How to replace engine mounts: using the example of a VAZ 2110

Each individual VAZ 2110 engine mounting mount and all of them together are designed to provide reliable mounting while simultaneously vibration isolating the engine and gearbox on the vehicle.

Therefore, if, while driving over bumps, when changing gears or during other actions, you begin to feel vibrations and characteristic tapping and creaking in the engine area, as if the pieces of iron are hitting each other, indeed, it is the motor mounts that should be suspected.

Engine support cushion

On the VAZ 2110, the cushion is a rubber-metal part such as a silent block. On one side this part is attached to the body, on the other - to the engine cylinder block. They hold not only the engine, but also the gearbox.

This design has proven itself well - it is reliable and not expensive. But - as long as the pillows are not destroyed.

Design difference

On a VAZ 2110, the engine is usually held by three or four points at the bottom, and two or three at the top. But you should know that the 8 valve engine has a rear engine mount. The 16 valve does not have it, but it has additional supports.

Self-adjustment of VAZ 2110 valves is discussed here:

Rear support cushion for 8-valve engine

But in general, their replacement is similar.

By the way, if desired, additional support can also be installed.

Design features of the pillows of the eight-valve VAZ-2110 engine

Before you start checking and replacing engine mounts, you need to know one important thing: eight-valve and sixteen-valve engines have different mounts . The 16-valve engine does not have a rear engine mount, but does have two side mounts, which the eight-valve engine does not have. The replacement procedure on one and the other engine is almost identical, and differs only in minor nuances.

Symptoms of wear

Although it seems that it is quite difficult to determine the wear of engine mounts without the intervention of a qualified specialist, in fact, you can find out everything yourself.

The failure of the engine mount can be immediately determined by increased vibration.

In this case, the engine will operate normally, but vibration will be felt on all elements of the body, including interior elements.

The strongest vibration occurs when the engine starts and immediately after it is turned off. Sometimes you can even hear a characteristic knock , which appears due to the contact of the engine with the supports. In this list you can see the main causes of problems associated with engine mounts:

1. Most often, pillows become deformed. Deformation occurs due to the exhaustion of the pillow's life.
2. Rubber loses elasticity. This most often occurs due to the old age of the pillow.
3. Rubber cracks, falls apart and delaminates. Often the pillow can fail as a result of high temperatures or exposure to aggressive liquids.

   An old support, worn out by years of use.

   And here is a half-circle crack.

In any of these cases, the pillow will no longer be able to perform its immediate functions efficiently.

Functionality check

Before changing pillows, you should check the functionality of the old ones. It may happen that the cause of vibration and knocking is not in them.

You can learn about the influence of the crankshaft sensor on engine operation in this material:

So:

1. We put the VAZ 2110 on supports;
2. We install a jack with a backing made of board or timber under the oil pan and jack up the engine until the cushions are freed from its weight;
3. We check all the pillows, namely: • Are there any cracks on them; • How easy it is to separate them from the substrate (it is made of metal); • Are they still hard? • If no obvious deficiencies are found, and replacement is not yet necessary, check the play between the frame and the plates; • Lubricate the cushions with a protective compound, lower the motor, tighten the fasteners and nuts.

Diagnostics of pillow wear

Wear of the pillows manifests itself primarily in the form of increased vibration of the power unit.

If the engine runs smoothly, but the vibration has noticeably increased, you can confidently diagnose wear on the engine fasteners.

As a rule, the peak of vibration is felt when the engine is turned on and off - the car rattles, and the steering wheel seems to be trying to escape from the driver’s hands. In the case when the wear of the pillows has reached critical levels, along with vibration, a characteristic metallic grinding sound appears, arising from the contact of structural elements of the body and the engine.

In order to make sure that the increased vibration is caused by wear of the cushions, you should inspect the mounting supports and cushions while the engine is running. You can determine the strength of vibration by placing your palm on the motor.

After diagnosing the malfunction, it is necessary to replace worn out cushions as soon as possible, since in addition to affecting comfort, increased vibration can lead to serious damage and deformation of body and engine elements.

See our material for all about the pros and cons of liquid sound insulation.

What is a car VIN code and why is it needed - see here.

Note that in cases where the steel elements of the supports are not worn out, you can limit yourself to replacing the rubber part of the structure.

