If the oil slimming caps are worn. What is the oil surcharge and how they are arranged

In the design of any engine, and the domestic car, and foreign cars, there are oil-challenged caps (valve glands).

They are always involved when the car works, therefore we are wear out very quickly. Increased service life - the headache of engineers working at automotive plants, but the timely diagnosis of signs of wear of the oil-circulation caps, as well as their replacement - the task of motorists. You can cope with it successfully only in one case, when these very signs are known to you, and if not, then to help you this article.

How do oil surgical caps work and when they are considered wear?

As is known, the valve in the engine is located in two different cavities. One of them implies a motor oil in it, the other, on the contrary, should be isolated from it. At the same time, the valve at its work is in constant motion. In order to maintain the tightness of the hole through which it moves from one medium to another, just the scale caps. They are made of special elastic rubber, however, this rubber one over time has the age of age, hardening, to dispel and collapse, as a result, the caps stop cope with the task set before them and begin to be replaced. Car owner This moment can determine on special features.

The main signs of wear of the oil-challenge caps.

Increased oil consumption - if the engine oil is spent in your car more than it is supposed, it means, somewhere it is used in vain, as an option, it enters the combustion chamber due to the wear valve seals.
Oil nagar on the ignition candlelight is a consequence of the fact that oil falls into the cylinders.
Blue exhaust at the time of warming up the car, the motor heats up - the smoke disappears. Such a phenomenon is a clear sign of a fascinating cap, which, heating to a certain temperature, becomes wider and starts to successfully cope with the functions entrusted to it.

However, be extremely attentive, these features may indicate not only the wear oil-free caps, but also about other problems with the engine! Therefore, at the time of diagnosis, do not forget to pay attention to:

mileage - as a rule, the glands need to be replaced every 70-80 thousand km. mileage;
compression - if it is reduced, but you have not found any leaks or problems with valves and / or rings on pistons, it means that the problem is exactly in the caps. They should be replaced.

The consequences of driving with wear oiling caps.

If the time of failure of the valve glands was missed, then, most likely, it will lead to the following consequences:

increased oil consumption, which, firstly, will not be better reflected on your budget, and secondly, it will provoke periodic oil starvation, leading to increased wear of parts and the need for premature motor overhaul;
grinding and ultimately the failure of the spark plug;
navigating the valves - the NAGA will be formed everywhere where there is oil, including on the walls of the cylinders, that over time will interfere with the closing of the valves and lead to their exaggeration.

That all this does not happen, spend a timely replacement, as soon as notice the first signs of wear of the oil-challenge caps.

We will not consider the procedure for replacing the oil-challenge caps now, this is the topic of a separate article, but the basic recommendations that will protect you from errors, finally let's call. They are only 3:

to dispel the valves, always use a special tool - dismissaler, so you will have less chances to break something or lose;
changing the caps, cover all the holes available on the engine with a rag or foam rubber, they will remove open cavities from dirt from entering, and you are from loss of sugar;
before installing a new cap, be sure to lubricate the oil.

And remember, if you do not have sufficient experience and knowledge in the question of replacing valve seals, noticing signs of their wear, do not experiment, but give your car into the hands of professionals, they will quickly replace the details of the details on new and take a little in this case. Depending on the car and one hundred expenses will be from 7 to 20 thousand rubles.

Video.

Engine valves work in very difficult conditions. From above on them, the distribution shaft is continuously affected, great friction is created. And below they are located in a high temperature of exhaust gases. The camshaft, perhaps, more than other parts of the engine is lubricated with oil, as a result, it falls on the valves by which flows down to the combustion chamber. If you do not prevent this process, the following will occur. The oil will be mixed with the air mixture in the cylinders and burn. This will lead to the formation of a car on the walls of the combustion chamber, on the pistons and piston rings - component. Engine wear will increase and the characteristics of its operation and the quality of the combustible mixture will deteriorate. But the biggest problem is that the nagar is formed on the valve seat and its head (from above on a flat part, the so-called "skirt"). The valve stops closing. Such a malfunction is a serious violation of the engine, which in a small time leads it in a non-working condition.

