Shoots at the carburetor of a UAZ 469

Design features of the carburetor

Before you begin setting up or adjusting a spare part, you should study the operating principle of the carburetors installed on ZIL 130 and 131. So, this is a two-chamber device with a falling flow of air mixture and double sawing of fuel. There are two carburetor chambers made in one block and operate in all engine modes in parallel.

The carburetor in ZIL 130 and 131, by the way, is designed in such a way that its adjustment is not a problem for the driver. If the device gets a little rough, you can set it up to work without having to remove and disassemble the device. However, before you begin tuning the carburetor, it is necessary to study its design even superficially. In particular, the screws with which the actual adjustment is made:

Idle mixture quality adjustment screw.
Throttle stop screw.
Speed adjustment screw.
Throttle locking screw.
Jet holder.

Carburetor K 88
The carburetor itself is an order of magnitude more complex. However, this knowledge is sufficient for initial setup. Deeper ones are needed more for repairing the device, however, we will entrust this matter to qualified auto mechanics. If you have minimal plumbing skills, adjusting the idle speed as a solution to most problems with ZIL 130 and 131 carburetors will not be a problem for you.

Shoots into the muffler when releasing gas

Another situation is when popping noises appear when the gas pedal is released. How does the malfunction manifest itself?

At idle speed and when the gas pedal is pressed, the engine runs normally, but just release the pedal, and explosions are heard in the muffler area.

Why does the ZIL 130 shoot into the carburetor?

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.

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Why does the ZIL 130 muffler shoot, do-it-yourself video tutorials

News on request why the ZIL 130 muffler is shooting - go ahead, we are waiting for you. Let's look at ways to repair a car with your own hands, and also tell you about the causes of problems and fix them. How to repair a car yourself at home. We will help you with repairs and repair the car yourself. We know how to restore a car with minimal investment. I have attached video instructions.

Category: Auto repair instructions

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Criticism of the car owner: Endurance Cost (bought for 650 thousand and a week later it cost 800) Road stability Futuristic

Video: why the ZIL 130 muffler shoots

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Why does Zil 130 shoot at the muffler?

shoot into the muffler on cars with both carburetor and injection engines. At the same time, oddly enough, the muffler itself has nothing to do with it. It is only a source of sound, and the factors causing loud sounds lie in completely different parts of the car. Most often, the causes of popping sounds in the muffler are malfunctions of the ignition system, fuel supply or gas distribution system. Next, we’ll figure out how to get rid of the problem when it shoots into the exhaust pipe , and what you need to pay attention to first of all during “explosions.”

Can a popping sound in the muffler damage the engine?

Sharp sounds from the exhaust system are a consequence of inaccurate adjustment of the internal combustion engine or a failure of its settings. The following systems need to be checked:

gas distribution mechanism;
fuel supply system;
ignition system;
ICE sensors (in injection engines).

Popping noises do not pose any particular danger to the engine, but if you delay troubleshooting, problems cannot be avoided. A delay in restoring faulty components can lead to destruction of the valves and problems in the exhaust system. Sometimes such a breakdown even leads to a car fire.

This is interesting: Nissan Qashqai steering column cable: replacement and repair

But there are also positive aspects to the “sneezing” of the muffler - this is how the car makes it clear that there is a malfunction that needs to be fixed. Before repairs, it is necessary to carry out comprehensive diagnostics of the motor. Sometimes you need to adjust or replace some consumables.

Description

The K-88A carburetor, unlike its predecessor, is not equipped with an economizer valve with a pneumatic drive, which significantly simplifies the mechanism. The design of the device includes four main elements:

Air neck frame.
Float compartment.
Mixing chambers.
Diaphragm type actuator.

The latter mechanism serves to limit the maximum speed of the engine crankshaft. The body parts are cast from zinc alloy, and the mixing part is cast from gray cast iron.

The car shoots into the muffler and stalls

Shots into the exhaust gas system indicate that the engine has a late ignition (shots into the carburetor - early). Quite often the cause of this is the distributor. It happens that a car shoots at the muffler with an injection engine. Here, the culprit may be a faulty hall sensor (HL) or mass air flow sensor (MAF). If the distributor can be repaired, then the sensors must be replaced.

