How to make a flywheel with your own hands

Advantages and disadvantages of the super flywheel [edit | edit code]

The super flywheel combines durability and a reasonable price, is safe [5] in case of destruction, and its efficiency is very high. The disadvantage of super flywheels is the gyroscopic effect, which is caused by the large angular momentum of the rotating flywheel and prevents a change in the direction of the flywheel's rotation axis. To eliminate this undesirable effect when using flywheels as energy storage devices in vehicles, you can use a flywheel suspension in a gimbal suspension, but this significantly complicates the design.

An additional disadvantage of the super flywheel is the lack of a proven simple transmission that allows its use in transport. Currently, experiments are being conducted to transfer the rotational energy of a superflywheel to the wheels of a vehicle using a supervariator. The use of a magnetically suspended vacuum superflywheel as a source of electricity for stepper motors is also promising.

Another disadvantage of the super flywheel is its high fire hazard. If the super flywheel is destroyed, a frictional force will arise between the collapsing flywheel and its body. Since the superflywheel stores a huge amount of kinetic energy, during braking this energy will turn into heat. The amount of heat generated in a relatively short period of time can be so significant that it can cause the machinery or vehicle to catch fire.

Pendants in the shape of a time turner

Along with the release of books and films of the epic, many fans of this story often organized entire fan conferences, and also reconstructed the events of the books and films. It has also become fashionable to dress up as epic heroes for holidays and carnivals. So costume stores and online stores are filled with all kinds of costumes, magic wands and other attributes of the fairy-tale world. Jewelry described in books or appearing in films has become extremely popular.

Practical use[edit | edit code]

N.V. Gulia was primarily going to use a super flywheel as an energy storage device for cars and even built several samples of such vehicles.

However, recent successful advances are in other areas. Beacon Power, founded in the USA in 1997, has taken a significant step by developing a series of large stationary superflywheels for industrial power applications. Superflywheels manufactured by Beacon Power are capable of storing energy of 6 and 25 kWh depending on the model and power of 2 and 200 kW, respectively.

The American company expects to sell them to local companies, as well as provide them itself. Construction of a 20 MW superflywheel regulating power plant began at the end of 2009 [6]. Because the U.S. power grid operates with multiple local energy suppliers and an open energy market, the need to regulate power creates many problems that the company hopes to solve: storing “extra” energy when demand declines; replenishment of deficiencies during consumption peaks; regulation of current frequency.

Under the scientific leadership of N.V. Gulia, the Russian company Kinetic Power [7] created its own version of stationary kinetic energy storage devices based on a superflywheel. One such drive is capable of storing energy up to 100 kWh and providing power up to 300 kW. In the conditions of the Russian market, a cluster of several such storage devices is capable of leveling the daily heterogeneity of the electrical load of an entire region, replacing expensive and bulky pumped storage power plants.

Although cars powered by flywheels are not widely used, transportation remains one of the most attractive applications for superflywheels. In particular, we are talking about railway transport. When braking both passenger and freight trains, a huge amount of energy is wasted. A super flywheel, connected to the same electrical network as the train, is capable of capturing and storing braking energy, and later releasing it into the network to accelerate the train. The energy saved in this way will reduce consumption by 30%. [ source not specified 236 days

]

In addition, super flywheels can be used to provide uninterrupted power supply [8] to objects of the highest levels of responsibility. The properties of the super flywheel ensure the device responds at the level of hundredths of a second, allowing you to not interrupt the power supply even for a second.

Today there are many ways to increase the power of a car engine. Fans of speed and drive often decide to lighten the flywheel. Let's see what advantages can be obtained from such a replacement, what features this process has, and whether it is possible to perform the lightening process with your own hands in the garage.

How and when did the time turner appear in the world of Harry Potter?

