Stihl gasoline flows out gasoline. Fuel system

When and why it floods the candle in the chainsaw: repair instructions

For a regular and uninterrupted formation of a spark in the internal combustion chamber, airspace are required, without which the discharge will go into fuel without igniting it. To influence the stability of the candle, maybe even a small amount of moisture on its contacts, and their partial or complete immersion and completely, with complete confidence, will disable the element. On what signs to determine the transfusion of the combustion chamber, how to identify the cause and restore the work of the chainsaw on their own. clearly and capacious, in this article.

The most striking, albeit obvious marker of excessive filling of the combustion chamber, is expressed in the banal failure of the engine to start. It is possible to identify this problem by analyzing actions preceding the launch of the saw and storage conditions of the tool. Perhaps, at the first launch with a closed air valve, a beat was missed and several extra starter jerks were made. If this is the first launch, after a long.term “vacation”, to which she worked normally, it is likely that the fuel that coarse the membrane or needle was not muckled from the system.

Of all the few methods that allow you to determine when it fills the candle in the chainsaw, is the most effective and effective, canceling the need for any other forecasts. The usual extraction of a candle from the nest and a visual inspection of contacts instantly dispels all assumptions, allowing you to plan a sequence of further actions to solve the problem. To remove the required element, just perform the following manipulations:

  • Remove the top cover of the air filter that closes the carburetor and part of the engine.
  • Find and remove the rubber cap (supra.light).
  • Special hexagonal key (is included in the saw), unscrew the spark plug from the combustion chamber.

Why flies a candle in a chainsaw

There are several common reasons for overflowing the combustion chamber, but, fortunately, each of the possible problems can really be eliminated without special skills. Among the actual reasons for filling the candle can be distinguished: an error at the first launch, a carburetor defect or clogging of an air filter. To get an extremely complete performance and understand why it fills the candle on a chainsaw, it is better to get acquainted with a brief analysis of each problem.

An error at the first launch of the saw (on cold) is expressed in the excessive supply of the fuel mixture after several extra starter rotations. Distracted, or by inexperience, you can skip the moment of ignition and continue attempts to launch. Since the air damper at this stage is closed, with each starter jerk, only the fuel mixture will enter the camera, which will be recruited without the possibility of ignition. 5-10 extra revolutions are enough to pour contacts, after which the engine will no longer start, even if you open the damper.

Carburetor defect does not occur from scratch, but after prolonged storage of the tool without draining fuel. A mixture of gasoline and oil begins to break up already in the first month, reacting with miniature components of the mechanism that it envelops. First of all, the membrane grieves, violating the rhythm of its work. The axis of the float (rocker hand) grossed, making it difficult to include, and the tip of the needle is eaten, reducing the tightness. Even one of the 3 indicated defects is able to upset the operation of the carburetor system, which will not be able to restrain the moderate supply of fuel.

The clogging of the air filter occurs after several tens, or even hundreds of hours of operation. The reason is so banal that sometimes they lose sight of it, passing on to other options. Mud clogs pores, seriously reducing the throughput of the material, and therefore the speed gradually falls, and with severe gesture, the chainsaws are burst and stalls stall. The condition of the filter is easy to evaluate “by eye” by examining it at the time of taking out the candle for verification (they are under the same lid).

Why flies a candle on a chainsaw?

When filling the candle on the chainsaw, you need to immediately conduct a thorough test of the tool.

  • Checking the plug. Part of the regular service of the STIHL chain saw is to remove the fork and inspect it (recommended every 10-15 hours of work.) If the engine works fine, the external electrode will probably be covered with light brown deposits. The operator must check the gap between the electrodes using a special tool. If the engine works normally, the problem manifests itself in the state of the plug fork. Thick black deposits indicate that a mixture of fuel and air is not balanced. In other words, the mixture is not enough air. On the other hand, wide gaps or corroded electrodes are indicators of the depleted mixture. The oil on the traffic jam indicates a leak.
  • Clean or replace? If the fork is covered with light brown deposits, and the gap is correct, the operator does not need to do anything with a fork. It is enough to return it to its place, and the chainsaw should continue to work normally. If it is covered with black deposits or oil, you need to remove this layer with sandpaper. If necessary, you need to adjust the gap with pliers. One of the conditions indicating the need to replace is the wear of the electrode. If the engine has stalled, you need to check it using the spark plugs and replace it if the spark is not strong or appears through time.