8 valve engine

If you need a replacement on an 8-valve valve, then proceed as follows:

1. Right pillow. It is necessary to unscrew: • The upper nut; • Bolts for fastening to the bracket; • Bolts under the wheel arch securing the bracket to the side member. We remove the bracket and install a new pillow, reassembling it in the reverse order.
2. Left. After unscrewing the top nut, lower the motor onto the prepared support and pull out the top washer from the support. We unscrew the fastening bolts, remove the washer, after which you can replace it;
3. Rear (8-valve only). Unscrew the nuts that secure the airbag to the body, then the bolts securing it to the gearbox. The new part may come with a bracket. But if it is not there, install it with the removed one and assemble all the parts in place.

Replacement

The replacement procedure should not cause much difficulty for those who have independently repaired their car more than once, especially the suspension and chassis.

If you have no experience, then we recommend contacting a service station. Only proven and reliable.

Dismantling works

Replacement has its own nuances depending on the pillows for each engine in question. We will separately talk about the repair of 8 and 16 valve engines.

8 valve engines

1. Select a flat surface for repairs, place chocks under the rear wheels, and turn on the handles.
2. Remove the engine protection.
3. Unscrew the bolts of the generator belt tensioner, after which this belt must be removed. You will need a 13mm wrench.
4. Place a jack under the car, place a strong wooden board on top and lift the engine until it releases the load from the supports.
5. Using a 15 wrench, unscrew the central fastening nut of the worn pillow.
6. Now use a 13mm wrench to unscrew the airbag fixing bolts mounted on the bracket.
7. From below, near the right arch, 3 more bolts are unscrewed. They are responsible for connecting the bracket to the spar. You need a 17mm wrench.
8. The bracket is removed, the pillow is removed and replaced with a new one.
9. Next, perform assembly in reverse order.
10. Place the jack under the transmission and then lift it up.
11. Using a 15 wrench, unscrew the nut of the central fastening of the left pillow.
12. Using a 13mm wrench, unscrew a pair of bolts securing the support, after which it is removed.
13. Replace the damaged element, and then carry out the reassembly procedure.
14. Remove a pair of nuts with a 17mm wrench. They secure the cushion to the body. Then a couple more nuts connecting the cushion to the gearbox are unscrewed.
15. Remove the rear support.
16. Using a 17mm wrench, remove the fastening nut connecting the bracket to the cushion. A new rubber part is installed in place of the old element.
17. The rear support is returned to its original state by reassembly.

16 valve engine

If you have a 16 valve engine under the hood, then there are some nuances for replacement.

On 8 and 16 valve engines, dismantling and replacing the side cushions is carried out in a similar manner, there is no difference. But the front lower ones change differently.

To change the front lower mount on a 16 valve engine, you need:

• Unscrew the front lower support rod fixing bolts in relation to the front suspension cross member. For these purposes, arm yourself with a 15 key;
• Unscrew the fastening nut that holds the support to the engine bracket. You will need a pair of keys at once and both are 15. The bolt is removed;
• Remove the support, change the cushion on it or replace the entire assembly;
• Reassemble;
• In the engine compartment, unscrew the fastening bolt of the upper front support to the car body, while holding its nut by hand. This is where the key for 17 comes in handy;
• Remove the bolt and nut;
• Remove the fastening bolt of the front upper support in relation to the power unit bracket using 15mm wrenches. The bolt and nut are removed;
• The support can now be removed, the pillow or the entire assembly can be replaced;
• Assembly is performed in reverse order.

Assembly of the unit

Additional support

To make movements in the longitudinal direction smaller, you can install an additional support. It is also called a suspension bar. Mostly they can be found in online stores.

Additional support

To mount an additional support on the 8-valve power unit installed under the hood of your VAZ 2110, you will need to purchase a special bracket used to transfer the ignition module.

Reviews from those who have performed such operations claim that when starting off the car does not jerk, the engine does not become loose, which has a positive effect on the wear of the cushions.

An important useful property of modification by installing an additional support is to prevent the lower pipe from falling off the radiator, which seriously affects dozens of people.

There are a lot of opinions regarding reducing vibrations. Some consider this a useless exercise, while others, on the contrary, note significant improvements in the behavior of the car.