The origin of this device is shrouded in mystery. Most likely, the time gate was created in ancient times by powerful wizards, but there is no information about this. Almost all such devices are under the careful control of the Department of Secrets of the Ministry of Magic. In the third film and book about Potter, Harry's best friend, an excellent student, Hermione, becomes the owner of a time turner the size of a pendant. She manages to get it from the dean of her department in order to be able to attend classes that are scheduled at the same time. Since the diligent girl was able to establish herself as a responsible person in the first two years of her studies, she was entrusted with such a dangerous artifact. Being extremely careful, the student managed to hide her time travel even from her closest friends until she received permission from the headmaster of the school of sorcerers himself to use the time turner to save her godfather Harry from certain death.

The next time the time turner appears is in the fifth part of the epic, when a squad of students from the school of magic infiltrates the Department of Mysteries to stop the plans of the main villain of the entire epic. In one of the rooms, the teenagers discover many huge time turners, significantly larger than Hermione's time turner. It is quite possible that these devices are capable of sending people to a more distant past; unfortunately, this topic is not further developed, since due to the battle that happened in the department, all devices are destroyed and are not mentioned further. It is worth noting that in the film adaptation of the third part This episode was not shown to viewers, so people who had not read the book were left with a lot of questions about this magical device.

About the standard element

No matter how car enthusiasts argue among themselves on the forum, the flywheel is an accurate and perfectly calibrated part. During development, engineers carefully calculated loads, torsional and scrap resistance. The weight of a standard flywheel on most cars (except for buses and trucks, as well as special equipment) is in the range of seven to nine kilograms. The exact weight depends on the specific car model and its class.

After starting the engine, a conventional flywheel begins to gain kinetic energy due to the operation of the pistons, injection and exhaust systems, as well as from the rotation of the crankshaft. When the power unit operates, part of the energy is wasted on spinning and rotating the heavy flywheel. The greater the mass of this metal disk, the more energy will be required to spin it. These costs are especially noticeable at high speeds (from 4500 rpm).

From all this it turns out that the flywheel prevents the engine from working, taking away some of the power. But not everything is so simple here. Due to its mass, the flywheel takes in unnecessary energy, which is generated due to detonation or other side processes. So, these processes do not affect the body in the form of vibrations, but are absorbed by the flywheel.

It was smooth on paper, but they forgot about the ravines?

Outside the city, the flywheel risks being left without “feeding” due to the limited number of braking (only “downhill” movement will help). In the case of driving the internal combustion engine and the flywheel drive to different axles (they say, this is all-wheel drive), there is concern about the stability of the rolling stock. The design of the flywheel drive determines, in particular, the accuracy of the values of angular velocity, moment of inertia, gear ratios, and electronic control. The requirements for the thoughtfulness of the control system are confirmed only by the possibility of the driver participating in connecting (using the dashboard key) the flywheel drive to add “power” during acceleration, acceleration (for example, up to 80 hp in 7 seconds).

Is it worth the trouble to justify the use of flywheel accumulators for, perhaps, the key indicator - fuel consumption? Judge for yourself, it was reported that in this case it decreased by 5–25% (the upper limit, of course, for certain driving modes). The general advantages of flywheel drives include the long service life promised by their manufacturers and the absence of the need for rare earth elements (although “batteries” are now increasingly used in transport for many different tasks). The weight and size characteristics of modern flywheel storage devices are becoming more and more attractive (the possibility of installing them on the roof of modern trams speaks for itself). Conversely, a decrease in carrying capacity (capacity) previously largely restrained their use. Well, we've come a long way from the flywheel accumulator placement pictured, but in the 2011 Porsche RSR, the gyroscopic energy accumulator (as it's sometimes called) sits next to the driver. The high moment of inertia raises questions about the balance of maneuvering, because the flywheel makes tens of thousands of revolutions per minute.

