The new timing chain of the VAZ 2107 rattles. The timing chain knocks (rattles), cold or hot. How to determine and whether it is possible to ride. Which hydraulic tensioner to choose and where to buy it

One of the most important components of each car is the gas distribution mechanism. The correct operation of this unit affects the operation of the entire motor. The drive mechanism of the timing system on a VAZ 2107 car is a chain. If it sags a lot, it can jump to one of the stars. When it is displaced by at least one tooth, failures in the operation of the motor are observed, as well as destabilization of revolutions. To avoid sagging of the chain, it is required to periodically tension it, and, with certain signs, to replace it.

During operation, the chain is subjected to heavy loads, so its resource is 60-80 thousand km. Adjustment should be carried out every 15 thousand km, but if the driver detects earlier that something began to rattle while the engine is running, then it should be diagnosed. Before tensioning, it is necessary to check its serviceability.

It is also necessary to check the tension in the case when the timing was repaired on the VAZ 2107 or in the case when, after tension, the knock of the product is still observed. A knock, or rather, the rustle of a chain, will not be difficult to distinguish even for an inexperienced driver. This rustle is clearly audible if you lift the hood and listen to the engine running on idling. If you add gas, then the rustle disappears, which actually indicates that the time has come to tighten the timing chain. For this, a timing chain tensioner is used, which are various kinds: automatic and mechanical.

Step by step instructions for stretching

Now let's pay attention to the question of how to properly tension the timing chain on the VAZ 2107. Initially, it is worth noting that the timing mechanism on VAZ 2107 cars with a fuel supply system, the injector and the carburetor are absolutely identical. Stretching on the VAZ 2107 is performed in the following sequence:

If the actions performed were unsuccessful and the noise remained, you will have to resort to performing a visual inspection of the timing mechanism, and for this you will have to disassemble the engine.

Adjust the chain tension by rotating the crankshaft. If there is no special key available to rotate the crankshaft, then you can hang the rear of the car or one of the wheels, then turn on 5th gear and rotate the wheel.

Tension check

The VAZ 2107 chain is located in front of the motor. It is not visible, since it is covered by the cylinder head cover and the block itself. Before you start disassembling the VAZ 2107 engine, you need to understand the features of visual inspection and checking its tension. It is rational to check the chain tension only in the case when its usual tension did not help solve the problem.

To visually check the tension of the VAZ-2107 timing chain, you must first remove the air filter housing, then the cylinder head cover. To do this, you need a key for "10", with which you need to unscrew 8 fixing nuts.

When removing the cylinder head cover, special attention must be paid to the integrity of the gasket. If necessary, it is better to replace it, since in most cases an engine oil leak may occur.

After removing the valve cover, access to the top of the product appears. Here you need to inspect the tensioner shoe and damper for integrity, and after that, check the chain mechanism with your hands, and if that doesn’t work, you can use a pry bar or a large screwdriver.

The mount must be installed in such a way that it is between the chain mechanism and the block body. As a result, we get a lever, which checks the chain tension on a VAZ 2107 car. If it bends easily, then its tension needs to be adjusted or replaced. The ideal is the tension at which the product does not bend and is stretched like a string.

It's important to know! When checking the tension of the timing chain, it is necessary to exclude the application of large forces, as this may lead to deformation of the links of the device.

Repair of VAZ 2107 tensioners is not carried out, so the product will have to be replaced with a new one. Replacement is rarely required, but the ANC Pilot automatic tensioner is best suited for this. After installing it, you will forget about the noise and clang of the engine for a long time. But if you already have an automatic tensioner installed, and at the same time the engine rattles or the chain makes noise, then it makes no sense to adjust. It will be necessary to immediately disassemble and replace the parts of the timing mechanism.

On classic cars of the VAZ family, a timing chain drive was installed. Since this is one of the important elements of the gas distribution mechanism, it is necessary to periodically monitor its condition and tension. In the event of failure of the parts responsible for the operation of the circuit, it is necessary to immediately carry out repairs in order to avoid serious consequences and costly repairs.

