On VAZ-2109 cars, only one engine mount is used, the other two are installed on the gearbox. With the help of these simple devices, made of metal and rubber, vibration is eliminated and their level is significantly reduced. These vibrations come from the engine and are transmitted to the body.
Any motorist can make the replacement with his own hands. No difficulties arise during the work. Replacing airbags can significantly increase the service life of both the car itself and its individual components. And the most important thing is that you will get rid of various kinds of noise and vibrations that arise during engine operation.
Features of pillows
On Lada-2109 cars, airbags are used, the functioning of which has the following features:
- There are many designs of supports, they are able to reduce the level of vibrations, therefore, during production, all values of the loads that act on them are taken into account.
- These components are constantly under the influence of load, and their direction and magnitude changes many times.
- The only constant load is the mass of the engine itself. But during the start of movement, several other forces arise, acting in different directions.
- When reversing, the same forces act on the airbags as when starting, but they are directed in the opposite direction.
During sudden acceleration, braking, or driving over uneven surfaces, a lot of forces are necessarily exerted on the engine mounts. In the manufacture of cushions for Lada-2109 cars, only natural rubber is used, as well as high-grade rubber. In addition to rubber elements, the supports consist of steel frames and heavy-duty adhesive. They operate at temperatures of -40…+70 degrees.
Tuning of VAZ 2109 engine fixation
An available tuning element that can be used to mount the motor and make it more rigid is to replace the factory standard mount with a product with a rubber support part and a more rigid body. This device allows you to:
- Reduce engine movement as much as possible when braking, abruptly starting the car, or hitting bumps.
- Protect the transmission from self-switching off.
- Increase the service life of drive wheel drives in the exhaust system.
- A bright tuning part will be installed under the hood.
Tuning part for VAZ 2109 engine fixation
Installing an additional fourth mount will increase engine rigidity. It connects the cross member of the front suspension of the VAZ 2109 car and the clutch housing. When installing an additional support, you must find another location for the ignition module and install a new bracket. The components of the assembly are shown in the photo.
Additional support for VAZ 2109
Installation instructions include:
- Dismantling high-voltage wires for spark plugs.
- Disconnecting the wire connectors from the vehicle ignition module.
- Unscrewing the fastening to the clutch housing of this module.
- The remaining three nuts holding the module are unscrewed, which is then removed.
- The ignition module is mounted in another place and a new mount is installed.
- The fourth support bracket is fixed to the cross member of the front suspension.
- The bolt is inserted into the hole on the terminal clamp, the nut is installed and screwed two turns.
- The lower head of the rod is installed in the support mounting eye.
- A bolt is inserted into the eyelet and support, and the nut is tightened.
- The size of the rod is adjusted until the hole in the clutch housing and the hole on the upper head coincide.
- Another bolt is installed.
Installation of the fourth engine support of VAZ 2109
- The rod head and clutch housing shield are attached through a spacer sleeve located on the support.
- All bolts are tightened.
- The bracket is attached, all bolts are tightened.
When installing the fourth support, the price of engine mounting will increase, but the reliability of mounting the engine of the VAZ 2109 will also improve.
Factors affecting the resource
The price of VAZ-2109 engine mounts is about 500 rubles. Most experts recommend choosing only products that are recommended by the car manufacturer. But there are several factors that affect the resource of these elements:
- Natural production. All elements, including pillows, have a maximum service life. And hardly anyone can surpass him. They are not able to develop a full resource for reasons that will be discussed below.
- VAZ-2109 cars experience very high mechanical loads when driving on uneven roads, colliding with curbs, etc. And this significantly reduces the service life of the engine mounts.
When do you need to change engine mounts on a VAZ 2109?
All products have a warranty period, after which they may fail. Rubber ages, its natural wear occurs, after which the VAZ 2109 needs to replace the engine mount. There are emergency situations where rubber supports fail. This could be the consequences of an accident, an unexpected collision with an obstacle, an encounter with a sewer hatch in the path of a car, and many other reasons. Factors for replacing products are:
- Body vibration.
- A knocking noise that occurs when the car starts or brakes, when changing gears is difficult or when accelerating quickly.
- Difficulties may arise when replacing the timing belt. This is due to the fact that a sagging engine “approaches” almost close to the right mudguard, which interferes with servicing the car’s engine and removing the timing belt cover.
- The load on the CV joints may increase due to severe sagging of the engine, on the axle shafts on which they change the geometry of the work, which greatly reduces the service life of the products.
- The appearance of a subtle knocking sound in the backstage area. This is due to the fact that due to sagging of the engine, the gearbox slider may touch the anti-roll bar housing.
- If you do not replace the engine mount in a timely manner, the cost of subsequent repairs will increase significantly.
How to change the front airbag for a VAZ 2109 engine
The instructions suggest replacing the front support on level ground. There is no particular need to place the car on the inspection hole. To carry out the robot you need to prepare:
- New front airbag.
- Set of socket heads.
- Jack or hoist.
- Socket wrenches.
- Collar.
- Ratchet.
- A product that can be used to remove rust, if necessary.
