Replacing the piston on the STIHL motorcycle. Useful tips

How to install a piston in the stihl 180 chainsaw cylinder

If it is time to replace the CPG of the chainsaws, you need to know that for each specific model there is an individual algorithm of action. To facilitate the disassembly/assembly work, it is necessary to prepare a candle key, a large flat screwdriver, a hammer, a compressor for cleaning the parts of the unit, a set of rock and end keys. Regardless of the manufacturer and the design features of the model before removing the chainsaw cylinder, the following work must be done:

  • Dismantling the upper protective cover;
  • Spinning candle twisting;
  • Removing the side cover;
  • With the help of a large flat screwdriver, stoppers from shock absorbers are removed;
  • In the candle channel, place the cranberry lamp and unscrew the clutch and nut of the flywheel;
  • Dismantling the leading star of the chain;
  • We remove the carburetor with an air filter;
  • Remove the ignition module and exhaust system.
replacing, piston, stihl

After removal from the base of the power unit, unscrew the pallet and take out the crankshaft with a piston from the cylinder. Using a locksmith tweezer or screwdriver, dismantle the piston fingers.

Before dismantling the Piston, it is necessary to remember its location in the cylinder in order not to spend time subsequently on re.disassembling and assembly of a power unit.

Sealant for fixing the shaft of the chainsaw

Before starting the assembly, compressed air, rags and other means to clean the parts and assemblies of the unit from dirt, remains of sawdust, dust. The first stage of replacing the piston chainsaw is to install the piston on the crankshaft. We fix it on the connecting rod with a steel finger that is included. In order to prevent the arbitrary loss of locking rings, it is recommended to install them with a cut down. Next, we mount the compression rings on the piston, but due to their fragility and brittleness to this operation, you need to approach as carefully as possible. To prevent the formation of scratches before installing the piston in the cylinder, grease the piston with oil. Before installing the crankcase (pallet), it will be necessary to degrease its mounting surface and apply a layer of heat.resistant sealant. The assembly of the chainsaw is carried out in the reverse algorithm described above.

Often the replacement of the piston of the chainsaw, crankshaft and compression rings solves problems with the idle stroke and with a problematic launch of the internal combustion engine.

Replacing the piston chainsaw Stihl 180 Videos

How to change the piston on the Stihl 180 chainsaw

The main malfunctions of the Stihl MS 180 chainsaw are associated with the piston group. Let’s see the main prerequisites for which the piston must be changed. We give a description piston

IMPORTANT. An experienced electrician leaked a secret to the network how to pay for electricity half as much, a legal way

Replacing the piston group of the Stihl MS-180 chainsaw group

The sequence and chronology of how to remove the clutch on the chainsaw is the same for all tools, but there can be several reasons for its breakdown. This is a bursting spring, the same spring can leave its place or break off a piece from the clutch plate, and its most traditional wear.

From the Chinese saw, to remove the problematic part to put a new one. it is not at all difficult. It is enough for you to be guided by the advice of specialists of the Kosikos store to do everything right.

The gas.tools store gives sensible recommendations, reinforcing their videos and schemes, but also offers to buy new spare parts in the context of its catalog. The user of the chainsaw of any type needs to know that the clutch cargo when working at idle revolutions still rotate with the crankshaft, while not touching the drum itself.

Under the influence of the efforts of the centrifugal, when the revolution begins to gain, and their number develops a value of 4,000 revolutions in 1 minute. these cargo adapts into action and it transfers the movement of the saw headset from the engine.

In any working situation, the part under consideration may become unusable completely or a separate part of it, so we will demonstrate: how to remove and replace it with a new.

STIHL MS 180 Oil supply repair

The owners of this tool model should be prepared for the fact that they may encounter such an unpleasant moment as an oil lubrication for lubrication of the chain. Oil can leak while working with the tool and even when it just lies without action.

What is the cause of this phenomenon? The fact is that the oil leaks due to tightness disorders in the area where the hose is connected to the oil tank and pump.

Interesting! Another article about oil supply here here!

In order to solve the problem of the STIHL MS 180 problem, it is advisable to disassemble the device related to oil supply.

