Shoots at the carburetor: the main causes of the malfunction, what to do, problem solving, repair

General manifestation of the malfunction

Popping noises in the carburetor may appear under the following circumstances:

• after engine repair;
• there was an accident or a pothole on the road;
• tuning or simply adjustment of the carburetor was carried out;
• the car has high mileage.

In this case, a malfunction may occur in the following cases:

• when you press hard on the gas pedal;
• after parking, with a cold engine;
• on the go under load;
• when trying to start the engine.

Depending on the reason that caused the carburetor to shoot, popping noises can appear either abruptly or gradually, increasing in intensity daily. Operating a car when the engine sneezes into the carburetor, in addition to discomfort for the driver, can lead to the need for major engine repairs.

Concurrent symptoms

As a rule, the situation is accompanied by a number of other signs:

• unstable operation of the internal combustion engine in idle mode;
• difficulty starting;
• loss of power and throttle response of the power unit;
• rapid overheating of the motor;
• increase in fuel consumption.

Note also that in such a situation the car accelerates poorly. When you press the accelerator pedal, jerks, dips, and delays appear. The car jerks a lot, especially in transition modes. The power plant does not so much work as “sneeze.”

High voltage wires

When carrying out repairs affecting the ignition system, the high-voltage wires may be connected incorrectly. In this case, the spark will not occur in time with the compression cycle, resulting in popping sounds. Even if the engine starts, its power is not enough to move the car.

To diagnose a malfunction, you should check the connection of the wires from the spark plugs to the distributor. You should push off from the mark located on the cover. The connection of high-voltage wires must correspond to the car model. For example, the location of high-voltage wires in the VAZ 2109 is shown below.

Correct connection of high-voltage wires VAZ 2109

Diagnostics

You can diagnose the condition of the engine and the operation of the fuel system using spark plugs. If the center electrode of the spark plug is white, this indicates that the engine is running on a lean mixture. If the carbon deposits are black and dry, then this indicates a rich mixture.

To eliminate this problem, it is recommended to adjust the carburetor. It is better to use a gas analyzer, since settings that rely on human senses do not always give the desired result. In addition, you need to choose a gas station before buying fuel - sometimes black deposits can form due to the quality of gasoline.

Mixture composition

If the engine is supplied with a too lean or rich mixture, then shooting is also possible. This situation may arise if the carburetor has been adjusted. Incorrect installation of the quality screw leads to incorrect preparation of the air-fuel mixture.

When operating on a lean mixture, the mixture burns slowly. When the intake valve opens, fuel continues to burn out. It ignites a new combustible mixture. Combustion occurs in the intake manifold and the engine shoots into the carburetor. At the same time, an increase in engine temperature is observed.

When working with an enriched mixture, black carbon deposits form on the electrodes. If there is enough plaque and a high temperature, it can ignite the air-fuel mixture at the wrong time. This causes the carburetor to pop as the intake valve is open at this time. This malfunction only appears when the engine is warm. Gradually the engine sneezes more and more often. A significant drop in power in this case is extremely rare.

For diagnosis, you should inspect the spark plugs. The presence of a white color indicates operation on a lean mixture. Black plaque, on the contrary, indicates over-enrichment.

To eliminate the malfunction, the carburetor should be inspected. If adjustment does not help, then flushing is required. You should also be careful about the fuel purchased at gas stations.

Lean fuel assembly

Operating a carburetor on a lean fuel assembly often becomes a source of popping noise a priori. This is due to the combustion process itself, which in this case occurs slowly. Symptoms of this type of malfunction are similar to ignition failures. The poor fuel assembly burns after a new intake stroke begins.

Lean fuel mixture

A lean fuel assembly is almost the main reason for overheating of the power plant. The pop is created first in the intake, and only then the sound is transmitted to the mixing chamber of the carb.

The root causes of the formation of a lean fuel assembly must be sought in the carburetor itself, fuel lines, filters or in the fuel pump. As a rule, this is due to air penetration into the system or clogging of the jets, which are the main components - dispensers.

It is also important to be able to check at what level the fuel is in the float chamber. Often something similar happens due to the curvature of the float.

At the same time, it would be a good idea to test the accelerator pump. This part of the carburetor can also play a role when shots appear. This is especially true if it shoots when you press the gas pedal.

