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Each car owner can independently perform work on the dismantling and restoration of the knee shaft, without additional expenses for the services of the master. Application of recommendations will allow you to perform qualitatively difficult work. At the same time, it is important to work carefully, so as not to thwart the key grooves from the crankshaft.
Purpose of pulley crankshaft
The design serves as drives from the drive to attachments and consists of a massive disk, cast-iron part, which is located on the axis. In addition, depreciation is promoted with changes in rotation, balancing the rotating adaptation, the compaturation of the belts.
The design has a clearance, with which the disk is planted on camshaft in front of it, which comes from the carburetor or with valve injector. On it is a fastener. And on top there are holes for the addition of wedge-shaped and polyclinovoid belts. The design itself is heavy enough, because in the manufacture of the plant make holes, to reduce weight.
The item happens two species - the damper crankshaft pulley and the usual. Unlike the repended, the item has massive rings. Outside there is a gasket that is separate from the base. Gasket reduces vibration. In addition, the part is equipped with an outer disk and periphery connected by durable rubber. A rubber gasket protects against temperature differences and other effects. With long use vehicle, the gasket is wear out. Therefore, it should be changed from time to time to preserve a more important part - a massive disk. External aluminum autodetal with irregularities. The gear coat facilitates the partition sensor operation.
Possible malfunctions
Detail designed for use for 10 years.
List of possible problems:
- the buffet breakthrough, from which noise appears when the engine is operating (the characteristic of the characteristic GUR and TRM);
- spontaneous unscrewing cut-off parts;
- worn grooves that affect premature wear belts;
- when biodilled during an accident, part of the part can be broken down, which entails further breakdowns (because after an accident it is important to check the technical service of AvtoVAZ);
Buying a separate function disc need to choose original detailhow much she would not stand. This contributes to the reliable and long work of the car. Even if a simple detail is sharpened, the size may not match.
Tools for work
Before starting repair, it is important to have:
- caid or end tool for 36-38;
- lever extension or a piece of durable pipe;
- jack;
- screwdrivers.
Prepared required set Tools, proceed to work.
Dismantling and replacement
Not depending on the design where the item is located, to shoot and mount it is important in the same order. Depending on the location of the motor, the part is in front of the cooling radiator. But if the motor is placed in across motor compartment, To the details, your hand will not be pregnant. Therefore, to remove the crankshaft pulley, it is necessary to remove the right wheel. If it is difficult to change, it makes sense to pay attention to the drawing, work will accelerate.
The vehicle is rolled to the observation pit and fixed that the car does not push around. To get and remove the design, it is necessary to promote all the details that prevent access ( air filter, mud shields, other). Clean the generator belt. Next, open the clutch block plug, and insert the mount to the hole to stall the flywheel.
Elements of parts are characterized by strong fixation, therefore they are not easy to eliminate. To turn the item, you need to make a lot of effort. If dismantling is performed for the first time, then unscrew the crankshaft pulley will be difficult. The reason is that the factory production is characterized by a strong tightening component parts of the part.
Important! The right screw pattern means that the turning process occurs counterclockwise. Autodetal spin in another direction, because if it oxidized, then it is not so easy to disassemble it, it is useful to use additional funds.
How to unscrew the pulley crankshaft nut
Touching fasteners, it is important to adhere to the recommendations, then the process will take at least 15 minutes. Applying efforts is as close as possible to the distribution shaft:
- mounting are approaching all sides;
- if necessary, use a special universal puller pulley crankshaft for this part.
The device is represented as a stud with 2-3 captures. The end of the capture is fixed along the edges of the part, and the end of the heel rests in the middle of the shaft.
Scroll through the clockwise arrow. But not in all brands of cars are checked clockwise, in some auto work must be performed in the opposite direction. At the same time, it is important to put your gearbox lever on 4 speed and turn on the handbrake.
If you fail to be checked, the lever must stand in a neutral position. Next stage - Remove candlesticks. The key rests in the floor either in the rear side member and twist in the direction of the device movement.
All maneuvers make it easy to scroll, because next steps manually produced, if necessary, lubricate to do brake fluid Or lubricant "WD". In addition, it can facilitate your work, tapping on the edges of the head.
How to unscrew the crankshaft pulley bolt
To perform a high-quality work, the disassembled machine is put on the pencil. The pin fastens the item, is usually the front-wheel drive machines. The thread is arranged in such a way that during the torque when driving it is delayed.
