DIY VAZ 2104 steering column repair

In detail: do-it-yourself repair of the steering column of a VAZ 2104 from a real master for the site my.housecope.com.

Welcome!
Steering gear - if you go to a car shop and buy it new, then it won't take so much money, if you go to a service and ask to be repaired, then you will also give a lot of money easier to buy a new one right away, so many people prefer to do it something yourself, especially when you do some work yourself, you can be 100% sure that nothing will break in a short time (of course, if the work was done correctly).

Note!
In order to repair the control gearbox, you need tools, namely: Wrenches (Set), you will also need a screwdriver, hammer, barbs, and we also recommend that you find some kind of mandrel or pipe segment, but what size the mandrel and pipe segment should be , you will only know when you remove the gearbox from the car!

Summary:

Where is the steering gear located?
It is located in the engine compartment and immediately under the vacuum brake booster (indicated by the blue arrow); for clarity, you have already seen that in the photo it is shown with a red arrow, so you should not have a problem with finding it, but only this gearbox can to be in your dust and dirt and therefore you will not immediately find it, so bear this in mind.

When to repair the steering peductor?
The gearbox must be repaired if the threaded part on its shafts is damaged, and due to damage or severe wear of the threaded part of both shafts that are in the gearbox, the following problems with the steering may occur, namely the steering wheel can rotate and have a backlash, in addition, the steering the wheel can rotate, but the wheels themselves do not, as well as the steering wheel can simply lock in one place and will stand still without moving anywhere, oil can still flow from the steering gear, but this will already happen for several reasons, namely if the gearbox housing is damaged and has through cracks (for example, after corrosion, this can be), also if something happened to the oil seals, then the oil will also constantly flow out of the gearbox and, in this regard, the steering wheel will spin harder (if the oil will all leak out) and on the case or below on cars, you will also constantly notice traces of oil leaking from the gearbox.

Video (click to play).

How to repair the steering gear, it is the steering gear, it is the steering column on the VAZ 2104, VAZ 2105, VAZ 2107?

Disassembly:
1) At the very beginning of the operation, you will need to remove it from the car, since it will be much more difficult to repair the gearbox if it is installed on the car, and there is nothing to it. (About how to remove the gearbox, read in detail in the article titled: "Replacing the steering gear on a car")

2) Now, when the gearbox is removed, take and put it on a clean surface, then take a wrench and use it to completely unscrew the nut that secures the bipod to it as shown in the photo below:

3) Then, using a special puller, press (If this word is not familiar to you, then you can read the word: "Remove" instead) the bipod from the shaft on which it is put on, for this you will first need to install the puller on the bipod as shown in photo, after installation, the consequence of tightening the bolt that is indicated by the red arrow will start to slowly remove the bipod, and all this will happen due to the fact that the bolt will press on the tip of the shaft (indicated by the blue arrow) and thus the bolt will, as it were, wrap into this tip and the bipod in this regard will be slowly removed.

Note!
If you do not have such a puller and you do not need to purchase it, since you do this procedure very rarely, then you can use two hammers and use them to knock down the bipod, for this we rest the tip of the shaft (indicated by the red arrow) on a wooden block and put after that, there are two hammers on the bipod, choose one of the hammers so that it is large, you can even take a sledgehammer, and take the other hammer the most common one and then start to press on one of the bipod stops with a large hammer, and hit the other bipod stop with a regular hammer and so on the way the bipod will be removed!

As a last resort, if you do not feel sorry for the bipod, then you can cut it off with a cutting machine, but you only need to cut it off in the place where it is fastened to the shaft itself, but when cutting off, do not touch the shaft itself, otherwise it will have to be replaced with a new one !

4) After that, when the bipod is removed, you will need to drain the oil from the steering gear, how to do this, read the article called: "Replacing the transmission oil in the steering gear for a VAZ".

Note!
This article, which is linked to, shows how to drain the oil on the installed gearbox, but you have it removed, but this does not play a big role!

5) Next, take a wrench and use it to unscrew the four bolts (indicated by arrows) that attach the top cover to the steering gear and after they are turned out, remove it as shown in photo 2.

