See also Disassembly and assembly of the gear selection mechanism drive)

2. Remove the clamp from the mechanism rod.

4. Knock out the rod joint axis.

8. Remove the protective cover of the mechanism housing and the spring.

10. ... sealing rings. Replace rings if necessary.

12. Unscrew the three nuts securing the gear selector flange.

14. Remove the guide plate washer.

Video

Changing the oil in a Chevrolet Niva gearbox

According to the service book, the oil in the Niva Chevrolet box needs to be changed after 45 thousand kilometers
, and it is recommended to drain the old transmission oil within 15 minutes after the trip, until it has cooled down and is relatively liquid. To change the oil in the gearbox you will need: a 17mm wrench, a 12mm hexagon and a container for draining the oil.

To make draining easier, remove the oil filler plug and drain plug and drain the oil. Clean the drain plug of dirt and metal particles and screw it back into place. If the drained oil is heavily contaminated or contains mechanical impurities, flush the Chevy Niva gearbox: pour 0.9 liters of flushing oil into the crankcase and install the oil filler plug in place; lift one or both rear wheels, engage 1st gear and run the engine for 2-3 minutes; drain the flushing oil; Wipe the oil drain plug and reinstall it. Fill the gearbox housing with fresh oil using a syringe (or the device shown in the photo). Fill with oil to the level of the oil filler hole of 1.6 liters. Reinstall the oil filler plug of the Shiva Chevrolet gearbox. The transmission oil change is complete.

The presence of a low gear on the Chevrolet Niva ensures efficient movement over rough terrain. To turn it on, the motorist must move the lever to the right and up on the selector. See also: Chevrolet Niva all-wheel drive operation

Node device

On older models, this unit is located under the bottom of the car, thereby being exposed to increased contamination and moisture.

The design of the gear shift mechanism does not have complex connections, the work is carried out without much load, but owners often encounter wear and tear on this unit.

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Comments and reviews

But no one is immune from the breakdown of this unit. How to determine the need for backstage repair?

This can be done due to several factors: An old element of the transmission system that has exhausted its service life. In the event that the speeds become very difficult to switch on or the wrong speed is switched on, then you can try to adjust the mechanism. Before installing the seals, they will need to be lubricated with Litol. This completes the repair of the product; all that remains is to assemble all the parts in the reverse order of removal.

Once assembly is complete, don't forget about the new clamp that had to be cut when removing the cover. And a few words about the transfer case rocker The transfer case rocker performs similar functions to a boxed product, only the speed mode shift lever is not used as often as the transmission.

From this it follows that the transfer case rod has a much longer service life. If similar problems are noticed as in the gearbox, then it is worth replacing the transfer case, since its mechanism does not allow repair or replacement. Based on all that has been said, the gearbox and transfer case are important elements of the Chevrolet Niva, without which it is impossible to engage gears.

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Chevrolet Niva gearbox lever play

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