Replacing valve stem seals on VAZ-2112, 2111 and 2110

VAZ 2106 replacement of valve seals

Valve seals VAZ 2106

Valve seals are designed to remove excess oil that gets onto the valve stems. It is the excess, a certain amount of it that should wash the sleeve with the valve.

If the valve seals (for some reason) stopped working (became unusable) and oil began to get into the combustion chambers, you need to replace the valve seals on the VAZ 2106.

Replacement

We remove the camshaft assembly with the bed.

Unscrew and remove the spark plugs. We remember the position of the distributor slider. To prevent the valves from falling into the cylinder, we will change the valve seals on those cylinders whose pistons are at TDC, and then bring the pistons to TDC to replace the seals in the remaining cylinders. (first replace the oil seals in the 1st and 4th cylinders, and then, turning the crankshaft 180°, in the 2nd and 3rd). For this…

...through the spark plug socket we insert a soft metal rod with a diameter of about 8 mm or a screwdriver, between the piston and the valve (on which we change the oil seal).

We screw the nut onto the stud securing the camshaft bed and place the desiccant grip under the screwed nut.

By pressing on the desiccant lever, we compress the valve springs and pull out the crackers with tweezers.

...two springs, outer and inner,...

...and then the top one...

...and the lower support washers.

Using a screwdriver, pry and remove the oil seal from the guide sleeve.

It is more convenient to remove valve seals using special pliers.

In order not to damage the working edge of the new oil seal, we put a plastic sleeve on the valve. The bushing usually comes with the valve seals.

Lubricate the working edge of the new oil seal with engine oil and put it on the valve.

Next, using tweezers, remove the plastic sleeve and press the oil seal, using a hammer, through the mandrel, onto the guide sleeve.

After we replace all the valve seals, we assemble the gas distribution mechanism in the reverse order of disassembly.

Before installing the camshaft, turn the crankshaft and return the distributor slider to its original position. In this case, the crankshaft pulley mark will be opposite the long mark on the front engine cover.

After final assembly of the gas distribution mechanism, we will adjust the thermal clearances in the valve drive.

How to replace the valve on a VAZ follow the link.

A set of 8 pieces costs about 125 rubles.

Signs of wear

Before replacing valve seals, you need to pay attention to signs of wear:

1. The candle thread is coated with oil.
2. Smoke appears from the exhaust pipe.
3. Smoke may appear from the neck into which the oil is poured.
4. There will also be carbon deposits on the electrodes of the spark plugs.
5. Fuel consumption increases.
6. The oil gets dirty quickly.

If such signs occur, it is recommended to purchase new oil seals and install them as soon as possible.

VAZ 2106: replacing valve seals at home

Valve seals (valve seals) VAZ 2106

You will need to replace valve seals on the VAZ 2106 when you notice an increase in oil consumption, and the appearance of periodic or constant bluish smoke (occurs when the cap ruptures or is severely worn). Blue (grey) smoke from the exhaust pipe is a very bad sign, which means that the car needs engine repair. Our instructions will help you replace the oil seals yourself.

Purpose of oil seals

Valve seals are designed to remove excess oil that gets onto the valve stems. It is the excess, a certain amount of it that should wash the sleeve with the valve. If the valve seals (for some reason) stopped working (became unusable) and oil began to get into the combustion chambers, you need to replace the valve seals on the VAZ 2106.

Signs that the seals have become unusable

In addition to smoke from the exhaust pipe, there are a number of signs:

• Appearance of grease on the spark plug threads
• The car smokes when the engine is cold (this is very noticeable when starting the engine in the morning)
• Dark stripes appear on the camshaft bed in the area of ​​the passing cap
• Increased oil consumption
• Frequent failures of one or more spark plugs

Do not rush to make major repairs right away, knowing that smoking and increased oil consumption may occur due to failure of the piston rings (see Replacing piston rings on your own), and some others. First, let's identify the problem so that the cost of the issue becomes clear:

• To distinguish a malfunction of valve seals from other malfunctions with similar symptoms, use a useful device - a compression meter.
• By measuring the compression in each cylinder, you will know exactly what needs to be repaired.
• Since worn valve caps have virtually no effect on the compression readings (if the compression in all cylinders is within the normal range, it means that the valve stem seals have failed; if the compression is weak in some cylinder, get ready for a major engine overhaul)