  • Check the hose, if it is damaged, then replace it with another. Or try to degrease the hose and rinse, and put on a sealant, everything should earn.
  • Check the filter oil for breakdowns, clean it (if you poured working out)
  • There may also be a reason in the clogged intimidation, while a vacuum is formed in a tank with fuel, and affects the supply of fuel. The problem can be in adjustment of the carburetor and can be clogged, well, or air filter, you need to carefully clean the filter and channels of the carburetor.

In general, the main problem due to poor oil.

It is not recommended to pour oil into a chainsaw that is not intended!

What kind of oil to fill in the Stihl 180 chainsaw (Stihl 180)

  • Do not spare money for the original oil 2-clock stihl hp costs a little more but cleaning is even more expensive.
  • You need to pour high.quality in fuel, you can also mobile 1, and three.phase is suitable for lubrication, in no case do not fill in working out.
  • Of the inexpensive options, mineral oil is 15-40, in winter 10-30. You can m8, for example, or m10.

Remember personal safety while working with a chainsaw.

Remember that the quality of the poured oil affects the work of the chainsaw. Low quality oil can cause the instrument ineffective work and negatively affect its details.

In order for the STIHL MS 180 oil pump to supply oil without difficulty, periodically check and clean the pump. Thus, the process of supply oil will be normal.

Carburetor STIHL MS-180

The Stihl MS-180 carburetor is equipped with one idle settings screw. A full load nozzle is not regulated, that is, it is impossible to change it.

You need to know the basic rules for setting the speed of rotation during idle:

1) check the air filter, if necessary, then change it;

2) Check the sparkpent grate, if there is a need to change or clean it. Then you can turn on the engine, and then warm it up.

Repair of the Carburetor STIHL MS 180

Repair of the STIHL MS 180 carburetor is a very difficult process. Note that when repairing, the risk of sharp changes in the cylinder.piston group is practically absent.

If the chainsaw is not started, then apply the following actions:

1) open and close the gas tank lid;

2) it is advisable to extract and then drain the candle;

If after this there was no positive results, then it is better to control the condition of the air filter, the process of supplying gasoline and the functioning of the candle.

This problem is related to the valve (Slepun), which is clogged, and as a result, vacuum is formed. To eliminate this inconvenience, you need to clean the valve (Sleepun) with a needle.

Systematically check the filter, if the muffler clogs, the device will not be able to give the power that is laid in it.

If the chainsaw was purchased with a guarantee (as a rule, it cannot be another option) immediately hand over it to the service.

Thus, the Stihl MS 180 chainsaw is very convenient to use, has good ergonomics and a number of significant advantages.

Portal about construction

01.01.2019 admin Комментарии и мнения владельцев No Комментарии и мнения владельцев

Stihl MS 180 chainsaw is an indispensable tool designed to harvest wood and other construction work from wood. This is one of the most recognized garden devices that is equipped with multifunctional capabilities.

The mass of the tool is about 4 kg. Power reaches 1.5 kW, and tire length 35 cm.

Note that from the semi.professional device for this saw model there was an electronic ignition and a fairly quick tension of the circuit. In addition, the STIHL MS 180 saw has 2 tanks designed for gasoline and for oil mixture.

One of the main features is reduced vibration.

This result is achieved thanks to 4 shock absorbers. It is no secret that high depreciation harmfully affects human health and in Europe they have been fighting for a long time.

It should be noted that it is not desirable to disassemble this saw without special briefing, in this case it is better to entrust the device to the masters.

Carburetor adjustment STIHL 250

The carburetor of any chainsaw sooner or later requires adjustment, the procedure is necessary due to several reasons. For example, a chainsaw stall during work or not start at all. Simple cleaning and adjustment can help solve the problem. The Stihl 250 chainsaw has a completely standard carburetor, so the configuration procedure will be simple. Let’s consider the whole process in detail.

When you need to clean the carburetor?

This is determined by your candle, in the normal condition of the electrodes should be a brick-gray shade. A frustrated carburetor will show a black candle (enriched mixture) or with a too white coating (poor mixture).

The device of the STIHL 250 carburetor involves the location of the main screw from the muffler, this is the screw that regulates the quality of the mixture. Standardly in the store they sell a chainsaw with an unscrewed screw for 1 turnover, this is considered the norm until a certain service life. To make the mixture rich, you will have to twist the screw a little, the poor mixture will be when twisting the screw. The enrichment of the mixture in the carburetor of the chainsaw indicates a greater supply of fuel to the carburetor, while the air is supplied less. The poor mixture is characteristic of the reverse process.