6) Next, grasp the shaft with your hand on which the bipod was put on and then remove it from the gearbox (it will be more correct from the crankcase) together with the roller that is on it.

7) Now we turn to the worm shaft, in order to remove it, it will be necessary to unscrew the four bolts that secure its cover with a wrench, and after the bolts are unscrewed, remove the cover that covers the worm shaft and remove in addition all the gaskets that will be located behind the cover (see photo under number 2).

Note!
These ball bearing adjusting gaskets are sold in car dealerships with a thickness of 0.1 and 0.15 mm!

8) Then, picking up a hammer (preferably made of soft metal, and if it is not there, then put a small plank under a regular hammer when you hit the worm shaft, so as not to damage or deform the shaft itself with blows of a conventional hammer), carefully knock out with the help of it, the worm shaft from the gearbox housing together with the bearings that are located on it.

9) Then, using a screwdriver, remove the two cuffs (both are removed in the same way, so the example in the photo is shown only on the cuff that goes to the worm shaft), one of them will need to be removed, which goes to the worm shaft, and the other that goes to the shaft to which the bipod is installed.

10) Next, using a bit and a hammer, knock out the outer race of the second bearing as shown in the figure.

Assembly:
1. Basically, all the parts are assembled in the reverse order of their removal, and all internal parts are lubricated before assembly with gear oil, in addition, when assembling, you need to know what nuances, firstly, always remember that the bipod is installed on the shaft in only one position , that is, if you look at it there is a wide groove on the bipod, this very groove on the bipod should coincide with the double slot that is located on the shaft and which are indicated in the photo below with a screwdriver.

2. Secondly, if you decide to change the shaft on which the bipod is installed, pay your attention to the screw head (indicated by the blue arrow) and to the groove that is present on the shaft itself (it is still indicated by the red arrow), and so the axial clearance between the shaft groove and the screw head must necessarily be no more than 0.05 mm, so you have to adjust the axial clearance when installing a new shaft, and it is adjusted by selecting the thickness of the adjusting plate.

Note!
For clarity, so that you have at least some idea of what an adjustment plate is, it was indicated in the photo below with a red arrow, in total these plates have eleven sizes and a thickness from 1.95 to 2.20 mm, an increase in each size is 0.025 mm!

3.Thirdly, when you install the inner ring of the bearing, it is installed using a piece of pipe, that is, a section of a suitable diameter is found and then a hammer is taken, then with their help and not very strong hammer blows, we press the inner ring of the bearing into the crankcase.

Note!
When the inner ring (indicated by the blue arrow) is installed, then install a cage with balls (indicated by the red arrow) in it, and after installation insert the worm shaft (indicated by the number 11) onto which you will then need to put on the cage of the outer bearing (indicated by the number 6) and with a hammer (not with strong blows) press in the outer ring, which is indicated by the fifth digit!

4. And finally, you will need to install the cover and all the gaskets and then press in both cuffs (They are also called oil seals) with a hammer and a piece of pipe, while one cuff is a worm shaft cuff and the other is a bipod shaft, but before put them, lubricate them with Litol-24 grease or something like it.

Note!
When install the worm shaft, use a set of shims (the gaskets are indicated by number 4 in the photo above) so that the torque of the worm shaft is from 2 to 5 kgf • cm, then replace the shaft on which the bipod is put on and adjust the engagement gap by the moment of turning the shaft (This gap should be within 7-9 kgf • cm, and when the worm shaft is turned 30 ° to the left and right, it should smoothly decrease to 5 kgf • cm)!

What else, when all the operations are completed, pour gear oil into the gearbox housing, up to the lower edge of the filler hole, this is about 0.215 liters!

Additional video clip:
If you want to learn how the steering gear is repaired, then watch the video below.

Note!
There is very little video information on the Internet on disassembling and assembling the steering gear of VAZ 2104, VAZ 2105, VAZ 2107 cars, but there are detailed instructions for disassembling the gearbox of an UAZ car, gearboxes from VAZ and UAZ are not much alike among themselves (They have a different shape, but although both there and there there is a worm shaft and a shaft on which the bipod is put on), so check out this video for instructions on disassembling the steering gear, it will most likely come in handy!