You must perform actions that open access to the base. For this, it is important to fool the rotation well. As a retainer use a mount. The tool is inserted into the handwheel gear. It must be adapted reliably so that in the process of turning it does not fall. Therefore, it is better to perform work with the assistant. Next, put on the pin the end head, the same diameter with the pin, join the lever and the extension cord (a piece of durable pipe). After that, they begin to twist slowly.
Important! The longer the extension can, the easier it is spinning.
People's automotive experience
The difficulty of dismantling lies in a specially selected durable compound, without a backlash. The fastener is tightly twisted. Practice the use of mounts, while slowly pressed on the back surface of the part.
When buying details, you need to have new mounts. You need a front gland, hinged belts. By purchasing you need to pay attention to the grooves and tags. They must be without defects. Otherwise, after a while you need to replace everything for a new one.
Important! When performing work, you need to pay attention to the crankcase ventilation system. When contamination, under the influence of overpressure, the gland will skip the lubricant. When arriving, you need patience and, as a rule, with 3-4 attempts manage to achieve the result.
Installing pulley on crankshaft
In order to correctly install the crankshaft pulley, it is necessary to lubricate it with a solidol or another viscous agent. This will facilitate the fasteners planting process. In order to wear, it is worth a little tilt to the side of the washer and stretch the base. Next, you can then tapping the movements of the hammer, through a soft, rubber gasket, process the hub. Then in the reverse order it is necessary to twist others made the car.
Important! If you are loosely planted to do in the groove, then everything will hang out, because soon it is necessary to replace the new one.
Why do special technological holes make in pulleys? In the auto repair shop for fixing the shaft there is a special device, which should be tied to the pulley with bolts and stall shaft.
If there are no special devices for fixing the shaft that is screwed to the pulley, then you need to put good anti-digit devices for the wheels of the car and put 4 transmission to the checkpoint.
Or, the third option - to get a moth in the teeth of the flywheel and fix the crankshaft from turning while unscrewing the pulley nut.
Another option, insert the pin in the pulley hole, and install the mount on the pin and the second stop, as in this picture. 
How to unscrew the crankshaft pulley
Depending on the design of the crankshaft, the pulley is attached to it or a nut, or a bolt. On cars S. rear wheel driveBasically, pulley is attached to a nut. 
The engines of some rear-wheel drive cars can be started with a special handle for which special protrusions are made to engage the handle. This handle is also called the "curve key", and the engagement for this key is called ratchet.
The pulley fastening nut is installed in size than 36 or 38 mm turnkey. Use the end key. The key is enhanced by welding the long handle or put on the handset to increase the "shoulder".
How to unscrew the pulley nut:
- Put cars on a pit or aleak.
- Raise manual parking brake.
- Include 4 speed on the checkpoint, put the stops under the wheels.
- Do not stick to the edges of the nut.
- Throw the end key, lengthen its pipe and disrupt the baked nut.
If the pulley nut is unscrewed:
- Transfer the handle of the box on the neutral.
- Throw off the candle wires with the candle so that the motor does not start.
- Put the end key on the nut and lengthen its pipe. Throw the key in such a way that the pipe rested into the ground or the spar of the machine on the right side to exclude the rotation of the pulley clockwise.
- We make a couple of short sharp turns of the ignition lock key to turn on the starter. Starter will start rotating the flywheel, the handwheel crankshaft, and the pulley is fixed with the key. In this case, usually an accurate nut quickly "leaves."
The crankshaft pulley with front-wheel drive is mainly fastened by a bolt. To remove the pulley of the crankshaft of the front-wheel drive car, you need to act in this order:
- Domkrat raise the front right side of the car. Laying the goselves, pecks or a pair of wheels with disks.
- Remove the wheel.
- Dismantle and remove the air filter with the case.
- Remove the protective casing.
- Loosen the belt tensioner and remove the generator belt.
- To fix the crankshaft, it is necessary to remove the cap in the clutch crankcase, after which insert the mount into the hole and overtake it between the flywheel's teeth.
- Now you have to put the end key, lengthen it with a pipe and try to try sharply counterclockwise. The main rip off the accurate pulley bolt.
If it does not work out from the place of the bolt, we use the revealing method by the starter. This method is above.
Useful advice from the locks who have been presented to a lot: to use a solvent or VD-40, or a similar means from the formation of Rust. After sprinkled on the thread (if the pulley is attached to the nut), it is necessary to wait minutes 15 minutes, then try to turn off. If the bolt, then on the threads to apply this tool is not easy, although around the bolt sprinkle, it is possible through microscopes a liquid will pass and the connection will take off.
