Many VAZ 2107 owners, in order to save on car service costs, master some repair and maintenance operations for their car. Sometimes during such operations it is necessary to remove the crankshaft pulley VAZ 2107 9) injector. The article provides detailed instructions and attaches a video that talks about replacing the crankshaft pulley when there is an oil leak.
Why is it difficult to remove the pulley?
No. 1. Depending on the engine design, make and model of the car, the difficulty of removing the pulley varies. Some machines have a lot of space to comfortably carry out repair work, while others have very little free space. The pulley design elements cover the pulley.
The structure of pulleys is also different, there are 2 types:
- ordinary;
- damper
Damper pulleys have an additional outer ring with an elastic band in their design, which absorbs vibrations and micro-vibrations.
Before you start removing the pulley, you need to loosen the tension nuts and bolts, remove the generator and power steering belt.
No. 2. In the factory assembly, the pulley is seated on the engine crankshaft, pressed with a bolt or nut and tightened with high compression force. Thus, the factory assembly is very strong. Therefore, if you have never removed the pulley, it will be more difficult to dismantle it the first time.
In addition to tightening with the maximum permissible force with a special torque wrench, during operation, the engine becomes very hot, the threaded connection is tightened even more and sticks. And external factors influence the outside, due to which the threaded connection may be subject to corrosion.
Some engine models cannot be repaired; they are disposable. These are, for example: 1AZ-FSE, 3UZ-FSE. Each power unit was examined in detail.
No. 3. If you disengage the clutch, the engine crankshaft can be freely turned with a wrench. Therefore, in order to unscrew the crankshaft pulley nut, you need to stop the shaft from turning. If, when you press the clutch, the speeds do not change, then it is not working. Air may have entered the system. In this case, you need to bleed the clutch.
Why are special technological holes made in pulleys? In auto repair shops, there is a special device for fixing the shaft, which must be bolted to the pulley and the shaft locked.
If there is no special device for fixing the shaft, which is screwed to the pulley, then you need to install good anti-roll devices under the wheels of the car and put 4th gear on the gearbox.
Or, the third option is to rest a pry bar against the flywheel teeth and fix the crankshaft from turning while unscrewing the pulley nut.
Another option is to insert a pin into the pulley hole, and install a pry bar around the pin and the second stop, as in this figure.
Second dismantling method
There is another tricky way to unscrew the crankshaft pulley. It is done independently without the presence of an assistant. Having previously removed the generator drive belt, put a head or a spanner on the bolt of the mechanism, the handle of which rests on some surface.
You should not rest it against the body or other parts of the engine compartment. When unscrewing, the key can damage units with rubber pipes, scratch and even damage the body. In the future it will become clear why. It is best to rest the key handle on the ground or floor, placing a wooden board under it. The main thing is that there is a hard and smooth surface. If the key does not reach the stop, then by moving the head or rotating the crankshaft, rest it against a hard surface.
Now, turning on the ignition, you need to crank the engine with the starter. Its force is more than enough to break the pulley fixing bolt. The main thing is not to overdo it and properly rest the key so that it stands firmly in place and does not wobble. Even a slight displacement will cause it to jump off the bolt head and damage the engine compartment. Under no circumstances should you start the engine, and if you do manage to do so, turn it off immediately.
To prevent the engine from starting, you can remove the fuel supply hose from the fuel pump to the carburetor if it is a carburetor engine, or the hose entering the fuel rail if the engine is injection.
How to unscrew the crankshaft pulley
Depending on the design of the crankshaft, the pulley is attached to it either with a nut or a bolt. On rear-wheel drive vehicles, the pulley is usually secured with a nut.
The engines of some rear-wheel drive cars can be started with a special crank, for which special protrusions are made for engaging the crank. This handle is also called a “crooked wrench,” and the engagement for this wrench is called a ratchet.
The pulley fastening nut is installed with a size of 36 or 38 mm on a wrench. Use a socket wrench. The key is strengthened by welding a long handle or putting on a tube to increase the “shoulder”.
How to unscrew the pulley nut:
- Place the car on a pit or overpass.
