Sooner or later, almost every car enthusiast faces. As a rule, in various situations, the motor troit on hot or only on the cold, also the trimming can be noted constantly (regardless of the temperature of the power unit, the mode of operation, the degree of load, etc.).
If briefly, the engine troops means that one or more cylinders do not work, and there may be several reasons for such a malfunction. In this article we will talk about why the engine troit after warming up, how to diagnose a malfunction and what features help to accurately determine the problem.
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Motor Troit on hot: reasons and common faults
Let's start with the main signs. Often the cold engine starts quite normal, but then it starts to trim after partial warm-up or full exit on operating temperatures. In this case, the trimming can manifest itself both in idle mode and under load (when driving).
If the engine is drowning and give it to cool, after re-launching the power unit, it works exactly, however, the situation is repeated with warming. Let's consider the main reasons for the trimming of the gasoline engine and methods for detecting a malfunction.
- It should be started with checking and. It is recommended to immediately hold, check the state of the injector and nozzles.
In any case, incorrect readings or failures in the operation of the sensors (lambda probe, temperature sensor, etc.) and executive devices can cause the hot engine troit. Based on incorrect readings, it may well be re-entered the working fuel mixture and.
- Next you need to move to ignition candles. At the initial stage, remove the candle down high-voltage wires and unscrew the candles from. The following is a visual inspection of their contacts and insulators. Normally, the candles should be dry, grayish color ,.
If the candle is wet and / or grilled, then it is quite obvious that the engine oil or fuel does not burn in the cylinder into the combustion chamber in excess. In any case, the wet candle does not allow to achieve normal cylinder operation. We add that often both reasons are often present simultaneously or are a consequence of each other.
Simple words, there is a lot of oil in the chamber, electrodes are grilled, there is no sparks or spark is very weak. Subject to the absence or insufficient spark, the fuel does not burn or burns in part, which adds another problem to already existing grinding. One way or another, it is important to check all the candles to understand whether the phenomenon occurs only in one or immediately in all cylinders.
If all candles are wet, check. When the level is elevated (often as a result), the oil pressure in the lubrication system after the engine warming exceeds the norm, the excess lubricant penetrates the combustion chamber and pollutes the candles. The result becomes a weak spark.
In idle mode and at low revolutions, the engine TROIT: Possible causes of the unstable operation of the power unit. Methods of self-diagnosis.
How to determine the malfunction of the hydraulic components?
For normal operation of the motor, constant adjustment of the gaps in the cylinders is required. In order for this adjustment to be carried out in automatic mode, it is necessary to monitor the health of the hydraulic components. It is these, on the appearance of the simplest elements of the motor are responsible for adjusting the gaps in the valve drive mechanism. How to understand that hydrocompensators in your motor? Today we list the main "symptoms" to recognize a malfunction in advance.
The main sign of failure is the presence of extraneous noise during the operation of the motor. Immediately after starting the engine, a foreign knock occurs. Depending on the engine revolutions, the sound will change. Outsaw knock from under the valve cover. However, if there is a foreign knock in the motor, but it does not change depending on the revolutions or it does not appear immediately, then the reason for this knock is not at all hydrocomathers.
Running various consumers and additional elements, such as air conditioning or distant lights, should not affect the sound from under the hood. The knock may decrease or completely disappear when driving the engine. This means that the hydrocompensators are contaminated. They need to be rinsed, as well as replace the engine oil, it is it that pollutes "hydrics" and adds noise to the operation of the motor.
Having revealed that the cause of the extraneous knock is the hydrocompensators remain only to check which element has failed.
To check the hydraulic components on the inlet valves, it is necessary to do the following procedure:
1. Remove the valve lid from the engine immediately after stopping the motor.
2. Turn the engine crankshaft so that the piston of the first cylinder is in the upper dead point when compression tact.
3. Press on the shoulders of the inlet valve rocker
If when you click you managed to easily turn the rocker, then this is a sign that the node has failed.
To test the exhaust valve hydraulic components, you will need to use another method:
1. Slowly turn the crankshaft until the exhaust valve is started.
2. Monitor the plates of both valves
3. If the hydrocompensator is faulty, then the springs of the plate will move unevenly, with the deletion of relatively second valve.
This method is not suitable for motors with DOHC system. To diagnose it, it will be necessary to make force when trying to move the lever, which rests on the hydrocompensator. A good element should not succumb to you, but if you move it quite easily, it is worth thinking about the replacement of hydrocomathers.