Features of the Stihl MS 250 chainsaw

The characteristics of the engine play a crucial role, therefore, with a tire of 35 cm, the chain step was 3/8 ”. At idle, the engine operates at 2,800 rpm, the maximum work reaches 14,000 rpm. Sound power is small and reaches 111 dB.

Reviews of the owners are already confirmed. the chainsaw of the StiHL MS 250 is the perfect assistant in household problems, a light, strong and reliable benzo.tool. Be careful when buying, there are many Chinese fakes of the brand STIHL MS 250. (10,000 UAH), fakes by an order of magnitude cheaper. Universal chainsaw allows you to work in complete safety and high accuracy. The design and shape of the STIHL MS 250 allows you to conveniently keep the tool and produce the cut of small trees in minutes. Owners of such a model note that Stihl 250 can cope even with medium trees, the main thing is to be able to use and not overload the chainsaw.

Repair of the chainsaw STIHL MS 250

Despite the high German quality, the chainsaws can break, this happens with the wear of parts or improper operation. According to the owners, the saw may get the following breakdowns:

  • oil flows in the crankcase area;
  • The chainsaw is started and stalls;
  • no oil for lubrication of the chain;
  • Unstable work on idle.

We will analyze in detail how to fix the most difficult problem when the chainsaw starts and stalls.

Stihl 250 stalls stall

Very often the problem lies in the malfunction of the carburetor, or rather, you need to configure it. If possible, put the carburetor with another chainsaw, if you work better, set up or change the old carburetor. Sometimes it is enough to configure the idle passage and the quality of the mixture.

You can also try to start the engine without a fuel filter, remove the filter from the hose in the tank and get. If necessary, check the pulse hose.

Reviews of the owners

Despite the fact that the company STIHL requires its dealers to carry out pre.sale preparation and instruction to handle equipment, it often happens that the final user gets a box with a new trimmer that needs to be assembled. The reason for this situation may be in various circumstances: they gave the equipment and did not unpack the equipment, during the purchase they were in a hurry and considered that they themselves would figure it out and t.D and t.P. In other words, the responsibility for this lies on the seller of technology. And we devote just this topic today’s short publication and video material at the bottom of the page.

All varieties of carburetors produced by manufacturers of benzotrimmers are almost unrealistic to cover. But, since the design of this module, as well as its principle of operation, is largely similar between different models, you can make a generalized description of the processes occurring in the carburetor. This information will allow the user to understand the principles of the device, eliminate the malfunctions and properly operate.

The basis of the carburetor trimmer for the grass is an integral aluminum case. Below is a diagram of this block.

Below it, there is a diffuser, which is also called Venturi’s nozzle (18). Air is absorbed through this nozzle with a motor.

Stihl br350 backpack blower cylinder and piston rebuild part 1

In the upper part of the diffuser are fuel channels (11,12). Through these channels, the air flow, adds gasoline. The fuel pump itself, nozzles and a system used to adjust the supply of a mixture of fuel with air can be built.in or installed outside.

The throttle flap (9) regulates the amount of air sucked into the carburetor. Its number affects the power that the engine develops. Damper (7) serves for cold launch. It must be closed if you are going to start the unit. After the engine has launched, it needs to be opened, otherwise, the motor will immediately stall.

The pulse channel (1) connects the impulse chamber of the pump to the engine card, namely, with its internal volume. The piston located in the cylinder, producing reciprocating movements, sequentially changes the pressure in the crankcase (vacuum or increase in pressure). Pressure drops make the membrane move (4). Therefore, the operation of the pump is synchronized with the operation of the engine.

The gasoline leaks from the tank occur precisely with the participation of the membrane (4). Gasoline enters the carburetor through the fitting (2). Further, its path lies through the inlet valve (3), the release valve (5), through the mesh filter (6), the fuel channel (10), passes by the needle (14) and fills the camera (16), which has a control membrane (18).

Valve (14) by means of a lever (17) connects to the membrane (18). The cavity that is located below the membrane is connected to atmospheric air through the hole (19).