Carburetor accelerator pump

If the problem is related to the carburetor and its components, then sometimes it is enough to treat the inside of the device with an aerosol spray to clean the metering devices. After that, all that remains is to properly adjust everything. It would also be a good idea to replace the fuel filters.

Late and early ignition

With late ignition, combustion of the air-fuel mixture occurs throughout the entire power stroke. When the intake valve opens, the burning old mixture ignites fresh fuel. The engine overheats significantly during such operation. Popping noises can be observed not only in the carburetor, but also in the muffler.

For diagnostics, it is recommended to check the set ignition timing and, if necessary, adjust it. Whitened spark plug electrodes serve as indirect evidence of late ignition.

If the spark appears too early, the fuel will not ignite in a timely manner. In this case, the intake valve does not have time to close, and the combustible mixture inside the intake manifold ignites.

Particular attention should be paid to the OZ if work was carried out to repair the ignition system. It is required to produce the moment of sparking. The ignition timing is adjusted by turning the distributor relative to the scale.

Inspection of the ignition timing

Featured Posts

Hurik

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• Car make: VAZ21063
• From:Donetsk

Hello. I have a VAZ21063 with a contact ignition Solex carburetor, the car started shooting at the carburetor when the 2-chamber was opened. I myself understand the ignition and the carburetor. I washed, blew out the carburetor, rebuilt the trampler, adjusted the valves, set the ignition, checked the compression to 10 in all, changed the spark plugs and wires, none of the above helped. Help who can.

Susanin33

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• Car make: VAZ – 21093
• From: Russia, Vladimir

Help who can.

lean mixture, early ignition, insufficient closing of the intake valve

Protva

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• Car make:Chevrolet Lanos SX
• From: south Mos. region

I'll add a blown gasket between the manifold and the head.

zhigalo

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• Car make: VAZ 2107
• From:Kostanay

Did you set the distributor according to the marks?

Hurik

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• Car make: VAZ21063
• From:Donetsk

lean mixture, early ignition, insufficient closing of the intake valve

I changed the 2-carb plus adjusted it, set the ignition earlier and later, checked the valves twice, measured the compression at 10 in all. Nothing has changed.

Hurik

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• Car make: VAZ21063
• From:Donetsk

I'll add a blown gasket between the manifold and the head.

the engine runs fine at XX, the tasol does not go away, the spark plugs c1-4 are red, the engine does not run louder. The car began to shoot at the carburetor when opening the 2nd chamber. What is the problem with the gasket between the manifold and the head????

Hurik

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• From:Donetsk

Did you set the distributor according to the marks?

Yes, according to the marks.

Susanin33

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• From: Russia, Vladimir

Yes, according to the marks.

vacuum advancer

Hurik

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• From:Donetsk

vacuum advancer

The vacuum corrector was checked to be normal, I even tried turning it off, no change.

Protva

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• Car make:Chevrolet Lanos SX
• From: south Mos. region

spark plugs s1-4 red

It is better to replace spark plugs with red insulator. Over time, they begin to break through to ground.

Sorrel

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• From:Russia

I’ll get into the conversation, try to pull out the choke a little, and you’ll go for a ride. It’s quite possible that he’ll stop shooting, if he stops I’ll tell you what’s going on next))) If he continues to shoot, I won’t be able to do anything to help. And even if the car is warmed up, still open the choke a little while driving.

Hurik

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• Car make: VAZ21063
• From:Donetsk

I’ll get into the conversation, try to pull out the choke a little, and you’ll go for a ride. It’s quite possible that he’ll stop shooting, if he stops I’ll tell you what’s going on next))) If he continues to shoot, I won’t be able to do anything to help. And even if the car is warmed up, still open the choke a little while driving.

The choke really helps and the engine stops firing! what’s the matter??? share your guesses, is it really possible that the carb is fucking brains....?

Protva

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• Car make:Chevrolet Lanos SX
• From: south Mos. region

It's also interesting to know what the reason is. I can only assume that somewhere... I won’t guess. Waiting for Sorrel

.

Hurik

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• Car make: VAZ21063
• From:Donetsk

It is better to replace spark plugs with red insulator. Over time, they begin to break through to ground.

The spark plugs have nothing to do with it, I changed the same canoe.