Where are the oil surcharge caps

In order to prevent oil from entering the combustion chamber, an oil slimming caps are installed on the valves (they are the valves of the valve rod). Singing the oil surcharge caps with oilmaging rings. It is except that only in the title. How to find out, occargable caps or rings? The caps are small rubber glands, and rings are large metal subtle formations that are ideally included in the piston grooves (crank-connecting mechanism). While the oil slimming caps are where the valves and guide sleeves are located, between them (and this is already a gas-distribution mechanism).

Valve's valve gland is essentially consumable in the car, but the replacement of such an element is equal to the motor overhaul, as it is impossible to change it without disassembling.

How many engineering caps in the engine? They are in the engine exactly as much as valves. That is, if it is an eight-flaped internal combustion engine, then the caps, respectively, eight. When the valve moves, opening and closing the intake / outlet, the cap removes from the rod (with a narrow long part of the valve) excess oil in such a way that the operating surfaces (that is, that part of the valve that interacts with the camera) remain dry. The oiling caps are made of rubber, which under the influence of the aggressive medium is rapidly wears.

Symptoms of wear of oilmaging caps

Like any consumage, the sealant has its own regulated use time. The resource of the oil-challenge cap is 100,000 km of mileage. But as practice shows, the glands come into disrepair before the regulated time. This is evidenced by the following problems:

education on Nagar Ignition Candle
reducing the level of engine oil
the appearance of a sizogue smoke from the exhaust pipe with a strong pressed on the gas pedal.

The location of the oil surcharge

The most optimal solution is the installation of oilmaging caps recommended by the manufacturer of this vehicle.

Such symptoms on the car give rise to think about replacing the valve rods. Do this, of course, is better in specialized car services. The price of replacement of oil-challenge caps will fluctuate in the area of \u200b\u200b4 - 8 thousand rubles. How much are the oil-challenge caps? Relatively inexpensive, about 500 rubles for each. Now you can calculate how much it costs to replace the oilmaging caps. You can make an operation with your own hands. But note that the glands are easily deformed with the wrong handling of them.

The first thing you need to do is choose the desired oiling caps. Acrylate rubber more modern material than fluorocouette. The size of the oil-sensitive caps can be calculated by measuring the diameter of the existing valve is for the inside. As for the models of the seals (here you can also include external size), you can install new ones on the old DVS, but on a new outdated not the best option.

Replacing the oilmaging caps with their own hands

To work, you will need: Set of keys, valve silencer, nippers for oil caps, mandrel. It is preferable to change the oil cap caps on the dismantled head of the cylinder block. It is possible to remove the oil-free cap without removing the head. To do this, it will be necessary when removing the seals from the valves for each piston to set the upper dead point. Otherwise, the valves have every chance of falling into the cylinder, even if you are to hold them, moreover, when installing new caps without stopping, it will be extremely uncomfortable.

Procedure for replacing the oil-challenge caps

So, how to change the oilmaging caps? Installed VTT or removed CFC. To work, it is best to use a special tool for replacing the oil-challenge caps, but also we will look at how you can remove the oil slimming caps without puller. With the help of the dismumbering, the plate and the valve spring is covered. Next, the glands are dismantled with special tongs for oiling caps (some use passatatages as a puller of oil-circuit caps with their own hands, but it is worth considering the risk of damage to the valve rod when using a non-specialized tool). A special rim for oil-challenged caps is clogged with a hammer of a new gland (replace the mandrel can be a metal tube of a suitable diameter, but extremely undesirable). For easier stroke and the inner surface of the rubber element can be lubricated with engine oil. Blows must be unsiler and accurate, since this detail is fragile, exposed to strain. The installation of the oil surcharge cap in the landing socket indicates a deaf sound. The same is done with the rest of the valves. After the new rods of the valve rods are installed, the return mechanism is back covered, the CCC is collected, the other attachments returns to the place. The operation is completed.