Let us clarify that the flywheel drive is “friendly” with both the internal combustion engine and the electric motor. Moreover, the TorqStor flywheel accumulator from Ricardo recharges when the excavator boom is lowered. Among other things, this negates the arguments for using this type of drive only when the vehicle is braking. In addition, control of the auxiliary flywheel may include electro-hydraulic valves and an electrically driven hydraulic pump. Let us add that completed in the second half of the 1980s. by employees of MADI, MAMI, MASI (MGIU), NAMI, mathematical modeling of the use of a flywheel accumulator in the LiAZ-5256 included a single-flow hydraulic transmission. The mass of the “flywheel” was 35 kg, the rotation speed was up to 12,000 rpm, which is quite enough for a bus.

Railway and urban rail transport is no exception to the experimental use of auxiliary flywheels. It is known that the SSM flywheel drive (Holland) back in 2004 ensured the passage of a multi-axle Alstom tram across one of the bridges in Rotterdam without a pantograph. Equipped with a flywheel accumulator (braking energy and during coasting, with subsequent participation in acceleration together with the internal combustion engine), lightweight Rail PPM rail buses have been available since the mid-2000s. carry passengers on the inactive Stourbridge line in the English county of the West Midlands.

It is important that in US cities (Philadelphia and a number of others) the use of stationary flywheels (also made of carbon fibers) has begun, installed at subway substations and storing the energy generated when trains are braking with its subsequent transfer to the contact rail or supply wire. A special feature of the use of the drives under consideration in this case are the numerous participants in the project.

Lightweight element

Its principle is quite simple. People's experts in tuning internal combustion engines, and some tuning studios, simply remove part of its weight. For example, up to 3.5 kilograms can be removed from a standard flywheel installed on most VAZ cars. The weight of the standard element is 7.5. And the lightweight flywheel installed on a VAZ will weigh 4 kilograms, which is quite significant. It should be noted that today there are many types of flywheels on sale. You can lighten a part from 1.5 to 3.5 kilograms. Various experts explain this in their own way, but the essence here is the same - increasing dynamic characteristics.

A fair question would be: “Why can’t the flywheel be lightened, say, up to 1 kg, or even manufactured this way in the factory?” It's simple - a part that is too light will be unstable and simply break. Various forces act on the element. And if the weight is too low, it will not withstand high loads.

This element must have a certain tensile strength, allowing it to work in standard modes.

Replacing the standard flywheel with a lightweight one

UAZ 469 Old Man Logbook installed a 90A generator

After making a fundamental decision - whether to take the car for tuning at a service station or carry out the modernization on your own, you will have to dismantle the standard flywheel, choose a lightweight version based on the characteristics, or make the part yourself. Then dismantle the assembly, replace the flywheel along with the clutch, perform dynamic balancing and adjust the gas distribution system.

Flywheel replacement access

Selection by characteristics

When purchasing a ready-made engine flywheel with reduced weight, it is necessary to take into account the location of the holes for the clutch basket, the diameter, the number of teeth and the structural material of the part.

Assortment of lightweight flywheels for a specific car model

Do-it-yourself production

At a minimum, this requires a lathe and a qualified turner. It is recommended to use the diagram, drawing and recommendations of Singurindi:

from a standard 7 kg product after cutting, a lightweight version of 4.8 kg is obtained (for the VAZ “classic”);
the workpiece is a used flywheel or a removed part from the crankshaft of a car undergoing tuning;
For reliability, the ring gear is welded to the rim on both sides, the seams are cleaned with an angle grinder abrasive disc;
static balancing is performed on the bearing.

Homemade lightweight flywheel

The finished product is installed on the crankshaft for subsequent dynamic balancing.

Dismantling

Before you lighten the flywheel on your own, you should understand that to do this you will have to dismantle several components and mechanisms:

gearbox to remove the clutch, which is changed along with the flywheel;
The internal combustion engine is partially for access to the crankshaft and crankshaft elements, since it may be necessary to install connecting rods of lighter weight and grind the elbows on the shaft.