Sorrel

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• Car make: VAZ 21093
• From:Russia

Do you have a temperature regulator? Today I personally encountered popping noises (in Moscow today it was -12), all this was due to the supply of Cold air, (I didn’t have a thermostat on the 9th) I installed it, the popping noises disappeared. So the problem with popping noises is that Pts gets into the carburetor. cold air. check the thermostat, maybe it hasn’t been working for a long time...

VAZochnik

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• Car make:VAZ 21061,VAZ 21074,VAZ 21124,
• From: Mordovia

If five carburetors have already been changed and there are no changes, then the problem is not with them (c).

In my opinion, you need to completely change the SZ distributor + coil. Take known good ones and see what changes. Start by replacing the coil; if that doesn’t help, change the distributor assembly.

I had a similar problem - that in the end it hurt - no one could explain. Some shouted that the capacitor on the distributor was broken, others that its bearing was jammed... It ended with the transition to BSZ. The troubles are over.

Motorist

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• Car make: VAZ 21074, Java 638.
• From: g. Pavlovo

In the winter, with the air cap turned off, my air pump would stall for the winter. You drive and drive, and suddenly the engine stalls. You wait for 10 minutes and you can go again. I turned the lid to winter time and that was it. And SZ has nothing to do with it. This is the same as trying to eliminate rear axle noise by changing the pump bearing.

n1ger

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• Car make:VAZik 21043
• From: Saldyukino

Idk... I drove around all winter with the switch turned off =)

and now the pan has been sawn apart =) it doesn’t seem to stall or fire...

although... there is... it happens... the scolex began to shoot (rarely, really, very rarely). I didn't notice this with ozone.

Hurik

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• Car make: VAZ21063
• From:Donetsk

Idk... I've been driving around all winter with the switch not turned =)
but now the pan has been sawn apart =) it doesn't seem to stall or fire...

although... there is... it happens... the scolex began to shoot (rarely, really, very rarely). I didn't notice this with ozone.

What kind of Solex, and what kind of jets are they?

n1ger

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• Car make:VAZik 21043
• From: Saldyukino

Solex 83-51... rebuilt =D

top from 83 regular, bottom from 83-51. I bored out the diffusers to 2324. I don't remember the jets.

seems like this:

TZh1 107.5 VZh1 150

TZh2 115 VZh2 165

(I can’t find a standard repair kit for 21053-20 =((( )

I installed the current accelerator nose from the Niva and that’s it.

Hurik

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• Car make: VAZ21063
• From:Donetsk

Guys, does anyone have a Solex08 without modifications on the 11th engine, and with what jets? Otherwise I’m stuck... surf the forums, one has some tariffs for jets, another has different ones, huh.. you’ll understand which ones are needed. I have

GTZH 1.K-97.5 GTZH 2.K-97.5 GVZH 1.K165 GVZH 2.K125

Hurik

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• From:Donetsk

AU...... Is it really possible that 518 people who read the topic cannot answer the last question asked!!!!!!!!!!!

Radio technician

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• From:Ekaterinburg

What does carb have to do with it? The chain is ground off faster and the phases are delayed. This includes closing the intake valve during early ignition. They put it on early because the engine doesn't work (?).

Hurik

• Newbie
• Users
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• 19 publications
• Car make: VAZ21063
• From:Donetsk

What does carb have to do with it? The chain is ground off faster and the phases are delayed. This includes closing the intake valve during early ignition. They put it on early because the engine doesn't work (?).

My friend, you didn’t understand me, the problem with shooting into the carb was solved by increasing the valve clearance. Now the problem is the following, I recently installed a Solex 08 since my native ozone has worn out in 21 years, the jets on the Solex are as follows

GTZh 1.K-97.5 GTZh 2.K-97.5 GVZh 1.K165 GVZh 2.K125, at xx the engine is like a clock, on the 1st chamber it runs great, but on the 2nd chamber the car becomes stupid, jerks and there is no acceleration. Carb soap was blowing through the effect 0. What's the matter? Maybe the level in the PC or the jets is not what it should be?

ivan65

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• Car make: VAZ 2107
• From: Rostov

It is necessary to adjust the fuel pump pusher (either it sticks out a little or is worn out, if it is worn out, replace it with a new one) and this will most likely help. As a rule, the malfunction is on the surface - you just need to think about it.

