Replacement of the car air conditioner compressor bearing

Almost all modern cars are equipped with climate control or at least air conditioning. And it concerns even such budgetary brands as "Lanos" and "Renault Logan". Often, car owners do not know how to maintain air conditioning and drive "while it works." However, this system requires proper attention. Otherwise, you will need expensive repairs. In order not to bring the car to this state, it needs a replacement of consumables. And today we will consider how the bearing of the air conditioning compressor is being replaced ("Cheri Amulet" including).

What is it

This element represents part of the car air conditioner. It differs in its design by the presence of seals and thin walls. In addition, this element is of two types - radial-thrust and double-row. Both types are designed to work at high speeds. This type of construction is excellent for car air conditioners and thanks to the built-in seals it is well protected against the negative effects of external factors (salts, water and dirt).

Why it breaks down

Why is it necessary to replace the air conditioning compressor clutch bearing if it is well protected from the outside environment and designed for high speed? This element wears out due to the influence of the lubricant, which eventually dries up and thickens. Because of this, the bearing balls begin to bask and destroy the separator, because of which the mechanism simply klitsit. If the car is more than 10 years old, this is an occasion to think about whether replacement of the air conditioning compressor bearing is necessary. "Nexia", equipped with such a system, may require repairs and much earlier, if the belt was not stretched. If it is pulled, the part will quickly fail.

Symptoms

How can I tell if the car needs to replace the air conditioning compressor bearing? "Lanos" SE and other cars, which are equipped with air conditioning, are diagnosed without special tools. A characteristic sign of wear of any bearing is a sound, a rumble. In our case, this loud rustle is the friction of the metal parts. This bearing is located in the vicinity of the coupling (on the right side of the engine, at the bottom). At first, you will hear a slight rustle (sometimes disappeared), which you may not notice. But over time the situation will intensify. The bearing will buzz more and more.

Do not ignore the problem

Replacement of the pulley bearing of the air conditioning compressor should be done at an early stage of failure detection. With prolonged use, the worn out part may become skewed. In doing so, it will affect the electromagnetic clutch of the system. As a result, you will not only need to replace the air conditioning compressor bearing. "Nissan Premiere", equipped with this system, may require additional filling of a new Freon.

How to replace?

First we need to remove the compressor. This is done on a jacked-up car. It is better if the car will stand on a pit or overpass. If it is not available, tear off the bolts, jack in front of the car on the side of attaching the compressor and dismantle the wheel. Also, in order to avoid falling of the car, it is necessary to put a spare wheel under the spar. Then unscrew the fixing bolts of the compressor - there are four of them. If access to it is obstructed by the generator, it must also be removed (we first disconnect both battery terminals). Then unscrew the clutch pressure plate bolt and remove it from the outside. On some cars it will be necessary at the same time to remove Freon.

How to remove freon?

To do this, you need to unscrew the rubber hose clip of the compressor. They twist very smoothly. Remember that Freon comes out under pressure.

We continue to replace

So, after the successful dismantling of the pulley should be taken out the bearing. The latter is attached with a locking ring. If it is flared, then for dismantling we need a hammer and chisel. Next, you need to press out the old bearing. To do this, use a special puller. If there is none, you can use the old clip from the bearing. Remember that when extruding the part can be damaged, if you strongly press on the outer part of the pulley. After removing the old part, the bearing of the air conditioning compressor is replaced. "Renault Logan" and its clutch are more sensitive to mechanical shocks, so the pressing of the element is done with a screw or hydraulic press. Further, when the part has come to its place, set the locking element back and perform the assembly in the reverse order.

What should I look for?

If the air conditioning compressor clutch bearing is being replaced, special attention must be paid to the timing and sequence of tightening of all fastening bolts. Otherwise, the item may crack. As for freon, which we removed, the subsequent refueling is performed only by the type of composition that is indicated on the compressor. When dismantling the latter, it is necessary to ensure the tightness of all output and inlet openings. The slightest ingress of moisture can cause a breakdown, and then it will be necessary not only to replace the air conditioning compressor bearing, but to repair the entire system. It is important to achieve maximum tightness of not only the removed element, but also suitable pipelines. The presence of moisture quickly disables the compressor. Also, before refueling, specialists recommend vacuuming the system.

How to replace if there is no press?

We note at once that this method should be used as a last resort. If there is an opportunity to apply a press (for a neighbor in the garage, for example), do not be lazy and ask him for help. So, we need to fix the compressor clutch. To do this, you can use the native balloon key (which we unscrewed the wheel) or a puller for the discs of the Bulgarian. After unscrewing the nut, use a screwdriver to drive the disc. Next, remove the snap ring. After that, we need a puller. It will serve as a head for 30 millimeters. We turn the coupling and look for a bearing with a notch around the edges (this is necessary so that the mechanism does not fly out of the seat). Then, with the help of a hammer, gently tap on the head - the part will start to go quietly out.

In order not to bend the coupling at the time when the air conditioning compressor bearing is being replaced, it is recommended to put a flat piece of wood or thick cardboard under it. Next, we clean the seat with a piece of rag. If there is rust, carefully clean it. For this, a rust converter is used (along with a "vedeshka" - a thing very necessary in the garage). In the absence of such a fine-grained sandpaper can be used. Then lubricate the seat and proceed to press the new bearing. To do this, we need an old element - we apply it to a new and light hammer blows to make the pressing. In order not to damage the element, it is recommended to perform strokes in a circle. Then we do notches and collect the part in the reverse order. At this, the replacement of the air conditioning compressor bearing by oneself has been successfully completed. After assembly, it is important to check the noise of the element. The new part should work quietly. The slightest noise and rustle indicate the incorrect implementation of the replacement technology. Or else it's a factory marriage.

Bearing Repair

Although this element is "one-off", some motorists prefer to repair it. After removing the pulley, remove the plastic protective cover from the part. Next, we need any solvent (this can be medical alcohol, gasoline, anti-silicone or white spirit), as well as a brush. We moisten the composition and remove the old woman, the dried lubricant. Next, we take any high-temperature grease, intended for bearings, and press it instead of the old one. Install the plastic cover in place. The main advantage of performing repairs is that there is no need to press in and out, which requires special tools. However, repairs will be effective only if the bearing is not very buzzing. With characteristic rustle, this action will not save, since the output in the bearing is already beyond the limits of the norm.

Cost and Manufacturers

To date, there are several leading manufacturers:

• KOYO (Japan).
• SNR (France).
• NSK (Japan).
• NTN (Japan).

The average cost of these elements is from one to two thousand rubles, depending on the size. Used on cars of Japanese, German, American and French production.

Conclusion

So, we found out how the bearing of the air conditioning compressor is being replaced. It is worth noting that many drivers prefer to use the service station in this case. And for that there are reasons. First, there is a special press. And secondly - the need to refuel freon, which is produced at home certainly will not work.