Removal from the crankshaft

Installing a lightweight flywheel

The magnitude of the inertial force on the crankshaft of an internal combustion engine depends on the weight/angular velocity of the connecting rods and counterweights. After turning the flywheel, the angular velocity increases, so the inertial force also increases, and the counterweights remain standard.

There are two options:

reduction in the radius of rotation – loss of working volume;
reducing the mass of rotating parts - usually connecting rods.

Lightweight connecting rods

Trimming drive shaft elbows

If crankshaft elements are turned, this part is first balanced separately on a dynamic stand, then the flywheel and clutch basket are put on it.

Crankshaft balancing

Benefits of Lightening

Let's see what the lightweight flywheel installed on the VAZ-2107 can provide. After the lightening process, the part loses weight, which means the engine will have to spend less energy on the spin-up process.

In this way, mechanical losses can be reduced. Spinning the flywheel requires less energy, and accordingly, the output of the power unit will increase. A lighter flywheel has less inertia. The engine will reach high and maximum speeds faster. And in general, work at high speeds will be better.

All this is true if you carefully calculate the forces of inertia, as well as the impact of centrifugal force. After comparing with the values on a standard flywheel, it becomes clear that the lightweight part actually costs much less. But it is at high speeds that the standard flywheel experiences excessive loads from the effects of centrifugal force and inertia.

The principle of operation of the flywheel Does it make sense to install a lightweight one?

Welcome! The flywheel is one of the important parts of the car, which must be carefully cared for in terms of driving, because if you drive carelessly (start with slipping, engage gears without squeezing the clutch, etc.), then the flywheel and the clutch itself will not last long long life and as a result will wear out greatly and require replacement.

Why does the flywheel wear out over time? How does this part actually work? And which flywheel is better to put on your car to make the car go faster? In fact, I get asked these three questions very often, so today we will look at them in more detail!

What causes flywheel wear?

If we talk about standard flywheels, then this happens only due to heavy loads on it, namely, as mentioned earlier, when starting abruptly, accompanied by slipping, as well as when the flywheel is installed incorrectly and when driving at high engine speeds, that is when the tachometer needle is in the red zone.

What is the operating principle of the flywheel?

The flywheel is the disc itself that transfers power from the engine to the clutch, then to the gearbox, and ultimately to the wheels, causing the car to move. When this unit operates, pendulum movements occur, namely, the flywheel does not rotate along its entire axis, but only works in one place according to the principle of a pendulum; for clarity, take a look at the figure below and you will understand everything.

Note! You can understand in more detail the principle of operation of this unit at the very bottom of the article, in the section called: “Additional video clip”!

Which flywheel is best to put on a car?

At the moment there are a lot of rumors that if you put a lightweight flywheel on a car, the car will supposedly go faster. In fact, everything is true, but unfortunately not in all cases. A lightweight version of this unit should be installed on a car only if the idle and running speed of the engine is intended only for medium speeds of “1700-∞”.

Therefore, if a lightweight flywheel is placed on a completely standard engine, the idle speed of which is “800 rpm”, then in this case, when starting the engine cold, the car will most likely operate unstably and may even stall. There is only one way out of this situation: raise the idle speed of the car through various modifications to the engine, or replace the flywheel with an old one.

Note! On a lightweight flywheel, try to never bring the engine operating torque to too low speeds when driving, because this will eventually destroy your engine from overloads!

How to replace the flywheel on a VAZ?

How to make a replacement - on the classics?

Additional video: For more details about the principle of operation of the flywheel, as well as its lightweight version, see the interesting video below:

Vaz-Russia.ru

Flaws

The first thing to say is that lightening the flywheel alone will not be enough. It is also necessary to correctly configure the remaining engine parts. It will also be necessary to lighten the crankshaft and correctly adjust the alignment of the clutch basket.

