As a rule, piston rings must be changed depending on the mileage of the vehicle. In fact, this procedure depends on the quality of the oil poured into the engine, its timely replacement and so on. However, today, the cost of such works for a hundred unreasonably overestimated, and paying repairing on the service, you do not always have a certain one hundred percent that the work is done really qualitatively. This is exactly what forces many drivers, even those who have never been repaired before, producing these operations on their own. Our article will make practical help for drivers who decided to replace the piston rings of the motor on their own.

Set of piston rings

When replacing the piston rings, first of all, it is necessary to purchase a new set of piston rings. When buying, you should definitely pay attention to the rings themselves and on the appearance of the packaging. Usually, the quality product should look attractive, be competently painted and do not imply any flashes. The marking must be observed with accuracy and indicate the bottom and top of the ring, and the packaging must be directly framed, with an excellent design. When buying poor-quality rings, the entire replacement procedure will be useless.

Types of piston rings

Piston rings are open rings with a minimal gap, which is mounted in a special piston planting groove. First, the piston rings in the internal combustion engines were made from the ductile cast iron, because it combined with the cast-iron cylinder block. With the help of its porous structure, the lubricant on the forged cast iron was well held out, which further reduced wear. Then they began to produce rings from plastic cast iron. Such rings, besides all the advantages of the previous species, are distinguished by the presence of elastic deformation, which has a positive effect during their installation in the cylinder block sleeve.

There are also piston rings from chromium, molybdenum and stainless steel. However, they are all actually applied together with the cast-iron base or other metals. Today, molybdenum rings are widely used due to their reliability and durability.

Piston rings are two types - oil surfactant and compression.

compression rings

In fact, compression rings are a kind of barrier for gases between the crankcase and the combustion chamber. The ring in the free state has dimensions that exceed the inner diameter of the cylinder. To set the ring inside the cylinder, make a cut, which is called the lock.

The upper compression ring is able to differ from the lower. Its surface can be inclined or in contact with the bottom or top with the cylinder. As a rule, the compression ring is flat or twisted with L - shaped department. This department, depending on the pressure in the cylinder, makes it possible to change the force that is applied to the cylinder walls. As a result, you can achieve the maximum efficiency of the motor. The second compression ring is an additional seal, after the top oilmage. In addition, it plays the role of an assistant to the oil-chain rings - scraps from the cylinder excess oil and prevents the detonation of the motor.

masonry rings

The oil rings remove the excess lubricant from the cylinder, and also prevent its burning into the combustion chamber. As a rule, they are mounted below the compression rings, however, they are distinguished by the presence of end-to-end slopes. The operation of the internal combustion motor is completely and completely depends on the state of the oilmaging and compression rings. Over time, the materials and design of piston rings change, but the appointment remains unchanged.

Replacing piston rings, step-by-step instructions

Most novice motorists fear to replace the piston rings on their own, as it is necessary to remove the motor.

In addition, the procedure itself, at first glance, is complex and requires highly specialized knowledge and skills.

However, it is not. Replace the rings on new may well, and one person who does not particularly know all the specifics. In most cases, you do not even need to remove the engine, it will be enough to arma with certain tools.

tools assistants

1. Hex keys.
2. Crimple for rings, which can be made with your own hands.
3. Dynamometric key.
4. A set of keys.
5. Set of heads with a rattling.
6. Set of piston rings.

remove piston rings

1. With a battery remove a positive terminal.
2. Tosol merge.
3. We remove the decorative lining of the motor, for which we unscrew the four nuts.
4. Remove the intake manifold, for which it is necessary to display the throttle drive cable. Next, we disconnect the throttle assembly itself, dismantle the ignition coil, after which all the armor guns. Remove all hoses that are located at the top of the collector. Weakening the clamp that connect the lower nozzles with the upper. It is very important to remember or record the process of disconnecting the hoses, so that it would not be confused when assembling.
5. We dismantle the valve cover, twisting all the bolts and disconnect all the hoses.
6. Remove with motor attachments.
7. I carry the fuel hoses and disconnect the contact, which goes to the fan power sensor.
8. We unscrew two bolts, which fix the thermostat. We remove either we move all the hoses.
9. We dismantle the generator roller.
10. Remove the timing belt cover.
11. We dismantle the tension roller of this belt. Remove the camshaft belt. Carefully, do not lose the knaps. We dismantle the second part of plastic casing. That in the process of work the camshaft did not scroll, fix it with a fine montage.
12. We dismantle the casing of the exhaust manifold and the collector itself.
13. From all engine sensors, remove the connectors.
14. Let us dismantle the harness of the wires, which goes on the nozzles.
15. Now remove the GBC, for which you unscrew ten bolts in the desired order.
16. Remove the pallet.
17. We turn the crankshaft, which would be the necessary piston in the lower dead point.
18. We dismantle the connecting rod, after which they push the pistons of all cylinders upstairs.

installing piston rings

1. We believes from the pistons of the Nagar.
2. After removing the old rings, mount the new ones.
3. First install the oil surcharge ring.
4. Be sure to tighten the rings with a special mandrel.
5. Collect all the details back.

Tips for the experienced motorist

After replacing the piston rings, make sure how to work and check the internal state of the unit.