Manufacturers and prices

Now you know how to change engine mounts, and you need to talk about the cost of the products. The most popular producers in Russia are Balakovo and Tolyatti. Which manufacturer of the part to choose is up to you to decide. They differ little in quality; the choice depends only on individual preferences. Their prices are approximately the same:

1. Engine side mount (popularly called “guitar” for its resemblance) - cost 480-600 rubles, depending on the seller.
2. Rear airbag attached to the gearbox (without bracket) – 350 rubles.
3. For 16-valve engines, supports cost about 450-500 rubles.

Alternative supports

Considering the long-standing problem of Samara and a dozen, the manufacturer immediately released a whole series of alternative pillows:

• OJSC-BRT;
• SS-20;
• "Assomi".

Let's now consider their features:

• The support of JSC-BRT and the peculiarity of its structure is contained in a hinged product, which replaced the bearing in this place. At first glance, it looks like a panacea, since the general principle of operation seems to be clear: the creators of this technical innovation used an element that has increased rigidity in the radial direction. At first glance, the sounds should disappear and the car should become silent on uneven roads, however, conflicting reviews from the motorists themselves do not allow us to completely agree with this fact.
• An alternative to OAO-BRT is SS-20, where a steel bushing was installed in place of the standard bearing, which was completely welded into a rubber damper. The manufacturer of this new product claims that the SS-20 will completely eliminate the appearance of elevators and extraneous sounds. Moreover, the manufacturer directly promises that the SS-20 will be able to guarantee the classic behavior of the rocker (see Replacing the rocker on a VAZ 2110 on your own): regardless of the topography of the road surface, the lever will be stable and without extraneous sounds.
• The developers of "Assomi" boldly claim that the use of a special prescription rubber mixture will completely smooth out all impacts and sound noise, thereby significantly increasing the overall level of comfort of the car.

So, you need to choose who to trust, because there are a huge number of manufacturers to choose from, who all guarantee the high quality of their products. And most importantly, they guarantee that they managed to create a universal high-tech product that is most effective from a practical point of view.

Note. But it’s not entirely clear why some manufacturers of backstage cushions use rubber ears that quickly break?

Practical Feature of Alternative Choice

Unfortunately, “Assomi” and SS-20 are quite difficult to find in local stores; in the future they will go on wide sale, however, it is impossible to answer exactly when this will happen. It all depends on the store owners. The motorist is mainly offered imported products, as well as from national manufacturers, but only standard ones. It should be objectively understood that the quality of imported products varies significantly in comparison with national standard factory models, as does the price. Therefore, if you are pressed for time, it is best to order your own national alternative via the Internet, which is much lower in price than its foreign counterpart, and the quality is almost identical.

When to change your pillow

Factors that indicate the need to replace the wing cushions:

• extraneous sound during movement, the irradiation of which can even spread to the body of the vases;
• traces of hardening or cracking of the rubber cushion are visible, as well as if it is separated from its metal base;
• there is a pronounced increasing vibration that has not previously been observed;
• in case of unsatisfactory backlash length, etc.

Let's sum it up

Taking into account the above information, it becomes clear that replacing the engine mounts/mounts of the VAZ 2110 and a number of other models is not a complicated procedure. However, before carrying out work, you need to accurately determine the need for replacement itself, as well as which pillows need to be changed.

We also recommend reading the article on how to replace the VAZ 2110 clutch with your own hands. From this article you will learn about the signs that a clutch needs to be replaced, as well as how to change the clutch on a 2110 yourself in a regular garage.

Finally, we note that operating a car with faulty engine mounts affects not only comfort, but also the service life of the car’s components, as well as the body. For this reason, if the engine vibrates strongly, this is a reason to check the supports and completely/partially replace the power unit support pads.

Do-it-yourself repairs and preparatory work

Replacing the VAZ 2110 gearbox cushion

The knocking starts when the gear is switched from 1 to 2 or from 3 to 4. The knocking also occurs when driving on country roads at one speed. One thought immediately arises: the checkpoint is buzzing. What to do? Contact a car service center or look for the cause yourself. A car enthusiast, not a specialist, needs to know a simple truth. At service stations, minor repairs are taken on reluctantly or even refused due to workload. They may, of course, offer to repair the gearbox. Since such repairs will bring financial profit. But the result is the same. The knock under the bottom will remain. Therefore, there is no need to despair. You need to visit a car store and buy the necessary spare parts:

• 2 assembled pillows (choose from the Volzhsky Rubber Plant or Balakovo);
• 2 bolts M12x75; 4 washers dia. 12 mm;
• 2 nuts - 12 mm with nylon insert;
• 2 bolts M10x25; 6 wide washers - 10 mm;
• 2 engraving washers - 10 mm;
• 1 VAZ-2108 timing case bushing.