Finally

After replacing the oil-challenge caps

To increase the service life of the oil supply, special additives are used for oil-giving caps. Some of them affect the rubber part, softening it, others are directed to the sealing of the resulting gaps. If the use of additives to restore the oil-circuit caps still has its effect, then the restoration of the oil-sensitive caps seized from the engine does not make sense at all, since they will be short-lived, and therefore, in the near future, you will have to spend again on the procedure of their replacement, which is at all unprofitable.

If, after replacing the oil-challenge caps, the problem could not be eliminated, it means that the replacement was made incorrectly (rarely) or the malfunction was included in the other (often).

A frequent question of car owners: "Why after replacing the oil-challenge caps smoke the car?". Most likely, it was necessary to replace non-caps, and the above-mentioned oil-challenged rings (they are similar to them).
How to check the oil slimming caps? Some car enthusiasts check that it became out of order, caps or rings, so: if smoke goes out of the exhaust pipe 1-2 minutes - then these are caps, and if it does not disappear, then it is rings.
Neglect this operation, or it is not worth it for it. After all, for the failure of small rubber seals, there are great faults of larger nodes of the internal combustion engine up to the complete stop of the "car heart".

Insufficient closing of valves leads to the appearance of lacquer sediments in the cylinder head and on the piston group.

Criteria pointing to wear salon:

regular appearance of Nagar on the ignition candlelight;
overestimated motor oil;
lack of stable speed at idling;
with a sharp increase in revolutions - abundant separation of smoke of the sizogue color.

The passage of maintenance includes regular oil, air, oil and fuel filters. Valve glands are designed to operate a car up to 100,000 km. In fact, it is necessary to replace the replacement earlier than the specified resource.

The device of oilmaging caps (valve seals)

The oil seal has a cylinder form with a truncated cone. For dense contact with the surface of the guide valve, a polymer ring with a spring-expendler is provided. The plastic (or rubber) ring removes the excess oil when the valve rod moves, and the spring allows you to firmly fixed on the rod.

In the design of the gland, a rubber ring was used for a long time. Options from rubber and fluoroplast have recently appeared. This is due to the fact that the rubber is faster all the way and loses its properties. The manufacture of the ring using modern polymers prolongs the service life of the gland.

Purpose of oil-changing caps

Long-term uninterrupted operation of the engine is provided with high-quality lubricant of rubbing parts. The oil distribution mechanism provides oil supply in a small amount. Switchgears in the head of the cylinders and the piston group - need constant lubrication. The shaft rotates and the cloud of oil is formed around it. Regulation of the amount of lubrication occurs with oil caps.

Nagar on the surface of the valve leads to incomplete closure and appearance of the gap. In the combustion chamber, a combustible mixture is ignited, and excess oils are settled in the form of lacquer sediments. When lowering the valve down, the stem delicate prevents the excess oil inlet. Protects the piston group from the plaque arising from the combustion of oil and the fuel mixture. Oil-oil caps are related to consumables, as they need a periodic replacement.

Location of oilseed caps in the engine

On the cylinder block installed a head with camshafts and valves. The valve rod moves through the guide sleeve. The heat gap between the leg and the sleeve is closed with caps. The gland is located so that the oil from the head does not fall into the combustion chamber. The neck of the camshafts produce oil under pressure, and the rest of the nodes - at the expense of splashing. After removing the head of the engine block and switchgear, you can see the location of the glands in the valve seats.

Signs of wear of oilseed caps

You can learn about the need for replacement without monitoring the engine. There are engineering caps following wear signs:

exceeded oil consumption;
bluish smoke;
nagar on ignition candles.

When depreciation of the oil, oil consumption increases. This occurs when the piston group is "encrypting", but there is a visual difference. Oil drills are noticeable on the Sapunka pipe. Size smoke exhaust - a sign that the oil gets into the combustion chamber. The "Trojection" of the engine and the net on the ignition candles are substantiated by the oil flow through the stock gland. The car requires the diagnosis and replacement of the glands.

The service life of oils does not depend on the price and manufacturer. For budget and premium, the auto resource is designed for mileage up to 100,000 km.