Timing chain drive VAZ 2107 - description

The chain transmission of the timing mechanism VAZ 2107 has a long resource, but once the turn comes and its replacement. The need for this arises as a result of the stretching of the links, when the chain tensioner no longer copes with the functions assigned to it. In addition, the parts responsible for the normal operation of the timing drive also wear out over time.

sedative

In the chain drive of the VAZ 2107 gas distribution mechanism, a damper is used to dampen jerks and oscillations of the chain. Without this detail, with an increase in the amplitude of oscillations, the chain may fly off the gears or even break off. A broken chain drive is most likely at maximum crankshaft speed, which happens instantly. At the time of the break, the intake and exhaust valves. After such damage to the engine, at best, a major overhaul will be required.

By its design, the damper is a plate made of high-carbon steel with two holes for fastening. Another element that is simultaneously responsible for calming and tensioning the chain is the shoe. Its rubbing surface is made of high strength polymer material.

Tensioner

Based on the name, it can be understood that the device is designed to prevent sagging of the timing chain while the engine is running. There are several types of such mechanisms:

• automatic;
• mechanical;
• hydraulic.

Automatic tensioners appeared not so long ago, but have already managed to show their positive and negative sides. The main advantage of the product is that there is no need to periodically adjust the chain tension, since the mechanism keeps it constantly taut. Among the shortcomings of the auto-tensioner, there is a quick failure, high cost, poor tension, as evidenced by the reviews of some car owners.

Hydraulic tensioners are powered by pressurized oil supplied from the engine's lubrication system. Such a design does not require intervention from the driver in terms of adjusting the chain drive, but the mechanism can sometimes wedge, which negates all its advantages.

The most common tensioner is mechanical. However, it has a significant drawback: the product becomes clogged with small particles, as a result of which the plunger jams and the mechanism is unable to perform its functions during tension adjustment.

Chain

The timing chain in the VAZ 2107 engine is designed to connect the crankshaft and camshaft: they have gears on which a chain is put on. After starting the power unit, the synchronous rotation of these shafts is ensured by means of a chain transmission. In case of violation of synchronism for any reason, the timing mechanism fails, as a result of which the stable operation of the engine is disrupted. In such a situation, power failures, deterioration in dynamics, and an increase in fuel consumption are observed.

As the vehicle is used, the chain stretches as high loads are placed on it. This indicates the need for periodic adjustment. Otherwise, sagging will lead to jumping of the links on the gears, as a result of which the operation of the power unit will be disrupted. To prevent this from happening, the factory recommends adjusting the chain tension every 10 thousand km. run.

Even if there are no characteristic sounds (rustling) indicating chain stretching, it is advisable to check the tension, especially since the procedure is simple and does not take much time.

Signs and Causes of a Malfunctioning Chain Drive

The timing chain drive, unlike the belt drive, is located inside the motor and, in order to assess the condition of the elements, a partial disassembly of the power unit will be required. There are certain signs that indicate that not everything is in order with the chain drive and that it needs to be tensioned or replaced.

Rattles the chain

Circuit problems can manifest themselves as follows:

• rattles in the cold;
• knocks on hot;
• there is extraneous noise under load;
• constant metallic sound.

If extraneous noise appears, it is recommended to visit a service station in the near future or independently deal with problems in the timing drive and assess the condition of all elements responsible for its operation (tensioner, shoe, damper, chain, gears). If you continue to drive a car with a rattling chain, wear of parts increases.

The main reasons that lead to the failure of timing components are:

• untimely replacement of engine oil or the use of the wrong brand recommended by the manufacturer;
• use of low quality spare parts (non-original);
• low oil level in the engine or low pressure;
• untimely maintenance;
• incorrect operation;
• poor quality repair.

