Insulating a car engine with felt

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Tags:Soundproofing

If you operate your car in the cold season, be sure to get insulation. This way, when warming up the engine, you will save money and your time. Hood insulation is used for the following reasons:

• excessive fuel consumption during heating, caused by engine freezing;
• the formation of a layer of ice on the body, which contributes to the destruction of paintwork and scratches the glass.

If you don't use hood insulation, you run the risk of constantly polishing the body due to scratches and fading of the paint. You will have to devote more time and money to traveling by personal car. Thermal insulation of the hood is done using improvised means or by purchasing a car blanket.

Many people don't notice how hard it is to start a cold engine.

See also:

Why insulate the hood and how to do it correctly

Thermal insulation under the hood

If you operate your car in the cold season, be sure to get insulation. This way, when warming up the engine, you will save money and your time. Hood insulation is used for the following reasons:

If you don't use hood insulation, you run the risk of constantly polishing the body due to scratches and fading of the paint. You will have to devote more time and money to traveling by personal car. Thermal insulation of the hood is done using improvised means or by purchasing a car blanket.

Many people don't notice how hard it is to start a cold engine.

Materials

Before you start insulating the hood, obtain the following materials and tools:

You can save on insulation under the hood by purchasing the following material:

Insulating the hood requires the presence of a 2 cm layer of heat-saving material. You will need no more than two layers of Isolon. After choosing a consumable base to save heat, secure it with clips.

The main way to keep your car warm is with a car blanket. It has come to replace felt coverings and even clothing, which our fathers and grandfathers used to cover the vehicle.

This product can withstand heating to high temperatures (more than 100 degrees). Compared to other materials, a car blanket has the following advantages:

Why additionally insulate the engine?

Let's start with the fact that insulation is the installation of additional thermal insulation. Sometimes owners note a partial improvement in sound insulation as a pleasant addition. An insulated car engine (especially a diesel engine) cools down more slowly and reaches operating temperature faster. This saves time before warm air appears from the stove, which is necessary for effectively warming up the interior, removing snow and ice from the windows, etc. In other words, comfort increases when operating a car in winter.

Now about the engine itself. As we have already said, in the cold, working fluids in various systems and components of the car (lubrication system, power supply, cooling, gearbox, etc.) change their properties compared to being in positive temperatures. Engine starting is greatly influenced by the condition of the engine oil and fuel.

In other words, in cold weather the oil thickens in the engine crankcase. For this reason, the lubricant requires more time for the oil pump to fully pump lubricant through the system to the loaded parts during a cold start. At such a moment, short-term oil starvation occurs. This should be especially taken into account by those who are accustomed to driving off immediately, that is, not warming up the car before the trip.

We also recommend reading the article about whether or not you need to warm up your car in winter. From this article you will learn about the main nuances that are associated with warming up a car, and you will also find answers to the question why it is still advisable to warm up any engine.

The faster the engine warms up, the less time the lubricant will need to restore its optimal viscosity and protective properties. It turns out that accelerated heating due to insulation can reduce the wear of rubbing pairs of the cylinder-piston group and other components. The fact is that engine parts suffer from a lack of lubrication and operation under load in conditions of insufficient thermal expansion (thermal gaps), which is observed before the engine reaches operating temperatures. It should also be noted that the volatility of gasoline deteriorates at low temperatures, which further complicates the cold start of the internal combustion engine. The quality of the mixture of fuel and air in such conditions decreases. We should not forget about the battery, which naturally tends to lose charge faster in cold weather.

Now let's imagine a common situation when a car is operated in a city in winter. A cold start, short warm-up, or immediate driving simply does not allow the engine to reach operating temperature in a short trip. The driver then leaves the car for 30 or 60 minutes, after which the short trip is repeated again. It is a mistake to assume that the engine has already been warmed up. In fact, all the components and assemblies under the hood have cooled down, that is, the cold start is repeated again. It is quite obvious that such winter operation will not add life to the engine and battery. Fuel consumption increases from driving on a constantly cold internal combustion engine, the unit wears out faster, and the temperature in the cabin does not have time to rise to an acceptable level.

We also recommend reading the article on how to properly charge a car battery with a charger. From this article you will learn about the features of charging a battery in various ways and get useful tips on operating the battery.