Avoid using ethanol fuel

When pouring a STIHL chainsaw supplies, you can suspect the guilt of low.quality fuel. Regardless of Stepsel after 100 hours of work, STIHL recommends replacing it with a new. Use a resistor type fork and check the guide for your STIHL chain saw, studying the page about the recommended replacements. If the fork needs to be replaced, because it is very worn out, perhaps the reason for this is the use of gasoline with the addition of ethanol.

Ethanol does not burn like gasoline, and can cause engine overheating. One of the symptoms of this is worn electrodes, and then flooding the candle. STIHL recommends 89-octane gasoline without ethanol. In no case should gasoline contain more than 10% ethanol.

What to do when floods a candle on a chainsaw

Before going to the service center, it will be useful to independently try to eliminate the current fault of flooding the candle on the chainsaw. Of course, this is relevant only in the presence of “straight” hands, since, otherwise, it is likely to increase the cost of repair work.

Poor.quality fuel

The chemical composition of low.octane gasoline includes various alcohol components. It takes more time to complete combustion than when using high.quality fuel, respectively, this becomes the main reason for the failure of the chainsaw candle.

Unfortunately, many citizens naively believe that the fuel with the inclusion of alcohol has a positive effect on the consumption of gasoline and acquire fuel surrogates. In some cases, economy really takes place, however, such fuel negatively affects the chainsaw engine, reducing its service life.

Incorrect launch

As a rule, during the first launch of the chainsaw, inexperienced men miss “cotton” with a closed air damper and continue to pull the starter. Because of this, a large amount of fuel accumulates in the combustion chamber, but there is not enough air. The candle is poured with excess gasoline and there can be no question of any spark.

The clogged filter

Due to the strong pollution of the paper filter of the chainsaw, a sufficient amount of oxygen does not enter the fuel chamber. The fuel mixture does not have time to ignite and gasoline fills the candle.

If the filter has already developed its resource (this will be noticeable in its appearance), then it must be replaced.

If the new filter is not at hand, but it is still necessary to work, then you can try to blow the filter in the back air flow.

The chainsaws of various manufacturers and model rows differ from each other. To clean or change the filter, it will be useful to initially see the operating manual. Well, or look there if you can’t extract a filter without tips.

Ignition system failure

Perhaps this is one of the most difficult problems that will need to be overcome for the further use of a chainsaw. The causes of the malfunction here can also be several.

We also recommend reading about the device of the chainsaw, this information will help significantly when solving problems.

The wrong gap

For the most part, the gap on the lighting candle of the chainsaw should be within 0.5. 1.2 millimeters (more accurate data should be reflected in the user guide). In order to check if this is, it is necessary to perform the following actions:

  • Using a screwdriver or special keys, the bolts are unscrewed that fix the chainsaw cover.
  • Having gained access to the flywheel and the magnetic circuit, the level of gap is checked.
  • If it does not correspond to the characteristics declared manufacturers, then with the help of a special laying or improvised means (an ordinary A4 sheet, folded several times) is perfect).

Problem in the ignition coil

To make sure the ignition coil is in good condition, you must be able to use a multimeter. This device allows you to measure the degree of reel resistance. There will be resistance in the good coil. In the burned out. cliff or short circuit.

If the coil is in good condition, then the gap between the coil and the flywheel may be broken. To configure it, you need to perform a number of simple actions:

  • Dismantling the saw case and the weakening of the bolts on which the ignition system is recorded. To the coil itself, you need to bring the magnet (magneto) of the flywheel.
  • The adjusting plate is inserted between the magneto.flywheel and the coil itself. The gap should be within 0.2 mm.
  • After tightening the bolts, the plate for adjustment is obtained.
  • It is necessary to completely and several times (2-3 will be enough) scroll the flywheel. While he should not cling to the coil.
  • The final stage is the assembly of the chainsaw building.

We also recommend reading an article about the ignition system and methods of checking its coil by a multimeter, all the nuances are dismantled in it and tips for eliminating faults with your own hands are given.

Carburetor adjustment failure

Often the candle on the chainsaw flies due to the incorrect operation of the carburetor. For greater clarity, we recommend watching this video

If you first set up the carburetor yourself, then pay attention to the following factors:

  • The presence of built.in compensators and other automatic control elements makes it impossible to adjust without special equipment. In this regard, you will have to contact a specialized service center.
  • In the absence of the proper effect of adjusting the carburetor, the cause of filling the candle will be, there is a freezing of the float or the lack of tightness of the valve.

Carburetor malfunction

If all the actions described above did not lead to success, perhaps the cause of the unemployment of the chainsaw lies in the malfunction of the carburetor.