- Apply the hand parking brake.
- Turn on 4th gear at the gearbox, put chocks under the wheels.
- Do not tap too hard on the edges of the nut.
- Throw on a socket wrench, extend it with a pipe and remove the stuck nut.
If the pulley nut does not come off:
- Move the gearbox handle to neutral.
- Remove the spark plug wires from the spark plugs to prevent the engine from starting.
- Place a socket wrench on the nut and extend it with a pipe. Place the wrench in such a way that the pipe rests against the ground or the machine spar on the right side to prevent the pulley from turning clockwise.
- We make a couple of short sharp turns of the ignition key to turn on the starter. The starter will begin to rotate the flywheel, the flywheel will rotate the crankshaft, and the pulley will be secured with a key. In this case, the stuck nut usually “comes off” quickly.
The crankshaft pulley on front-wheel drive vehicles is generally secured with a bolt. To remove the crankshaft pulley of a front-wheel drive car, you must proceed in this order:
- Raise the front right side of the car with a jack. Place a trestle, stump or a pair of wheels with rims.
- Remove the wheel.
- Dismantle and remove the air filter with housing.
- Remove the protective cover.
- Loosen the belt tensioner and remove the alternator belt.
- To fix the crankshaft, you need to remove the plug in the clutch housing, then insert a pry bar into the hole and rest it between the flywheel teeth.
- Now you need to put on the socket wrench, extend it with a pipe and sharply try to turn it counterclockwise. The main thing is to remove the stuck pulley bolt.
If it is not possible to remove the bolt from its place, then we use the method of unscrewing it with a starter. This method is shown above.
Helpful advice from locksmiths who have seen a lot: use solvent or WD-40, or a similar rust preventative. After spraying it on the thread (if the pulley is secured with a nut), you need to wait 15 minutes, then try to unscrew it. If it’s a bolt, then it’s not easy to apply this product to the threads, although if you spray it around the bolt, it’s possible that liquid will pass through the micro-cracks and decarbonize the joint.
For LADA cars with automatic transmission
How to unscrew a pulley
automatic crankshaft? If an automatic gearbox is installed, then on a rear-wheel drive vehicle the “Parking” gear is set. The handbrake is turned on and then the element is unscrewed in the same way as on a manual gearbox. It is more difficult if the car is front-wheel drive. In this case, it will not be possible to remove the element as if it were a manual transmission (with the gear engaged and the brake pressed).
There is a high risk of damaging the gearbox. In this case, you need to lock the crankshaft so that it cannot rotate in any other way. Insert the assembly between the teeth of the engine flywheel ring gear through the hole in the gearbox bell. It is supported so that it cannot jump off and damage the teeth on the flywheel. In some cases, to get to the flywheel, you need to unscrew the engine starter. To do this, you will need an inspection hole, a lift or an overpass.
Work related to replacing the engine timing belt, crankshaft and camshaft toothed pulleys, the engine front oil seal, as well as the generator drive itself, requires dismantling the crankshaft
. This element is found on both domestic cars and foreign cars. Actually, most motorists have a question: how to unscrew the crankshaft pulley? And to be even more precise, the fixing bolt on the crankshaft flange, and in which direction to turn the key. Let's consider.
Pulley removal
Unscrewing a fastening bolt or nut is only half the battle. Next you need to pull the pulley out of the shaft. The pulley cannot be removed easily by hand unless its seat is broken. In addition, if the pulley fits tightly onto the shaft, it is also secured against turning by a key.
There are special pullers for removing the pulley from the shaft. There are mechanical and hydraulic pullers.
The design of a mechanical puller is simple. Usually it has three legs, with which you need to hook the pulley itself, and rest the central rod against the shaft. After which, you need to rotate the rod, the legs will straighten and pull the pulley towards you.
There are even simpler pullers that you can make yourself. If there is no removable device for the pulley, then you can use pry bars. If one person is filming, then take turns, moving it a little on each side so that there is no distortion. If there are two, then at the same time, from different sides, the pulley is pressed out from the crankshaft with a sharp movement.