Among the disadvantages are a decrease in structural strength and the absence of any visible effect at low engine speeds. It is also necessary to additionally perform balancing with the crankshaft and the generator belt pulley. A flywheel that has lost weight will conduct heat less efficiently - in winter, the transmission will require more time to warm up at idle speed. And finally, the cost of the flywheel is much higher, especially considering that this is a factory lightweight flywheel for Priora from a well-known manufacturer, and not made in a homemade garage.

If a car is purchased for standard city driving up to 3000 rpm, then the effect of lightening will be almost unnoticeable. If the car is operated more extreme (at speeds of more than 4500 per minute), then the advantages of a lightweight flywheel will be noticeable.

Theory

The main purpose of the flywheel is to transmit torque from the crankshaft through the clutch pressure plate to the input shaft of the manual transmission. Secondary, but by no means unimportant, important functions are equalizing the crankshaft rotation speed, moving the crankshaft from the top and bottom dead centers, as well as implementing auxiliary cycles of the work process. A ring is also pressed onto the flywheel, the teeth of which mesh with the starter gear and are used to start the engine.

In the process of engine tuning, of particular interest is the moment of inertia of all rotating and progressively moving parts in the engine, or more precisely, the moment of inertia of the masses. The lighter the connecting rods, pistons, crankshaft and flywheel, the less effort is required to spin them. During engine operation, a considerable share of the useful work obtained from the combustion of the air-fuel mixture is spent not on rotating the wheels, that is, on accelerating the car, but on spinning these same parts. Of course, it is simply impossible to imagine the operation of an internal combustion engine without mechanical losses. Our task is to reduce the total moment of inertia of the rotating and translationally moving masses in the engine by lightening the flywheel.

In the book “Preparing automobile engines for competitions” E.G. Singurindi, based on the data of Professor I.M. Lenin, gives the following percentage of inert masses in the engine:

85-90% - flywheel;
6-10% - crankshaft;
1-3% - masses moving forward;
1.5-3% - cooling system fan;
0.5-1.5 – pump, camshaft, oil pump and other unaccounted elements.

Difficulty in relieving

From the above data, it turns out that a huge share of the useful work from the combustion of the TPVS is spent on overcoming the moment of inertia of the engine flywheel. But the other side of the coin is equalizing the speed of rotation of the crankshaft. It is necessary to expend energy to spin the flywheel, but the kinetic energy it gains helps move the flywheel out of dead spots, thereby making engine operation more uniform. The weight of the flywheel of an average car with an engine capacity of 1.3 liters or more. fluctuates between 6-9 kg. The heavier the flywheel, the less noticeable, for example, uneven compression in the cylinders will be; also, a heavy flywheel allows the car to start at lower speeds, since at the moment of connecting the gearbox input shaft and the crankshaft, the kinetic energy gained by the heavier flywheel leads to a smaller slowdown in the rotation of the crankshaft shaft

The main disadvantages associated with installing an overly lightweight flywheel:

Unstable operation at idle. The engine will seem to be tweaking, as the effect of an overly light flywheel is similar to misfire in individual cylinders, causing the crankshaft to rotate noticeably unevenly. To solve the problem, you may need to increase the idle speed, which, of course, will affect fuel consumption;
loss of rigidity. The flywheel experiences the greatest loads on bending and torsion during the moments of supply and removal of the clutch pressure plate. An excessively flimsy structure will lead to loss of stability and deformation. The situation will be significantly aggravated by the lack of balancing after installing the lightweight part;
shock loads on the clutch and transmission elements increase. A standard flywheel is like a damper.
the cost of a lightweight flywheel and the price of installation work. Correct installation of a lightweight flywheel on a car requires preliminary dynamic balancing. Dynamic balancing must be carried out together with the clutch basket.

Advantages

Like the disadvantages, the advantages are extremely obvious:

reduction of mechanical losses. The engine becomes more torquey and responsive, since the greatest losses occur precisely in the initial spinning of the flywheel, and not in maintaining a constant rotation speed. The engine will spin better throughout the entire speed range, but the result will be especially noticeable at high speeds;
reduction in fuel consumption.

