Oil scraper rings. Replacement at occurrence, decarbonization, appointment

2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:41

As you know, a car cannot always be in perfect condition. Quite often, parts fail, and not only because of a breakdown. They have a tendency to wear out. You can replace parts, such as valve stem seals or rings, either on your own or by contacting a service station. Of course, this pleasure is not cheap, but it can greatly simplify vehicle repairs. After all, it is very important that everything works properly in the car, since the safety of people who are in the passenger seat completely depends on this. Specialists will do all the work themselves, after which the vehicle will be like new again.

This article is intended for people who, for some reason, want to carry out car maintenance on their own. Namely, we will talk about how to properly replace the oil scraper rings.

General concepts

For motorists, the concept of oil scraper rings is far from new. This part is one of the most important components of the engine. Piston rings, which includeoil scraper, consist of several elements, such as:

• lower oil scraper;
• top compression;
• compression-oil scraper.

A lot depends on their technical condition. For example, oil scraper rings directly affect the amount of fuel or oil consumed, the level of exhaust toxicity, and the power with which the car can accelerate. And also, most importantly, the condition of the starting properties of the engine.

What do you need to replace oil scraper rings yourself?

In order to replace the rings, you will need tools such as

• puller;
• tweezers;
• drill designed for pressing;
• metal rod;
• cracker.

Purchasing Parts Highlights

Before proceeding with the actual replacement process, you need to purchase new parts. You should buy only original oil scraper rings, the price of which is not lower than 300-500 rubles, depending on the models. Why is it not recommended to buy cheaper parts? As a rule, a low cost indicates either a low-quality product or a fake. Such spare parts cannot guarantee the correct operation of the engine, so such a car simply will not drive more than several thousand kilometers. And what is most unpleasant in this moment, the breakdown can be much more serious and require large financial investments.

Quite often repair specialistscars, oil scraper rings are specially selected, consisting of a material that is fully consistent with that of which the engine itself is made. As for the other components (caps, etc.), they must also meet all the criteria.

Piston rings highlights

Not every vehicle owner knows all the important nuances about piston rings. And this knowledge is extremely necessary when replacing parts on your own. For example, piston ring clearance is of great importance for the operation of the entire system. Let's try to figure out what it is and what it is for.

First of all, everyone knows from physics lessons that objects have the ability to expand when heated. The same thing happens with the piston mechanism. If you do not withstand the gap, then this will gradually lead to a violation of the rotation of the circles. And this, in turn, will make it difficult to remove heat.

The piston design includes oil scraper and compression rings. Each of these types has a specific function. Compression rings do not allow burnt gases to pass through, oil scraper rings clean the cylinder of oil residues. When heated, these parts expand, which can cause the rim to seize. In order to completely prevent this, a piston ring clearance in the range of 0.3 to 0.6 mm is required. Failure to do so will result in serious damage to the cylinder.

Replacing rings: where to start?

So, new parts have already been purchased, then you can proceed directly to the processtheir replacements. The first thing that needs to be done next is the dismantling of all nodes, as well as mechanisms. This will provide full access to the necessary parts, or rather, allow you to freely replace the oil scraper piston rings.

What is included in the dismantling package?

1. The air filter should be removed, then the fuel pump.
2. Don't forget about the distributor in the ignition system. In order to dismantle the drive housing, it is necessary to disassemble the bolted connection.
3. After that, remove the "minus" terminal from the battery, as well as the pulley (gear) from the camshaft. On this part of the work can be considered successfully completed.
4. Next, in order to better get close to the cover located on the head of the block, it is necessary to remove the mass drive.
5. The last thing you can do is unscrew the nuts that secure the camshaft bearing housings.

Second stage of dismantling works

In order for the replacement of rings and valve stem seals to lead to the correct operation of the engine, a general diagnosis of the car is necessary. As a rule, at this moment, the wear of other parts and their quality fit are checked. Under no circumstances should the position of the camshaft keys be ignored. If during the dismantling process it is noticed that they are not too tightly planted, then they should also be removed. This must be done to avoid losing the part while the vehicle is in motion.

After everything that has been done, completelyaccess to the camshaft has opened, which must be pulled out along with the oil seal. Next, to get the oil scraper rings, you should install the spare part in a position where the piston will be at TDC. After pulling out the candle, it is necessary to insert a rod into the hole formed. Failure to do so will cause the valve to fail easily.

Next, use a special tool to compress the springs on the valve and pull out two crackers. You can get them with tweezers. After that, using a special tool, the rings should be pressed out. This completes the dismantling work.

Installation process

Now let's talk about how to properly complete the installation process. This work will consist of several stages:

1. First, remove the springs from the new parts. This must be done very carefully to avoid damage.
2. Next, you need to cover all the elements with engine oil. After that, you can press the engine itself and return the springs to their intended place.

Important: replacement of oil scraper rings is carried out with strict observance of the sequence. The detailed removal process is described above. Be careful that the sides are in the places they should be. Otherwise, it may cause a sharp increase in the amount of oil consumed.

Piston ring decarbonization with car chemicals

For those who prefer to deal with their own car, you need to know what decarbonization isrings. In short, this is the removal of carbon deposits from a part. Unfortunately, not all motorists are positive about this procedure. Some of them consider it a good way to prevent the engine from running, while others consider it inappropriate.

However, let's listen to the experts. They claim that during the decarbonization, excess hardened oil is removed, which contributes to the wear of the valve stem seals. The result of this procedure is a significant increase in the power of the power unit.

Also, in order to avoid coking of piston rings, which may be caused by failed oil scraper parts, it is recommended to carry out this procedure. It will help get rid of carbon deposits, thereby extending the life of the engine for a while.

But to completely solve this problem, it is still necessary to replace the valve stem seals and rings.

Rings for VAZ car engine

In Russia, the most common car brand is VAZ. Therefore, purchasing replacement parts is not a problem. They are widely sold in all specialized stores. During the overhaul of the engine, the main thing is to choose the right compression and oil scraper rings (VAZ is the brand of the engine with which the parts must be combined). Their choice is influenced by the desired end result. For example, to restore the normal operation of the engine, it is enough to install the usual regular rings, but to improve the technical characteristics, preference should be given to molybdenum or chromedetails.