One of the likely reasons that the chain starts to rattle is its stretching and a malfunction of the tensioner. As a result of this, the chain drive cannot be tensioned properly, a uniform noise appears in the motor, similar to the operation diesel engine. In most cases, the sound is heard when idling on a cold engine.

Video: why the chain rattles on the "classic"

Jumped the chain

With a weak tension, the chain is pulled out quite quickly and can jump on the gear teeth. This is possible as a result of a broken shoe, tensioner or damper. If the chain has jumped, then there is a strong displacement of the ignition. In this case, it is necessary to carry out troubleshooting of the drive parts of the gas distribution mechanism.

Repair of the timing chain drive VAZ 2107

In the event of a malfunction of the chain mechanism, it is not worth delaying the repair. Otherwise, consequences are possible that will lead to costly repairs. Consider a step-by-step procedure for repairing the constituent elements of the timing drive on the "seven".

Replacing the damper

In order to replace the chain drive damper, you will need to prepare the following list of tools:

• a set of keys and socket heads;
• screwdriver;
• long tweezers, magnetic telescopic handle or hard wire hook;
• engine head cover gasket;
• car sealant;
• new chain damper VAZ 2107.

The procedure for replacing the chain damper is reduced to the following step-by-step actions:

1. We are filming air filter, for which we unscrew 3 nuts securing the housing cover and 4 nuts securing to the carburetor.
2. With a head or a tubular wrench for 13, we unscrew the fasteners of the valve cover and remove it.
3. Using a 13 wrench, loosen the chain tensioner nut.
4. With the help of a long flat screwdriver, we take the tensioner shoe to the side.
5. Holding the shoe in the retracted state, tighten the cap nut.
6. We make a hook from a piece of wire and hook the damper through the eye.
7. We unscrew the bolts securing the damper and remove them, holding the damper itself with a hook.
8. Turn the camshaft 1/3 turn clockwise with a wrench.
9. When the chain is loosened, remove the damper.
10. Replace the damaged part with a new one in reverse order.

Video: how to replace the damper on the "seven"

Tensioner replacement

Replacing the chain tensioner requires a minimum of time and tools. The work comes down to several steps:

Before mounting the tensioner, it is necessary to unscrew the nut and press the rod, then tighten the nut.

Shoe replacement

Repair work on replacing the shoe begins with the preparation of the tool:

• screwdrivers;
• spanners;
• mounting blade;
• wrench for the crankshaft pulley nut or regular 36.

The sequence of steps for replacing a part is as follows:

1. We dismantle the crankcase protection of the power unit.
2. After loosening the fastening of the generator, remove the belt from it and from the crankshaft pulley.
3. We dismantle the casing together with the electric cooling fan.
4. We unscrew the nut securing the crankshaft pulley with a 36 wrench and tighten the pulley itself.
5. We unscrew the bolt fastenings of the front part of the crankcase (under the number 1 - we loosen, under the number 2 - we turn it off).
6. We loosen and unscrew all the bolts securing the front cover of the motor.
7. Remove the cover by prying it with a screwdriver.
8. We unscrew the mount "2" of the shoe "1" and remove the part.
9. We assemble in the reverse order.

Video: how to replace the chain tensioner on a Zhiguli

Chain replacement

The chain is replaced in the following cases:

• when it is stretched, i.e. when the tensioner cannot cope with the tension;
• after a run of 80–100 thousand km.

From the tools you need to prepare:

• a hammer;
• screwdrivers;
• spanners;
• mounting blade;
• a piece of wire;
• key for turning the crankshaft.