Malfunction of the ignition distributor

A faulty distributor can cause improper ignition of the mixture in the combustion chamber. Its main faults include:

• breakdown of the lid;
• slider failure;
• oxidation at the attachment point of high-voltage wires, causing energy loss.

To identify the distributor as the culprit of the popping noise, it is recommended to install a known-good device in its place. If the shooting disappears, further diagnosis of the ignition distributor malfunction will be required.

Distributor

Incorrect thermal clearance

The thermal gap is the distance by which individual parts of the engine increase in volume when heated. In particular, it is between the valve tappets and the camshaft cams. An incorrectly set thermal gap is one of the possible reasons why the muffler shoots.

Indirect evidence of an increase in the thermal gap may be increased noise during engine operation, as well as a decrease in its power. If the gap is reduced, this may cause gases to shoot into the exhaust pipe. This occurs due to the fact that a valve that is not completely closed allows gasoline to enter the manifold, from where it then enters the exhaust system.

The thermal clearance of the cylinder head valves can be adjusted. Therefore, to eliminate this problem, it is enough to adjust the valves. This procedure is always carried out on a cold engine.

Switch failure

Typically, a breakdown of the switch makes it impossible to start the engine, so popping noises will be observed when trying to start. To diagnose, just install a new device. If the motor stops firing, then the switch needs to be replaced or repaired. What to do depends on the type of breakdown and the capabilities of the car owner.

Very often this malfunction can be detected at an early stage. The engine speed begins to fluctuate, and when you sharply press the gas pedal, the car accelerates with dips in traction. Small popping noises are heard from the engine compartment.

Popping sounds in the carburetor on the 402 engine

The 402 model engine was serially installed on Gazelle cars until 1985, then the Gorky Automobile Plant switched to equipping cars with 406 engines. Now thousands of Gazelles, Volga GAZ-3110 are operated by ZMZ-402. Like any gasoline engine, popping in the carburetor on the 402 engine is a frequent occurrence.

There are a lot of malfunctions that cause lumbago and popping noises. The most widespread of them:

• obstruction of fine gasoline filters and fuel pumps;
• diaphragm rupture, violation of tight fit of fuel pump valves;
• ice plugs in fuel pipes or sump;
• Gasoline supply hoses are clogged with debris;
• the carburetor air damper does not close tightly;
• The passage holes of the idle jet and the main fuel jet are coked with resins and deposits.

Disturbances in the operation of the gas distribution mechanism

Starting the engine will be accompanied by shots into the carburetor if the timing phases are out of whack, that is, the drive has jumped several teeth. In this case, if the shift is 1-2 teeth, the engine will be able to operate, but there will be a loss of power. But with a significant timing shift, the valves can be damaged. In this case, you cannot do without engine repair.

Reasons that cause shift of the gas distribution mechanism drive:

• when performing repair work on the engine, the phases are inattentively set;
• belt replacement;
• low tension, sufficient to cause slippage;
• the car gets into an accident or a pothole;
• Excessive wear of timing elements.

Installation marks for checking the correct timing of timing

To diagnose the malfunction, it is necessary to check the timing marks on the crankshaft pulley and the housing. Troubleshooting depends on the effects of phase shift. In some cases, it is enough to correct the operation of the timing belt, but if the pistons hit the valves, it is impossible to do without repairing the engine.

If you notice a timing shift, you should not try to start the engine, much less apply gas, checking the possibility of travel. Starting the internal combustion engine is possible only after the timing marks have been correctly placed and the cause that caused the shift has been eliminated. Otherwise, the motor may be significantly damaged.

Why does the engine shoot into the carburetor: resulting in popping noises

A fairly common problem with carburetor cars is the characteristic popping noise in the carburetor. The malfunction may occur when the engine starts and fires into the carburetor, as well as during operation of the internal combustion engine after the power unit has been started. At the very beginning, we note that experts consider the main reasons to be a severe depletion of the fuel-air mixture, ignition timing, or malfunctions of the gas distribution mechanism associated with incorrectly set phases.

As for the CIS, most carburetor cars on the roads are Russian-made models. Next, we will look at problems when a VAZ engine shoots into the carburetor, why a 406 engine shoots into the carburetor, and also talk about how to detect and fix such malfunctions with your own hands.