The work is performed in the following sequence:
Advice: Before starting operations, you need to carefully treat all fastener connections with a rust removal solution; this will make it easier to disassemble the components.
- The engine splash guard is removed.
- Using a socket, you need to “undermine” the bolts that secure the front engine mount on a VAZ 2109 car.
- The motor rises.
Tip: You need to lift the motor carefully, slowly, you need to make sure that the wiring and pipelines are not damaged. All other operations are more convenient to perform with a ratchet wrench.
- The nut mounted on the long bolt, which connects the front support to the body bracket on the cross member, is unscrewed. To do this, it is better to use two keys, as can be seen in the photo.
The nut located on the long bolt is removed
- Using a jack or hoist you need to “play” with the body. Then as soon as the general one you can easily pull out the bolt.
- The bolts securing the cushions to the engine block are removed.
- All bolts are removed.
- The old support is removed.
The old support is removed
Tip: Once the old support is removed, mark its top with any mark, this will help to correctly install the new support pad.
- A new rubber cushion is installed.
- The bolts are being baited. Their installation is controlled, the fasteners are tightened a little, but not completely.
- The jack is lowered to the initial position or the tension of the hoist cable is reduced.
- All bolts are finally tightened.
Tip: Before assembly, you need to clean all fasteners from rust and lightly lubricate the threads with a grease like Litol-21 or graphite-based lubricant.
How to replace the front engine mount of a VAZ 2109 is clearly visible in the video. With the timely installation of new mountings for the engine of a VAZ 2109 car, its service life in good condition increases.
What to look for when purchasing
Before purchasing, be sure to look at the quality of the product - there should be no damage to the metal parts - dents, cracks, paint damage. Rubber components should also not be damaged - no cuts or cracks on them are allowed.
If you plan to tune the engine, then you need to buy reinforced cushions - only they can withstand increased loads on the suspension. It is also recommended to supplement the design with at least one more support - this will significantly improve the operation of the car.
Ways to increase the rigidity of engine fixation on the body of a VAZ 2109
To prevent the VAZ 2109 cushion from being replaced frequently, and to increase the rigidity of the power unit, instead of the standard support, a more advanced part is installed, which has a rigid body and a rubber part inside.
Minimize the movement of the motor when braking, hitting bumps on the roads, or abruptly starting the car. With its help, you can avoid self-switching off the transmission. Increase the resource in the exhaust system and drive the drive wheels. Improve the design of the engine compartment. You can increase the rigidity of the motor by installing an additional fourth support . Its purpose is to connect the clutch housing to the cross member of the front suspension of the VAZ 2109. When installing the device, it is necessary to install a new bracket and find a place for the ignition module. The work procedure includes: Dismantling the VP for spark plugs. Disconnecting the wire connectors from the ignition module of the car. Disconnecting the clutch housing of this module from the cylinder block. The remaining three nuts securing the module are unscrewed, which is then removed. The ignition module takes a different place and new fasteners are installed. A bracket for mounting the fourth support is attached to the cross member of the front suspension. A bolt is installed in the hole on the terminal clamp, the nut is placed and screwed initially by two turns. The lower head of the rod is inserted into the support fixing eye. The bolt is installed in the eye and support, the nut is tightened. The size of the rod is adjusted until the holes in the clutch housing and on the upper head coincide. Another bolt is installed.
Before replacing the engine mount, which is also the front engine mount on a VAZ 2109, I recommend reading about what engine mounts are, what they are needed for, and also about the signs of mount malfunction.
When to replace
Before carrying out repairs, you need to completely inspect all motor mounts and identify those that need replacement. They cannot be repaired - these are elements that cannot be restored. And if they are broken, then only installing new ones will help. Replacement of VAZ-2109 engine mounts is carried out in the following cases:
- In the presence of strong body vibrations. If you feel vibration, you need to diagnose the supports. This behavior of the car can be caused by various reasons. But the failure of the pillows is the main one.
- In the case when the timing belt is being replaced and it is not possible to remove the cover that protects the compartment, it is necessary to completely dismantle the cushion in order to slightly lift and move the engine to the side.
- If the mass of the motor has a strong effect on the CV joints, and their geometry changes significantly, this leads to the fact that the life of the cushions is reduced.
- Sometimes an almost imperceptible knock appears near the scenes. This is the first sign that the engine has sunk. In other words, the engine mounts are not working correctly.
If the pillows are not replaced, this will result in more serious consequences and expensive repairs. Therefore, it is necessary to replace the pillows as soon as the first signs of their breakdown are discovered. It is impossible to delay repairs, as this will lead to destruction of body elements, damage to the engine and deterioration in the comfort of the driver and all passengers.
What influences the replacement
There are two main factors that force motorists to replace airbags.
- Natural wear and tear. Each pillow has its own service life, exceeding which is very rare. Often they don’t work it out for the second reason.
- Mechanical impacts leading to breakdowns. These are our roads, potholes, accidents, collisions with manholes, etc.
Article on the topic: Location of sensors on the VAZ 2110 injector (8 valves)
When replacement is required
There are several factors you should know about replacing engine components.