It is worth considering that diagnostics do not always reveal a breakdown of the air flow sensor and air flow sensor.

VAZ 2107 shoots into the muffler and jerks while driving

Quite often, carburetor cars or cars with contactless ignition suffer from this disease. Example: a neighbor in the garage complained that his VAZ 2107 was shooting at the muffler and the car was jerking when driving. The problem turned out to be a jamming of the centrifugal ignition timing mechanism in the distributor. Disassembled the distributor. Cleaned it up. Lubricated the centrifugal corrector. The defect has disappeared.

The car shoots the muffler on gas

Cars with gas-cylinder equipment (LPG) also did not escape the fate of getting a problem in the form of a shooting exhaust pipe. Car service experts say that this problem is far from an exception. Most often, a car shoots at the muffler on gas for 2 reasons:

Incorrect fuel supply. This is due to a faulty gearbox or a dirty filter. Sometimes the problem is caused by a broken MAF sensor.
The ignition angle is off. A very common malfunction on cars with HBO.

In cars with gas equipment, it is not recommended to troubleshoot problems yourself. To do this, you need to go to a special service.

Shooting at the muffler on the injector

Forced fuel injection vehicles are equipped with electronic engine control units (ECUs). The block collects data from all sensors and adjusts the balanced operation of the motor. If the sensor transmits incorrect information due to a malfunction, the ECU cannot adjust the correct operation of the engine. As a result, popping noises, jerking, loss of power, etc. appear. It is necessary to proceed for diagnostics.

Shoots the silencer

In addition to electronics, a failure may occur in the gas distribution system. For example, the belt jumped 2-3 teeth. Sometimes the injectors wear out and do not spray fuel, but leak it. This is especially noticeable when the engine is idling for a long time and when the gas is applied sharply.

Shooting the muffler on the carburetor

The first reason for shots into the exhaust gas system on a carburetor car is the carburetor itself. This is a complex assembly designed to create a fuel-air mixture and supply it to the cylinders through the intake manifold. Failure of adjustments affects the correctness of the fuel mixture, which is why it does not burn completely, but enters the muffler, where it detonates from heat or flames. In this case, it is recommended to disassemble the carburetor, clean the jets and adjust the fuel level float.

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.

UAZ 469 shoots into the muffler

The UAZ was driving without any problems and suddenly troubles started - it barely drives (can’t accelerate more than 60 km/h) and shoots into the air. filter and carburetor.

I looked for the problem in these places:

1. installed a new distributor 2. changed the high-voltage wires 3. changed the spark plugs 4. cleaned the carburetor 5. changed the carburetor 6. the fuel pump pumps normally through the fine filter into the carburetor. 7. I filled in different gasoline (instead of 92 I filled in 95), but... It comes from the same gas station and other cars drive it without problems.

For some reason, the insulator on one spark plug is white and the other three are black.

LEFT TO CHECK THE CLEARANCE IN THE VALVES, THEY CLICK BUT NOT MUCH and we don’t know where to dig next.

Can anyone recommend anything else?

And also, is the first cylinder counted from the radiator or from the driver (cabin)?

I know that when setting the valves on the first cylinder, there should be gaps on both, but I can’t determine this until the cover is removed, and also if I’m not confusing anything, then in one book it was written that high-voltage wires are placed on cylinders 1-2-4-3 and the first cylinder is considered from the driver (cabin) and in another book, when installing the distributor, the slider should be directed between the 1st-2nd cylinder (counting from the engine cooling radiator), in general I am confused where the 1st cylinder is from the radiator or from the cabin. There are no books at hand.

The distributor is now standing as it was when the car was driving normally, I did not remove the cast iron leg of the distributor, which means the distributor itself cannot be installed any other way.