STIHL 180 gas supply

STIHL MS 180 chainsaws. an unexpected tool created to harvest woody rock and other systems of wood work. This is one of the most universally recognized garden devices that is armed with functional abilities.

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

Note that from the semi.professional device for this saw model there was an electrical ignition and a rather red tension of the circuit. chain chain. Understand why it flows: why does the oil flow from under. Apart from this, the STIHL MS 180 saw has 2 tanks created for gasoline and for oil consistency.

One of the main features is reduced vibration.

Such a result is achieved thanks to the 4 shock absorbers. It is not a secret that the highest depreciation has a harmful effect on human health and in Europe has long been struggling with it.

It must be emphasized that without the help of others to disassemble this saw without special briefing is no better, in this case it is better to entrust the device to the masters.

Husqvarna chainsaw repair

The main node of the system is the pump. The principle of its work is subsequent. With an increase in the engine speed, the gear installed on the main shaft, through the worm gear, the pump shaft drives in motion. In turn, the rotation of the shaft makes a certain pressure in the oil line, which forces the oil to move along it towards the tire. The end of the oil channel is located at the place of contact of the tire with the tool card, where there is a longitudinal groove on which its oil channel gets when installing the tire.

A groove is needed to ensure the supply of oil to the tire, regardless of the degree of tension of the chain of the chainships. Simply put, no matter what position the tire is at the time of operation, the oil will fall through the groove through the groove.

Then a chain is included in the lubricant process, on the links of which, depending on the model of the circuit, there is either a groove or a hole through which the oil is accelerated over the entire bus. With an increase in engine speed, the oil supply speed also increases.

Some models of the chainsaws are equipped with pumps, which additionally have the adjustment of the bandwidth, and if necessary, the amount of oil supplied by the lubrication system can be increased or reduced.

Principle of operation

Before identifying the malfunction and repairing the chainsaw “Stihl 180”, the principle of its action and what constructive elements it consists of. The chainsaw of the chainsaw must have its main element. a two.stroke engine. It is he who is responsible for the reliability and performance of the device. The engine is involved in the launch of the chain drive and maintaining its movement under the influence of centrifugal adhesion. In addition to the electric motor, the chainsaw includes:

  • starter;
  • flywheel, he is also a cooling knot;
  • ignition unit;
  • clutch and brake mechanism;
  • carburetor with STIHL compensator;
  • air filter;
  • fuel and oil tank;
  • muffler;
  • Anti.vibration system.

The fuel from the tank enters the carburetor, where air is mixed to it that gets from the cleaning unit. From a carburetor, a mixture of air with fuel enters the engine. The saw carburetor has one building screw that controls the work of the idle. All the settings of the device are made at the factory and provide the optimal supply of fuel-air mixture.

In the motor cylinder, the mixture is set on fire, and with the help of the starter the engine is launched. Under the influence of the piston, the shaft, which is part of the crooked-shaped mechanism, begins its movement. There is a star on the shaft, on which the links of the chain are put on.

The chainsaw uses a single.cylinder motor. As a protection mechanism, a coupling is used, which, if the circuit is jammed, convert the electric motor into the idle mode. At the initial speeds, special overlays located in the radial direction are pressed by springs to the middle of the shaft, thereby not allowing it to rotate. At high speeds, the centrifugal force increases, which leads to compression of the springs. The pads are squeezed from the center of the shaft, the asterisk rotates and the chain starts.

The electrical circuit of the device is involved in the ignition system. Due to the use of a flywheel with magnets during rotation, an electric motion force (EMF) occurs, which leads to the appearance of current in the electronics block. The block directs the signal to the candle, provoking the appearance of the spark on its conclusions. This spark falls a mixture coming from a carburetor. After a successful launch occurred, the chainsaw begins to repeat all the work processes in the cycle.

Chainsaw cutaway #1 how a 2 stroke works!!

The device circuit is typed from teeth and connecting elements. To protect the user from the reverse impact, the device is equipped with a brake system. The oil supply occurs in automatic mode under the action of the pump.

Circuit automatic lubrication system

Everyone who taught physics understands that at the time of movement of the chain, friction occurs along the tire, which, in turn, leads to an increase in temperature in the working area and premature wear of details. To soften this process, you must constantly lubricate the working area. Actually, for this purpose, a chain lubrication system was developed.

Read How to choose a chain for a chainsaw in size

The operator floods the oil into the tank, which through the oil pump enters the saw set. The system is mounted in such a way that with increasing loads, the oil is released in large volumes, at idle, the system stops its activity.