Procedure for replacing oil-leaf caps

Disconnecting the air filter, removal of the lid and air ducts. Pipes and technical openings are closed with plugs. Candles and cylinder head bolts are unscrewed.
The piston in the first cylinder is installed in the upper dead point. Removing the lock washer and stars. The lock nuts of the valves are popped, and the regulators are unscrewed until it stops.
Sugari and springs are removed. The seals are removed. The bushings are lubricated with oil, wear on the rod and are installed with a hammer and rim.
Collect nodes and details in the reverse order. After, the same algorithm change the remaining caps in the order of cylinders 4 - 2 - 3.

The maintenance of each cylinder needs to turn the crankshaft by 180 degrees.

An independent replacement will require a special tool. The main specific adaptation is the "dismounting" of the valves. It will be needed to replace the valve seal. Devices and materials:

sets of end and precipitant keys;
extension with heads;
rod and hammer;
collet clamp;
pressing frame;
tweezers;
gasket under the head;
a set of new caps;
sealant.

When carrying out work, it is possible to replace the gaskets under the block and the head of the cylinders. New seals are selected for a specific engine model.

The procedure for replacing oilseed caps

Consider how the oil-changing caps on the 8 valve engine is replaced without removing the head:

Remove the fuel pump and air filter.
Turn off the battery power and dismantle the ignition distributor.
We unscrew the upper cover of the block, disconnect the toothed pulley and mass.
Uniformly unscrewing and removing the fastening nuts on the camshaft and bearings.
We dismantle the shafts and glands.
Rotate the crankshaft, raise the piston in the VMT on the serviced cylinder.
Soft rod from tin We insert under the valve through the candle hole.
We remove the springs with a special device and remove the plates. We carry out the replacement of the seals by pressing the old from the bushings and installing new ones.
We take the assembly in the reverse order. Go to a consistent similar replacement on the remaining cylinders.

Before installing in rim, the caps are lubricated with oil. They will be pressed into a plate carefully, without sharp strong blows.

Under bolt caps, gaskets and seals are installed. Small elements sort to avoid their loss.

After replacing all the valves of the valves, collect the head, putting on the sealant and a new gasket. Nuts Tighten with a certain moment of effort, according to the manual for the operation of this engine.

For different engines, the sets of valve seals differ in design. Installation is made according to technical recommendations for a specific car model. When carrying out work, adhere to accuracy:

coincidence of the diameters of the sleeve belt and the valve rod;
the length of the seats of the guide bushings and the cap;
installations for oil with reliable fixation (without the slightest backlats);
selecting a set of caps for a specific engine model.

The high class of accuracy of the manufacture of parts allows you to increase the density of the connection and the complete matching of the sizes.

There are additives for the restoration of the seals. Their principle of operation lies in the softening of the convexed rubber of the sealing ring. Manufacturers are characterized by the quality of additives. There is a different effect on the rubber: without an effect or excessive softening, which leads to an overpowering of oil.

Each driver of a passenger car with DVS should be able to distinguish signs of wear of oilmaging caps, as otherwise, the development and hardening of valve seals is fraught with a number of consequences. If you detect the problem in time, then you can without any particular problems to buy a removal for dispersion and replace the rubberometallic parts even without removing the head.

How do valves oil seals work

The oil surcharge caps, as they are called in common, are installed directly on the rods of the valves, are a combination of a rubber coating and a steel sleeve designed to increase the stiffness of the structure. When the valve opens, the cap covers it, without allowing oil to flow into the cylinder. Of course, a certain part of the lubricant still falls under the seal, but this is the norm - there is a natural grease node. Over time, the elasticity of the part decreases, it is sinking, and an increase in the volume of the resulting fluid is observed. As a result, oil "leaves", causing to top up to the norm more and more often.

Signs of wear of oilmaging caps: how much oil takes the engine 1.8

The first and main symptom of hardened, worn outlaws of the valve - overruns of engine oil. True, some engines perhaps the regulations permits noticeable deviations from the generally accepted rate of 200-300 ml per 1000 km of mileage. Thus, the turbocharged motors 1.8, installed on the Volkswagen AG autocontracene models (Volkswagen, Audi, Skoda, Seat) on legal grounds require the lubricant topping up to 500-700 ml per thousand kilometers. A similar situation consists around the PSA Peugeot Citroën engines developed in conjunction with BMW (also installed on the MINI model) - the passport details indicate the "normal" in 1000 ml of engine oil, which must be added to the engine every 1000 km.