Apply the test method for all hydrocompensators in your motor.
Before changing the hydrocompensators should try to clean old and it can help correct the problem with this motor. If the cleaner did not help, it remains only to replace the defective node.
can Lie troce the engine Because of the valve
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For many owners, the car is such a bad luck is really increasing. Engine Troit And it works unstable, what should be the background? Circumstances naturally can Be a few. But for some reason, when you tell people: "Change the candles at first," I answer: Yes, the candles have not changed so long ago. Well, then turn them out and look at nagaru on their condition. The 1st leaves the best. On defective candles, current leak is likely through cracks on the insulator.
Carefully inspect Isolator himself, whether there is no corresponding thin light strips on it, these stripes are traces from the spark when it stitches not where necessary. As a result, the injection motor Troit. In addition to obvious problems with candles can Be too large or small gap between the electrodes.
Following the candles, high-voltage wires fall under suspicion. Carefully inspect them for breakdown. Black dots with nagar or lanes with Nagar is a trace from the breakdown of the spark in this place. Can the motor troit due to the knocking hydraulic components when the engine. Accordingly, the spark to the candle simply does not reach the motor troit. Now the ignition module is in line. Alternately, remove the wires with the candles on the launched motor (just carefully and do not assure them away from the candle), you can hear the sound of the breakdown of the air gap between the candles and the tip of the wire.
Troit Priora, Hydrocompensators
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Help in the development of the channel: Yandex.Money 4100 1247 4375 83 Sber. Map 4276 6726 9189 5432 Discussing malfunctions.
Top 7 reasons why engine Troit, and what to do if troit? Simple verification methods
Troit engineWith this I came across every motorist. What are the reasons for what would be worth checking what.
If the sound of the sparks is not heard in all cylinders, then the module is most likely faulty. Among other things, the timing timing on the engine can be knocked down or incorrectly installed. In this case, the motor works unstable and as if troit, but there is a spark everywhere and fuel comes normally. Throwing can still because of the fact that the gap was formed and was it possible to wash the engine? Unlike labels when the crankshaft position sensor faults (for example, Mixless closure), the motor troit is inconstant.
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Can happen so that engine Troit on revolutions above 2000. And it is not always when the vitel in the sensor occurs, the control unit receives an incorrect signal about the position of the pistons and gives a spark at all at the moment when it is necessary. In addition to the spark, the moment of injection is also violated. Pulse from the crankshaft sensor can Be disturbed if the gauge between it and the asset disk does not correspond to the norm (usually 0.8-1.2 mm).
Damage or incomperant work nozzles too can Be the cause of the trim. If you checked the presence of sparks on all cylinders and spark, you can check the operation of the nozzles. Alternately removing the connectors from them, you can find out which cylinder does not work. But not the fact that the nozzle is to blame, can Still the candle. Without equipment, you can check only changing the nozzle by places. Heavy car owner remains to figure out: what exactly will have to change? And the alteration will most likely be subjected to many nodes. We will have to reconstruct (count - change) the fuel tank, customize the electrician, modify the exhaust system, from time to time to fit the box. And this is only a concise list. Often comes ...
The most common fault of modern engines is a knock of hydraulic components. The reasons are many, in their most people they are associated with the quality of oil. What to do with this malfunction and how to deal with it will tell this material.
What is the hydrocompensator and how the hydrocompensator works
Hydrocompensator is a simple device for automatic adjustment of the gap in the valve drive, eliminating the need to disassemble the engine during its maintenance. The hydrocompensator, in the surrounding "hydrika" is a miniature hydraulic cylinder, changing its length when the engine oil is injected.
Oil volume compensates for the gap between the valve stem and the camshaft camshaft. The oil in the cavity of the hydraulic components is hung through the valve with a very small hole, and it turns out through the natural gaps of the valve pair. How well works "hydrik" depends on the oil flow and on the state of the plunger pair, the lack of wear or jamming.
How to understand that the hydrocompensator is knocking
The faulty hydrocompensator makes a sharp knock, shock, with a frequency of twice the speed of the engine.
The hydrocompensator is considered to be faulty, which knocks more pairs of minutes after starting the engine or knocks after full engine warming up. A knock is listening on top of the engine and can be silent from the car's interior.
Why the hydrocommovensector is knocking
The reasons for the cooke of the hydrocomponancetor "on the cold" (with an immentable motor):
- Too thick butter, on an immentable engine, poorly enters the cavity of the hydrocommovensector. It takes time so that the cavity is filled with oil
- Clogged with pollution oil highway or valve hydraulic components. Pollution appears with low quality or under protracted shifts of motor oil, and can also be the wear products of some engine parts.