Faulty ignition system

When Chinese chainsaw stalls, inspect the spark plug. If it is completely dry, then this indicates that the fuel was not received in the cylinder, which means that the reason for the faulty operation of the tool should be sought in another node. If the candle is flooded with oil, then you need to adjust the carburetor.

In addition, you need to thoroughly clean the candle, block the fuel supply, ventilate the chamber after removing the traces of fuel, after which the starter system is launched. When the candle is installed in place, the engine is checked.

If you notice a black color, change the oil to high.quality or adjust the ratio of consumables. In this case, the candle is also cleansed (in some cases you need a needle or awl), as well as its cleaning using the electrode skin.

When you install the candle in place, do not forget to correctly install the gap between the electrodes. Optimal width. 0.5 millimeters.

Fuel system malfunction

There may be several reasons for this problem:

  • Polluted fuel filter. It is easy to identify the reason when examining the fuel system after dismantling the hose. A weak stream of fuel indicates the need to cleanse the fuel filter. If cleaning did not help, a new hose is installed in this node.
  • The saapoon installed on the tank cover was clogged. You can clean it with a needle of suitable diameter.
  • Too rich fuel mixture. Helps to cope with this problem again, cleansing the fuel filter.
  • Incorrect tuning of the carburetor. You can configure it yourself, relying on the instructions presented in the operating manual for your power unit.

Basil does not hold idle speed

It often happens when, after prolonged transportation and constant use of a chainsaw, he refuses to work evenly at idle. As a rule, this problem is eliminated by the adjustment of the carburetor.

You can find out how to correctly debug the carburetor from this

If the carburetor is rebuilt like a clock, then you must check:

  • Fuel system. Start more logical from the fuel pump.
  • Muffler. It is likely that due to the abundance of accumulated soot, the engine cannot function normally.

Service and repair of chainsaws

When taking into account the recommendations of the manufacturer, you can significantly extend the service life of the device. Other private malfunctions can be called:

FUEL TANK VENTS AND WHAT YOU NEED TO KNOW (funny blooper)

Fault repair methods are selected depending on the design itself. In some cases, it is necessary to replace the entire node, in other only individual elements.

If you find an error, please select a fragment of the text and click Ctrlenter.

I conquer a chainsaw and she immediately begins to smoke, then the maximum warms up and stops, this is the norm or something is wrong, the chainsaws are in the order who has a chainsaw, clarify how it happens and why one or the wrong way or not like this.

Well, when starting up, in general, there should be, there is nothing wrong with that, a cold carburetor car behaves the same way. Another thing is if he smokes very much. Then it is necessary to adjust the carburetor and after this smoke most likely become noticeably smaller. It also happens from non.high.quality oil, so use only proven brands and do not subject the tools to test surrogates.

This behavior of a chainsaw is not a sign of any malfunction.

Since the saw in the crankcase contains both fuel and pairs, naturally gasoline will disappear during the rest of the saw, and the dissolved oil will remain there, plus the formation of condensate in a two.stroke engine and carburetor are possible.

After you started a chainsaw, and, in principle, any two.stroke engine, all this should leave with the warrant (as experts expressed), after which the exhaust becomes less smoky, and the saw was more frisky than with a cold motor.

So do not be afraid, this is normal, the main thing is to pay attention to the exhaust of the saw during work, if it is very smoky, then either a lot of oil was pounded, or it is not very good quality or not for two.stroke engines at all at all.

Work of filters

The next most popular reason for the malfunction of the saw is filter clogging. The cutting tool consists of two filters. air and fuel. These details are responsible for different processes, but equally contribute to cleaning and delay foreign particles.

Fuel filter

Checking the fuel filter is carried out as follows:

  • The fuel supply channel is disconnected from the carburetor.
  • Gasoline is pumped.
  • The flow of fuel is monitored.
  • If gasoline comes under a weak pressure (or does not come at all), then a conclusion is drawn about clogging the fuel filter.
  • All gasoline is removed from the tank.
  • The filter element is disconnected using a hook.
  • Cleaning a shift cartridge is carried out. If desired, this step can be skipped and replaced by a clogged filter with a new.
  • The saw is going back.

Filters have the property of polluted over time. Therefore, experienced owners of chainsaws are cleaning filters as a prevention. The frequency of this procedure depends on the conditions in which the master works. If there is a lot of dust in the workshop, then cartridges are polluted faster.

Air filter

As a result of clogging of the air filter, the saw engine begins to unstable. In practice, this factor leads to a periodic shutdown of a saw or difficulties with an institution. The absorbing material accumulates dust and dirt, the large volume of which leads to complete obstruction of the membrane. When the air stops entering the system, gasoline becomes too enriched.