It also happens that when using a puller, the walls of the pulley grooves cannot withstand and break off. Therefore, when using pry bars, they must be engaged as close to the shaft as possible.
Engine VAZ-2106
We carry out the work on an inspection ditch or a lift.
Remove the engine splash guard (see “Removing the engine splash guard”).
By engaging 1st gear and braking the car with the parking brake.
Using a 38 wrench, unscrew the nut securing the crankshaft pulley.
Remove the coolant pump drive belt (see “Adjusting the tension and replacing the coolant pump drive belt on a car with a VAZ-2106
» ).
Using a spatula, move the pulley from the toe of the crankshaft.
Use a screwdriver to pry off the front crankshaft oil seal.
and remove it from the socket in the camshaft drive cover.
Lubricate the working edge of the new oil seal with engine oil.
and press it in with a socket head (or a piece of pipe) of a suitable diameter.
How to remove a pulley and front cover from a VAZ classic engine
We install the crankshaft pulley in the reverse order, orienting it so that the key on the toe of the crankshaft fits into the pulley groove.
Video
This video contains useful tips on how to unscrew the nut securing the pulley to the crankshaft of a car engine.
An option for unscrewing the crankshaft pulley bolt using a poly V-belt.
How to remove the crankshaft pulley on a VAZ (2108, 2109, 21099, 2110, 2111, 2112, 2113, 2114, 2115).
How to remove the crankshaft pulley bolt. Bolted connection.
How to tighten a crankshaft pulley very quickly.
Removes the crankshaft pulley on a Honda car without a special key.
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Tools for work
In the case of a manual gearbox, the crankshaft pulley bolt can be unscrewed using a spanner or socket. It's better to take a regular wrench. In most cases, the ratchet cannot withstand such a load (even if it is the strongest) and as a result falls apart. It is not recommended to use an open-end or gas wrench when dismantling the crankshaft pulley.
The first tool may break, but the second will only damage the edges of the bolt, and next time it will be even more difficult to unscrew it. In case of severe damage to the edges, you will have to drill it out and remove it in parts, which will be unpleasant for a LADA car. This will increase the time it takes to replace the element.
Replacing the front crankshaft oil seal
In my case, everything was simple, since the engine was removed from the car and replacement was not difficult. I used the same puller to pry it from the inside of the oil seal and carefully pulled it out:
- The seat must be cleared of deposits
- Then take a new oil seal and lubricate its working surface with engine oil.
- Press it into place. To avoid distortions, use the old oil seal, placing it on the new one, and carefully punch it in a circle with a hammer.
Now you can install the pulley in place, making sure it is correctly installed on the key. The procedure can be considered completed, and VAZ 2106
ready for use!
I forgot to mention the price of the seal. For a VAZ “classic” it is about 100 rubles. Good luck with the renovation!
Every second car enthusiast who tries to repair his favorite four-wheeled friend with his own hands has encountered the problem of how to remove the crankshaft pulley. After reading the instructions in the maintenance and repair manual, at first glance, the procedure does not seem complicated, however, when you first try to unscrew the ill-fated bolt, it turns out that this is not so easy. It is completely unclear how to fix the crankshaft so that it does not rotate. Another problem is where is the best way to get to the treasured bolt. Removing the crankshaft pulley causes a lot of trouble because it is too tight. There is a high probability of damaging many parts of the engine compartment or the paintwork of the body.
The problem is that the crankshaft pulley bolt (or nut, depending on the model) is tightened with great force during installation. This is done so that it does not unwind spontaneously, since if unscrewed, serious damage and expensive repairs cannot be avoided. The degree of tightening gradually increases as the engine operates and is aggravated by sticking, coking, and corrosion.
In reality, the entire dismantling process can take 10-15 minutes, but there are some techniques you need to know and use. Different motor models use either a bolt or a nut to secure the pulley. Each option should be considered.
How to unscrew the crankshaft pulley nut?