Such things emphasize the importance of the knowledge of the "its" oil consumption. If the power unit between service operations consumes noticeably more recommended values, then this is a serious reason to think about the replacement of oil-challenged caps.

The second sign of the care of oil into the cylinders due to the loss of caps of its condition - a bluish-gray smoke from the exhaust pipe, which can be clearly seen in the first minutes of the motor and then when gear shifts, while pressing the accelerator pedal. Also eloquent evidence of the above problem are oil deposits on the threaded part of the ignition candle. When the pressure increases in the combustion chamber, then the mixture is per capitted by oil partially squeezed through microscopic gaps. For example, through the threads of the candle, where the gap is not more than 0.3 mm. Under the influence of high temperature, gasoline from the mixture is disappeared, leaving behind a fair "stock" of lubricant material. Indirectly indicates the death of the cap and the dark nagar on the electrodes.

Exactly the same soot appears on the walls of the cylinders. And if you ignore the problem, then one day, due to the plaque, the valve is simply nourished.

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How to understand what the replacement of the cap is needed, and not the piston engine system

It is very easy to confuse signs of drying the valve glands and the production of a cylindrophone group. In both cases, the problem is brewing after 200,000 km, often takes place on used cars that were purchased without proper diagnosis. Moreover, Zhor oil, blue smoke is characteristic of both the other disease. Here are just the hardened oil-challenged caps do not affect the compression indicator, which usually falls when the piston rings are used, the walls of the pistons themselves and cylinders. If the machine consumes too much oil (from 1 l per 1000 km), but the compression in the cylinders is normal, then 90 out of 100, which is caps.

Additional checks are performed on a working engine with a rejected oil-tapping sheet: at a motor that requires the repair of the CPG, the smoke from the neck should be observed, while those who spent their caps do not cause.

The price of the puller "Suharai" Toyota, Volkswagen, Audi and the principle of his work

An integral attribute for the replacement of oil-challenged caps on any engine, whether the Lexus or VAZ is the so-called dismissaler. This is a corporate or universal (suitable for motors of various brands) tool for clamping springs valves, without which repair does not seem to be possible. The principle of the driver of the crackers is quite simple: it is distributed to the engine housing with reference points, with the help of mechanical pressure on the plate of the valve return spring is clamped, which allows removal of crushing.

It should also be taken into account that universal pullers are often not so multitasked - some designs are suitable for motors with a layout of ONV, onc, HV, others are designed specifically for service "Opolev" SOHC engines, etc. You should specify the moment before purchasing the tool.

The price of the dismissant:

for topless engines - from 3500 rubles;
for OHV, OHC, CHV engines - from 2000 rubles;
a comprehensive set of tools for dispelment on Toyota Camry engines, Volkswagen Golf, Mitsubishi Lancer, et al. - 20 000 rubles.

Equipment, as in the photo - an integral attribute for replacing the oil-challenge caps on any engine

Change without removing the head: Remkomplekt Ford, Mazda, Nissan

In the official service, specialists usually insist on the option of replacing caps, which provides for removing the head of the cylinder block. So make dismantling / installation of the glands is noticeably easier, and everything spent on GBT time is paid at the expense of the client. Thus, the decent amount of money falls. But if you do not reach the removal of the "head", then it will take less nerves, time, you do not have to spend money on the gasket GBC and new bolts. When accessing the distributor (it is not necessary to buy - it is possible, for example, temporarily lend from a comrade) It remains small. It is necessary to purchase a set of branded or non-original oil-challenged caps.

The cost of the original Remkomplekt (valve seals):

Toyota Camry 2.4 - 1300 rubles;
Ford Focus 1.8 - 1500 rubles;
Volkswagen Golf 1.6 - 1800 rubles;
Nissan Cascais 2.0 - 1500 rub.;
BMW x3 2.5i - 2200 rubles;
Mazda 6 1.8 - 1600 rubles.