To solve these problems, there are many options, ranging from programmable automatic engine start using a timer using a conventional car alarm to the installation of expensive pre-heaters such as Webasto. The use of “synthetics” as winter engine oil also makes starting easier. The use of additives in oil and fuel is widely in demand among diesel engines and ensures the preservation of the properties of working fluids at low temperatures. In parallel with this, insulation of the engine and engine compartment of the car plays an important role. This solution is easy to implement and does not require significant financial costs.

Noise insulation

Often, in parallel with the insulation under the hood, car enthusiasts install sound insulation in the car. If you use felt as insulation under the hood, it is convenient to lay soundproofing materials under it. However, do not throw away factory materials to prevent noise - they also help as thermal insulation.

There are several popular products for do-it-yourself soundproofing of car doors, which are used in conjunction with a felt heat insulator:

Source

Sound insulation of the hood of VAZ 2110

The result of soundproofing the hood of a VAZ 2110:

1. less engine noise through the windshield
2. the noise, supposedly repeatedly reflected in a closed volume, tumbles around in a circle under the hood and cannot calm down in any way, and in order to break this circle, it is necessary to make some noise on the plane
3. In winter, there is less fuel due to the slower cooling of the engine (if a heat insulator is used), so warming up is not needed

1. Soundproof the floor
2. Soundproof the roof
3. Soundproof the doors
4. Soundproof the hood
5. Soundproof the trunk
6. Soundproof the engine shield
7. Soundproof arches
8. Make soundproofing lockers
9. Soundproof thresholds
10. Eliminate panel squeaks
11. Eliminate squeaks in door trim
12. Eliminate from the gearbox side
13. Install additional door seals, or modify or replace standard seals.

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Lada 2112 drive sound › Logbook › Insulating the engine compartment v.2

Hi all! Today we’ll talk about one thought that I think one way or another has visited the heads of all pelvic guides. Namely, about insulating the engine in winter. It's no secret that in winter a car takes much longer to warm up, especially if it spends the night outside and cools down very quickly. Because of this, if the operation of the car consists of fairly short trips and long stops, you have to constantly drive in a cold interior. As you already understand, I use the basin in precisely these modes, and although the 12 warms up noticeably faster and better than the previous nine, I still always want to add to my comfort. The first step, like many others, was a piece of cardboard to cover the radiator for the winter. The idea is simple, convenient and very effective. Cardboard reduces airflow to both the radiator and the engine, and this, in turn, allows the engine to reach operating temperature much faster and keep it more stable in cold weather. But the issue of engine cooling remained open. Taxi drivers suggested the idea then. During the cold weather, they bought penofol en masse from building materials stores. We cut out pieces of the required size under the hood and drove with them all winter. In general, due to the cost of the experiment, I went to the store and bought a thick piece of penofol.

The results of the experiment are presented in this blog post. A SIMPLE WAY TO INSULATE THE HOOD

For those who are too lazy to watch, I’ll explain that there is a “test” of car engine insulation and the “presenters” include penofol in the list of fire hazardous insulation materials by dousing it with gasoline and setting it on fire... ahem... In general, I have never been a fan of this and similar programs. Personally, they irritate me with the absolute stupidity of the presentation of information, the mediocrity of the directors and presenters, and generally the lack of usefulness of the program as such. They kill even some useful and interesting facts and experiments either by mediocre presentation, flavored with a mountain of cheap special effects and television-type “drive” techniques, or by outright advertising. Although, in general, such programs are intended for a slightly different weekend audience of state television channels and not for you and me. In short, this is all my subjective opinion. Let's get back to the topic. Naturally, I saw this video at the stage of studying the idea. But these arguments seemed simply ridiculous to me. I am sure that if a person has an open fire under the hood or a temperature of about 150 degrees, then the last thing he will care about is whether penofol burns or not. And I’m not even saying that an engine filled with oil and covered in dust is much more dangerous than insulation, and besides that, there’s something to burn under the hood. And if you are worried about a fire hazard, then first you need to put the wiring in order, protect it, clean the engine, check the collector protective shield, etc. and only then rush to the store for a fireproof blanket. After the video, naturally, I conducted experiments. I tried to set penofol on fire, poked it with a soldering iron, etc. Based on the results, I decided for myself that I saw absolutely no dangers on his part. The only thing worth paying attention to is the conductivity of the shiny side of the penofol. There are samples that conduct electric current well. Accordingly, there is a risk of short circuiting the battery and this is indeed a real danger. It can be treated by simply turning the insulation over with the foil facing up. Since the foil itself is shiny on both sides, the effect of the thermos is preserved. Well, the second thing worth paying attention to is: you need to make sure that the insulation is located far enough from the collector. The collector itself will not ignite the penofol, but will melt it, but drops falling on it can already catch fire (although the drop on the soldering iron never caught fire. :) Otherwise, the idea works great. The results of this experiment are described in that topic.