The device is functioning as follows.

  • During the suction tact, a vacuum is created in the diffuser. This fact causes air leaks. The amount of air entering the carburetor chamber, as well as the engine power and the amount of its revolutions and the amount of its speed, depends on the position of the throttle.
  • At this time, a fuel from the chamber (16) is sucked through the nozzles (11,12), after which it is mixed with leaking air. Gasoline, mixing with air, begins to spray. Thus, a fuel mixture is created.
  • The finished mixture enters the cylinder, where it is compressed by the rising piston and is ignited at the verge of its point from the spark, produced spark plugs produced.
  • Since the volume under the control membrane (18) is connected to atmospheric air through the canal (19), the membrane goes up, opening by means of a lever (17) valve (14). After the valve is opened (14), a new portion of fuel enters the camera (16).
  • After the camera (16) is filled, the membrane (18) returns to its original position, and the valve (14) is closed.

Further, during the operation of the motor, all of the above processes are repeated. To adjust the number of fuel entering the diffuser through the nozzles, a screw is used (13). A screw (15) is also used to set up idle speeds. When twisting the regulators, the fuel mixture is enriched, and when twisting, the mixture impoverishes occurs. Also, in some models of carburetors, you can adjust the idle speed by the amount of the engine by the number. It is usually located on the outside and, when twisting, rests on the lever, fixed on the axis of the throttle.

Thus, using 3 adjusting screws, you can achieve maximum engine performance, as well as set up its uninterrupted operation at any ambient temperature, and even in mountainous areas.

Instructions for users

Any gasoline tool before starting use needs preliminary running.in. At this time, mobile parts are laid to reduce resistance. Since this stage takes place at low speeds, it is easier for a beginner to master such equipment.

Before starting work, you should prepare the mixture. Its parameters and materials used are indicated in the technical documentation for the product. It looks approximately in this way: 2.5 liters of 95th gasoline are mixed with 100 grams of STIHL oil from red packaging. This procedure should be carried out in a container resistant to aggressive fluids. A simple metal canister is not suitable due to rusty areas that cannot be detected inside. Corrosive particles, falling into the carburetor, score it, which leads to the failure of the details.

During the warranty period, the lawn mower needs to maintain and configure the carburetor. It is recommended to do this in an authorized technical center.

replacing, piston, stihl

How to change the piston on the Stihl 180 chainsaw

If it is necessary to replace the old piston and the installation of a new one, you need to know how to correctly do and observe a certain algorithm of actions. It is also necessary to have a small slotted screwdriver, a special combined STIHL key, a power screwdriver, a hammer, a grocery boot, a compressor and a stop for a stihl piston.

Starting to work on replacing the piston or piston group assembly, the chainsaw must be cleaned as well as possible from pollution. Further, the work is carried out according to the following algorithm:

  • The upper cover is removed from the saw and the spark plug is removed.
  • The side cover is removed.
  • With the help of a power screwdriver, a stopper is removed from the chainsaw shock absorbers, after which its handle is disconnected from the body.
  • Next, it is necessary to remove the leading star and starter.
  • In the candle hole, install the piston stopper and spin the tank mount nut and clutch.
  • Remove the flywheel, clutch and mechanism of the worm drive of the oil pump, which is located behind the clutch.
  • Spin two screws of mounting a carburetor and air filter. Remove the filter, engine control lever and STIHL carburetor.
  • Remove the ignition coil and muffler.

After all these operations are carried out, it is necessary to clean the saw from the dirt again, then turn it upside down and unscrew the four screws for fastening the engine to the chainsaw body. Having unscrewed the screws, the engine is separated from the body and is cleaned again.

On the removed engine, the pallet is untwisted and removed, after which the piston assembly with the crankshaft is removed from the engine.

Removing the piston from the cylinder, it is necessary to remember how it was located relative to the cylinder.

Further, with the help of a small screwdriver, the locking rings of the piston finger are removed, and the crankshaw is disconnected from the piston.

How to remove the cylinder on the chainsaw of Stihl 180

Repair with your own hands chain saws “Shtil 180”.structure

Calm 180 chainsaw has established itself in the construction market. This portable device has a capacity of 1400 watts, and engine volume. 31 cubic meters. The length of the saw chain is 350 mm, with idle turnover it is more than 2 thousand revolutions. Its popularity among consumers is also explained by the acceptable cost of the tool. However, when using a chainsaw, failures occur from time to time. In service repair, tools are not cheap, so those who understand at least small technical problems eliminate failures with their own hands.