The procedure for replacing the chain transmission is carried out in the following order:

1. Remove the valve cover from the engine.
2. We turn the crankshaft with a key until the mark on the camshaft gear is opposite the mark on the bearing housing. In this case, the mark on the crankshaft must also coincide with the mark on the front cover of the engine.
3. Bend the washer that secures the camshaft gear bolt.
4. We turn on the fourth gear and put the car on the handbrake.
5. We loosen the fasteners of the camshaft gear.
6. Remove the chain guide.
7. We unscrew the fastening of the front cover of the engine and remove the shoe.
8. We bend the lock washer located under the bolt of the gear of the auxiliary units.
9. We unscrew the bolt itself with an open-end wrench by 17 and remove the gear.
10. Loosen the limit pin.
11. Loosen the camshaft gear bolt.
12. Raise the chain and remove the gear.
13. Lower the chain down and remove it from all gears.
14. We check the coincidence of the mark on the crankshaft gear with the mark on the engine block.

If the marks do not match, turn the crankshaft until they are aligned.

After the steps have been taken, you can proceed with the installation of a new circuit:

1. First, we put the part on the crankshaft sprocket.
2. Then we put the chain on the gear of auxiliary devices.
3. We install the gear of auxiliary units in place, baiting the fixing bolt.
4. We hook the chain and raise it to the camshaft.
5. We put the chain drive on the camshaft gear and put the sprocket in place.
6. We check the coincidence of the marks and pull the chain.
7. Lightly tighten the camshaft gear bolt.
8. Install the damper and shoe in the reverse order of removal.
9. We put the restrictive finger in place.
10. We turn on the neutral gear and turn the crankshaft with a 36 key clockwise.
11. Checking if the labels match.
12. With the correct location of the marks, we tighten the chain tensioner nut, turn on the gear and wrap all the gear mounting bolts.
13. We install all the elements in the reverse order.

Video: replacing the timing chain on a VAZ 2101–07

Installing the chain by marks

If repairs have been made to the timing drive or the chain has a strong stretch, in which the marks on the camshaft gear and crankshaft pulley do not match the corresponding marks on the bearing housing and engine block, you need to make adjustments and install the chain correctly.

Of the tools you will need:

• Screwdriver Set;
• key to rotate the crankshaft;
• a set of keys.

To install the chain, follow these steps:

1. Remove the cover, filter and its housing.
2. We disconnect the crankcase exhaust pipe from the carburetor, and also loosen the suction cable fasteners to remove the cable.
3. Using a 10mm socket wrench, unscrew the valve cover fasteners.
4. We remove the lever from the cover along with the carburetor rods.
5. Remove the block head cover.
6. We scroll the crankshaft with a key until the mark on the camshaft gear matches the protrusion on the housing. The mark on the crankshaft pulley must match the length of the mark on the front cover of the engine.
7. If, when setting the marks, it turned out that one of them does not match, we unbend the lock washer under the camshaft gear mounting bolt.
8. We turn on the first gear and unscrew the bolt securing the camshaft gear.
9. We remove the asterisk, holding it in our hands.
10. We dismantle the chain from the gear and change its position in the right direction to align all the marks, as described in paragraph 6.
11. We assemble in the reverse order.
12. At the end of the procedure, do not forget to stretch the chain.

Video: setting the valve timing on the VAZ 2101–07

Chain tension

Every owner of this car should know how to tension the timing chain on the VAZ 2107. To carry out the work you need to prepare:

• key for 13;
• key 36 for crankshaft rotation;
• a hammer.

The procedure is carried out in the following order

1. Using a 13 wrench, unscrew the cap nut of the tensioner.
2. With the crankshaft wrench, turn the pulley a few turns.
3. Stopping crankshaft at the moment of maximum resistance to rotation. In this position, we make a stretch.
4. We turn the cap nut.

Video: chain tension on the "classic"

Sometimes it happens that when the nut is loosened, the tensioner does not snap off. To do this, tap on the body of the mechanism with a hammer.

To understand whether the chain really has a good tension, you must first remove the valve cover before adjusting.

Types of chain drive

The VAZ "seven", like the other "classic", is equipped with a double-row timing chain. However, there is a single-row chain, which, if desired, can be installed on the Zhiguli.