Caring for K 88A

The occurrence of problems with Zilov carburetors can be minimized if this device is provided with proper care. To do this, you just need to follow simple rules:

The most important thing to remember is that during each maintenance, check the tightness of all carburetor plugs and plugs. If a leak occurs in at least one place, this may, over time, disrupt the normal operation of the unit.
Another thing that should not be forgotten during every ZIL maintenance is the mandatory cleaning of the float chamber, from which the sediment must be washed out. In addition, it would not be superfluous to blow out and wash the jets and channels once every six months (if not more often). It is best to do this with high-octane gasoline. If there is too much dirt, you can use acetone.
It is not advisable to put all washed parts back immediately. It is better to dry them thoroughly and then clean them again with a soft cloth.

A clogged carburetor is not a breakdown. However, negligence regarding the correct maintenance will sooner or later end sadly.

The car shoots into the muffler: the reason

The engines of modern cars run on gasoline, diesel fuel or gas. If adjustments in the fuel system, ignition or gas distribution device fail, unburnt fuel enters the exhaust pipe. This is where it is burned out. Because of this, the car sneezes into the muffler. Most often, shots are heard in gasoline cars. Less often on models with gas equipment (GBO). And it’s very rare that shooting in a jam-packed area “pleases” the owners of diesel cars.

Another cause of popping noises can be a dirty air filter. Due to the lack of oxygen, the fuel mixture becomes rich and therefore does not burn completely. As a result, unused gasoline accumulates in the muffler, and then its vapors detonate from high temperatures or flames from the cylinders.

These sneezes are not at all harmless, as they may seem at first glance. There is almost always a high risk of damage to components such as:

valve system;
exhaust pipe;
catalyst.

Consequences of shots in a silencer

Sometimes the bang is so strong that it completely destroys the elbow or the last part of the exhaust system (can).

General methods for eliminating a defect

Service workshop experts recommend checking the ignition: whether the timing belt has jumped 2-3 teeth. To do this, you need to set marks on the camshaft and crankshaft pulleys. If the engine has a carburetor, it should be cleaned and adjusted. It is also recommended to check the spark plugs, distributor, high-voltage wires, fuel injectors and air filter.

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.

Shoots the muffler on the ZIL 130 repair photo, video instructions with description

This category was created specifically for the request shoots at the muffler on the ZIL 130 - click. Articles, tips and tricks on do-it-yourself car repair and maintenance. How to repair a car yourself at home. We will help you with repairs and repair the car yourself. We know how to restore a car with minimal investment. I have attached video instructions.

Category: Car repairs

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Published by Admin: at the request of Nikolai

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Video: shoots the muffler on a ZIL 130

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Faulty timing belt

Malfunctions in the operation of the gas distribution mechanism are generally similar to problems with ignition. In particular, the exhaust valve opens at a time when the gasoline has not yet burned out. Accordingly, it enters the exhaust gas removal system, leading to the already familiar popping sounds in the muffler.

There are several causes of malfunctions in the timing system:

Timing belt wear . A sign of this malfunction is the appearance of additional metallic pops or noises when the engine is running at low speeds. In this case, you need to inspect the belt and, if necessary, tighten or replace it. You can read how to do this in the corresponding material.
Worn toothed pulley . In this case, it is necessary to replace it.
Partial valve failure . Over time, they become covered with soot (especially when refueling the car with low-quality gasoline), which leads to deterioration in the operation of the mechanism. And due to hanging valve springs, the engine overheats. Therefore, it is worth checking the valves. If you find slight roughness or bends on their surface, then grinding them in is a mandatory procedure. If the scratches are significant, you need to polish them or replace the valves.

Usually, if the timing belt is faulty, popping noises in the muffler are heard when the engine is warm . If the engine is “cold”, then they are not there. This is another indirect evidence of the timing's guilt. However, to find out exactly, it is necessary to perform additional diagnostics.

Why does it shoot at the silencer? List of causes of popping sounds from the muffler

Before you came here to read this article about the causes of explosions in the muffler, you have probably heard such pops more than once from other cars - most often old wrecks. This startling bang from the muffler is usually accompanied by fearful and hateful looks, and for the driver who is responsible for this noise, some level of shame for disturbing the quiet environment with such a bang. Let's find out why the engine shoots into the muffler, what are the causes of these pops and explosions, and what does the popping into the muffler mean during certain accompanying engine actions.