- Wear or jamming the plunger of the hydraulic components. It happens from natural wear or from the ingress of abrasive contaminants in engine oil.
The reasons for the cooke of the hydrocomponancetor "on the hot" (on a heated motor):
- Enclosing a plunger pair of the hydraulic compartmentdue to natural wear or pollution. The plunger's jackets block its movement and the hydrocompensator completely loses its performance. The clearance is not selected and the hydrocompensator is knocking.
- Too low viscosity of the heated oilThe oil flows through the plunger gaps faster than the pump is supplied. Elected-quality oil or too liquid oil for this engine is strongly diluted when heating and easily flows through technological gaps.
3. Increased oil in the engine, foaming of the oil due to the mixing of the crankshaft or due to the injection of water into the engine. You should check the oil level in the engine, as well as use only high-quality engine oils.
The easiest way to eliminate the knock of the hydraulic components
The easiest and most effective way to help in most cases, additive to the oil additive LIQUI MOLY oil. The additive is washed with oil channels, removes pollution and restores oil supply to hydrocomathers. In addition, the additive slightly thickens the oil, thereby compensating for their natural wear. The additive is added to the heated engine oil, the total action occurs after about 500 km of run.
How else can you eliminate the knock of the hydrocompensators
- Replacing hydrocompensators Advantages: Guaranteed Result. Disadvantages: expensive and long). It must be borne in mind that on some foreign cars, you first need to order details, wait until they come, and make an appointment in the service. On most engines, the replacement of hydrocompensators will require additional costs of disposable parts, such as laying or sealant.
- Careful washing of oil system with special flushing, for example: Liqui Moly. Advantages: relatively inexpensive. Disadvantages: The result is not guaranteed.
3. Perhaps in running cases, it will be necessary replacing the oil pump or cleaning of oil highwaysengine with its partial or complete disassembly.
What will happen if you do not fix the knock of the hydraulic components
If you do not engage in the removal of the vocabulary knock, then you can drive for quite a long time without any problems, but, with time, the engine will work louder, with vibrations, power will fall and the fuel consumption will increase.and then happen wear of the entire valve mechanism, It is part of the engine camshaft. His replacement is a very expensive event.
Outcome
If the knock of the hydrocompensators repeatedly arises, it makes no sense to wait down the situation. Additive additive will solve the problem and prevents the development of wear for a long time.
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Let's immediately determine that the wall of the hydrocompensator is a problem that arises in 90% of cases not on new cars, although exceptions are possible if the factory has installed a poor-quality part. But this is unlikely, since the hydrocompensator refers to a power unit, and the plants producing engines have significantly more stringent requirements regarding the quality of the components supplied by suppliers.
Problems with the bed of hydrocompensators over time may occur by car of any brand, year and country of release.
Options for manifestation of malfunction also a lot - on a cold engine, on a heated (as they say, the hydrocomathers on the cold or hot "- respectively), standing still and while driving.
There are a number of ways to eliminate annoying sound, each of which should be used in a specific situation.
But in order to understand why the hydrocompensator is knocking and the cause of his exit of their building, you must first figure out what it is for the mechanism, from which it consists and how it functions. And in general, something like a similar knock can lead, and what will happen if it is not possible to eliminate it.
Hydraulic car compensator - just about difficult!
In order to understand the principle of operation of the hydrocompanator, and, consequently, determine why it fails and how to repair it, you need to remember the engine. Remember how the valves are located and what are they needed for? The intake valve is responsible for the supply of fuel, and the graduation of the outlet of the fuel spent during the combustion of the fuel in the gase engine.
So, the hydrocompanator is a device that adjusts the valve clearance in automatic mode, thus providing a uniform fuel supply to the engine working chamber and the output of "testing". The installation of hydrocompensators allows you to exclude the process of manual adjustment of the valves for servicemen of the manufacturer, by the way, very laborious and long.
Why are the hydraulic components?
Now let's go close to the consideration of the issue from where the most unpleasant knock out of the hood of your car arises.
There are usually two common causes:
1. The knock arises due to damage, or the destruction of the mechanical parts of the hydrocompensator itself.
2. The knock arises due to a violation of the operation of systems that feed oil into the engine.
Professionals even know how to determine the knocking hydraulic components for rumor, and what exactly is the problem.