Single row chain

A chain drive with one row has less noise when the engine is running, compared to two rows. This factor is one of the main ones in favor of choosing single-row chains. Therefore, some owners of the VAZ 2107 decide to replace the timing drive. The lower noise level is due to the fact that fewer links are driven. In addition to the whole engine, it is easier to rotate such a chain, which positively affects the increase in power. However, due to the low noise level when such a chain is stretched, it is not always clear that the part needs to be tensioned.

double row chain

Despite the advantages of a single-row chain, a two-row chain drive is the most common, since it is characterized by high reliability and when a link breaks, the entire chain does not break. In addition, the load on the timing drive parts is distributed evenly, as a result of which the chain and gears wear out more slowly. The term of the part in question exceeds 100 thousand km. Although recently automakers, in order to reduce weight power units install chains with one row.

Replacing a double row chain with a single row

If you are thinking about replacing a double-row chain drive with a single-row one, you will need to purchase the following parts:

• crankshaft, camshaft and oil pump for single row chain;
• sedative;
• shoe;
• single row chain;
• automatic tensioner.

All of the listed parts are taken, as a rule, from the VAZ 21214. The work of replacing the chain should not cause difficulties. The only thing that is required is to replace the sprockets, for which the corresponding fasteners are unscrewed. Otherwise, the steps are similar to the procedure for replacing a conventional two-row chain.

Video: installing a single-row chain on a VAZ

Despite the fact that replacing the timing chain drive with a VAZ 2107 is not an easy process, every Zhiguli owner can do it if you follow step by step instructions. The main thing is to correctly set the marks upon completion of the work, which will ensure the synchronous operation of the crankshaft and camshaft.

Chain that needs tightening

It is necessary to tighten the chain on the VAZ 2107 in the following cases:

• during prolonged use of the car,
• when a metallic ringing appears in the front of the motor,
• after the repair, which included the removal of the timing chain VAZ 2107 and other elements of this system,
• before adjusting the valve clearance,
• after the timing chain tensioner or its damper was replaced.

The main causes of circuit failure

As a result of the increase in engine speed, the chain begins to rattle. In this case, the metallic ringing goes away as the speed decreases. stretched chain Timing contributes to a gradual shift in the valve timing, which leads to engine malfunctions.

How to pull the chain on the VAZ 2107, all owners of cars of this brand should know. This work is done with a key on "13" and a hammer. The circuit is adjusted as follows.

1. The tensioner is loose. During this procedure, the shoe should snap off. If this does not happen, then the plunger of the timing chain tensioner is stuck. The problem is eliminated by tapping with a hammer on the body of the unit.
2. Using the key on "13", the cap nut is unscrewed.
3. With a special key for the crankshaft, the pulley rotates a couple of turns.
4. The crankshaft stops at the moment of maximum resistance to rotation. In this position, tension is applied.
5. Holding the crankshaft from turning reverse side, tighten the cap nut.
6. The cylinder head cover is being installed.

In some cases, such a stretch is ineffective. Experienced auto mechanics know how to tighten the VAZ 2107 injector chain. This will require the following tools: heads on "8" and "10", pliers and a ratchet with a knob. The valve cover is unscrewed and dismantled, thus gaining access to the camshaft star. Chain tension is manually checked.

The next step is to turn the crankshaft VAZ 2107 injector a few turns. This work is carried out when the starter is turned on for a few seconds or with the help of a key that is thrown over the ratchet.

The next step in solving the problem of how to tension the chain is to check the tension. To do this, it is recommended to click on the side branch of the mechanism in question. This procedure is carried out until the desired result is achieved. After that, the tensioner bolt is screwed up to the stop. In order for the work to be done correctly, a special scheme is used.