In the same thread, I fulfilled the promise I made in the previous discussion. I bought a premium car blanket and covered the engine. There were several reasons for buying a blanket:

How to insulate a car hood with your own hands

As usual, in the fall, car enthusiasts rejoice at the last warmth, since winter will soon come, which will bring frosts, and, consequently, problems for cars. During winter, very low temperatures at night are common. The car travels a large number of kilometers in winter, after which it is parked. While the owner was doing his business, the engine had time to cool down, and when the driver arrived, the car needed to be warmed up again. This operation will have to be carried out constantly until the car owner resorts to purchasing and installing insulation under the hood. Thanks to this improvement, the motor will cool down longer, which means it can be used even after several hours of inactivity.

Content:

How to properly save fuel during the winter

Insulating a radiator using a piece of cardboard is an old method that is a myth. This method has been popular since the times of the Soviet Union. It remains relevant to this day. However, many people do not even realize that this approach is not useful, since it can cause you unnecessary problems. After installing the cardboard, the engine may overheat, boil and completely fail. Cardboard will not help you in this situation.

Before you insulate your car for the winter with your own hands, use a few tips for saving fuel in the winter:

Why did they even come up with insulating the engine compartment?

Frost causes the lubricant to thicken and stop penetrating into hard-to-reach corners of the engine. Lack of lubrication negatively affects the stable operation of the engine. The piston group and cylinders will first feel that there is not enough lubrication. The so-called oil starvation causes the pistons to move “dry”. You can’t save on insulation so that you don’t have to bite yourself later.

In addition, you can insulate the hood of your Lada for only 1000 rubles. It will be much cheaper to buy and install insulation on the hood than to carry out a major overhaul of the internal combustion engine. It should also be noted that when fuel freezes, just like lubricant, it changes its physical properties. Frozen fuel practically does not evaporate, which worsens the rich mixture. In winter, the battery suffers no less. The charge is already more difficult to release. Even poured special oil, which, as a rule, should help with starting, will do nothing in severe frosts.

Why do you need insulation?

The winter period is not the most pleasant time for car owners, and for the car itself. Starting the engine in winter, while it is not warmed up and lubricant does not circulate well through the system, when parts are forced to work with a minimum of lubricant, is equivalent to driving a hundred kilometers by car.

At the same time, gasoline consumption during warming up reaches half a liter. This means that with each warm-up, a major overhaul of the engine is approaching by leaps and bounds and many times more gasoline is wasted.

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To reduce fuel costs during the cold season and reduce the load on the engine, it is recommended to use insulation during the winter season.

What to choose for hood insulation?

Car owners insulate the engine compartment with any available items. The most commonly used are professional blankets and felt. Felt itself is a good insulator, but the problem is that a piece of sufficient size is difficult to find, and it is difficult to sew. This kind of insulation helps, but is not enough. You can purchase professional capes designed for this purpose.

Separate kits are produced for each brand. The main advantage of choosing branded insulation is the ease of fastening and dismantling. The production of such products is established only in small batches in private firms. Therefore, purchasing such professional insulation is not easy. Manufacturers present two types of insulation on the market: for the hood and for the entire car. Few people use the second option, since it is expensive and difficult. Most drivers simply insulate the engine compartment with something made with their own hands.

What to use for insulation

There is one important nuance here. There are 2 ways to insulate the engine compartment. Namely:

And here various materials are used. Speaking about the best way to insulate a car for the coming winter and what to put under the hood, it’s worth looking at 2 situations separately.

Read more: A guide to diagnosing the correct firmware and flashing the VAZ ECU with your own hands

The motor is covered mainly in 2 ways:

When choosing a material for covering an internal combustion engine, give preference only to non-flammable and dielectric materials.

To some extent, the car blanket is actually better. It is more efficient and designed for specific tasks. The popularity of felt is associated with its low cost.