The nut at the end of the crankshaft holding the pulley is a sign of the engine of a classic rear-wheel drive car like VAZ from model 2101 to 2107, “Niva” and the like. Such a nut is also called a “ratchet”, since it can have ledges for a “crooked starter”.
It is better to do the work above the inspection hole. The crankshaft should be secured by placing the gearbox in 4th gear and applying the parking brake. You should stock up on the following tools in advance:
- socket or socket wrench 36 (or 38);
- lever extension in the form of a piece of pipe.
While under the car, try to unscrew the nut with a wrench with a sufficiently long lever. If the attempt is unsuccessful, put the gearbox in neutral and proceed as follows:
- the candlesticks are removed;
- while in the pit, install the key and extension so that the end rests on the floor or spar as the shaft rotates;
- turning the key in the ignition switch gives a short-term impulse.
As a rule, on the first or second attempt the nut comes off and is then unscrewed with a regular wrench. Don't forget to loosen and remove the alternator belt.
Reasons for removing the crankshaft
As a rule, it is necessary to dismantle the VAZ 2114 crankshaft pulley in three main cases:
- When replacing shaft seals (you can tell that it’s time to change them by oil leaks at their locations).
- For a number of repairs related to the gas distribution mechanism (for example, when replacing a belt).
- When replacing the pulley itself (however, it is quite rare to remove it for this very reason, because serious wear of the pulley is an infrequent occurrence).
But, be that as it may, it’s quite difficult to remove the pulley correctly for the first time without breaking or losing anything. This is caused by a number of inconveniences, for example, the hard-to-reach location of this part, which causes significant difficulty in unscrewing the fasteners (a long socket wrench or a socket with a large extension is most suitable for this operation).
Crankshaft bolt VAZ 2114
In addition, the pulley threads are tightened at the factory using mechanical impact wrenches with the maximum permissible force in order to prevent spontaneous unwinding. For obvious reasons, it is unlikely that such fasteners can be easily unscrewed “by hand” (in addition, the right-hand thread during engine operation works in the direction of tightening, further aggravating this situation).
When starting to dismantle the crankshaft pulley, be sure to stock up on WD-40 or kerosene - without them, this operation may end in failure.
Although the crankshaft pulley
- an element with a colossal margin of safety, which practically does not require repair or replacement; sometimes it still has to be dismantled.
In today's article we will talk about how to remove
the crankshaft pulley of a VAZ 2114 and why to do it.
Crankshaft pulley VAZ 2114
Why might difficulties arise?
Removing a pulley is a difficulty in itself, even for a specialist, let alone a beginner. Difficulty may arise when removing the bolt or nut connecting the pulley and crankshaft. The fact is that the direction of the thread when unscrewing it coincides with the direction of the torque during engine operation. Thus, while the engine is running, the bolt is constantly tightened, which results in a serious problem when removing the bolt. Difficulty can also arise if you do not have the right tool.
How to unscrew the crankshaft pulley bolt?
The bolt holding the pulley is predominant in motors in front-wheel drive cars, when the block is located perpendicular to the axis of the car. In this case, you will have to tinker more, since it is more difficult to get to the bolt. To work you should prepare:
- jack;
- “tragus” (stump);
- a socket to the size of the bolt with an extension and lever;
- set of automotive tools.
In search of an answer to the question of how to remove the crankshaft pulley, many car enthusiasts begin to look for an opportunity to do this without prior preparation. By definition, such attempts cannot be successful.
In order to correctly remove the pulley, you must perform the following manipulations:
- the right front part of the car is lifted, the wheel is removed;
- the car is installed on a “tragus”;
- From the top side of the hood, all parts that impede access are removed: the air filter and the engine mudguard;
- the alternator belt is removed;
- to fix the crankshaft, the plug on the clutch block is opened and a pry bar is inserted into the resulting window to lock the flywheel teeth;
- under the wheel arch, a head with an extension and a lever is put on the pulley bolt;
- the bolt is unscrewed counterclockwise.
In the vast majority of cases, the bolt can be unscrewed. If it does not give in, then you can add the length of the lever. If this does not help, then you should use the help of the starter as described for the pulley nut in the “classic”.