Popping sounds from the muffler - what is it?

This deafening blast comes from the exhaust pipe of your car. The pop can shoot out at any time, but it typically shoots into the muffler most often when you try to start your car or when you take your foot off the gas pedal and the engine speed drops. The firing occurs when unburnt fuel leaves the engine, but as it moves, it ignites somewhere in the vehicle's exhaust system. This can happen directly in the engine or later down the line past the muffler resonator. When ignited, this mixture of fuel and air tends to expand at an insane speed, which is why there is a loud bang in the muffler.

Will this type of pop damage my engine?

In almost all cases there is no specific danger due to the unpleasant consequences of engine explosions in the muffler. But if your car's exhaust system has weak points in the form of bad connections, leaky muffler walls or bad gaskets, the cotton can push these weak points into need of repair, because all this energy as a result of the explosion creates a colossal pressure that tends to escape through the weakest places.

Why the muffler shoots - all the reasons for the pops

There are a number of reasons that can lead to the engine starting to shoot into the muffler. The basic principle is the same - unburned fuel ignites somewhere in the exhaust system, but the reasons can be very different.

Poorly adjusted ignition timing . If your car has manually adjustable ignition timing, just a few degrees of incorrect adjustment can be enough to cause unpleasant consequences in the form of popping noises in the muffler. In this case, you need to go to a car service and adjust the ignition timing. Most newer cars, however, do not have this type of advance setting, but in them the cause of such popping noises can be a faulty ignition module or on-board computer, which causes the same problem in synchronizing the movement of the piston in the engine and the timing of the spark.
Mixed spark plug wires . If you have your spark plug wires mixed up after removing them and putting them back in the wrong order, you may experience exactly the same unpleasant consequences that we are talking about in this article. If you have just disconnected these wires, and your first attempt to start the car resulted in popping noises in the muffler, then first check the order of the inserted cords.
Incorrect valve timing adjustment . Valves that are set very poorly can leave enough of a gap to cause trouble. For that matter, broken or severely worn valves or the camshaft itself can cause similar popping noises. But this is the worst-case scenario, so there is no need to immediately blame the gas distribution system and try to diagnose it. However, if your vehicle is equipped with electronic valve timing, check the electronics as well.
Slipped timing belt . The timing belt is equipped with teeth that are needed for the gear to cling to them. If even one tooth on the belt comes off, your engine will not work properly and may have the unpleasant consequences of similar popping noises. Checking the valve timing will tell you if the timing belt is faulty.

Consequences of claps and shots

If you hear a pop when you sharply press the accelerator pedal, then you should definitely expect unpleasant surprises.

Among the consequences are increased fuel consumption and engine overheating. The motor in this condition will not develop full power. You shouldn't count on smooth idling either. Starting the engine is very difficult and sometimes almost impossible.

Read also: Where to complain about traffic police fines

If the carburetor slams, then the engine response to the gas pedal is inadequate. All fine tuning of the motor and each of its systems is lost. These moments are often accompanied by failures and delays in response to pressing the gas. At the same time, the car moves jerkily, twitches in load mode and in transient modes. The engine will sneeze and stall.

pops in the muffler. when changing gears it shoots into the muffler.zil 130

Konstantin speaks the truth!

The mixture is “poor” (the level in the carburetor is insufficient; the fuel pump is not delivering enough; the fuel line is clogged). Early ignition. And this is not only when switching, but probably also when driving with the gas pedal released and the gear engaged, right? This is the ZIL.

Reasons: rich mixture (carburetor faulty), late ignition, weak spark (see ignition distributor, breaker contacts, spark plugs), low-quality gasoline.

Carb gets rich, late ignition. I burn out the rest in the exhaust. You can try accelerating, turning the ignition off and on. With luck, the muffler produces a ROSE. Here's the same for you, but in miniature.

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