To the reasons for the destruction of the mechanisms of the hydrocompensator itself include the depletion of the voltage pair resource installed inside the hydrocompensator. This happens over time, unfortunately, the process is inevitable, so it should be replaced by the replacement of hydrocompensators as a replacement of any automotive "consumable". Depending on how the quality of the components were used in the production of the hydrocompanator, its service life directly depends. The lower the quality of the metal - the faster it fails. Naturally, there can be a factory marriage. Also, the hydrocompensator is damaged if air is inserted into it, or too little oil, or due to the contamination of the parts of the hydrocompanator. There are many reasons, but the result does not change from this - the mechanism fails and requires either cleaning if you diagnosed the problem at an early stage, or a complete replacement, if in late.
Regarding the oil supply disorders in the engine. The knock will arise if the oil level in the engine is different from the norm, and, both to smaller and to the most side. End of service life and oil filter failure. Contamination or ingestion of oil canals formed during engine operation.
Choosing an inappropriate oil brand. Naturally, if you have overheated the engine, the physical properties of the oil will change, which will also lead to disruption of the oil-based systems.
We have already talked above that the knock can manifest itself both when cold and when the engine is heated.
On the hot engine, the presence of a knock is most likely due to the presence of oil in the engine, which has long been time to change, or if you recently did it, it means that you caught the oil of improper quality - here, by the way, another reason to buy lubricating fluids only at official Representative offices or dealers. The bay of poor-quality oil can cause engine damage much more serious than the knock of the hydraulic components.
It often happens that the oil change to the new solves the problem with the bed of hydrocomathers.
If you have not changed the oil filter for a long time, you will definitely replace, or at least clean, for which the special purifier of the hydraulic components should be used.
Although according to the regulation of maintenance of the car, the oil filter should be changed simultaneously with the oil replacement.
If the execution of all of the above operations did not give any result, other options for the occurrence of the knock on the rotor space should be considered, since the filter replacement and the use of high-quality engine lubrication in 90% of cases helps to solve the problem. Remember that a knock under the hood when the engine is heated is a critical indicator and requires urgent intervention and eliminate the cause of its occurrence.
And vice versa, if you have careered the hydrocompensators on another unleashed car - it does not matter. Cold oil has other physical characteristics other than hot and does not fall inside the hydrocomathers, so you should simply wait for the engine warming. If the knock persists - then you should proceed to solve the problem.
Which of the hydrocompensators is published?
To determine which precisely from the hydrocompensators is published (usually their number is equal to the number of valves of your engine) use the diagnostic method of "on rumor", while applying a technological type of such a medical device as a phonenoscope - you have almost certainly seen it on your neck from your therapist.
It is this instructor that allows the master to say exactly where the source of the knock lies, although the real pro, of course, determine this and without any phonenoscope.
After diagnosing the knocking part, you need to remove the hydrocomponator thoroughly, after which you install the engine again and start the engine.
When saving a knock, the hydrocompensator is recognized as a failed, and the service produces its replacement.
If after replacing the knock is saved, then the reason is likely to lift as the oil used or in other engine nodes. The latter is unlikely, since the diagnosis of the sound source with the help of the phoneneoscope is the exact procedure and failures, as a rule, does not give.
Consequences of inaction when knocking the hydraulic components
If the knock really is published by hydrocompensators, the late replacement, or the repair of hydrocompensators will lead to a reduction in the operational resource of the drive of the gas distribution mechanism and the head of the cylinder block.
Repair, both the first and second node - the pleasure is expensive and burdensome.
And finally, let's say that you can certainly have to diagnose the problem on your own and eliminate it on your own.
But flushing or replacement of hydrocompensators is already direct interference in the system of the power unit of your car, so if you feel the slightest doubts about your abilities - bother to contact an authorized service center.
If you "swell up", then you will still need to turn to the "Officials", and they will definitely determine that someone has already looked under the valve cover, because even the check of the hydraulic components requires the opening of the valve lid and the crankshaft rotation manually.
In the most negative development option, you will not only pay expensive repair of the power unit or the timing of timing, but will also be discontinued with warranty service (if your car is still subject to warranty).
Any risk must be justified, and the replacement of hydrocompensators is not the problem that in the middle of the automotive route is solved with the complete absence of spare parts and the necessary tools. Think 10 times, is it worth it for such work yourself, or better entrust her professionals.
Timely detection of problems and simple operations to eliminate it, even if you contact the service, is the guarantee of saving your funds and the resource of the machine's power unit.