Replacement MSK on Mitsubishi Lancer IX 1.6

Consider the phased process of replacing valve seals on Mitsubishi Lancer 1.6 of the ninth generation without removing the head of the cylinder block.

Disassembly of ignition coils are made, after which the candles are twisted.
After unscrewing six bolts, the valve cover is removed
The hoses are disconnected.
So that the hydrocompensators do not raise, they can be secured with wire or plastic clamps.
It is necessary to unscrew the 13 bolts of fastening axes of the rumor axes. Aims are removed assembly without turning (in order to avoid leakage of oil from compensators).
So that the crackers do not fall into the pallet, the engine openings are blocked by foam rubber, clean rags.
With the help of labels on the pulley and the head, the NTT is exhibited in the first and fourth cylinders.

The puller of the superstars is attached to one part to the body of the valve head, the second - rests on the plate, which allows you to free up and get a cracker tweezers.
After deletion of a plate with a spring, access to the cap appears.
Disassembly of the cap itself ideally, it is necessary to produce through a special removable device. But for the absence of such, it can be used to work with pliers. However, in the absence of delicacy, you can easily damage the valve guide.
Before changing the old and new caps, it will not hurt check the valve itself to check for the left.
Lubricated with oil a new cap is painted with a suitable mandrel - you can use a 15 mm spanner.
The spring and the plate are returned to the place, with the help of a tweezers and remover, the cruck is put back.
The replacement of MSCs in the remaining two cylinders is made after turning the pulley by tags and setting the VTT.
It is very desirable to tighten the bolts of the rocker axes to produce a torque wrench in compliance with the values \u200b\u200brecommended by automaker (50 nm).

Features of the replacement of caps on the 16-valve VAZ of Priora

To access the caps on the prior, you will have to first unscrew the candles from the wells, dismantle the ignition coils, and also remove the throttle assembly. After that, you can unscrew the valve cover bolts to remove the rocker and actually replace MSC using the puller. In general, the alignment of such as in the case of Lancer: NMTs are set in cylinders, crumbs and springs are removed, new oil seals are taken, there is a reverse assembly. As a rule, the entire complex of work takes away from the performer from 8 to 12 hours.

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The internal combustion engine works as a single complex mechanism. The effective interaction of gas distribution and crank-connecting mechanisms and from the engine lubrication system in many ways provide oil surcharge caps. The driver not only should be familiar with the functions performed by the functions, but also to properly diagnose the wear and need to replace the glands.

For what we need oil-challenge caps

The movement of the piston in the cylinder contributes to splashing oil under the skirt. But the thin lubricant film is removed by the oil-circulation rings that are dressed on the piston. On the other hand, in the gas distribution mechanism, the intensition of contacting surfaces occurs.

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Under the cover of the block head, a peculiar oil suspension is created. On the border of the cylinder and the cavity over it and there are oil consuming caps. Their task is to prevent oil fog and oil from the feet of the valve into the combustion chamber of the cylinder.

It is not difficult to guess with permanent contact with the valves of the gases distribution mechanism that the caps are experiencing a permanent load. Each valve makes hundreds of movements per minute, and the oil is warm up to high temperatures.

How many and where they stand on the engine

Based on the appointment and work performed, it is easy to install where the oil-challenge caps are located. If we consider the engine assembly, then the cap is dressed on the valve rod. Structurally, the part is a plastic part in the form of a sleeve of a special stable material and a metal base.

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The location of the engineering caps in the engine during its disassembly is defined as the head of the cylinder block, at the place of the valve input to the working chamber.

If in the engine 8 valves and 16 valves

Breaking your head about how many oilmaging caps in the 16 valve engine do not have to. The number of these responsible parts is equal to the accuracy of the number of valves. Those. If the engine with 4 cylinders states that 2 valves per cylinder, then the cap will be 8. In more modern motors, where the valves per cylinder 4, the number of glands will be leveling 16. Provided that the engine4-cylinder.

Causes of wear

Along with constant mechanical exposure, the cap is experiencing an aggressive effect of heated oil and impurities in it. Do not forget about the hot exhaust gases at the occurrence of the exhaust tact.