Valve seals become unusable during operation for the following reasons:

• Natural production of materials
• Engine overheating
• Use of valve seals made from low-quality materials
• Increased clearance in the valve bushings themselves
• Initially incorrect installation of oil seals

Professionals say that for the VAZ 2106, replacement of valve seals is necessary every 18 - 25 thousand kilometers

Very useful recommendations

We recommend not pouring diesel oil (as amateurs advise) into a gasoline engine; a thick sediment will appear in it, which will lead to blockage of all oil channels of the engine. This work requires some skills from you, if you are already familiar with the structure of the motor and the tools, and are not afraid to disassemble the engine yourself, then strictly following our useful tips, you will be able to replace the valve seals with your own hands. To replace, you will need a new set of valve stem seals (see VAZ 2106: replacing valve stem seals on your own), which we recommend ordering from a store specializing in spare parts or purchasing immediately; the caps are in stock. Ask: Why in a specialty store? Because, having experience, we have made the following conclusion - a specialized store is interested in a good reputation and, in principle, will not sell “inappropriate” or obviously low-quality goods. In any auto market, the choice of caps is much wider, sometimes sellers have no idea who the manufacturer of the product is, so don’t expect any guarantee of quality in this case. It is reliably known that the bulk of cheap spare parts on the auto market today are imported from China. In a specialized spare parts store, the seller can determine by computer, by entering the code in your data sheet, the engine model, based on this data, and select the necessary (suitable) valve seals.

Tools

• a set of keys
• round tin rod 8mm in diameter
• flat screwdriver
• tweezers
• oil seal puller or pliers
• valve depressurizer tool
• mandrel for pressing oil seals
• set of new seals

Let's move on to replacement

To replace valve seals on a car, you still need to get to them. Replacing valve seals on a VAZ 2106 starts with:

• Raise the hood and remove the terminals from the battery
• Using a 10mm wrench, unscrew the nuts (there are three of them) securing the air filter cover
• Remove the cover and filter element
• Unscrew the four nuts located on the carburetor and remove the air filter housing from it
• Using a 10mm wrench, unscrew the nuts securing the valve cover to the cylinder head
• Remove the cover after disconnecting the accelerator rod from the carburetor
• We disconnect the transverse roller located on the front shield in the engine compartment
• We bring the crankshaft pulley to the mark corresponding to the top dead center, both in the first and fourth cylinders
• From the camshaft, using a 17mm wrench, unscrew the bolt securing the drive gear
• Then we remove the gear and hang the chain on a piece of wire, the end of which can be conveniently secured to the hood locking bracket
• Now we remove the camshaft itself with the bed assembly
• Unscrew and remove all spark plugs
• Remember the position of the slider in the distributor
• To avoid the valves falling out into the cylinder, we change the valve seals on the cylinders where the pistons are in the TDC position
• Then bring the pistons of the next cylinders to TDC and change the seals on them (first we start replacing the seals in cylinders 1 and 4, then rotate the crankshaft 180° and change the seals in cylinders 2 and 3).
• To do this, through the spark plug hole we insert a prepared rod of tin (or other soft metal) with a diameter of approximately 8 millimeters or a screwdriver as an option between the valve and the piston (on which we replace the oil seal)
• We screw the nut onto the stud to secure the camshaft bed and place the desiccant grip under it

Assembly order

• The valve stem, oil seal and cap are lubricated with engine oil; the valve cap corresponding to the valve is placed on the stem with the oil seal facing up. It descends down the stem, where it is pressed tightly against the hole with the valve guide.
• The end of the mandrel is pressed against the rim of the cap, by lightly tapping the top of the mandrel with a hammer, the cap is pushed into the hole until it stops. The cost of a mistake in case of strong impacts, damage to the oil seal or cap, will have to be replaced. The springs are installed in the reverse order of disassembly.

Attention! After installing the springs and removing the device for compressing the springs, you need to remove the plate from the spark plug hole and tap the end of the rod with a hammer so that the crackers sit in their place. This must be done carefully; if the crackers are positioned incorrectly, the springs may pop out.

The camshaft cover, as required by the instructions, is pressed with a torque wrench with a force of 8 kg/m. tightening the nuts in the required sequence.

Replacing valve stem seals on a VAZ 2106

The valve stem seals on the VAZ 2106 are replaced after approximately 30,000 kilometers. If it is not there, then it is still better to replace it after 2-3 years, because the caps dry out from old age. Find out how to replace the caps on 2106 in the article.