The main malfunctions and ways to eliminate them

The work of the tool should be performed in accordance with the instructions attached to it. Turn on the start button this should be only after checking the tension of the circuit, the presence of fuel mixture and oil. Reliably fixing the chainsaw in your hands, you can start working.

If the tool does not work, you must first determine the cause of the malfunction. And the tools for repairing the chainsaws will correspond to the most common: various screwdrivers, end keys and wrench, hexahedra.

Oil for chain lubrication

Sooner or later, each owner of the tool will face this problem. The cause of such a malfunction is a leak in the connection between the oil pump and the oil tank hose.

To eliminate this problem, completely dismantle the chain saw.

  • If the hose is damaged, it is better to replace it with a new. You can try to fill it with sealant, first degrease and rinse.
  • Oil can flow due to the fact that the oil filter is clogged or broken. It should be checked, cleaned or replaced.

If the chain saw does not start

If you believe the experts, then with this problem, first of all, you just need to open and close the lid on the gas tank. After that, it is necessary to ventilation of the combustion chamber, as well as pull out and dry the candles. These actions are sufficient to start and work tools. If the malfunction is preserved, you should look for the cause in another.

  • Fuel supply affects the respite. Therefore, if it is clogged, a vacuum forms in the fuel tank, and the saw does not start. Sapuna repair is very simple. It should be cleaned with a needle.
  • Calm 180 chainsaw may not work due to a broken cylinder. If the cylinder has chips or unevenness, then the reason is.
  • If the tool does not start, it holds food or trays immediately after turning on, the cause of the malfunction can be in the muffler. It can be clogged with any deposits that occur during operation in the process of exhaust gases.
  • A bad start may be associated with a starter malfunction. To see this, remove the cover from the carburetor and twist a special screen by the drum. If the contact wire has left the starter, it must be attached using a soldering lamp. If the problem is the leakage of the oil, then the starter is simply wiped with a rag.

Read what size of the chain for the chainsaw Dolmar 109

Dismantling the chainsaw 180 part 1

In this video, we will show you how to replace the piston group with Stihl chainsaw

Replacing the piston group with the STIHL MS180 chain saw

In this video I will tell you how to correctly disassemble the stihl tape

The engine saw engine works unstable

The cause of such a malfunction may be a broken cylindrical piston group, which is quite simple for manually repair.

To remove the cylinder from the tank, it is necessary to unscrew four bolts on the head. Then carefully check the piston on which there should not be scoring, scratches, chips. If they are, then the piston will need to be replaced.

The optimal pressure in the combustion chamber is provided with piston and piston rings, which should be securely fixed on the piston case. If the piston inserted into the cylinder has a free move when swinging, this indicates its wear.

You can eliminate this defect by drilling a cylinder and installing spare parts. However, the easiest way to replace the full set of CPU. Replace it.

Read chainsaws start and stall the reason

Malfunctions and repair of the carburetors of the chainsaw

That if the tool stops rotating, begins to break down, lose power, not idle? Quite often, the cause of such breaks is a carburetor that can be clogged with dust, dirt or sawdust. You can deal with this problem with your own hands.

All carburetors are cleaned the same, the main thing is not to be afraid and not lose anything. For repair, it will be necessary to prepare:

First of all, cleaning with a brush, dirt and dust. Then remove the lid and filter. Unscrew the two nuts of the air filter and remove the air tank body. Now you can see the carburetor and pull the “absorption” and the accelerator. Lowering the damper with your finger down, you need to remove the accelerator lever.

To extract the carburetor from the seat, first remove the suction lever and completely close it. Now you need to remove and pull the engine stopping wire. It is also necessary to remove the plastic lever on which the wire is attached. On the right it is inserted into the hole, and on the left it can be raised.

The carburetor is released, it can be pulled out and cleaned. It is best to do this using a compressor, but if this is not so, then the details can be washed with clean gasoline.

Do not forget about the fuel filter, which also needs to be removed and blowing the fuel hose. All the way back.