The air filter is cleaned according to a similar scheme:

  • The chainsaw opens, after which the air filter is extracted.
  • When taking out the filter, it is prevented from entering dust particles into a carburetor.
  • The cartridge is disconnected and cleaned of accumulated dirt.
  • The surface of the filter is processed by means of washing liquid.
  • The element is thoroughly dried.
  • The saw is going back.

Breather

Repair of the fuel supply system

Fuel may not fall into the cylinder for the following reasons:

  • Fuel filter pollution. The fuel hose should be removed and check how the fuel flows. If the stream is weak, you may need to clean the filter. It is taken out through the pouring hole of the fuel tank and cleaned, in the case of severe contamination, it is replaced with a new. As a prevention, it is recommended to replace the fuel filter every three months.
  • Clogging of the saapun (holes in the lid of the fuel tank). They are also checked by disconnecting the hose, in the case of a blockage, cleaned with a needle.
  • Absence or insufficient fuel. There may be several causes of the malfunction. The first reason is the clogging of the air filter. The air stops entering the carburetor in the right amount, in this regard, due to the too enriched fuel mixture, the engine operation is disturbed. The contaminated filter is neatly removed, cleaned and washed in water, then dried and installed in place.

Another reason is the incorrect regulation of the carburetor. Adjustment is carried out by three screws.

Timely replacement of the fuel filter guarantees a full fuel supply

The fuel hose and the drive of the air damper should fit tightly to the fittings

The cable of the lever of the throttle drive should be in its place

stihl, gasoline, flows, fuel

During operation, you need to use the instructions, otherwise you can only make it worse.

Pass a leak test

Before you continue moving, make sure that the fuel tank proceeds after repair. To do this, fill the gas tank with water to the lid and leave for one day. The absence of a puddle indicates the closure of a crack or hole. The next step is to check the seam tightness under pressure. The fuel tank should be turned so that the seam is below, and the mass of the liquid presses on it.

After installing the gas tank in place, the connection is checked, after which you can hit the road.

Repair of the fuel supply system

Fuel may not fall into the cylinder for the following reasons:

  • Fuel filter pollution. The fuel hose should be removed and check how the fuel flows. If the stream is weak, you may need to clean the filter. It is taken out through the pouring hole of the fuel tank and cleaned, in the case of severe contamination, it is replaced with a new. As a prevention, it is recommended to replace the fuel filter every three months.
  • Clogging of the saapun (holes in the lid of the fuel tank). They are also checked by disconnecting the hose, in the case of a blockage, cleaned with a needle.
  • Absence or insufficient fuel. There may be several causes of the malfunction. The first reason is the clogging of the air filter. The air stops entering the carburetor in the right amount, in this regard, due to the too enriched fuel mixture, the engine operation is disturbed. The contaminated filter is neatly removed, cleaned and washed in water, then dried and installed in place.

Another reason is the incorrect regulation of the carburetor. Adjustment is carried out by three screws.

Timely replacement of the fuel filter guarantees a full fuel supply

The fuel hose and the drive of the air damper should fit tightly to the fittings

The cable of the lever of the throttle drive should be in its place

During operation, you need to use the instructions, otherwise you can only make it worse.

Sapun check

Specifically, the sapun plays a severe role in the establishment of a chainsaw, finding such a part is an option near the gas tank cover, and more precisely in the area of ​​the air hole. The sapun makes an ordinary role, however, it does not allow the fuel to flow out and sets the correct air pressure. Thanks to this air, the fuel enters the carburetor, and the malfunction of this element is a frequent prerequisite when the fuel does not enter the chainsaw. The impaired the work of the soundtress will serve the formation of negative pressure, from which gasoline will not be able to enter the carburetor when trying to start a tool.

Checking the operability of the cabin is quite easy, turn off the gasoline of the carburetor tube and check how the fuel flows. If gasoline

a small stream flows, our client remains in order, if it does not flow at all. the sapun is scored faster than a dirty. With the right execution of course, clean the part, from time to time it is easier to change for the latest. The cleaning procedure is performed either manually, or by supplying a strong air jet of high pressure.

Fuel system malfunctions STIHL 180

In some cases, as a rule, if there is a spark on the spark plug, when examining it, you can notice that it has a wet plaque, this indicates an excessive supply of fuel to the combustion chamber and, as a result, the impossibility of ignition of the fuel mixture.