At the moment, in stores you can find silicone valve stem seals, which in terms of their characteristics are much better than rubber ones. Nobody talks about their durability, it's all about the elasticity of silicone. This is very important in Russian winter conditions, especially if the engine is not equipped with a pre-heater.

When to change valve stem seals on 2106

Of course, there are car enthusiasts who carefully monitor their iron horse and carry out many procedures according to schedule. However, there are very few of them, so we will pay attention to external signs.

First of all, oil consumption. Before we talk about liters, it’s worth paying attention to this. Over time, when the oil seal wears out, it turns into a filler neck, and the valve stem turns into a piston that pushes this oil. Imagine that the engine is running at 1600 rpm. This means that 800 strokes are performed per minute in one cylinder, which means the valve moves back and forth 400 times. What if there are eight such valves? In general, a lot of oil can leak through the valve stem seals.

Further - increased smoke, reduced engine power. You need to remember one simple truth - engine oil does not burn, it cokes. Only the additives burn. We all know motorcycles in which oil is mixed with gasoline. We all remember how much smoke they make. But there the fuel is diluted with oil in proportions of 1:200. Here they are much larger. That is, if you see blue smoke from the exhaust pipe, then you should think about replacing the valve stem seals. Of course, with such a mixture the engine will not develop full power, as with pure gasoline.

Tools for replacing valve stem seals 2106

First of all, you need to immediately stock up on a sufficient set of tools so that later, when the engine has already been disassembled, you don’t have to rush around looking for them. So here's a short list.

• Key for turning the crankshaft;
• Rassukhaka;
• Set of flat blade screwdrivers, different widths;
• Set of keys and sockets;
• Tweezers;
• Valve cover gasket;
• If you plan to adjust the valves, then a feeler gauge with a thickness of 0.15 mm is required;
• Tin rod about 1 cm thick;
• Puller for valve stem seals.

Preparation for replacing valve stem seals of VAZ 2106

We will consider replacing valve stem seals on a VAZ 2106 without removing the head, so it will be both easier and more difficult. The simplicity lies in the fact that there is no need to dismantle the head. And the difficulty, which is also logical, is not to drop the valve into the cylinder.

First, unscrew the chain tensioner, then you will need to tighten it. This is necessary so that you can remove the camshaft gear without any obstacles. Next, remove the valve cover and mark the position of the gear on the chain. This is necessary in order not to set marks later. In principle, you don’t have to do this, but it’s easier this way.

Now we unscrew the gear, remove it and secure the chain so that it does not fall into the crankcase. If this happens, you will have to remove the pan, radiator, front cover and then adjust the timing. In general, it’s not very pleasant.

Now remove the camshaft housing. Next, we unscrew the spark plugs to make it easier to rotate the crankshaft. We hold the chain tight and set the piston of the first cylinder to top dead center (TDC). This is why you need a key to rotate the crankshaft. To get exactly to TDC, you need to align the mark on the crankshaft pulley with the last mark on the front cover along the way.

Replacing seals on valves and other structural elements of a VAZ 2106

Replacing valve seals on a VAZ 2106 is an important and not too complicated procedure, which is necessary in cases where increased oil consumption is noticed or bluish smoke is detected. These signs are harbingers that it is time to repair your car engine. Timely replacement of oil seals guarantees normal operation of the machine.

The purpose of this type of VAZ 2106 valve seal is as follows: they help remove excess oil that can get into the valve stems. They are designed to remove excess grease, since some of the oil must get into the bushing. They can be called one of the types of cuffs; oil seals must seal between car parts. Before replacing seals, you need to find out whether they are suitable for use. If this structural component fails, then the signs of failure are:

• the appearance of lubricating fluid on the threads of spark plugs;
• the appearance of increased exhaust smoke when the engine is cold;
• increased oil consumption;
• the appearance of dark lines in the camshaft area near the cap;
• frequent failure of spark plugs.

To determine the reasons for increased oil consumption, you can use a compression meter, which will help you find out the compression of the cylinders. In cases where the pressure of each cylinder is below normal, the oil scraper rings need to be replaced.