Removing pulley
Unscrew the bolt or fastening nut - it is only a floor of the case. Next must be pulled out the pulley from the tree. So simply with the hands of the pulley, if not its landing socket does not break up. In addition, the pulley is tightly placed on the shaft, it is still fixed from the sponge sponge.
There are special pullers to remove pulleys from the shaft. There are mechanical and hydraulic pullers.
The design of the mechanical puller is simple. Usually, there are three legs that need to hook the pulley itself, and the central rod rest in the shaft. After that, you need to rotate the rod, the paws will straighten and pull the pulley. 
There are pullers even easier, which can be made with their own hands. 
If there is no removable pulley device, you can use mounts. If one person takes off, then in turn, on each side, moving on a little bit, so that there is no skew. If two, then at the same time with different sides, the pulley from the crankshaft is pressed by a sharp movement.
It also happens that when using the puller, the walls of the pulley groove are not maintained and numbered. Therefore, when using mounts, it should be engaged as close as possible to the shaft.
Installing pulley on crankshaft
In order to quickly install the pulley on the crankshaft, you need to check planting. If there are burrs, jackets, remove their sandpaper. If the old pulley is easily sisted on the shaft, then such a pulley is not suitable. He must sit tightly, sit down with a certain effort. Before installing the pulley, to reduce friction, it is necessary to lubricate with oil or lithol.
Video
In this video useful advicehow to unscrew the pulley fastening nut crankshaft Car motor.
An option to unscrew the crankshaft pulley bolt with a polyclinite belt.
How to remove the crankshaft pulley on the VAZ (2108, 2109, 21099, 2110, 2111, 2112, 2113, 2114, 2115).
How to Remove The Crankshaft Pulley Bolt. Bolted connection.
How to tighten the crankshaft pulley very quickly.
Removes the crankshaft pulley by Honda (Honda) without a key special.
No shaft in the car can work by itself, he needs elements that transmit torque to other components of a complex mechanism, and crankshaft pulley It is one of these links in a number of many gears. As with many other details, it also needs to be able to handle it, to replace it in time, if necessary.
Where is the crankshaft pulley and how to get it?
When you raise the hood cover and look at the engine, damper crankshaft pulley (as well as normal) is almost impaired. It hides the generator, however, looking down, where the belt stretches, you can see the disk, tightly fixed on the shaft of the hub. This is the desired detail. Pulleys are two species, usual and with a damper, and the last option is distinguished by the existence of an external massive ring separated from the main part rubber gasket, To reduce the vibration of the part. On the outer edge of the damper, the teeth needed to work are cut.
To remove the pulley, it is necessary to start freeing the locking bolt on the generator, then weaken the stretch, so that the belt is slightly slightly and get it possible to remove it. Disconnect the tank with antifreeze. Also may interfere with the steering hydraulic tape belt, so we find and unscrew the bolt on 14, which creates the tension of the GUR transmission, after which we remove the latter. The final step remains separating us from success, and the most difficult thing is to unscrew another one bolt, which fixes the pulley. You can find the fastener, only looking under the car under the right front wheel, and if there is a pneumatic wrench, the operation will be done without difficulty.
Why is it difficult to remove the gear pulley of the crankshaft?
In the absence of a special tool, remove the bolt, holding the gear pulley of the crankshaft, is very problematic, since the thread is cut in such a way that the reference direction coincides with the torque of the shaft when the engine running. However, it is precisely that this is the way out of the situation. It will take only a long key with a head to 19 (you can increase the pipe cutting), which rests on the ground against the rotation of the shaft. Perform small preparatory work - under the front wheels put wedges, and on the ignition coil disconnect the connector. What for? To use the starter as a mechanical effort attached to the bolt.
So, we did everything so that the car does not accidentally start and did not run away from the place, now all those present are pleased to move away, and they themselves climb into the cockpit (do not leave the legs dried out) and sharply, but briefly, turn the key to the start. With an unsuccessful attempt, we do not despair and repeat. Usually from the second time, less often with 5-6 approaches, the bolt turns. Now you can proceed to the next event - removing the hub of the pulley from the shaft, given that it sits tightly and holds the knap. When you need to tighten the bolt back, you need either make a lot of effort to tighten it, or still find the pneumo-robber.