There will be no problems installing a blanket or felt. You should choose a blanket that fits the size of your engine compartment (there are model car blankets for specific cars), or cut out the desired blank from felt. Then the material is simply laid down. There is no need to glue or fix anything.

At the same time, high-quality thermal insulation for a car hood is also important. To insulate the hood, you can use the following materials:

Each of the presented materials is perfect for covering the back side of the hood and achieving the necessary thermal insulation effect. Therefore, choose for yourself what you like best or is suitable for the price. Among them, isolon is considered the most budget-friendly solution.

The meaning of insulating the hood is quite simple and understandable. You need to clean the surface, cut out the blanks to the shape of the hood, and then carefully glue the material.

The work is not difficult, but requires accuracy. As a result, you can insulate the hood in literally 1 hour.

Who produces insulation?

There are few manufacturers of hood insulation. “Standard-Plast”, “Standard” and “Hermes” have proven themselves well in the market. Customer reviews are only positive. "Standard" produces insulation materials "Isoflex" and "Tiviplen". "TiviplenP" is made of polyethylene foam and equipped with a self-adhesive surface. In addition, this insulation contains a PVC layer, but it does not contain foil. Her absence does not prevent him from fulfilling his task. The thickness of the products varies from four to fifteen millimeters. Isoflex is not well suited for engine insulation, as it has more sound-proofing properties than heat-insulating ones. The products of these companies are universal and can be used not only for protection from the cold, but also to get rid of noise.

What is a car blanket?

You can buy hood insulation at an auto parts store without any problems. Wide selection of models. But, if a person has the necessary materials and is not afraid to take on unfamiliar work, then he can make such an accessory himself. This blanket is based on special cotton wool. Sometimes there is even glass wool. Such material can be taken from a fireproof shield. In industry, glass wool is used to insulate gas and oil pipelines.

The positive properties are that this material conducts heat poorly and does not burn. Fiberglass fabric withstands high temperatures and is also neutral with respect to various chemical liquids. Thanks to this material, you will need to spend not 15, but 3 minutes to warm up the car. In addition, if you leave the car after a trip, you can start it without problems, and the temperature sensor will be at operating level. The cost of such blankets is very high, but the result is a very big plus in efficiency.

How to properly insulate a hood?

To protect the engine, you can use a car blanket. But what to do if you need to insulate the hood? Experts recommend installing polypropylene foam, which is stitched with foil. This material sits on the shelves of construction supermarkets. It is perfect because it does not allow heat to pass through and perfectly protects the engine from incoming cold.

This material is not afraid of high temperatures, so it is perfect for insulating the hood of a car. The thickness varies. It is best to choose a product with a thickness of no more than 2 cm. You can make insulation yourself from purchased material. To do this, it is necessary to give a piece of material a shape that maximally follows the silhouette of the car hood. The resulting insulation must be attached using special clips. The remaining material is used to insulate the stiffeners on the hood.

What can you say about the standard insulation?

It is worth noting that the factory insulation is not designed for Russian winters. With the arrival of really severe cold weather, this material becomes practically useless. It has proven itself well in countries with warm climates, where winters with a maximum comfortable temperature are -10 degrees. Therefore, you should choose additional insulation before winter. Some factories specially produce cars that are already prepared in advance for cold countries. Such cars are already equipped with serious insulation that can withstand severe frosts. Other versions do not have this innovation. In order to somehow help themselves, car owners independently equip their “iron horses”.

It is important to know

Before gluing the insulation, you need to clean and degrease the surface. This will ensure that the material does not come off while moving. Now the engine will not be afraid of even the most severe frosts. The car can be operated without fear that the engine will simply need to be warmed up. It is important to note that thanks to this improvement, ice will no longer accumulate on the hood. Plus, all the material is available anywhere. Insulation with foil applied to it is perfect for solving this problem. By the way, this material is very cheap, and its properties are in no way inferior to professional blankets.

Sound insulation with felt

Why do experienced builders use felt materials to soundproof buildings for various purposes? It's quite cheap. In addition, all felt elements can be laid in different parts of the building.

The modern pace of life determines the development of technologies that constantly create a lot of noise. Extraneous sounds interfere with work and rest. An individual approach should be taken to soundproofing the ceiling, floor and walls. Today, the range of soundproofing felt, specially created for soundproofing buildings, is quite large. Such material not only prevents the penetration of external noise into the room, but also eliminates the appearance of echo.