Situation | Peculiarities |
Body vibration | If you feel vibration in the body, you should definitely check the condition of the supports. This effect can be caused by various reasons, but pillows are one of the main |
Replacing the timing belt | When replacing a belt, removing its cover can be very difficult, since the engine is almost tightly pressed to the right mudguard of the front wheel. You have to remove the pillow in order to fully carry out repairs. |
The engine sags, loads the CV joints | Due to the impact of the engine weight on CV joints, their geometry changes, which leads to a significant reduction in the service life of the elements. The resource is reduced, it is necessary to carry out replacements ahead of schedule |
There is a knocking noise in the backstage area | It may be barely noticeable. But its presence indicates that the engine has sagged. Consequently, the supports do not work properly and need to be replaced |
If you do not replace the supports in a timely manner, this will lead to more serious consequences and expensive repair of the breakdown. Therefore, it is better to replace the pillows when primary signs of wear are detected. To do this, we additionally recommend periodic inspection of the unit.
Replacement procedure
Some may wonder how many engine mounts there are on a VAZ-2109. In fact, there is only one, but the total number of engine and gearbox mounts is three. To replace the rear cushion, perform the following steps:
- Place the car on a viewing hole or overpass.
- Secure the car using special wheel chocks, and be sure to set the handbrake.
- It is advisable to disconnect the negative terminal from the battery.
- Using a spanner, you need to unscrew the nut that secures the airbag to the body.
- Unscrew the nuts securing the support bracket to the gearbox housing. There are only three nuts located there.
- Remove the old cushion, first remove all the bolts.
- Install the new cushion and tighten all threaded connections.
Replacing the left side airbag is done in approximately the same way, but you will have to remove the left mudguard on the engine. If there is protection, it must also be removed.
How to replace a VAZ 2109 engine mount
So:
- The upper nut holding the support is unscrewed.
- The two bolts securing the element to the bracket are turned out.
- The bolts located under the wheel arch, which connect the bracket and the spar, are unscrewed (see Replacing the front spar on your own).
- The bracket for the right support of the VAZ 2109 is pulled out of the car.
- On a VAZ 2109 car, the rear engine mount is replaced with a new part and mounted back to disassembly.
How to replace the left engine mount of a VAZ 2109 car
So:
As in the previous case, the upper support fixing nut is unscrewed. But on this side the engine goes down.
Advice: Before starting work, you need to prepare a stand on which the gearbox will rest.
- The engine must be lowered onto a stand.
- Pull out the upper support washer.
- Unscrew the bolts holding the element.
- Remove the left support for the VAZ 2109 engine.
- The lower washer is pulled out along with the pin.
- The left engine mount of the VAZ 2109 is replaced with a new part, and further assembly is carried out in reverse to disassembly.
How to replace the rear support of a VAZ 2109 car
So:
- On a VAZ 2109 car, replacing the engine mount begins with unscrewing the nut holding the rear mount to the body.
- The fixation of the engine mount to the gearbox is released.
- The support is removed.
Removing the rear support of the VAZ 2109
The rear supports may be equipped with a bracket or not. The product is a cast one-piece element, with all the necessary holes for mounting the support. The ribs located on the inside of the product help increase the reliability and rigidity of the product. The upper motor fixation bracket is an intermediate part between the flexible rod and the motor support. With its help, the angle of attachment of the engine mount to the body is changed and the structure is strengthened:
Tip: If the engine mount was purchased without a bracket, the part must be rearranged from the previous device. To do this, its bolt is unscrewed and the bracket is installed on a new support.
- Installation of the new part is carried out in the reverse order.
- The unit is reassembled after disassembling it.
How to correctly replace a VAZ 2109 engine mount can be clearly seen in the video.
How to replace VAZ engine mounts
The most difficult thing is done first, the easiest thing is done towards the end. If in cases with the side and rear engine mounts you have to deal with natural wear and tear after a certain time, then the front VAZ engine mount may be subject to such an operation more often due to its location in an emergency-hazardous place.
Any light poke may cause the impact to fail for support, and replacement of the front airbag may be required immediately. The tools required to replace the front engine mount are few and simple: a jack to adjust the height of the power unit, a socket wrench, a ratchet, a metal brush to remove dirt and rust, a 17mm spanner, Litol or graphite lubricant to prevent metal parts from wear and tear. showdown.
Replacing VAZ engine mounts does not require a pit or a lift, which are highly desirable when working on a side support. The motor needs to be jacked up a little to have a stable support, then treat all mounting points with an anti-rust solution, after cleaning it with a wire brush. Move the fastening from its place with a spanner and then, for ease of work, engage in the process with a ratchet.
It is recommended to start removing the bolts with a long bolt located in the center of the rubber part; it must be pulled out not completely and the position of the motor must be fixed for ease of centering of the parts during assembly.
After dismantling, it is necessary to mark the top of the old support for the correct positioning of the newly installed part. Assembly must be carried out in the reverse order, all fastening parts having been pre-treated with Lithol or graphite lubricant.
The feeling of driving a VAZ-2109 after replacing the airbags will remind you of the first days of owning a new car, the comfort and integrity of the car will return to the previous level.
And the opportunity to do something with your own hands always brings deep satisfaction to the car owner and increases self-esteem.