Read chainsaw stalls outstall gasoline in the Tshil Tshindra

STIHL MS260 Top End Rebuild & Crank Seals Replacement

If, after assembling the carburetor, the saw does not start properly, and the smoke pours out of the silencer, then, most likely, the spring is lost under the needle lever. Due to the lack of this spring, the needle does not block the supply of fuel, so the candle is “poured” with gasoline. Of course, in order to eliminate this malfunction, you need to find a spring and put it in place.

When repairing a carburetor, remember that this is a rather complicated assembly, consisting of various small rings and parts. Therefore, it must be cleaned and repaired with particular caution and caution.

The algorithm for determining the malfunction

The reason for the refusal of the saw or the deterioration of its performance may be:

  • a clogged battleship cover;
  • Air sucker with a carburetor due to the destruction of the gasket or weakening of threaded fasteners;
  • Mechanical sequel of removable saw equipment and other minor defects.

How to change the piston on a benzocosa yourself.

Before starting disassembly, you should verify the need for a more volumetric repair.

Independently assemble a new chainsaw after repair with initial quality, most likely it will not be possible. In the design of modern chainsaws, press plantings of conjugated parts are often used, which have minimal maintainability.

Even a partial analysis of a chainsaw with an improvised tool can lead to undesirable consequences. In most cases, to eliminate a malfunction, you can limit yourself to the dismantling of a separate node or system.

Piston chainsaw replacement algorithm

If it is time to replace the CPG of the chainsaws, you need to know that for each specific model there is an individual algorithm of action. To facilitate the disassembly/assembly work, it is necessary to prepare a candle key, a large flat screwdriver, a hammer, a compressor for cleaning the parts of the unit, a set of rock and end keys. Regardless of the manufacturer and the design features of the model before removing the chainsaw cylinder, the following work must be done:

  • Dismantling the upper protective cover;
  • Spinning candle twisting;
  • Removing the side cover;
  • With the help of a large flat screwdriver, stoppers from shock absorbers are removed;
  • In the candle channel, place the cranberry lamp and unscrew the clutch and nut of the flywheel;
  • Dismantling the leading star of the chain;
  • We remove the carburetor with an air filter;
  • Remove the ignition module and exhaust system.

After removal from the base of the power unit, unscrew the pallet and take out the crankshaft with a piston from the cylinder. Using a locksmith tweezer or screwdriver, dismantle the piston fingers.

Before dismantling the Piston, it is necessary to remember its location in the cylinder in order not to spend time subsequently on re.disassembling and assembly of a power unit.

Sealant for fixing the shaft of the chainsaw

replacing, piston, stihl

Before starting the assembly, compressed air, rags and other means to clean the parts and assemblies of the unit from dirt, remains of sawdust, dust. The first stage of replacing the piston chainsaw is to install the piston on the crankshaft. We fix it on the connecting rod with a steel finger that is included. In order to prevent the arbitrary loss of locking rings, it is recommended to install them with a cut down. Next, we mount the compression rings on the piston, but due to their fragility and brittleness to this operation, you need to approach as carefully as possible. To prevent the formation of scratches before installing the piston in the cylinder, grease the piston with oil. Before installing the crankcase (pallet), it will be necessary to degrease its mounting surface and apply a layer of heat.resistant sealant. The assembly of the chainsaw is carried out in the reverse algorithm described above.

Often the replacement of the piston of the chainsaw, crankshaft and compression rings solves problems with the idle stroke and with a problematic launch of the internal combustion engine.

How the cylinder block is repaired?

For recovery, the master completely disassembles the motor and examines its working parts. Measurements are made that allow you to accurately evaluate the condition of the equipment and understand what repair procedures you need to perform. During major repairs, there is a binder of parts if they are made of suitable materials for this.

The recovery process also includes other stages:

  • assessment of the efficiency of the piston stroke, measured the created compression in the working chamber;
  • checking the integrity of the equipment, searching for the presence of mechanical damage, scratches;
  • analysis of the state of fasteners of the piston, elimination of backlash and other problems;
  • Checking other equipment that affects the work of the piston group.

To restore the chainsaw cylinder successfully, the master conducts a number of checks after the assembly of the equipment. It is important that the power corresponds to the factory parameters, and in idle work and under load of the saw, it demonstrates stable speeds. Only after such checks can the repair of equipment be considered completed.