The range of sound insulation with felt is very wide - the material is used for sound insulation:

• apartments;
• bars;
• cinemas;
• nightclubs;
• sports complexes;
• office premises;
• medical institutions.

Soundproofing felt is also used to create noise barriers. The material is widely used in recording studio equipment.

Soundproofing wooden surfaces is quite simple. Construction felt, along with wood-fiber boards, easily copes with the tasks of insulation from airborne noise. Before laying it, the surface is thoroughly cleaned.

Tests to determine the best insulation

Experts conducted many comparisons in which they determined the best material. The “test subjects” were penofol with applied foil, a special blanket and felt. Also, native Zhiguli insulation materials were added to the competition, but they passed out of the competition, showing not the best results. The measurements were carried out three times. In the first experiment, they measured the period of time during which the engine could warm up to operating temperature. In the second - the time during which the unit cools down. The third test was aimed at determining the degree of ignition. All experiments were carried out at a temperature of -20 degrees.

In the first test, the car was warmed up for 10 minutes. In one case, insulation was installed, and in the second, not. According to the results, it turned out that the motor with the blanket cooled down completely in 6 hours. The standard installation insulation lasted 4 hours. The foil material did not allow the engine to cool for 3.5 hours. This is a good result, since the motor without insulation cooled down in 3 hours. The felt achieved an average result; it cooled for 5 hours. What about the third competition - the best ignition rate for a car blanket. Insulation with applied foil is very cheap, but it also burns very well. If a short circuit occurs, this material will ignite within seconds. In addition, if the foil insulation is installed incorrectly and sagging appears, then the battery terminals can reach the protection and close the circuit.

We draw a conclusion

With such seemingly inexpensive and easy-to-maintain things, you can thoroughly prepare for the coming winter, which comes unnoticed. No need to wait for the first frost. You need to immediately buy the necessary materials and make patterns. Or there is an option to use standard insulation.

Thanks to this improvement, the power unit will operate more efficiently. In addition, the likelihood of breakdown, in this case, will be much reduced. Good insulation of the engine compartment will improve engine performance and also reduce fuel consumption to autumn levels. Very frequent and sharp temperature changes will not occur, which will greatly delay the process of “overhauling” the power unit. The article describes well all possible insulation for the hood, so after reading the article, everyone should learn a worthy lesson.

Insulating the hood of a car

If you use your car in winter, then you simply need to insulate the hood. This way, you can save not only time, but also money while the engine is warming up.

Reasons for insulation

First, let's define the reasons for auxiliary insulation of the hood.

Today, when there is a total shortage of everything everywhere, not every car enthusiast will want to wait for the engine to fully warm up. In addition, to preserve the presentability of the car, not everyone will carry out expensive polishing of the body.

All of the above provides a convincing basis for immediate insulation of the hood.

Material for insulation and clips

Before you start insulating the hood, you need to visit a store where you need to find all the auxiliary tools and material.

The most common material that you can use to insulate the hood is felt. Despite the fact that its appearance is far from ideal, it is inexpensive and does not wear out quickly.

And yet, even despite its low cost, it is very difficult to buy in our time.

Therefore, it is better to choose polypropylene foam, which is covered with foil. You can purchase it at any hardware store.

This material is sold almost everywhere under the Izolon brand and costs about $1.5 per sq.m. It is distinguished by the fact that it does not deform even when heated to 150.0 degrees Celsius.

It is this characteristic that makes it suitable for the task of keeping you warm.

To insulate the hood of a passenger car, it is necessary to form a layer of insulation with a thickness of about 2 centimeters. To do this, you will spend no more than two layers of Isolon.

After the material is selected, it must be strengthened in a certain place. You don't need to be a great technologist to understand that in most cars, fastening can be done using specialized clips.

They can be purchased at any auto parts store.

Hood insulation technology

1. First you need to cut out a pattern for the insulation for the hood. An unclaimed roll of wallpaper after renovation is suitable for this.

2. Then, using clips purchased at an auto parts store, we attach the wallpaper to the hood and draw out a pattern of the required dimensions, simultaneously marking the protrusions for the ribs.

3. Then, using the pattern, cut off the required piece or two from Izolon. Additionally, prepare a piece of Isolon to retain heat in the area of ​​the stiffeners.