The candle floods

Among the people, a phenomenon in which the spark cannot ignite a large amount of fuel. it is customary to call the candle. The cause of the malfunction lies in the carburetor, or in the wrong launch of the cold engine. If a malfunction is detected, first you need to carry out the “purge” of the engine.

Algorie of the engine

Important: in no case do the “purge” of the engine with the ignition on and near the open fire.

  • Turn out the candle;
  • Turn the stihl chainsaw 180 with the bottom up and drain excess fuel;
  • In an inverted state, pull the chainsaw starter several times (thus, excess fuel will be removed from the cylinder under the influence of compression);
  • Install a candle and cap of a high.voltage wire in place;
  • The engine control lever is installed in the position of hot start;
  • Pull the starter several times and start the engine.

If the stihl chainsaw is all right and the launch algorithm for the cold was violated, then after “purging” it should start. Otherwise, the malfunction must be sought in the carburetor.

Fuel does not come

This type of malfunction, like the rest, has its own characteristic sign. It consists in the fact that the working candle of ignition on which there is a spark will be absolutely dry. Check suspicions of the lack of fuel supply, you can use the following algorithm.

The inspection algorithm for the lack of fuel supply

  • Unscrew the candle;
  • Using a syringe, pour 1-2 of the fuel mixture into the candle hole;
  • Install a candle and put on a cap of a high.voltage wire;
  • Set the engine control lever to the hot launch position;
  • Pull the starter several times.

If, after several movements, the Stihl 180 chainsaw starts up and immediately stalled, then suspicions of the absence of fuel supply were confirmed and you can proceed to further diagnosis of the fuel line.

Diagnosis of the fuel line

As a rule, the diagnosis of the fuel supply system begins by checking the condition of the fuel filter. To do this, unscrew the tank cover and with the help of an aluminum wire bent at the end, remove the fuel hose from the tank, with a filter at the end.

Having taken out and dismantling the filter, you can try to blow into it if the air does not go, then the problem is found. If everything is in order, then you need to check the system for the blockage.

To check the fuel supply hose, it is necessary to disconnect it in the place where it connects to the carburetor, and then blow into it. The clogged hose can be cleaned mechanically, if it is impossible to do it, replaced with a new.

In the case when the supply hose and the fuel filter are normal, and the fuel supply is not observed, the cause may be hidden in the malfunction of the air pulse to the fuel pump.

Impulse check from the engine crankcase

The fuel pump on the Stihl MS 180 chainsaw is installed directly in the carburetor and works under the influence of pulses from the Carter of the Stihl 180 chainsaw crankcase. Pulse transmission is carried out through the pulse channel in a rubber pipe connecting the cylinder to the carburetor.

Clogging of the channel is fraught with the appearance of problems with the supply of fuel or its complete absence. To check the pipe, it is necessary to remove the air filter housing and the carburetor, after which check the channel for the blockage with a thin metal wire.

All rubber parts of the Stihl 180 chainsaw should be periodically inspected on the appearance of cracks. If defects are detected, faulty elements must be replaced with new.

Another reason associated with the absence of an impulse in the pipe channel is the depressurization of the engine crankcase, which resulted in a leakage of air and a decrease or complete cessation of its supply to the fuel pump. The result of depressurization is a partial or complete loss of operation of the fuel pump. To check the tightness of the crankshaft oil seals, and in general, the Carter of the Stihl 180 chainsaw, a special vacuum device is used, and since it is a special purpose tool, is mainly only in service centers. The question arises, what to do?

Check the pulse supply, you can use a syringe on an engine with a carburetor removed. It will be necessary to dial a little oil for lubrication of the engine and squeeze it into the pulse channel of the pipe, and then pull it for the starter. If the pulse does not pass, the oil will remain in the channel and you should look for the cause deeper, disassemble the engine and check the seals. If the oil is squeezed out of the channel, then the problem can be hidden in the most fuel pump.

Fuel pump

The main element of the fuel pump is a special membrane that moves in the pump housing. With its break, the supply of fuel to the carburetor and the engine of the chainsaw of the Stihl 180 chainsaw stops. You can verify the integrity of the membrane visually when the fuel pump lid is removed, if there are defects (tears, cracks), it can be replaced by using the repair kit for the carburetor.

If you do not start a chainsaw of Stihl 180, and after reading the material it is difficult to understand what and how to do to find and eliminate the malfunction, you should not immediately throw everything and write in the search engine: the chainsaw of Stihl 180 reasons for the video is not started. A little lower you will find a video instruction where the master of the service center talks in detail about the malfunctions that do not allow the Stihl 180 chainsaw, and also explains why the saw does not start hot.