Even if the crankshaft pulley bolt is removed, ahead is a lot of work
So, you have finally managed with the help of a starter or a pneumatic tool, remove the stubborn crankshaft pulley bolt. However, this does not mean that after a second the necessary item will turn out to be in your hands. The fact is that the hub is sitting on the shaft very tightly, in addition, the key will hold it from random slipping. The perfect option is to use a special puller, you can even the cheapest, Chinese production, the paws of this tool will get rid of you from the use of extra effort and spending time. As an option, an aerosol lubricant is injected, for example, WD-40, after which the hub of the crankshaft pulley gently swings with the burden on itself.
It is necessary to remove the pulley, so as not to damage the keypad, otherwise the item will sit be sureless, which will lead to the quick wear of the hub.
Another way, most often used by drivers - to remove the pulley, uplooking it around the circle of installation. If the usual car is too large, use motorcycle kanenic tools, M-shaped. In any case, the operation will require a lot of strength, so it is desirable that you have had an assistant. To put on a new pulley, happating something viscous, such as solidol, the place of planting the knaps (it is slightly tilting in the direction of the compensated hub), then cut the pulley with a hammer through a soft slim rubber gasket.
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Fixer-mechanic board
Flexible transfer and assembly of pulleys
The belt transmissions are divided into two main groups: transfers with flat belts and transmission by wedge-shaped belts. The plane transmissions are also divided into two groups: ordinary transmissions and transmissions with a tensioning device.
Ordinary transmissions are divided into three types: open, cross and semi-precious. Open transmission is used for parallel shafts. The parallel location of the shafts is the easiest and most convenient for the belt device and favorable for the belt. For each of the shafts, the pulley is worn through which the belt is thrown. In this case, both pulleys rotate in one direction.
If the direction of rotation of the pulley coincides with the direction of movement of the clockwise, they say that the pulley rotates clockwise, if it does not coincide, the pulley rotates counterclockwise.
In each pair of pulleys associated with belt transmission, leading and slave pullees are distinguished. The pulley, receiving movement from his shaft and transmitting his belt, is called the leading, and the driving movement from the belt and the shaft transmitting it - the slave.
In fig. 1, and shows an open belt transmission. The pulley oh is the leading. The arrow in the figure indicates that it rotates clockwise. The slave pulley 02 will also rotate clockwise.
If you need to get the rotation of the slave pulley to the side opposite to the rotation of the driving pulley, then enjoy the cross-transmission (Fig. 1, b). In this case, the presenter pulley 01 rotates clockwise, and the slave 02 will rotate counterclockwise. Shafts are parallel to each other.
If the shafts are located perpendicular to each other, then semi-sessive gear is used (Fig. 1, B).
Fig. 1. Types of belt gear: a - open, b - cross, in - semi-receptible, g - cross section Wedge-shaped belt, D - Rotation transmission scheme, C - cross section of a polyclinovoid belt
In the actuators of the machines, flat belts are leather, cotton wholecraft, cotton shied, woven and rubberized and wedges. In the machines are mainly used leather, rubberized and wedge-shaped. In fig. 1, g shows the section of a wedge-shaped belt: it consists of several rows of rubberized fabric, several rows of cord (thick twisted cotton threads), a layer of rubber and wrapper from rubberized tissue.
In fig. 1, D is a clinorem transmission. Each of the belts laid in the "His" groove on the rim pulley. At the same time, the belt is comfortable in the groove so much that does not concern its bottom with its lower surface.
Polyclinovoid belts were distributed. 1, e. These are endless flat belts, on the inner surface of which there are wedge protrusions made in the form of wedge-shaped belts (number from 2 to 36). These protrusions are included in the appropriate pulley depressions.
The main disadvantage of the belt is the slip of the belt depending on the belt tension and the magnitude of the arc on which the belt covers the pulleys. With different diameters of pulleys in the worst position there is a smaller pulley, which has a small belt coverage.
To increase the belt tension and the amount of coverage in smaller pulleys, stretch rollers are used (Fig. 2, a). The diameter of the tension roller is taken equal to 0.8 - 1.0 diameter of a small pulley. It is located on the slave branch at the small pulley. Due to the severity of the roller, and if necessary, and additional cargo or spring, constant belt tension is carried out. It provides a large angle of the pulley belt coverage, improves the conditions of the transmission, allows you to reduce the mid-scene distance.
In all types of belt gears, a tension shaft is used. The belt tension is performed periodically by moving one of the shafts (Fig. 2, B, B).