4. Glue the cut out parts of the insulation into one whole.

5. Make holes for the clips in the resulting insulation so that they coincide with the holes in the hood. Secure the insulation to the hood with clips and cut off the excess with a knife.

Now the insulated hood of your car will give you the opportunity to travel, despite the harshest winter, and avoid prolonged and thorough warming up of the engine.

And, of course, ice will not appear on the hood. Which is, in general, what we were striving for.

Insulation of the car interior

The most common problem when insulating the interior is drafts that appear after the rubber door seals are deformed. If you replace them with whole ones, then there will be a constant positive temperature in the cabin, provided that after replacement the gaps between all parts of the car body are uniform and not too large.

Covering the body with sound-proofing and heat-insulating materials (sound and heat insulation of the interior) will make the interior even warmer. It is worth noting that before starting this rather labor-intensive procedure, you need to choose the right insulating material. Almost all of these products perfectly absorb moisture that constantly appears in the car during rain, washing or in the form of evaporation. However, there is also a drawback: after some time, this “thermal insulation” will begin to rot, causing an unpleasant odor in the car. Therefore, you should purchase a product that will not only provide warmth to the interior, but will also not absorb water.

Materials and methods of insulation

Before insulation, you need to decide on the material with which heat will be retained in the engine compartment of the car. You can use homemade thermal insulation, or use ready-made solutions. Car enthusiasts have the opportunity to purchase special insulation for the Arctic hood. The material is fixed to the hood cover from the inside. It has high heat resistance and good insulating properties. The component is used both separately and together with a soundproofing coating.

Features of felt

Felt has a lot of useful features:

• made from environmentally friendly components;
• has an increased sound insulation coefficient - the material can be widely used in construction;
• is characterized by increased adhesion - it will not slip on the surface on which it is laid;
• has high rates of creasing - it can be placed even in “problem areas”;
• does not rot;
• convenient for transportation;

Coarse-wool technical felt is used for insulation of apartments and industrial buildings. It absorbs not only sounds, but also vibration and heat. The material is made from natural ingredients. No synthetic additives are used in its production.

Felt is recommended for use in medical institutions, catering buildings, kindergartens and schools. Felt is easy to cut and cut, so you can get any shape. Felt is supplied to stores in rolls or sheets, depending on the thickness of the products.

The felt used for sound insulation has a special membrane that successfully absorbs any sound. This noise-canceling material turns out to be better than many proven sound insulators. It has a hard layer at the bottom, due to which additional sound dampening occurs.

What is the need for hood insulation?

Many car enthusiasts associate the word winter with poor starting of the car engine. Starting the engine in the cold season, and especially if the engine is diesel, is quite difficult when it is cold. Car enthusiasts with extensive driving experience use some tricks to at least partially solve this problem. Typically, experienced drivers add special additives to the fuel mixture to prevent thickening of the fuel mixture, and also use special motor oils that are resistant to low temperatures.

Cold has a negative effect on the viscosity of the oil, and then it thickens and interferes with the normal functioning of moving parts. It will take much longer for thick oil to reach the most inaccessible places in the lubrication system and the rubbing surfaces of parts.

That is, immediately after starting the engine when cold, so-called oil starvation occurs, which means that the engine operates almost dry. In this case, the friction force between the parts increases, since the thickened lubricant does not have time to reach them in time. As a result, parts wear out prematurely, and a complete engine overhaul becomes necessary. Usually the piston system suffers the most and is the first to fail.

There are many options for solving this problem, for example, insulating the garage, using additives and special oils, as well as insulating the hood. An even better option would be to apply all of the above tips in combination. To ensure that winter does not cause many problems with its arrival, you need to take care of your car in advance and insulate the car hood.

So, there are several main reasons for installing hood insulation:

Basic rules for installing hood thermal insulation

Calculation of the necessary materials in order to independently manufacture or purchase insulation under the hood in a store must be carried out based on the selected type of thermal insulation. Naturally, by installing the insulation yourself, you can save a significant amount of money. But when installing insulation yourself, you must comply with some requirements:

Basic methods of insulating a car hood

The easiest way to insulate a car hood is to purchase a special blanket for the engine. A special blanket under the hood will insulate your hood and keep the engine warm. When choosing a car blanket, you need to pay attention to its quality, since during operation the engine heats up to enormous temperatures. Therefore, to comply with fire safety rules, it is necessary to choose only a high-quality blanket under the hood. The main benefit of a car blanket is that it increases the time it takes for the engine to cool down during short stops. In comparison, without a car blanket, the engine cools down in approximately 40 minutes, and with the use of a car blanket, the cooling time increases to 4 hours.