The shuttle of the throttle

The throttle is installed in the carburetor case and is responsible for increasing the supply of fuel consistency specifically in the motor cylinder. At the time of pressing the gas, the throttle is opened, thereby increasing the throughput of the channel and fuel from the carburetor cavity, rushes into the cylinder in a larger volume.

Combustion of a larger amount of fuel, increases the amount of energy formed, which affects the power and speed of processes. The damper is installed on the shaft of the carburetor passing through the entire body. At the output of the shaft from the housing, a mount for the gas cable is installed, a cone.shaped, adjusting screw responsible for configuring the idle fast is located nearby.

Clot of pile up with your own hands carburetor fills

Details: Clot of 180 repair with his own hands, the carburetor floods from the real master for the Olenord website.com.

STIHL 180 chainsaw. device and adjustment of the carburetor

The Stihl MS 180 chainsaws are designed in such a way as to make their operation as allegedly asleep as inexperienced users as much as possible. To do this, some settings available on more powerful StiHL models were abolished in the carburetor of the saw. But there is still an opportunity to set up, and repair, as well as adjusting the Carburetor of the Stihl 180 chainsaw with your own hands, is possible.

First you should decide why it may generally need to regulate and repair the STIHL MS 180 carburetor. So, this must be done in the following cases:

  • if the chainsaw does not hold idle turn;
  • Repair may be required if the saw does not start;
  • power loss is observed;
  • increased fuel consumption;
  • chainsaw does not develop maximum speed.
  • stalls when recruiting.

This list can be continued for a long time, but we have determined the main reasons. Before starting adjustment, you need to know what main parts a carburetor on the Stihl 180 chainsaw consists of, and who produces it.

stihl, gasoline, flows, fuel

So, the STIHL MS 180 carburetor is developed and produced by the subsidiary of STIHL, called Zama. Original carburetors, on their building have a company logo guaranteeing product quality.

Directly in the carburetor case, a fuel pump is installed, which works under the influence of an air pulse from the chainsaw crankcase, transmitted through special channels. The pump has a diaphragm, it is she who is responsible for pumping fuel under the influence of a pulse. Between the diaphragm and the case, a laying is installed, which is responsible for the tightness of the fuel pump.

In the distribution chamber, as in the fuel pump, there is also a membrane that opens and regulates the fuel supply by pressing a special rocker, while lifting its needle valve.

The camera cover is the compensator case, which is mounted on the carburetor using four screws, a gasket is installed between the case and the lid, increasing the height of the camera and responsible for sealing.

The nozzle for supplying fuel is mounted in the carburetor case in such a way that it is a connecting link between the distribution chamber and the cavity in which the throttle is installed. Simultaneously with the fuel, air is supplied to the nozzle and the air mixture is formed. The nozzle has a check valve that blocks the flow of air in the reverse sequence, that is, from the throttle chamber into the distribution chamber.

The throttle is installed in the carburetor case and is responsible for increasing the supply of fuel mixture directly to the engine cylinder. At the time of pressing the gas, the throttle is opened, thereby increasing the throughput of the channel and fuel from the carburetor cavity, rushes into the cylinder in a larger volume.

Combustion of a larger fuel volume increases the amount of energy formed, which affects the power and speed of processes. The damper is installed on the shaft of the carburetor passing through the entire body. At the output of the shaft from the housing, a mount for the gas cable is installed, a cone.shaped, adjusting screw responsible for configuring the idle walk is located nearby. By twisting the screw, you can slightly adjust the position of the shaft and the shutters installed on it, thereby increase or decrease the idle stroke, opening or vice versa covering the damper.

How to repair a carburetor on the Stihl MS 180 chainsaw.

The main malfunctions of the carburetor of the chainsaw STIHL 180.

The carburetor air damper is installed on the opposite side of the throttle and is responsible for the launch of the cold engine, its control is carried out by the engine control lever. For cold launch, the air damper is completely blocked, for normal operation, open.

STIHL 180 chainsaw carburetor, indiscriminately, can only be adjusted for the number of revolutions at idle. Increase or reduce fuel supply in various modes using special screws cannot. The manufacturer limits access to adjustments and does not set these screws. How to adjust the carburetor to the correct idle speed is described in great detail in the manufacturer’s instructions.

The chainsaw begins to stall or change the speed when tilted to side. In vertical. everything is fine, when turning. the turns fall (or grow) and it stalls

Associated with the design features of its fuel system, filling the cameras. In addition, it is necessary to check the gas pump. sometimes the problem may be in it.

