07/09/2021 17,574 VAZ Chevrolet Niva
Author: Ivan Baranov
Every car, sooner or later, may face the need to repair its transmission. And this article will help those who want to dismantle the box with their own hands, but are not ready to pay money for it at a service station. Below we will look at how the Niva Chevrolet gearbox is removed and what is needed for this.
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In what cases is this procedure necessary?
Before disassembling the gearbox, it is worth studying its structure, which will simplify the process of repairing it.
The checkpoint consists of:
- nuts that secure the support plate;
- gasket located in the hatch cover;
- gearbox control drive rods;
- lever handles that change gears;
- lever hatch covers;
- the gear shift lever itself;
- sealing cover;
- gear shift cover;
- the screw that secures the hatch;
- rear support;
- the lower and main bodies of the lever, which changes gears;
- washers on the rear support;
- nuts that secure the rear support;
- retaining ring;
- spacer ring;
- ball joint housing and slider;
- lever springs;
- nuts that secure the ball joint housing;
- rod end;
- protective cover;
- base plate;
- gearboxes
A manual transmission is a self-sufficient design element that does not require frequent maintenance. If the vehicle is used properly, the gearbox will last for several years. Thanks to the universal development of the mechanism, the off-road ambitions of the crossover are ensured. The transmission is characterized by resistance to increased loads.
It is necessary to dismantle the gearbox when the metal wears out and wears out. If the gearbox is subject to high loads, it overheats and expands, which causes wear.
It is recommended to remove the part:
- if necessary, replace the entire mechanism - this reason is rarely observed, since the part is subject to repair (replacement is recommended if the gearbox housing is damaged);
- for maintenance - if there is a need to clean components or replace consumables (links, gaskets, seals), then you need to remove the part;
- when carrying out repair work on other parts, to access which you need to remove the gearbox.
If transmission fluid leaks through the seals, it is recommended to remove the device. This procedure is carried out if the clutch needs to be replaced. Removal is carried out if the speeds begin to turn off on their own. They can turn on if the car owner makes an effort.
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Removing and adjusting the gear selection control drive Niva Chevrolet
We carry out the work on an inspection ditch or overpass.
Remove the intermediate shaft (see “Removing the intermediate shaft,” p. 196).
We remove the floor tunnel lining (see “Removing the floor tunnel lining”, p. 331).
Using a 17mm wrench, unscrew the nut securing the gear selection mechanism control drive to the rear support.
Under the nut there are spring and flat washers, as well as a spacer sleeve.
Having unscrewed the nuts securing the rear support of the unit, lower the rear end of the box (see “Replacing the supports of the power unit”, p. 121).
Remove the rear support for the gear selector control drive.
Install the drive in reverse order. We move the transmission control drive rod to the neutral position.
When installing the drive, hold the gear shift lever in the position determined by the following dimensions (in mm): D = 1.5 ± 0.5; E = 1± 0.5; (see Fig. “Gear selection mechanism control drive” p. 178). In this position of the lever, tighten the torque control drive rod clamp bolt to 24.5 Nm (2.5 kgf-m).
Sheviniva. backstage repair
While driving through the forest, a joint popped out of the rocker and we had to drive home in 3rd gear...
Backstage adjustment
The rocker on Chevrolet Niva SUVs has a long service life, equal to more than 100 thousand km. But this resource depends, at first, on the integrity of driving, so from time to time drivers may notice malfunctions in the operation of the gearbox, such as:
- When you try to engage first gear, it switches to reverse;
- 5th speed disappears when it is turned on;
- Reverse gear is engaged when selecting forward 5 gears.
This indicates a malfunction of the drive rod, but do not rush to remove the gearbox and repair it, as you can try to adjust the product. Although adjustment is a rather complicated task, it is simpler and cheaper than changing the box or link.
Adjusting the backstage contains the following actions:
- The gearbox is engaged in 1st gear. To turn it on, you can start the engine and move the gearbox lever until the car starts moving. Afterwards, the engine is turned off, gear 1 remains on, and shoes are placed under the wheels. Don't forget the handbrake.
- 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 last left position until it stops.
- After this, you should go down into the pit again, but tighten the loosened clamp bolt.
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How to Remove the Rocker on a Chevrolet Niva
Continuing our study of the Russian Chevrolet Niva SUV, which is a relative of the VAZ family of cars, we will pay attention to such a detail as the rocker. What is it and where is it located? Probably, every current driver often heard while studying at a driving school about how the instructor “swears” at the obsolete stage when he changes gear. Yes, indeed, the rocker is a part of the box that performs an important function, but in the Chevrolet Niva there are two such devices: one rocker is used to change gears, and the other is used to switch transfer case modes. But this is practically what this material will say.
READ How long does it take to change brake pads?
"The Scene Squeeze Process"
In this video you can look at the process of compressing the backstage of a Chevrolet Niva.
How to choose a new backstage?
Which rocker to install on Niva Chevrolet ? This question came to the mind of every Niva car owner who had to deal with a malfunction of this element. In fact, there is nothing difficult in choosing a component.