Inlet valve

A bent or burnt valve is unable to seal the combustion chamber from the carburetor. Loose pressure of the plate to the seat allows gases to break into the intake manifold. In some cases, the fresh air-fuel mixture ignites.

To diagnose the problem, you need to check the compression. If a cylinder is detected with a suspected combustion chamber leak, it is necessary to fill it with engine oil. This will prevent excessive wear of the cylinder-piston group or sticking of the piston rings. A cylinder with a damaged valve shows the same compression both with and without oil.

To eliminate the malfunction, it is necessary to dismantle the cylinder head and replace the valve. If the valve is bent, it is recommended to check the correct timing of the timing belt. Burnout of the valve with low mileage also requires searching for the cause of this breakdown.

If you have hydraulic boosters, you should also check their operation. Sticking of the hydraulic compensator leads to the same consequences as burnout of the valve. In this case, shooting into the carburetor may not be observed all the time, but during certain periods, for example, when the engine is cold or hot. Very often, car owners complain that they shoot when I start the engine.

Common reasons why shots and pops occur in the exhaust (carburetor)

1. The search for causes should begin with checking the tightness of the exhaust system. A rusted muffler or resonator can cause air to leak, and you will eventually hear something similar to popping noises.
2. The second reason may be an increased fuel level in the float chamber of the carb.
3. The carburetor float chamber needle valve may be faulty.
4. Often the reason lies in a broken float seal or, more simply, in a broken float.
5. The channel or air jet of the idle system is clogged.
6. Malfunctions in the operation of the economizer can cause shots and pops from the exhaust.
7. Irregularities at work.

Device

• frame
• air and throttle valve
• fuel valve mechanism
• diaphragm
• lid
• main dosing system
• idle system.

The main dosing system includes:

• diffuser B, made in the form of a narrowing body,
• plate valve
• spray jet.

Idle system:

• fuel jet D idle
• channels B and D idle
• outlets A
• air jet
• mixture adjustment screw
• lever and stop screw on the throttle axis.

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Gazelle

Model ZMZ 40524.10 is a gazelle carburetor known to everyone. The car brand “Gazelle” is one of the most popular and affordable trucks in Russia, which were originally intended for transporting not very large loads. Due to the huge number of such machines, we will consider several nuances of different gazelle systems. For example, a microprocessor ignition system, which is installed on the 406 model.

If the driver claims that his car makes some popping noises, jerking noises and loses its power. In this case, the power system, engine and ignition system should be checked. We checked the carburetor with a gas analyzer not during the operation of the 1st and 2nd chambers, cutoff, enrichment and during idling and did not find any violations. Next they check the engine. When checking the compression, no problems were identified, but the next time deviations from the norm were detected. It was concluded that the jerks and pops that the driver did not like were due to the jumping of the teeth of the upper chain.

Carburetor ZMZ 406 series

What to do if a gazelle loses power?

From the very beginning, you need to check how the diagnostic circuit and the on-board diagnostic system function, because when the travel image mode is activated, a malfunction code of 12 should be obtained. To read the code, the 10th and 12th contacts of the diagnostic block must be closed. Using a diagnostic toaster, engine sensor parameters are measured and then compared with typical values ​​for average engines. The most common reason for a decrease in car power is contamination of the tube that connects the intake manifold and the pressure sensor.

Gazelle ignition system

The microprocessor ignition system ignites the working fluid in the cylinders and sets the required vehicle ignition timing for all engine modes. The ignition system performs the function of regulating the operation of the forced idle economizer. Thanks to the ignition system, engine operation becomes more economical, compliance with all exhaust gas toxicity standards is monitored, detonation is eliminated and the vehicle's power is increased. If we compare the classic system with this one, then this ignition system is much more reliable and durable. Here only the spark plugs can wear out.

How does diagnostic mode work?

When the ignition system is turned on, the indicator light begins to light. At that very moment, the diagnostic system begins to work. If the system is working properly, the light stops lighting, but otherwise it continues to light. That is, an extinguished warning light indicates that the ignition system is absolutely working.

Carburetor ZMZ 406 series

Why does the 406 engine sometimes not start during a freeze?

The most common reasons why the 406 engine does not start:

• Poor quality oil;
• The battery is not powerful enough, which prevents the engine from starting;
• Faulty starter;
• Misregulated ignition system;
• Poor quality gasoline;
• Failure to supply gasoline.