What is needed for repairs

First, you need to determine which support on the VAZ 2110 engine should be changed (if you do not want to change all the damper mounts at once). To do this, you need to do an independent inspection of these parts. Sometimes, the power plant seems to be tilted horizontally on one side or tilted along the central axis of the car. This is the first sign to replace the damper mounts.

Mechanic's kit Rolling jack Pair of short boards angle grinder (grinder)

Two cushions (side) secure the engine to the left and right side members in the engine compartment. And one (rear) fixes the motor to the bottom. Therefore, it is necessary to lift the machine on a lift or install it on a viewing hole. The wear is immediately visible. The rubber has tears and core failure. Depending on the result of visual diagnostics, you should purchase the required number of parts for installation.

You will need a tool. In most cases, a standard locksmith set consisting of open-end and box-end wrenches with heads will be sufficient. In addition, to replace engine mounts on a VAZ 2110 you will need a rolling jack and a pair of short boards. It is advisable to have electricity and a cutting machine with a disc, since you may have to cut off the mounting bolts.

Helpful information! A couple of hours before repairs, it is strongly recommended to apply universal lubricant “Liquid Key” to the threaded connections. Damper supports are changed very rarely, therefore, unscrewing them without prior preparation is quite difficult.

Replacing airbags on 16-valve engines

The mounting arrangement on such engines is slightly different - there is no rear support. First change the front lower cushion, then the upper one. To prevent the motor from moving longitudinally, additional supports (rods) are installed. You can install such supports on all cars of the tenth family. Very often the lower pipe breaks off the radiator of a VAZ-2110 or similar model. Installing such a rod completely solves the problem. But the level of vibrations is also significantly reduced (although not all motorists think so), and the wear of the remaining pillows occurs much more slowly. Therefore, installing such rods will have a beneficial effect on the condition of the car as a whole. And the pillows will have to be replaced much less frequently.

What can happen if faulty supports are not replaced?

What happens if you do not pay attention to possible malfunctions of the engine mounts? At first, when vibration and knocking are unnoticeable, nothing critical will happen. But with the destruction of the engine mounts, the power unit will begin to transmit vibrations to chassis parts and they will begin to fail much faster; this could have happened under the same operating conditions. Also, the engine can hit elements of the engine compartment and lead to damage to various pipes, hoses, wires and other parts. And the condition of the engine itself may suffer due to constant impacts that are not dampened by anything.

How to extend the life of engine mounts

Engine mounts work hardest when the engine vibrates the most. This is primarily starting from a stop, accelerating and braking. Accordingly, a driving mode with a soft start and less sudden acceleration and stopping prolongs the life of the engine mounts.

Of course, these parts last longer on good roads, but this factor is very difficult for us to influence. As well as for launches in sub-zero temperatures, when the rubber hardens and tolerates vibrations less well. But in general, we can say that a careful and quiet ride can extend the life of many parts, including engine mounts.

Source

Design and purpose of tens engine mounts

Over the years, a lot of practical experience has been accumulated on the topic of how to change engine mounts on a VAZ 2110, and videos of repair processes can also be found in abundance. But not enough people pay attention to the details of the details. And, it must be said, in vain, since such knowledge will help you accurately find the source of vibrations and purchase the appropriate spare part for repairs.

The main purpose of the engine support is to reduce the level of vibration transmitted from the power unit to the car body. The rubber-metal structure consists of an iron base with a thick rubber cushion. The device has proven itself well, as it is quite durable and the money costs mere trifles.

Eight-valve Lada 2110 engines are attached to the body at 3 points: right, left and rear. The side supports connect the body to the engine block through through holes. The rear support is attached with 2 bolts to the gearbox, and 2 nuts to the body. The significance of this damper part is very significant - it prevents longitudinal vibrations of the internal combustion engine during braking and acceleration.