Any motor vibrates in the process of work. This is explained by the design of the engine, which, depending on the number of cylinders, is able to be balanced to one extent, but it is virtually impossible to achieve full balance. Vibration and noise are transferred to the body either in the vehicle salon, causing a sensation of discomfort from the driver. To combat this phenomenon, a motor suspension system was developed. Its key elements are supports, often called "engine pillows". The support is a buffer installed in the fastening points between the motor and the subframe, the frame or body of the vehicle. They are able to absorb the vibration of the engine and hold it in a relatively static position. The motor is thus protected from sharp blows and jolts.

Engine Support, Support Design

The number of reference points is due to the direction of the motor of the motor inside the body and the calculation of the team of engineers of a particular manufacturer, so the pillows can be four or more.

The main criterion when choosing points is the reliability of the attachment and a slight probability of a motor displacement to the side. As a rule, a motor assembled with a gearbox in a common unit is attached in two or three places at the top and in three or four places below. In modern transport, cushions of two main types are used - hydraulic and rubberometallic.

The design of rubberometallic support is simple. The lower supports are metal plates, between which a rubber pillow is located. The upper supports are created as a short suspension lever with silent blocks, the first side of which is attached to the body bracket with a through bolt, and the second to the bracket that is attached to the cylinder block. This type of supports found the most extent as a result of cheapness in production and reliability.

Some designs of the lower support pillows, to increase elasticity and giving hardness, reinforced with springs. Some manufacturers instead of rubber are used polyurethane - as a more wear-resistant material. Pillows with polyurethane are also not rarely used on sports cars, to increase rigidity.

As a result of the appearance of fashion for tuning, some companies have settled the manufacture of polyurethane supports for the most relevant models of transport. Also, polyurethane and rubberometallic supports are classified in unimprovable and collapsible design.

Hydraulic supports are a more progressive mechanism. Such supports are able to adapt to various rotation of the motor and effectively suppress vibrations at any speed. Supports consist of cameras, between which the membrane is located. The data of the chambers are filled with a special hydraulic fluid or propylene glycol (antifreeze).

The movable membrane is capable of extinguishing oscillations at idle motor. When driving around an uneven road or at high speed, hydraulic fluid starts working. Through special channels under pressure, it makes the support with a rigid, flowing from one camera to another. Hard support is able to extinguish strong vibrations.

Hydroporas are:

1. Mechanical control. Such a design is calculated individually for each model of a car. At the stage of development of a certain model of transport, it is decided which the purpose for the support will be key - effective damping at rapid ride or comfortable noise insulation during the operation of the "Freshoye" motor.
   
2. Electronic control. Such supports react to changing the motor vibration mode in broader borders. The stiffness of the cushion changes with the help of electronics depending on the situation on the road. The hydrophopores of this type are supports of a new generation that provide optimal comfort when working in various modes.
3. 

Engine fastening wear, which leads to a late replacement of supports

The main purpose of the DVS support is to provide an elastic reliable engine mount to the body. From this depends on the level of body vibration and, accordingly, noise insulation of the entire car. On severe wear indicates excessive strangers and noise when moving through poor road surface. You should not bring so important elements of the car to such a state, as it can lead to the following:

1. As a result of an inefficient engine mount, an air filter will be fought about the hood.
2. The cooling fan will contact the radiator grille, which can be able to drive its blades and weaken the mount.

As a rule, the power units of cars are equipped with three pillows, but there are also such models for which five such elements are assembled. Professionals are advised to replace all the supports at once, and not separately.

Engine Support Signs

When operating transport, the engine support breaks for a variety of reasons. The most frequent defect is a breakdown of the pillow. And at least these parts serve sufficiently long, as a result of high load, the rubber does not endure and breaks. The largest loads occur when driving transport from place and during braking. If the auto owner prefers a high-speed movement with a sharp start, then he will not serve the motor cushions for a long time.

Rubber on the pillow is able to lose its elasticity and dismiss. Sometimes an aluminum bracket is rocked at the obstacle. If the oil from the gearbox is either from the motor hits the rubber block of support, the rubber is exhausted with oil, and the support fails earlier than necessary. Also adversely affects the brake fluid and toosol. In any situation, the operation of the car with a faulty motor cushion will be uncomfortable, and, sometimes, and unsafe.

The following features indicate the pillow fault:

1. When driving around the uneven road, there is a return on the gear lever.
2. The appearance of vibration.
3. The movement along the uneven road surface is accompanied by blows in the front body.
4. During braking and starting from the scenes there are knocks and clicks ahead of the car.

Tools assistants, consumables

To replace the motor pillows, you will need the following materials and tools:

1. Scrap.
2. New pillows.
   
3. Small cellophane packages.
4. Thread glue.
5. Marker.
6. Wrench kit.
   
7. Several repair stands.
8. Two jacks.

How to check engine pillows

To check the motor supports, you need to put a car on a flat surface, lift it with a jack, install a log or other support under the engine and remove the jack. Then you should climb under the vehicle and inspect the pillows, as well as the space around them.

Engine cushion, to pay attention to when inspection

In case of inspection, pay attention to the presence of impulses and cracks, solidification of rubber and bundle of support - the disconnection of its rubber part from the metal. All this will indicate the need to replace the pillow.

Safety at work

To ensure safety, before starting work, disconnect the terminals of the battery and put the vehicle to special repair stands.

Engine Pillows, Replacing the right cushion Step-by-step instructions

The replacement of the right pillow must be produced in such a way that the motor is located in a raised form on the right. This condition is easily done with the help of a jack. Then it is necessary to unscrew the nut that fastens the detail, after which they are two bolts that fix on the bracket with a support, and three more bolts that are fixing on the right side member bracket. Now remove the bracket, unscrew the nut and put a new product instead of the old one.

Engine Pillows, Replacement Left Pillows, Step-by-step instructions

In this case, the jack must be placed under the gear or left. Then we do the following:

1. Disconnect the engine left airbag. When it is lowered to stop the gearbox should be supported.
2. We remove the top limiter given details.
   
3. Remove two bolts that fasten the product to the body.
4. Remove the old element and mount a new one.

Engine cushion, replacement rear pillow, step by step

When replacing the rear support you need:

1. Remove the two nuts that fasten the back support to the body.
2. Unscrew two bolts that fasten the device to the gearbox.
   
3. To disconnect the rear cushion bracket, you must hold it into vice, then unscrew the bolt.
4. We change the pillow to the new one.

Engine pillows, replacement front cushion, step by step

The replacement of the front support is actually not different from replacing the back. In this case, it is necessary to dismantle the mudguard of the power unit, then unscrew the bolt, which is attached to the crossbar of the front suspension of the front support bar. Then disconnect from the bracket to the bar, remove the worn item, we mount the new and reverse assembly.

Tips of professionals

Specialists are recommended when replacing pillows apply a thin layer of glue to the bolt thread, which will ensure more reliable fixation of this device.