How to adjust the carburetor?

• Disconnect the choke actuator cord;
• Remove the air filter and carburetor cap;
• Check the level of the float chamber, it should be below 3 centimeters from the edges;
• Remove the plug from the float rod;
• Make sure the valve seal ring is tight;
• Install the carburetor top;
• Install the choke cable and air filter;
• Screw in the idle speed adjustment screw all the way, unscrewing it five turns. Carry out the same actions with the quality screw, but unscrew it three turns;
• Start the power unit;
• Let it heat up to 90⁰;
• By rotating the operational adjustment screw, select the crankshaft speed, about 700 rpm;
• Press the accelerator pedal and release quickly. If the engine stalls, increase the frequency;
• Stop by a car dealership and adjust the CO and CH of the engine.

The appearance of popping noises in the carburetor is usually accompanied by unstable engine operation, floating idle speed, increased fuel consumption and the car losing its previous dynamic characteristics. In some cases, the engine does not start at all, or stalls immediately after starting, not responding to pressing the gas pedal.

Fuel system

If the fuel mixture does not enter the cylinder, but the spark plug works normally, this may mean that:

1. The fuel filter is clogged.

To clean this unit, remove the fuel hose and check the flow. If it is weak, the filter must be removed through the filler hole of the fuel tank and cleaned or replaced if completely worn out.

1. The breather is clogged.

We invite you to familiarize yourself with Apple tree yellow sugar description photo reviews

This is nothing more than a hole in the fuel tank cap, which is cleaned with an awl.

1. The fuel mixture is not supplied or is supplied in insufficient quantities.

There may be several reasons for this:

• the air filter is clogged (in this case, it must be removed, washed with water, dried and replaced);
• the carburetor settings have gone wrong (which means this unit needs to be adjusted again);
• the integrity of the carburetor membrane is damaged (must be replaced);
• the carburetor channels are clogged (it must be disassembled and all parts and components cleaned).

If the chainsaw engine does not start or cannot develop normal power, it is likely that there is not enough pressure in the engine cylinder to burn the fuel mixture. The reason for this may be wear of the elements of the cylinder-piston group - piston, rings, bearings, etc. In order to assess the condition of this unit, it should be visually inspected after first removing the muffler.

For a more complete diagnosis, a compression gauge is placed in the spark plug hole of a two-stroke chainsaw engine. It is used to measure compression in the engine. Based on the test results, one can judge the condition of the CPG, but accurate facts can only be obtained by completely disassembling the unit.

Most of the malfunctions of gasoline chain saws can be fixed with your own hands. True, this requires an understanding of the structure of the chainsaw and how the components function among themselves. As for the tools, the most often needed are:

• screwdrivers (slotted and power);
• combination wrench included in the kit or regular wrenches with heads of various sizes.

Malfunctions of the fuel system are also quite often the main reason that prevents a chainsaw from working as efficiently as possible. First of all, you need to check the quality of the fuel mixture.

If full-fledged gasoline streams appear, then there is a high probability that you will have to change the burst hose connecting the carburetor and the fuel tank.

There are several reasons why the fuel mixture stopped flowing into the cylinder:

• The air filter is clogged.
• The carburetor settings have been lost.
• The carburetor membrane is no longer intact.
• The channels through which gasoline is transported are clogged.

It's no secret that expensive imported chainsaws are very sensitive to low-quality fuel. At the same time, tool owners are the last ones to blame local diesel fuel, considering regular jamming of the saw as a sign of failure of mechanical parts.

Many manufacturers even block users' access to the carburetor so that they do not change the composition of the air-fuel mixture themselves. For this purpose, the jets (holes for supplying the mixture) are made unadjustable.

Fill your chainsaw with fuel recommended by the manufacturer.

Therefore, always prepare a fuel mixture of high-quality gasoline and oil of the brands recommended by the manufacturer. There is no need to prepare the fuel mixture for future use - its quantity should be enough for a couple of weeks of work. Gasoline “stayed” in a canister for a month loses its octane characteristics and the saw is guaranteed to jam.

In the picture we see:

• cylinder,
• piston,
• piston pin,
• compression ring,
• retaining rings.