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Carefully inspect for any signs of wear, binding, dents or marks on the running surfaces of the roller and worm. Replace worn and damaged parts.

The size of the gap between the bushings and the bipod shaft, which should not exceed 0.10 mm. If the clearance is greater than the specified, then replace the bushings using a mandrel A.74105.

On the inner surface of the bipod shaft bushings of the VAZ 2105 there are spiral grooves that extend only to one side of the sleeve. When pressing in the bushings, position them so that their ends, which have grooves coming out, are inside the hole in the crankcase of the VAZ 2107, and the grooves' outlets are opposite each other. The ends of the bushings should sink into the crankcase bore by 1.5 mm.

Lubricate new bushings with gear oil before pressing.

After pressing into the crankcase, finish the bushings with a reamer A.90336 to a size of 28.698–28.720 mm. The mounting clearance between the bipod shaft and the bushings should be within the range of 0.008–0.051 mm.

Check the ease of rotation of the bipod shaft roller on the ball bearing.

The ball bearings of the VAZ 2104 worm and the roller should rotate freely, without jamming, and there should be no wear or damage on the surface of the rings and balls.

Lada classic steering box details
1 - crankcase
2 - bipod
3 - lower crankcase cover
4 - adjusting shims
5 - outer ring of the worm shaft bearing
6 - cage with balls
7 - bipod shaft
8 - adjusting screw
9 - adjusting plate
10 - lock washer
11 - worm shaft
12 - upper crankcase cover
13 - sealing gasket
14 - bipod shaft sleeve
15 - worm shaft oil seal
16 - bipod shaft oil seal

Axial clearance between the head of the adjusting screw 8 and the groove of the bipod shaft 7. The clearance should not exceed 0.05 mm. If it is larger, replace the shim 9 with a thicker one.

Steering parts
1 - steering gear housing
2 - shaft seal
3 - intermediate shaft
4 - upper shaft
5 - fixing plate of the front part of the bracket
6 - steering shaft mounting bracket
7 - the upper part of the cladding casing
8 - bearing sleeve
9 - bearing
10 - steering wheel
11 - the lower part of the cladding casing
12 - bracket fastening details

Condition of fixing plates 5. If they are deformed, replace them.

Spare parts are supplied in eleven sizes of shims, thickness from 1.95 to 2.20 mm; the increase in each dimension is 0.025 mm

One of the elements of the VAZ 2107, which has received a number of improvements in this model in comparison with the previous ones, is the steering column. What is the difference between her device? In the VAZ 2107, the steering column shaft consists of two parts, connected by a cross. Thanks to this design, the safety of the driver is significantly increased, since in the event of a collision, the shaft simply bends at the point of the articulated joint, and does not cause serious harm to humans. Also, the shaft in the VAZ 2107 acquired bearings, so that turning the steering wheel requires much less effort.

The steering column of the VAZ 2107 consists of a shaft with a swivel joint and a gearbox with a worm gear. Column repair is very rare. If you ensure timely maintenance of this unit, then it may never be needed. Steering column maintenance includes greasing the steering shaft joint, tightening the steering wheel nut, changing the oil and adjusting the gearbox. Let's take a look at the possible problems associated with the steering column and the methods of their elimination.

As a rule, squeaking occurs due to insufficient lubrication of the shaft parts - bearings or cross. It is treated with lubrication, does not cause special difficulties, repairs are not required.

There are two reasons for rudder play. First, the nut that secures the steering wheel to the shaft is released. Failure to tighten the nut in time will damage the splines on the handlebar and shaft, and one of these parts may need to be replaced. The second reason can be the wear of the worm gear. To eliminate this malfunction, a special device is provided - an adjusting bolt with a lock nut.

In order to adjust the worm gear, the nut is released, with a screwdriver the screw is turned until the backlash is eliminated, after which the nut is tightened to prevent spontaneous unscrewing. If it is impossible to eliminate the backlash by adjusting, then it is necessary to repair the gearbox and replace the worm gear pair.