Valve seal replacement process

To carry out this action, it is necessary to prepare a new set of valve stem seals in advance. You will need a flat-head screwdriver, keys, an 8 mm tin rod, tweezers, pliers, equipment for loosening the valves and a mandrel that is needed to press in the seals. First you need to remove the terminals from the battery after opening the hood.

Then you need to unscrew all three nuts that hold the air supply filter. The lid itself and the element that performs the filtration must be removed. The 4 nuts on the carburetor must be unscrewed to be able to remove the air filter housing. Now you need to remove the nuts that secure the valve covers to the block. After disconnecting the rod from the carburetor, you can remove this cover.

Next, you need to very carefully remove the camshaft, which is located in the block. To do this, change the position of the shaft pulley. Then the bolts that connect it to the gear are unscrewed from the camshaft. After this, the gear can be removed. It is better to hang the chain to make it easier to remove the camshaft later. After these steps, all the candles are unscrewed.

Next you will need to use a desiccant. After desiccation, it will be possible to remove the seal from the valve sleeve. It must be lubricated with engine oil in advance. After this, it can be removed by tapping with a hammer. Assembly is carried out in reverse order.

Procedure for replacing axle shaft, crankshaft and tail seals

Before you begin the process of replacing the cuffs, you need to remove the VAZ 2106 axle shaft. This requires a mounting blade, which is inserted inside, and the axle shaft is pryed off. After removing the cuff, a new oil seal is installed in the empty space. To do this, you need to lightly tap it to press it into place. After replacing the seal, the axle shaft is put back in its place. Once stopped, replacing the axle seal is complete.

The front and rear seals on the crankshaft must be replaced. In order to replace the front crankshaft oil seal, certain manipulations must be performed in strict sequence. First, the nut is unscrewed, with which the pulley is secured. The pulley is removed using a mounting blade. Next, the gasket and drive cover are removed. The damaged seal is carefully knocked out from the crankshaft.

The new oil seal that will be installed in this place must be lubricated with oil in advance. During the installation process, a hammer is used to shrink and seal the seal. To replace the rear seal, you need to remove the bolts that secure the holder. Release the holder together with the lining. Using a screwdriver, remove the old seal and install a new one. When assembling, all steps are performed in reverse order. After all operations have been completed, the replacement of VAZ 2106 crankshaft oil seals is complete.

Replacing shank seals

To replace the oil seal in a structural element such as a shank, you must correctly install the machine on an overpass or pit. Then the hexagon is unscrewed from the gearbox and all the oil is poured out. The rear gearbox flange must be separated from the driveshaft. After removing the flange, the oil seal itself is pryed off and removed.

In its place, a new one treated with oil is installed, which must be additionally pressed. The unit is reassembled in the reverse order. After assembly is completed, the replacement of the shank oil seal can be considered completed. After installing a new oil seal, you need to change the oil in the gearbox and check the operation of the device.

Repair procedure

1. First of all, you need to get to the valve stem seals. We unscrew the cover nuts from the block head, do not forget to put the washers in a separate place so as not to lose them.
2. We turn the crankshaft and carefully watch when the marks on the cover coincide with the marks on the camshaft sprocket. This position will ensure the safety of the valves after removing the crackers.
3. Unscrew the camshaft bearings. Fixing the sprocket and chain can save you from a lot of problems, because they love to fall into the engine crankcase and ruin the rest of the day.
4. The piston in the first cylinder has reached top dead center. Now is the time to dismantle the spark plug and remove the spring. After this, move the lever to the side.
5. The adjusting bolt must be loosened, then a spring puller must be installed.
6. We insert a rod or tube made of soft metal into the hole of the candle, this will protect the valves from falling.
7. We take out the cracker and press the spring until the crackers appear. Sometimes they get stuck and need to be released by lightly tapping them.
8. Remove the springs, valve plates and washers.
9. We fix the valve with a clamp and remove the obsolete oil seal. You can help the process by lightly tapping the hammer.
10. Before the procedure, lubricate the new valve stem seal with engine oil. We put protective caps on all new oil seals, which should be included in the kit. This will protect the valve surface from scratches during the pressing process. Pressing is done with the same desiccant, only on the other side.
11. Repeat the same steps on the remaining valves. It is important to remember to crank the crankshaft before working on the second and third cylinders.

After installing the new, elastic and sealed valve stem seals, reassemble everything in the reverse order. If everything worked out correctly, you can be happy with yourself! The repair has been completed.