First of all, it is necessary to understand that the carburetor of any engine is a node into which the flows of air and gasoline converge. Therefore, for its normal work, these flows should come in a good, not clogged form. In addition, combustion products in the engine should freely leave the camera through the silencer. Therefore, each time, before repairing and setting up the carburetor, we must check:

stihl, gasoline, flows, fuel
  • Air filter at the inlet;
  • Remove and clean the silencer;
  • We check the absence of problems with the fuel system. the supply hoses, the serviceability of the gas tank (the work of the saopo compensation of low pressure, see above);

In principle, it is not even so vital to twist idle speed. Waste elements will already give normal characteristics of the work.

The best removal process is shown on the video attached below. The main minimum steps are also demonstrated there in order to bring the knot to working condition. This process is schematically looks like this: remove the lid, traction, unscrew the unit.

A significant part of the problems with the knot is associated with the stupefied or faulty membranes of the carburetor. The easiest way is to replace them if it was not done for a long time. In shops or aliexpress workshops, entire reprimatoes are sold, containing all the necessary membranes. Sometimes for the amount of about 600 you can buy spare parts for the entire service life of the chainsaw (see. rice.).

over, specifically in this case, the kit also includes a rocker with a needle, which are also susceptible to wear and in some cases require replacement. In a word, for the price of a new node you can repair an old almost unlimited number of times. If we assume that five is actually a lifelong set.

In some cases, the following method gives excellent results. we take out the carburetor, remove all the membranes (from below), and then what remains, we leave to soak into acetone for several hours. Often, extraneous objects and substances simply get into the nozzles and channels (sometimes traces of sealants are found there, for example, traces of sealants!). Therefore, a simple cleaning gives an excellent effect. Without expenses and substitutions of membranes. Although the decision to replace them must be made in place, guided by their condition.

No matter how surprising it seems, but quite. This node has almost the only requirement. the accuracy of its manufacture. In terms of geometry, as a rule, everything is in order with it. It does not carry any excess mechanical or chemical loads. Therefore, a simple replacement may well be an appropriate option for a long time to extend the life of a chainsaw, worth quite decent money.

Despite many varieties of modern building materials, wood remains most in demand. In this regard, among forest rollers, owners of their own houses and summer residents, chainsaws are in great demand.

Among the enormous variability of the model range of the most in demand for both amateurs and experienced foresters for many years, the chainsaw of the Stihl 180 chainsaw remains, which has been characterized by simple maintenance, repair and operation. STIHL was founded more than 9 centuries ago and began the production of gasoline chain saws back in 1926. Thanks to many innovations, unpretentiousness and durability, the tools of this manufacturer are in demand in the global market of woodworking equipment.

Before starting work on the diagnosis of malfunctions and their elimination, it is necessary to prepare the necessary tools.

General view of the Stihl MS 180 chainsaw with the main nodes

Due to the fact that the chainsaw is a relatively simple unit, the list of accessories includes the following positions:

  • a set of flat and cross screws;
  • ryge locksmiths;
  • candle key;
  • A set of end heads with a gap
  • Multifunctional STIHL tool.

In order to high.quality elimination of emerging breakdowns and restoration of operational indicators, it is necessary to establish the previous failure of the unit for the preceding failure. Following the fact that the chainsaw is equipped with an internal combustion engine (ICE), the main causes of breakdowns are first of all to look for in the power knot.

Before starting work, it is necessary to drown out the engine, let it cool and exclude the possible launch of the chainsaw. To protect the fingers, it is recommended to put on m/a gloves.

The most common in the repair of the chainsaw of the Stihl 180 faults include:

  • the engine is not launched;
  • The work of the motor with interruptions, with short work, the chainsaws stamped spontaneously;
  • oil leaks near the mechanism of the lubrication of the chain;
  • The engine does not develop full power.

The frequent breakdowns of the transmission part of the saw include the rupture of the links of the chain. You can independently restore its integrity by crypt of links or replacing with a new.

Despite the relative simplicity of the design and the lack of complex mechanisms, experts recommend searching for a fault in a certain order. First of all, the presence of the mixture in the fuel tank is checked, and if everything is in order with the fluid level, it is necessary to proceed to the inspection of the tuning unit node. If this mechanism is in normal condition, you need to check the efficiency of the spark plug.

After the manipulations for the diagnosis of a candle (determination of the presence or absence of a soil, the correctness of the gap between the electrodes, the condition of the sealing ring) we translate our attention to the carburetor. Due to small sawdust, dust and particles of soil, the fuel system is often blockage.