To prevent premature wear of the gearbox parts, it is recommended to periodically check the oil level and change it. Level control is performed as follows:

Using a key 8, the filler plug is unscrewed;
Check the oil level with a screwdriver or other object. It should be flush with the bottom edge of the filler hole.
If necessary, add oil using a special blower until it starts to flow out of the hole.

To change the oil, unscrew the screws securing the gearbox cover, after placing a container under it to collect the used oil. Since complete removal of the cover is not required, it moves to the side and the oil is drained. This operation is best done with a hot engine. Warm oil is more fluid and drains faster. After all the oil has drained out, the cover is screwed into place and a new one is poured into the gearbox as described above.

The device of the gearbox does not allow repairing it without removing it from the car. In order to remove it, you must:

Disconnect the tie rod ends from the gearbox. First, they are cottered, then the nuts are unscrewed with a 22 key and the tips are pressed out using a special puller.
Unscrew the clamp securing the steering shaft to the gearbox.
Remove the three bolts that secure the gearbox to the vehicle body.

The device of the gearbox should not cause any particular difficulties during its repair. It should only be taken into account that worn-out elements, called a worm pair, both change at the same time. After this, adjustment is mandatory.

First you need to understand where the backlash occurs, since the backlash in the steering column can be in three places, such as.

Backlash in the steering tips (knocking fingers means they need to be replaced).

Backlash in the steering bipod (the working shaft has developed, to find out you need to pull the steering bipod itself from under the car).

Backlash in the steering worm (can be eliminated if there is a supply of nut).

And so you probably already figured out where the backlash occurs in the steering column, but today we will talk specifically about adjusting the backlash of the steering column VAZ 2107.
The first step is to put the steering wheel in a straight position so that the wheels are straight.

Then, with sharp jerks, pull the steering wheel to the left, to the right (this must be done in order to understand where the backlash is), after which, unscrew the locknut on the steering housing (be careful and do not damage).

Further, with direct hardening, you need to adjust the VAZ 2107 steering column worm itself.

How to adjust the steering column of a VAZ, there are only two adjustment options.

1. If you tighten then the backlash will disappear, but the steering wheel will also turn tighter as you tighten the steering shaft (to be more precise, the steering arm worm).

2. But if you unscrew a turn, then the steering wheel will turn softer and easier, but the backlash will not appear large.

Some motorists do not make a big backlash in the VAZ steering column themselves and advise doing the same, explaining it like this! - that in this way there is less wear of the steering worm itself and the working pair and the steering wheel turns softer, which is important. You can also tighten the steering worm at any time if the backlash becomes stronger.

Also, do not forget to monitor the transmission oil in the steering housing. To add oil, you need to unscrew the plug on the steering housing. The transmission oil level must be full.

If you need to take off steering column for VAZ then you can find out how this is done by the link, you can also read about how to replace steering column bearing VAZ.

I advise you to watch the video instructions for adjusting the steering column.

Steering is present in all cars, regardless of class and year of manufacture. The device must always be in good working order and it is forbidden to make any changes to it. A worm-type steering column is installed on the VAZ 2107 and other classic Zhiguli models, which needs periodic inspection and sometimes repair.

The steering mechanism of the VAZ "seven" has a rather complex design, which ensures reliable control of the car in different driving situations. The steering wheel is endowed with good information content, which eliminates driver fatigue when traveling long distances. There are some difficulties when turning the steering wheel while the vehicle is stationary. However, as soon as the car starts moving, the steering becomes less rigid and the handling improves.The steering mechanism has one nuance - a slight backlash, which is the norm. This is explained by a considerable number of parts in the gearbox and the presence of rods. After modernization, a VAZ 2107 began to install a safety column, which has a composite shaft. Its design consists of two universal joints that allow the shaft to fold in the event of an accident. In this way, injury to the driver is excluded. Image - DIY repair of the steering column of a VAZ 2104

The steering gear is designed to transfer the power from the steering wheel to the steering rods for turning the front wheels at a given angle

Before proceeding with the repair of the steering column, you need to familiarize yourself with its structure, as well as the principle of operation. The structure consists of the following main elements:

a unit designed to transfer the force from the steering wheel rotation to the actuators;
steering column, which turns the wheels to the desired angle.