Why is the stihl chainsaw is not started after replacing the piston

If the saw does not start after replacing the piston, it is necessary to check the fuel supply to the chamber, as well as diagnose the ignition system. Very often, when installing the control lever on the chainsaw, the masters forget to connect the wires coming from the ignition coil, as a result of which the spark disappears and the saw does not start.

Also, the problem can be hidden in the overflow of the fuel supply hose or if it is not connected at all. Of course, there can be many reasons, but it is worth remembering that in the event that all the work on replacing the piston is carried out correctly, the tool should start without any problems and work normally.

Carburetor breakdown

Stilea carburetor is characterized by the presence of just one screw that is responsible for adjusting the idle (xx)

During the operation of the equipment, it is very important to pay attention to the frequency of rotation of the screw at xx. You can configure these parameters by checking the air filter and sparkling valve

The following signs are said that a chainsaw carburetor requires adjustment:

  • The engine starts very poorly and turns off almost immediately;
  • large fuel consumption, strong exhaust;
  • Factory settings of the chainsaw are shot down;
  • improper operation of the air cleaning system;
  • worn piston system.

It is worth immediately drawing your attention to the fact that the installation of a saw carburetor is a rather complicated process. If the equipment has ceased to work suddenly, such actions should be performed:

If these actions have not given the result, it is necessary to check the air filter and suitability of the candle. If the problem is in the carburetor, you should contact the service center. These works are quite complex, and it is almost impossible to perform them on your own at home.

We examined the main causes and malfunctions of the Stihl MS 180 chainsaw in which the replacement of CPG is needed. But, as a rule, in each case, the reasons can be intersected, and for proper repairs, a comprehensive approach to solving the problem is needed. Put a new piston on the saw, this does not always mean solving the problem. It is necessary to eliminate the causes of the malfunction and the tool will serve for a long time without problems and the need to repair.

The main malfunctions of the Stihl MS 180 chainsaw are associated with the piston group. Let’s see the main prerequisites for which the piston must be changed. We give a description piston

IMPORTANT. An experienced electrician leaked a secret to the network how to pay for electricity half as much, a legal way. Read more

How to change the piston on the Stihl 180 chainsaw

As needed, the replacement of the old piston and the installation of the latest, you should know how true this is and observe a certain method of action. You also need to have a small slotted screwdriver, a special combined STIHL key, a power screwdriver, a hammer, a groove made of soft material, a compressor and a stop for a stihl piston.

Starting to work on the substitution of the piston or piston group assembly, the chainsaw must be cleaned with maximum quality from pollution. Further, the work is carried out according to the subsequent method:

  • The upper cover is removed from the saw and the spark plug is turned.
  • The side cover is removed.
  • With the help of a power screwdriver, a stopper is removed from the chainsaw shock absorbers, after which its handle is disconnected from the case.
  • Next, you need to remove the driven star and starter.
  • In the candle hole, install the piston stopper and spin the tank mount nut and clutch.
  • Remove the flywheel, clutch and mechanism of the worm drive of the oil pump, which is placed behind the clutch.
  • Spin two screws of mounting a carburetor and air filter. Remove the filter, engine control lever and stihl carburetor.
  • Remove the ignition coil and muffler.

When these operations are carried out, you need to additionally clean the saw from the mud, then turn it over the bottom up and turn out the four screws for fastening the motor to the chainsaw body. Having twisted the screws, the engine is separated from the body and is cleaned again.

On the removed engine, the pallet is untwisted and removed, after which the piston assembly with the crankshaft is removed from the motor.

How to remove the pump

The oil pump is installed on the right side of the bottom of the case, in the same place the oil pipeline coming from the tank of the chainsaw is suitable for it. To remove the pump, you will first need to release the saw from the handle, for this the rear handle of the unit is spent and the thrust of control of the throttle is disconnected. At the next step, it is necessary to pull out the plugs of the handle shock absorbers and with the help of a strong slotted screwdriver, squeeze them out of their own seats on the handle.

After the handle is removed, the chainsaw case is turned upside down. The hose going from the oil tank to the pump will be seen immediately. STIHL oil pumping device device