Automatic tensioner system

Automatic tensioner

Some car owners of classic VAZs replace the standard chain tensioner with an automatic Pilot type. The automatic tensioner after installation does not require maintenance and, without the intervention of the master, ensures that the chain is tightened as it stretches. The advantages of the device "Pilot" include:

• no need to supply an oil line, which eliminates the grinding of the timing chain VAZ 2107 injector and loss of oil pressure;
• lack of plunger elements, due to which the automatic chain tensioner "Pilot" does not wedge;
• the movement step is 1 mm, which allows you to regularly monitor the degree of tension;
• lack of wear of the shoe;
• reduction of motor noise;
• increase in the resource of all timing units;
• long service life - about 25 years.

The "Pilot" chain tensioner improves the performance of the VAZ 2107 injector engine due to the precise execution of valve timing. The process related to how to tighten the chain is carried out regardless of the operation of the car engine.

The mechanical chain tensioner is the “weak point” of Chevrolet Niva and Niva cars.

The mechanical chain tensioner is considered in Niva cars as the first tuning part. Unfortunately, it is this part that often fails and can manifest its malfunction in different ways at startup.
It has been proven that indeed hydraulic tensioner the chain sometimes rattles, and the valves can make a knock. Especially often this problem is faced by those who drive a Niva. Such a problem, as motorists complain, often occurs with very low mileage. This node is weak point» all Chevrolet Niva cars.

Therefore, car mechanics have developed a number of algorithms, having studied which, you can independently solve this problem. And so, if there is not enough oil, a “murmur” sound may appear in cold weather (for example, in 20-degree frost), when engine oil cold and thick - the chain often rattles when starting.

How to understand: the problem is in hydraulic tensioner or faulty hydraulic lifters?

Before diving deeper into the nature of the problem, you need to understand and be sure that the problem is with hydraulic tensioner, not with hydraulic compensators. How to understand what exactly is out of order? You can determine without a car mechanic yourself in this way: if the hydraulic tensioner- it stops rattling when the speed rises at start-up. What if there is a problem with hydraulic compensators- then even when the revs rise at startup, the rattling sound will still remain.

Which one hydraulic tensioner choose and where to buy it?

If, after the simple analysis described above, it became clear to the car owner that the problem was with hydraulic tensioner, then he will need to carry out a series of actions. The first thing you need to pay attention to is the engine. The first step is to check the oil level. Also, it will not be superfluous to check the serviceability of the tensioner and damper shoes. If they are normal, auto mechanics advise changing the defective part to an automatic chain tensioner.

You can put either the company "Pilot" or Isai. Some car makers recommend Alternative option— ESPRA. Hydraulic tensioners it is not difficult to find the above companies for the Chevrolet Niva today. They are available in almost all auto shops. But they can also be purchased online.

Features of self-elimination of the defect that has arisen

When is the replacement hydraulic tensioner chains and the installation of a mechanical tensioner on a Chevrolet, the valve cover must be removed.

Further, after pulling out the checks, you need to make one complete revolution of the crankshaft with a ratchet wrench. It is important to pay attention to whether the sagging chain on the Niva has come out of the grooves of the tensioner and damper shoe. If this moment is ignored and the defect is not eliminated, then the consequences can be sad (but this applies only to a single-row chain).

Also, as a result of the first turn, the primary slack of the chain on the Niva is selected and, as a rule, the rod immediately goes out for another one or two clicks, relative to the first shooting. After self-replacement, subsequently no extraneous sounds will be observed at startup on the Chevrolet Niva. The engine will always run smoothly.

By the way, practice shows that sometimes it is possible not to resort to replacing the above-described assembly on a Chevrolet, but simply enough to get by with just an oil change. Many auto mechanics advise not to fill in synthetic oil, but semi-synthetics.

When hydraulic tensioner replaced, when the engine is started, nothing will rattle. Since it is always only the faulty element that rattles. Instructions for self replacement of this node proves that the procedure is not at all complicated, in addition, the price of the issue is no more than 2,000 rubles. But there is one “but” - if the Niva Chevrolet car is relatively new and was under warranty, it will automatically be cancelled.

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