The steering mechanism consists of:

composite shaft with cardan drive;
steering wheel;
a worm-type steering gear.

The structure has the following constituent elements:

pendulum;
swivel levers;
steering rods.

Steering design: 1 - steering gear housing; 2 - shaft seal; 3 - intermediate shaft; 4 - upper shaft; 5 - fixing plate of the front part of the bracket; 6 - steering shaft mounting bracket; 7 - the upper part of the facing casing; 8 - bearing sleeve; 9 - bearing; 10 - steering wheel; 11 - the lower part of the facing casing; 12 - bracket fastening details

Since the outer rods are in two parts, this allows for adjustment of the toe angle. The steering functions as follows:

The driver acts on the steering wheel.
A worm shaft is driven through cardan joints, by means of which the number of revolutions is reduced.
The worm rotates, which facilitates the movement of the double-ridged roller.
The output shaft of the gearbox turns.
A bipod is mounted on the secondary shaft, which rotates and carries along the steering rods.
Through these parts, a force is applied to the levers, thereby turning the front wheels to the angle required by the driver.

Bipod - the rod that connects the steering gear to the steering linkage.

As the vehicle is used, the steering column may experience malfunctions that require repair. The most common ones are:

oil leakage from the gearbox;
extraneous sounds in the mechanism;
a lot of force is required to turn the steering wheel.

The steering gear on the VAZ 2107 is located in the engine compartment on the left side under the vacuum brake booster. With insufficient experience, it may not be found at first glance, since it is usually covered with a layer of dirt.

The steering gear on the VAZ 2107 is located under the vacuum brake booster on the left side of the engine compartment

Due to constant friction in the steering mechanism, the elements are being depleted, which indicates the need not only for adjusting the unit, but also for possible repairs.

To dismantle the steering column on the "seven", you will need the following tools:

a set of keys;
crank;
heads;
puller of steering rods.

After preparing everything necessary, perform the following step-by-step actions:

The car is installed on a lift or a viewing hole.
Keeps dirt off the steering rod pins.
The rods are disconnected from the bipod of the gearbox, for which the cotter pins are removed, the nuts are unscrewed and the finger is squeezed out of the bipod of the steering device with a puller. By unscrewing the nuts, disconnect the steering rods from the bipod of the steering gear
The steering column is connected to the steering wheel by means of an intermediate shaft. Unscrew the fasteners of the latter from the gearbox shaft. To remove the steering column, you will need to unscrew the fastening of the mechanism shaft to the intermediate shaft
The gearbox is fastened to the body by means of three bolts. Unscrew 3 fastening nuts, remove the fasteners and dismantle the steering gear from the car. To make the assembly easier to remove, it is better to turn the bipod all the way into the column case. The steering gear is attached to the side member of the vehicle with three bolts

When the mechanism is removed from the vehicle, you can start disassembling it. Image - DIY repair of the steering column of a VAZ 2104

Steering gear housing details: 1 - crankcase; 2 - bipod; 3 - lower crankcase cover; 4 - shims; 5 - outer ring of the worm shaft bearing; 6 - separator with balls; 7 - bipod shaft; 8 - an adjusting screw; 9 - adjusting plate; 10 - lock washer; 11 - worm shaft; 12 - upper crankcase cover; 13 - a sealing gasket; 14 - bipod shaft sleeve; 15 - worm shaft oil seal; 16 - bipod shaft oil seal

From the tools you need to prepare:

standard set of keys;
head 30;
bipod puller;
vice.

The work is carried out in the following order:

After disassembling the steering gear, they carry out its troubleshooting. All elements are pre-cleaned by washing in diesel fuel. Each part is carefully examined for damage, scoring, wear. Particular attention is paid to the rubbing surfaces of the worm shaft and roller. The rotation of the bearings must be free of seizure. There should be no damage, as well as traces of wear on the outer races, cages and balls. The gearbox housing itself must not be cracked. All parts that show visible wear must be replaced.

Oil seals, regardless of their condition, are replaced with new ones.