Another equally effective way to insulate the hood is to install insulation on the hood lid. So, the algorithm for installing hood insulation:

Engine blanket.

BloodAngel

Well-Known Member

Snusmumrik

From time to time

How to insulate an engine

The issue of engine insulation arises in the cold season. Especially if the winter was harsh, like this year. This question begins to worry if the car is not equipped with an autonomous pre-heater, or is not parked in a warm garage or in a warm parking lot. Warming the engine with felt

At low temperatures, the characteristics of technical fluids and fuel change. The oil becomes more viscous and the fuel evaporates poorly. Due to the increase in oil viscosity, oil starvation occurs during the first period of operation of a cold engine. The oil pump cannot supply oil through the thin channels of the oil pipeline to the rubbing parts and they work almost “dry”. In this case, there is an increase in wear of rubbing parts. Therefore, it is worth filling in the so-called “winter oil” for the winter, i.e. oil with a low viscosity coefficient or with a more extended operating temperature range.

So that starting does not have such a strong impact on engine wear, so that the car does not freeze so much that in the morning it does not start at all, most often they try to periodically warm up the car. To do this, install alarms with auto-start based on time or engine temperature.

Along with seasonal oil changes and auto-warming, it is worth making sure that the engine cools down as long as possible, which means it is necessary to insulate the engine compartment.

From the factory, the hood of cars is equipped with standard insulation, but it does not help at abnormally low temperatures and the engine can cool down to such a state in a few hours that the car will need to be warmed up.

Felt, a car blanket or Isolon building insulation are most often used as additional insulation.

Insulating the engine with felt has a number of advantages and disadvantages. Felt has been used as insulation for a very long time, so the question is: “where to buy felt?” You can ask any car enthusiast and get an answer. Insulation with felt does not require a lot of money because... its cost is small. Also, dry, clean felt does not burn, which will protect against fire under the hood. But felt is sold by linear meters, which means it will require adjustment to the size of the engine compartment. It is also worth monitoring the cleanliness of the felt and preventing fuel and lubricants from getting in there. after this, it can flare up like gunpowder from a hot collector, so if it becomes contaminated with oil, the insulation will have to be replaced.

Engine insulation with isolon

Insulating the engine with foil insulation is a fairly simple method of insulation.
There will also be no problems with finding and purchasing this insulation. It is easy to cut so it can be easily adjusted to the desired size. Non-flammable, only the foam part can melt. If it is placed with the foil side down, this will create an additional reflective barrier to heat. The main thing is that the foil part does not come into contact with the battery terminals or other contacts; a short circuit may occur due to which the engine control unit or other electronics may burn out. Insulating the engine with a car blanket
Insulating the engine with a car blanket is a relatively new method of insulation. The car blanket consists of two layers of fiberglass, the spaces between which are filled with “glass” wool, mullite-silica (kaolin) wool or any other non-flammable insulation. Fiberglass fabric and filler do not burn under any conditions and do not conduct electricity, which means you don’t have to worry about a short circuit. Car blankets come in different sizes, the main thing is that the seller has on sale exactly the size that is needed for your car. Such a blanket is placed under the hood directly on the engine, tightly covering the entire engine compartment and preventing warm air from escaping to the hood where it quickly cools. The cost of such insulation will be significantly higher than previous methods, because no modifications or adjustments will be required.

Any insulation will have a beneficial effect on the operation and condition of your car:

the engine will not cool down quickly, which means it will need to be warmed up less often, the engine will heat up faster, which means idling less and burning fuel in vain, greater sound insulation of the engine compartment, which means greater driving comfort, the paintwork on the hood will last longer, i.e. To. there will be no sudden temperature changes from hot under the hood to cold outside, frost will not form on it and ice will not form on the hood.

Insulating the engine from above will be more effective if there is standard or additional protection or insulation below, under the engine. If it is missing, then when driving or windy air flows, all the heat will be blown out, even if everything is closed under the hood.

It’s also worth remembering to remove the insulation when it gets warmer outside. Otherwise, you may overheat the motor or melt the electrical wires.

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