How to make it easier

The technology for removing excess metal is far from new and was used by Soviet motorsports athletes. In particular, E.G. Singurindi, in the book “Preparing Automotive Engines for Competitions,” provides drawings of the lightweight M-412 flywheel.

The moment of inertia is primarily characterized by the distribution of masses in the body and largely depends on the weight distributed along the radial dimension. In other words, every gram taken at the maximum distance from the center will be more valuable than several grams taken near the center. Singurindi E.G states that the M-412 flywheel, which they lightened from 8 to 4 kg, adequately stood the test of many competitions, and the method used was successfully implemented on other engines.

There are several methods for removing weight from a part:

uniform grinding of metal without the formation of holes (this method is also called Singurindi relief);
A milling cutter is used to machine slots equidistant from the center. If the area of the slots is large, it is recommended to weld the crown. This must be done carefully so that the metal does not move excessively.

Remember that relief should not lead to weakening of the mounting points of the clutch basket and ring. Judging by the reviews, many car enthusiasts, after relief, make do with only static balancing. If the turner is properly qualified, the factory balancing should not be radically disrupted, but you should not neglect the dynamic balancing of parts after lightening.

Is it possible to make it easier with your own hands?

Standard flywheels are used as a basis, which are then lightened by cutting off the excess. Parts are often removed on the outer radius of the part. By cutting grooves, you can remove from one and a half to two kilograms of weight. In this case, the strength characteristics of neither the flywheel itself nor its crown are violated. You can lighten the flywheel even more, removing three or more kilograms. But this option will already lose its strength.

Sometimes there are elements where the crown is welded to what remains of the flywheel after lightening. But you can’t do this - the strength is noticeably reduced.

JK Rowling on the time turner

The popular British writer JK Rowling, who gave the whole world the story of a boy wizard who was left an orphan, told fans of her work in many interviews what she thinks about this beloved artifact. Thus, the writer noted that she does not regret that she “gave” such a wonderful device to her heroes, although later she had problems with it. After the success of the third book, she realized that in the next parts of the series she needed to somehow explain to readers why Harry and his friends, knowing about the magical device, did not dare to use it to prevent the death of the same godfather Harry or the director of the wizard school.

How to reduce the weight of a flywheel with your own hands?

You need to find a turner, but first print out the Singurindi drawing. Weight loss using this technology is the safest. This is confirmed by experience - many people have used this technology.

For example, the standard weight of a classic VAZ flywheel is about 7 kilograms. Using Singurindi technology, the mass of the part can be reduced to 4.8 kilograms, but the wall on which the mounting holes are located must have a thickness of 10 millimeters. You can remove more. Then the wall thickness will be 8 millimeters. The weight will be about 4.5 kilograms. There's no point in making it any easier.

For the mounting bolt, which is used to install the clutch basket, with a diameter of 8 millimeters, a body with an equal diameter is required. If the flywheel wall is thinner, this may cause it to rupture at high speeds. It’s better not to take risks and immediately purchase a ready-made lightweight flywheel. Its price depends on the car model. Thus, flywheels for a VAZ cost from 2.5 thousand rubles. They are already balanced.

This way you can lighten absolutely any element. But it is important to take into account the strength characteristics and features. If you need to add strength, then at your own peril and risk, weld the crown using welding.

Lightweight flywheel pros and cons

A lightweight flywheel is usually installed to increase acceleration dynamics, because the engine will rotate a lighter part, which leads to a rapid increase in speed by the power unit. These changes have a positive effect on overclocking, but can lead to the following negative changes:

Even though the speed will increase faster, it will also decrease quickly.
Fuel consumption will increase because it depends on acceleration;
There is a decrease in speed when switching to a higher gear, although more accurate gear engagement occurs;
There are inconveniences while moving around the city, especially when driving in traffic jams;
Torque decreases, but power increases;
Difficulties arise when driving on roads in winter, as well as in contaminated areas in low gear;
If the engine is equipped with a turbocharger, then the use of a lightweight flywheel may lead to disruption of the engine dynamics.