Over time, natural rubber grubes, the walls of the bushings are cracking and abrase. Despite the fact that the maintenance regulations did not define the accurate interval of the receipt of the caps, when the corresponding symptoms appear, it is not worth tightening with a replacement for new parts.

How to determine the need to replace

Among the main criteria that directly indicate the need to replace the oil surcharge caps are called:

Spark plug-in electrodes. The oil has the ability to leak into the combustion chamber.

Increased oil consumption. Compared with the traditional "appetite" 1 liter / 10,000 km, similar consumption increases to a liter for each thousand.

The appearance of a sizogue smoke when exhaust. A part of the oil has time to burn during the compression tact.

Sometimes a dilemma is rising, which is the cause of the sizogo smoke from the exhaust pipe. In error, it is often called such a cause of wear of the details of the cylindrophone group. To finally decide, it is necessary to overhaul the engine or the replacement of the oil-challenge caps, it is enough to check the compression. The normal value of this indicator allows you to confidently indicate the caps.

By the way, briefly the problem of increased oil consumption will make it possible to remove the use of special means. The special additive of the softening of the oil-challenge cap will allow you to restore the functionality of parts a couple of thousand kilometers. There is a additive after 500-700 miles of run after adding. Do not tighten with the repair, most likely similar engine wear symptoms will soon appear again.

How to choose everything you need to work

When contacting the service center, the oil surcharge caps will not be difficult. However, this approach will mean for the owner of the auto option to perform work with the removal of the head of the block, which implies the replacement of gaskets, fastening bolts. Yes, and the time spent here are big. This option means a significant overpayment.

The easiest option is to perform work yourself. To do this, it is worth preparing a tool for replacing the oil-challenge caps and buy a set of consumables for a single engine.

What caps fit: sizes and price

When determining which oil-free caps are better for a particular motor, it is worth paying attention to the original kit. You will receive a high-quality product, and the price does not seem significant.

For example, a set of original spare parts for popular models costs from 1.3 thousand rubles. (Toyota Camry 2.4 L) to 2.2 thousand rubles. (BMW x3 2.5 l). When compared with the available counterparts, the oil-sensitive caps are cheaper than the amount from 800 to 1200 rubles, respectively.

If you select Analogs, do not be lazy to check the corresponding part of the VIN number, or ask the store manager's consultation.

We select the removal

To successfully replace the oilmaging caps without removing the heads, you will need to buy a special tool. As a last resort, it turns out to be borrowed such a set of a neighbor in the garage.

To perform work, you will need a tool, better known as an exhauster. When choosing, it is worth paying attention to the equipment with an appreciation of it to use with a specific engine. The use of universal devices is allowed. However, some "universals" are still calculated on a specific engine type - with HV or SOHS layout.

The tool is designed for clips of valve springs by mechanical pressure. After removing the superstar, access to the oil surcharge caps.

The order of removal and installation do it yourself

At the initial stage of the work, the car is dealers, the ignition coil is turned off and the candles are turned off. The piston of the first cylinder is installed in the upper dead point. Further, to change the oil-challenge caps, the following operations perform:

The valve lid and all hoses are removed. Rocker bolts are turned away.

Remove the rocker. At the same time, control the crackers during removing with the axis. Do not remove the rocker from the axis and do not turn over so that the oil from the hydraulic compensator does not flow.

Install the puller and squeeze the spring. As a result, two crushers are released, which need to be removed (convenient to use tweezers).

We remove the valve plate, get access to the spring and the valve puck.

We write the set detail. It is possible to use either a shock collet or pliers for tightening the cap along the axis.

Before installing a new cap, check the flavor of the valve itself in the guide. If the indicator does not exceed 0.15-0.20 mm, set the valve back.

A new cap on the lubricated valve axis is dressed using a mandrel. Returning in the reverse sequence of spring and valve plate, crackers.

When tightening the bolts of the rocker, use the dynamometer key. Often the tightening torque is set at 50nm.

If it is necessary to change the oil-circulation caps in the cylinders 2 and 3, the pistons are also required to be translated into the extreme position.

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