The engine cylinder serves to burn the fuel-air mixture. When the exhaust gases burn, they push the piston, and it directly transmits force to the engine crankshaft.

The compression ring provides sufficient pressure in the combustion chamber for engine operation.

The piston pin holds the piston, and the retaining rings secure it.

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Hi all. Guys! Such a problem. At t 150 I stopped lifting the hitch. Only at revs. Before this, during the night at my partner’s, the hitch cylinder failed (the cuff on the piston was torn). They sorted it out and collected it, but it barely lifts it. If you hold the lever up and slow down, it starts to go down. You put the hitch in neutral and it holds. That is, the cylinder was assembled normally. We disassembled the valve and cleaned everything clearly. What could it be? Before repairing the cylinder, I raised it at low speeds. Have a nice day admin!

Why do D240 pistons have two oil scraper rings? New modification.

Good day everyone! Please tell me why there are two oil scraper rings on the D240 pistons? New modification.

Why, when you put the new MTZ 82.1 in neutral, release the clutch, vibration starts, press the clutch back and it stops?

Good afternoon. Guys. Tell me, please. On the new MTZ 82.1 you put it in neutral, release the clutch, the vibration starts, press the clutch back and it stops. Why is this so?

Why doesn't the stove heat up on the MTZ 80? Stove with Yumz. There is a tap on the tube between PD-10 and the thermostat. Hot antifreeze does not flow into the stove.

Hello, can you tell me why the stove on the MTZ 80 does not heat up? This is the second year I have been suffering from... her, stove with yumz. I put a tap on the tube between the PD-10 and the thermostat, I close the PD-10 tap, the tractor starts to heat up, but no hot antifreeze goes into the stove. You open it and the tractor cools down. The hoses to the stove are icy, and between the pd-10 and the thermostat there is a fire tube. In order for the antifreeze to enter the heater radiator, you need to open the radiator cap. Thank you in advance.

On the distributor, the housing burst at 82, so they installed a new one. Why is not a single lever in the floating position?

Guys, another question. Here on my distributor, on the 82nd, the housing burst, they installed a fresh one, but it does not have one lever in the floating position. Has anyone encountered this problem? Please tell me

They installed a new NSh on the old Czech steering wheel. Why doesn’t the rod move? There is some kind of valve circled in the photo, what could it be responsible for?

Good afternoon Have you ever repaired an old Czech steering wheel? The NS is new, but the stem does not move (Some kind of valve is circled in the photo, what could it be responsible for? Any information or diagram would be welcome)

Why doesn't the tractor start and fires after I installed a new starter and magneto? I turned the ignition on.

guys, help me, I bought a new starter and installed a magneto, it started to start, it won’t start, then it started shooting at all, it starts firing in the return line. I set the ignition as always (the top point of the piston, the gear at 11 o’clock) the spark is good. who can tell me what? Maybe someone came across it.

I installed a dispenser on the MTZ-80. Why do the wheels turn on their own when turning and the steering is heavy?

Guys, please tell me. , I installed a dispenser on the MTZ-80; when turning, the wheels turn themselves and the steering is heavy.

Why did MTZ-82.1 start throwing oil from the muffler? We changed pistons, liners, rings 2 times, 2 different cylinder heads, . The oil level drops.

Good day everyone! Help is needed! MTZ-82.1 started leaking oil from the muffler, but we can’t fix it. We changed pistons, liners, and rings 2 times, 2 different cylinder heads, and looked at the injectors. The oil level drops. The air system is clean. 30-50 hours after repair and oil begins to drain from the exhaust manifold again. Oil pressure 3. Tell me. Piston fire both times

Why is smoke coming from one cylinder? Engine D-21. It works intermittently, sometimes it’s normal, sometimes the bluish smoke is overwhelming.

Tell me, please, smoke is coming out from one cylinder. I took off the heads, ground them to the cylinders, the valves were also ground in, the guides are not broken, the rings on the pistons are still normal, the wear in the liners is faintly felt, the gaps in the valves are 0.30mm as expected. what else could it be? Injectors? I tried changing the atomizer, but it didn't work, I swapped it around, no change. Bluish smoke. Oil 10w40. It works intermittently, sometimes it’s normal, sometimes it blurts out smoke, it even shuts down, you can’t hear it on camera Engine D21

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