How to replace valve stem seals on a VAZ-2106

If you are here, then you are the proud owner of a VAZ-2106 car that has some problems. Perhaps you enjoy watching persistent foreign cars trail behind your “six” and swallow the gray exhaust, but small, unnoticeable caps, like a candle that burned Moscow, can lead to the death of the entire engine, and therefore turn your iron horse into a modest example of real estate. The decision to fix the car was absolutely correct, and with some skill you will quickly deal with the problem.

Before work

The combustion chamber of the engine must be protected from foreign substances, so the cylinders need protection from oil. This is where valve stem seals, or oil seals, come into play, protecting the combustion chamber as the valve stems move. Over time, they lose elasticity and the quality of their work decreases. Nothing prevents oil from getting where it shouldn't be.

If you notice that the exhaust has become bluish and thick, soot or even soot has appeared on the spark plugs, and your VAZ-2106 eats oil like gasoline, then it is very likely that the problem with the seals has affected you too. You need to have the courage to open the hood and examine the problem. Perhaps the entire gas distribution mechanism needs to be replaced, but for now we will only talk about the caps: if we really strain ourselves, then do it systematically.

How to make your own devices

It is convenient to use a special device, since there is no need to hold it with your hands; it holds the springs compressed with a bolt. If you don’t have such a device, you can make it yourself. To do this, it is enough to have two steel square bars 10x10 mm, 300 mm long. They need to be fastened at three points, at the ends and in the middle, so that there is a gap of 12 mm between them, like rails, then the price will be much cheaper. So:

• You can attach it in any way; bolts, clamps, welding, in the fastening points between the rods you need to place metal plates 12 mm thick, which will provide the necessary gap between the rods.
• The valve stem will fit into the gap when the springs are released. To install valves, instead of a mandrel, you can use a steel tube 120 mm long, with an internal diameter of 14 mm, and a copper washer with a hole matched to the rim of the cap.

How to change valve stem seals on a VAZ 2106

In the article we will talk about how to replace the oil seals of a VAZ 2106. Sometimes they are called valve seals, which is also true, like valve seals.
These are small elements made of durable rubber and ceramics that can withstand high temperatures. They are used in the gas distribution system to prevent oil from entering the combustion chambers. If you look at the design of an internal combustion engine, you can see that the valves are lubricated by engine oil at the top. From below, combustion of the fuel mixture occurs. Now imagine what will happen if oil starts leaking through one of the valves?

That's right, it will burn, leaving a lot of soot on the walls of the combustion chamber, and smoke may also appear from the muffler. Consequently, depending on the degree of destruction, oil consumption will also appear.

Why do VAZ 2106 valve stem seals wear out?

New valve seals are elastic and soft, elastic, tightly compressing the valve, preventing lubricant from entering the combustion chambers. Depending on how old the engine is, the caps change their properties.

Exposure to different temperatures - for example, when warming up in winter, oil seals can heat up by more than a hundred degrees in a few minutes.

It is this condition that determines the degree of wear of the caps. They become hard, begin to leak oil and do not fulfill their direct duties.

Replacing the valve stem seals of a VAZ 2106 with your own hands is quite simple - you don’t need to have a mechanic’s education, you just need to do all the work carefully. From the special tool you will need:

1. Valve depressurizer - for compressing the spring.
2. Mandrel for installing oil seals.
3. A puller or pliers for removing old caps.
4. A soft metal rod for securing valves in engine cylinders.

You should have all this available if you are repairing the VAZ 2106 yourself. Otherwise, you gradually buy all the accessories in stores.

Necessary tools and accessories

Replacing the valve stem seals of a VAZ 2106 is done directly on the car, which significantly speeds up the work, since there is no need to remove and then reinstall the cylinder head. It is enough to place the car in a place protected from dust and precipitation. Apply the handbrake and place the gearshift knob in neutral. Replacing valve stem seals on a VAZ 2106 requires a set of caps and a new head cover gasket, standard tools, accessories:

• Carrying;
• Candle key;
• Spanners 17 mm., 13 mm.;
• Hexagonal internal heads 8 mm, 10 mm, 13 mm. with a collar;
• Pliers;
• Tweezers;
• Flat screwdriver;
• 8 mm thick soft metal rod;
• Torque wrench;
• Spring compression device
• Mandrel for installing caps
• Soft wire.