When the defective elements have been replaced, you can start assembling the unit. Parts that are installed inside the crankcase are lubricated with gear oil. The assembly is performed in the following order:

Using a hammer and a guide or other suitable device, press the inner bearing race into the steering unit housing. The inner bearing race is pressed in with a hammer and a guide
A cage with balls and a worm shaft are placed in the cage. The outer bearing cage is placed on it and the outer cage is pressed in. After installing the worm shaft and the outer bearing, the outer cage is pressed in
A cover with gaskets is mounted and the worm shaft and bipod oil seals are pressed in. A small amount of grease is preliminarily applied to the working edges of the cuffs.
Place the worm shaft into the mechanism housing. Using the adjusting shims, the torque is set, its rotation is from 2 to 5 kgf * cm.
Install the short thrust shaft.
At the end of the work, grease is poured into the steering column and the plug is wrapped.

Installation of the unit on the machine is carried out in the reverse order.

The adjustment work of the steering gear on the VAZ 2107 is resorted to in the case when the steering wheel began to rotate tightly, jamming appeared during rotation, or when the steering shaft was moved along the axis with straight wheels.

To adjust the steering, you need to know which element is responsible for what

To adjust the steering column, you will need an assistant, as well as a 19 key and a flat screwdriver. The procedure is carried out in the following sequence:

The machine is installed on a flat horizontal surface with straight front wheels.
Open the hood, clean the steering gear from contamination. The adjustment screw is located on top of the crankcase cover and is protected by a plastic stopper, which is pry off with a screwdriver and removed. Remove the plastic plug before adjusting the gearbox.
The adjusting element is fixed with a special nut against spontaneous unscrewing, which is loosened with a 19 key. To prevent the adjusting screw from loosening spontaneously, a special nut is used
The assistant begins to intensively rotate the steering wheel to the right and left, and the second person with the adjusting screw achieves the desired position in the engagement of the gears. In this case, the steering wheel should rotate easily and have a minimum free play. Adjustment is carried out by turning the adjusting screw with a screwdriver
When the adjustment is complete, hold the screw with a screwdriver and tighten the nut.

To reduce the friction of the internal elements of the steering column, gear oil GL-4, GL-5 with a viscosity grade of SAE75W90, SAE80W90 or SAE85W90 is poured into the mechanism. In the old fashioned way, for the node under consideration, many car owners use TAD-17 oil. The filling volume of the gearbox on the VAZ 2107 is 0.215 liters.To avoid premature failure of the mechanism parts, it is necessary to periodically check the oil level and replace it. It should be borne in mind that, although slowly, the fluid from the gearbox leaks, and the leakage occurs regardless of whether the column is new or old. The level is checked as follows:

With a key of 8, unscrew the filler plug.

The filler plug is turned off with a key 8

Using a screwdriver or other tool, check the oil level in the crankcase. The normal level should be at the bottom edge of the filler hole.

Use a screwdriver or other tool to check the oil level in the gearbox.

If necessary, add grease with a syringe until it starts flowing out of the filler hole.

Twist the plug and wipe the steering gear from smudges.

With regard to changing the oil in the steering gear, this procedure should be carried out every one and a half years. Once the decision has been made to change the lubricant, you need to know how to perform the procedure. In addition to the new lubricant, you will need two syringes of the largest possible volume (purchased at the pharmacy) and a small piece of washer hose. The procedure is carried out in the following order:

The filler plug is unscrewed with a key, a piece of tube is put on the syringe, the old oil is drawn in and poured into a prepared container. Remove old grease from the steering column with a syringe
The second syringe is poured into the gearbox with new grease to the desired level, while it is recommended to rotate the steering wheel. New grease is taken into the syringe, after which it is poured into the gearbox
Screw in the plug and wipe off any traces of oil.

Video (click to play).

Despite the complex design of the steering mechanism "seven", prevention, repair or replacement of the unit can be performed by every owner of this car.The reason for the repair is the characteristic signs of malfunctions in the operation of the mechanism. If parts with visible damage are found, they must be replaced without fail. Since the steering column is one of the critical components of the car, all actions must be performed in strict sequence.