Belt Tension Methods:
- The electric motor with a small pulley is mounted on a salazzo and can navigate them. Tension is performed by screw; With a swinging plate. The stove is fastened to be hinged, its position is fixed with a screw. The tension is carried out due to the gravity of the engine and the stove; Using cargo. The load pulls one of the shafts and provides automatic tension control.
Fig. 2. Ways of belt tension: A - tensioner rollerb - sled with installed engine, B - Sylon of gravity of the electric motor installed on the swing plate
The first two ways are used in all types of technological equipment for any belt gear. Flat belts after hoods are shortened with subsequent stitching and gluing.
Assembling pulleys. Pulleys are usually made of cast iron or steel. They are performed or with spokes, or with a solid disk, in which holes can be made to reduce pullea mass. Pulleys can be solid and split. At the location of the pulley at the end of the shaft, one-piece pulleys are used, and the location between the bearings is detachable.
Pulleys are single-stage and multistage. There are several steps of different diameters on a multistage pulley.
Pulleys for clinorem transmission in design differ from smooth pulleys only by the presence of prismatic grooves on the rim.
Workers are permanent pulleys mounted on the shaft with a tight or intense landing. If the pulley is installed on a cervical bearing protruding from the bearing, it may be conical (Fig. 3, a) or cylindrical (Fig. 3, b) with a prismatic or wedge knap. The cylindrical shaft with a prismatic key makes a bin (Fig. 3, c) to fix the position of the pulley, and so that the pulley does not move during operation, it is additionally attached to the nut (Fig. 3, d). If the pulley is attached by a wedge knap (Fig. 3, c), then no additional attachment is required.
The pulley installation on a wedge key is applied only in low-kind and irrelevant transmissions, when it does not require an accurate fit, since the wedge knock shifts the axis of the hub, and with a small length it appears, which is unacceptable in high-speed heavy loaded transmissions. When using a prismatic key, the remnant of the pulley hub axis is significantly less and such compounds are more accurate.
If high accuracy is required, used slot compounds - (Fig. 3, d). With this form, the plug connection is centered better than on the keys, the strength increases and the landing site is less.
Fig. 3. Schemes for assembling pulleys on the shafts: a - at the conic end of the shaft, b - on the cylindrical end of the shaft with a key with a key, in - Installing pulley with a wedge knocker fixing, g - landing pulley on a slotted shaft; 1 - shaft, 2 - swing, 3 - locking screw
For planting pulley, screw devices are used for shaft, such as tie brackets. The detachable clamp (Fig. 4) is put on the shaft and rest in his bin. Then the thrust passes between the spokes of the pulley, and to the end of the hub of the pulley under-put the bar into which the screw rests. Turning the screw and hitting a slightly through the lining in different places along the outer surface of the hub, gradually the pulley on the shaft is gradually. Strokes eliminate the plot of pulley on the shaft due to possible distortions.
Deligative pulleys can be installed anywhere on the length of the shaft. The assembly of the pulley is to connect the two halves with studs. Checking the correctness of the landing of pulleys on the shaft comes down to testing.
The pulleys' beating causes rapid wear of bearings, and the gears of accurate high-speed metal-cutting machines contribute to the increase in vibrations that increase the surface roughness of the processed parts. The causes of the pulleys are: a bending of the shaft, incorrect mechanical processing of pulleys and improper landing to the shaft when assembling.
Fig. 4. Scheme of landing pulley using a coupling bracket A - on beating, b - mutual parallelism of shafts with a cord with weights, in - metal line, r - cord; I - arrows, 2 - weight, 3 - pulleys
Fig. 5. Schemes for checking the assembled pulley:
Pulleys beating are checked by raysmas-hell or indicator. When checking the test indicator, the countdown is conducted on the dial. ADICATOR (Fig. 5, a), and when checking the pulp, the value of the beyon is determined by the dipstick.
Check two parallel shaft using the arrows and a plumb (Fig. 5,6). At the ends of the shafts, the arrows are strengthened, the ends of which come into contact with the cord. When turning the shafts 180 ° arrows must come back again with the cord. Verification is also performed using a ruler - Fig. 5, in, with a cord - Fig. 5, g (when tightening the cord between the rims of pulleys and the cord, there must be the same gap).
After checking on the beat, the belt is put on. For this pulleys rotate manually. First, the belt is put on the lead pulley, then on the slave. For wear, enjoy hooks or tips.