Therefore, when choosing a mechanism, you should not “be fooled” by the stories of handicraft “garage” craftsmen and come up with a new headache for yourself. For installation in Chevrolet Nivas, it is better to purchase a standard rocker, which is equipped with basic models of Niva cars.
Necessary tools and preparatory work
Instructions for removing the gearbox require preliminary preparation of tools.
For repairs you will need:
- wrenches for bolts sizes 17, 13, 12, 10;
- hexagons in a set of 12;
- slotted and Phillips screwdrivers;
- pliers.
Pre-prepare a container into which the used oil will be collected. You need to find a stand or hanger to support the gearbox. To remove the part, it is recommended to use a special lift or place the vehicle on an inspection hole.
To eliminate the risk of a short circuit when dismantling the part, it is recommended to first disconnect the battery. Preparatory work requires setting the vehicle to the parking brake. When using an inspection pit for work, it is necessary to block the wheels with shoes.
Reasons for withdrawal
Everyone knows that the gearbox on cars is the most unpretentious product, but only if you handle it correctly. Let's start from the beginning: the Chevrolet Niva is an all-wheel drive SUV, which, from the very design, was prepared for a track with various types of obstacles. In the video, but you can easily do everything yourself to replace the front struts. Overcoming obstacles means loading the car, and many problems arise from the loads and overloads of the vehicle, in particular, parts of the engine, gearbox, clutch, etc. fail.
Thus, the reasons for dismantling the gearbox may be as follows:
- Removal for subsequent replacement of the entire mechanism. But it’s immediately worth noting that a new box is installed only if the old one is completely unusable. But this doesn’t happen often, only on cars with high mileage.
- For carrying out repair and cleaning work. This work may include: replacement of failed components, gaskets, scenes and other products. replacing the timing chain on a 1.2 Skoda Fabia engine. Brief content and do-it-yourself repairs without using special tools my page in. Chevrolet Niva car. Gearbox on a Chevrolet Niva. On the Chevrolet field with your own hands. It all depends on what was disabled.
- When carrying out repair work on other vehicle components, if the gearbox interferes with these activities.
Procedure for removing the gearbox on a Chevrolet Niva
Before removing the gearbox, the oil contained in it is drained. On average, a part holds from 1.7 to 2 liters of liquid. You need to prepare a container that has a wide neck and sufficient volume. On the body of the device there is a box that is unscrewed with a hexagon and is intended for draining the oil.
The gearbox contains viscous fluid that must be drained for at least 10 minutes. During this period, no additional work is carried out. To ensure high-quality drainage of oil from the gearbox, it is recommended to warm up the engine for 5 minutes before carrying out the operation, which will speed up the process of its movement through the channels.
Further work is performed in accordance with the step-by-step instructions:
- Before disassembling the box, it is recommended to clean the plug, which contains dust and grease residue. Experts recommend replacing the O-ring first. After that, it is installed in place and screwed until it stops.
- At the next stage, the cardan and intermediate shafts are removed.
- The wiring from the reversing headlight device is disconnected.
- To change the gearbox, you need to climb into the vehicle interior and use a screwdriver to pry off the gear selector cover. For convenient work, it is recommended to first move the cover up.
- On the support plate of the equipment with which the speeds are switched, there is a fastening nut that is unscrewed.
- The handle is unscrewed from the gear lever. It and the protective cover are dismantled.
- Using a wrench, unscrew the fastener, which is located on the gearbox support plate.
- The rear support on the gearbox is removed and the clamping screw on the rod mounting clamp is unscrewed.
- The support plate bracket is secured with three screws that must be removed to allow the transmission drive to be removed.
- Use wrenches to unscrew the screws securing the shield, which is located on the clutch housing. The bolts cannot be lost, so they are set aside.
- The working cylinder is secured to the crankcase with screws that can be unscrewed, allowing for convenient removal of the crankcase itself. During the procedure, it is not recommended to remove the pipe from the part. The clutch cylinder must be on the pipe.
- Unscrew the three starter mounting screws and set them aside.
- The anti-roll bar and exhaust pipe are dismantled.
- Use a wrench to unscrew the bolts securing the clutch housing to the car engine. Disassembly requires the help of a second person to hold the motor from behind to prevent it from falling.
- The gearbox and crankcase are removed from the vehicle at the same time. When performing work, make sure that the input shaft does not rest on the clutch spring petals. When the springs become deformed, the pressure plate is replaced.
How to remove the Niva Chevrolet gearbox lever?
Mechanism malfunctions
If, after the procedure for regulating the traction of the Niva Chevrolet transmission, subsequent malfunctions are identified, which appear in the form of:
- the free play of the gearbox lever increases;
- difficulty changing gears;
- speeds are turned on tightly;
- Engaging in the wrong gear or inability to switch gears.
If such problems are identified, there is a need for more severe repair work or replacement of the scenes. But to be able to carry out such actions, the device must be removed .