It’s not without reason that designers install flywheels with specific weight parameters on mid-class cars, therefore, there is nothing to improve there. Increasing the dynamics, for example, of SUVs or full-size sedans also does not make sense. If it comes to a hatchback or coupe, then a lightweight flywheel would be a more appropriate upgrade aimed at improving acceleration dynamics.

When using a lightweight flywheel, the car owner may also encounter the following problems:

Driving in the urban cycle will be characterized by rapid acceleration and rapid braking, which will negatively affect fuel consumption;
When driving over long distances, it will be necessary to press the gas harder, which will lead to the engine operating at high speeds, and this, in turn, will lead to increased heating of the engine;
Increased engine heating contributes to increased wear of power unit components.

A lightweight flywheel is suitable for those who enjoy driving in a racing style, so the choice must be made on a part that will have lightweight edges or is made of aluminum alloy. Such a part can be found at a tuning studio or in an online store. The cost of such modernization is usually about 2 thousand rubles if the car owner carries out the installation work independently.

When installing a lightweight flywheel, you should pay attention to its strength characteristics. Strength in this case is a key factor, because failure of the flywheel during operation of the power unit at high speeds will lead to significant damage to both the engine, power transmission and body elements

For this reason, installing an upgraded flywheel is a modification for which only the car owner is responsible.

How to perform static balancing?

The process is simple, but its accuracy is low. However, this is better than installing the part without any balancing. This operation is performed by installing the lightweight VAZ-2110 flywheel on two stands. Corners with smooth edges are quite suitable as stands. They are placed strictly horizontally and the position is carefully verified.

A flat shaft is installed in the center of the flywheel, which is best ordered from a turner. Next, the structure is placed on the exposed corners. The flywheel is rotated and one notices which part of it is at the bottom. If this is the same place, then a weight is attached to the flywheel on the opposite side.

How to choose a part

If the decision in favor of purchasing a lightweight flywheel has already been made, then you will need to study several recommendations designed to make it easier to purchase the right part. Lightening the flywheel is achieved by using lighter alloys or removing some parts of the part, so when choosing such a flywheel you need to figure out which part the metal was removed from. The center must always remain fortified, so removing material here is unacceptable.

Weakening the central part of the flywheel increases the likelihood of a breakdown, after which parts of the flywheel can even fall into the passenger compartment. A torn flywheel can easily pierce the front partition of the body, which often causes serious injuries to the driver.

Making a wall clock from a flywheel

I wanted to do something new again, and not what had already happened.

I thought for a long time. And so, I decided to make a wall clock from a flywheel. I went to the store and bought a flywheel from a VAZ “classic”..

I disassembled the old clock and made markings on the flywheel so that I could drill holes in these places.

We drill holes, those places where there will be 12 o'clock, 3 o'clock, 6 o'clock and 9 o'clock, with an 8 mm drill, and all the rest, namely: 1 o'clock, 2, 4, 5, 7, 8, 10 and 11 - with a 6 mm drill. Ask why? I don’t know, I just wanted to.

On the back side of the flywheel, we screw screws with a diameter of 8 mm into the already prepared threaded holes (they were there). So that later they are supported against the wall and the flywheel itself does not touch the wall and does not scratch it.

Instead of numbers, I will have bolts screwed in, as I already wrote - with a diameter of 6 and 8 mm. We paint them with spray paint that I had left over from my previous work.

Once the paint has dried, insert the screws into the pre-drilled holes and tighten them on the back with nuts.

On the back side we glue felt pads onto the screws and nuts so that our clock does not scratch the wall.

We paint the arrows the same color.

We insert the clock mechanism from the back side, which we bought in advance with a rod height of 22 mm. We secure it with the nut that comes with the clock mechanism.

Our work is ready and we hang the clock on the wall. Look what happened:

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