268 ..

MR20DE engine - Nissan Casca

Installing the MR20DE engine timing chain - Nissan Casca

Note: The figure shows the relative arrangement of alignment marks on circuits and on the appropriate asterisks after installing the components.

1. Make sure the crankshaft key is reversed straight up.

2: Arrifier camshaft (release)

4: Tensioner chain tensioner

5: Star Balancing Block

6: Balancing block drive chain

7: Balancing Balance Balancing Chain Tensioner

8: Crankshaft asterisk

10: Arrifer of camshaft (inlet)

Q: Tag of combination (knocked out)

C: crankshaft key (draws straight up)

D: Mark of Combination (Embossed)

E: Alignment mark (orange link)

R. Setting mark (Outdoor groove *)

2. If the timing tensioner guide is removed (from the front cover side), set it into the front cover.

Attention: Make sure that the components are engaged in the sound or perception.

3. Set the crankshaft asterisk (2), the starrel of the balancing unit (3) and the drive chain of the balancing unit (1).

Q: Tag of alignment (orange link)

C: Tag of alignment (Dark Blue link)

Install, aligning the label on all asterisks and on the drive chain of the balancing unit.

If the labels are not combined, slightly check the balancing shaft and align.

ATTENTION: Make sure that the alignment marks on the asterisks did not shift after installing the drive chain of the balancing unit.

4. Secure the balancing shaft for the hex part (19.0 mm) (A) and tighten the sprocket bolt of the balancing unit.

: In front of the engine

Attention:

FixedEvalbalanced block for hexagon part.

Do not weaken the stars bolt of the balancing unit, pulling the drive chain of the balancing unit.

5. Install the balancing block drive chain tensioner (1).

) Stop pin.

Make sure that the staggers on the drive chains of the balancing unit and the asterisks did not shift.

6. Align the labels on each sprocket and the timing chain.

2: Arrifier camshaft (inlet)

3: timing chain

A: Tag of alignment (the link of dark blue)

Q: Tag of combination (knocked out)

C: Software Tag (Outer Gallock *)

D: Alignment label (orange link)

E: Setting mark (knocked out)

* On the periphery of the stars of camshaft inlet valves there are two grooves. Wider is a set of alignment.

If the labels are not combined, slightly turn the camshaft, taking over the hex part, and align.

ATTENTION: Make sure that the alignment marks on the asterisks did not shift after installing the timing chain.

8. Install the timing tensioner (1).

Put the plunger and hold it down with a lock pin (s), set the tensioner.

9. Once again, make sure that the marks of combination on asterisks and the timing chain did not shift.

11. Install the front cover as follows:

a. Insert a new ring seal into the cylinder block.

ATTENTION: Do not allow the ring seal offset.

b. Apply the sealant (c) by a continuous strip using a syringe (suitable specific to the front cover, as shown in the figure.

Use the corporate guinea or equivalent

from. Make sure that the marks on the timing chains and asterisks are still combined. Then set the front cover.

Attention:

Make sure the ring seal is inserted into the cylinder block correctly.

Do not damage the front gland about the front end of the crankshaft.

d. Install the front cover and tighten the fastening bolts of the 8th order specified by the numbers in the figure.

M10: №№6.7, 10, 11, 14

M12: №№2.4, 12

M8: For an exception. indicated above

ATTENTION: The installation should be performed within 5 minutes after applying sealant.

e. After tightening the bolts, pull them up with the desired torque in the order specified in the figure in the figure.

ATTENTION: Remove the surplus of the sealant speaking on the surface.

12. Install the crankshaft pulley as follows:

a. Pressing the crankshaft pulley with a plastic hammer, apply shock on the central portion (not around the circle).

Attention: Install the crankshaft pulley without damaging the edge of the front kettle.

b. Fix the crankshaft pulley (1) by the pulley holder (A) (suitable special to the).

d. Tighten the crankshaft pulley bolt.

: 68.6 N »M (7.0 kg - m)

e. Majorlabledoon-M (OKG-M).

f. Tighten the crankshaft pulley bolt.

: 29.4 N "M (3.0 kg - m)

9. Apply the label of the paint (c) on the crankshaft pulley (2) opposite any of the six angular labels (a) on the flange (1) of the crankshaft pulley bolt.

Control the tightening angle over the angular tags.

i. Turn the crankshaft pulley clockwise by hand and make sure that it rotates freely.

13. After this operation, the installation is performed in the order, arr. Removal.

Check after installation

Check after installation

Check leaky

Before starting the engine, check the oil / liquid level, including the engine cooling fluid and engine oil. If the level is below the norm, the result and bring to the required level. See chapter Maintenance.

Check if there are fuel leaks as follows:

Turn the ignition key to the "ON" position (not starting the engine). By creating pressure in the fuel lines, check whether there are no fuel leaks at the joints.

Run the engine. Increasing engine speed, check again, is there any fuel leaks at the joints of the fuel lines.

Let the engine and check if there is no unusual noise or vibration.

Note: If the hydraulic pressure inside the timing tensioner drops after removal / installation, as a result of sagging in the guide, a deaf knock may occur when the engine is started and immediately after it. However, this does not indicate a malfunction. The knock will stop after the hydraulic pressure.

Well warm the engine and make sure that there are no leaks of fuel or oil / liquids, including the engine cooling fluid and engine oil.

Release air from tubes and hoses of relevant systems, such as cooling systems.

After the engine is cooled, check the oil / liquid level, including the engine cooling fluid and engine oil. If necessary, the fraction and bring to the required level.

Table checks

Component

Before starting the engine

Functional design belt timing

Replacing the timing belt is part of the scheduled maintenance of the Nissan Qashqai car and plays an important role in the engine of the vehicle. The late replacement of the belt can lead to a failure in the operation of the motor, and the breakdown to the deformation of the valve of the gas distribution mechanism and the need for overhaul engine repair.

All parts of the gas distribution mechanism are closely related to each other, the injection of the air-fuel mixture leads to a movement of the engine cylinder, which, in turn, pushes a crankshaft, knitted with a camshaft drive. Thus, the camshaft movement occurs, which adjusts the frequency of the valve movement. The timing belt Nissan Qashqai binds the gears among themselves and transmits torque from the crankshaft to the distribution, affecting the speed of its rotation. With the service life, the frequency of their revolutions should be equal to.

Types of timing belt

1. Wearing a timing belt leads to a change in the force of transmission of torque from the crankshaft to the distribution, as a result, the frequency of movement of the pistons and engine valves is changed. This in turn leads to a failure in the work of the gas distribution system, rapidly heating the engine and as a result, reducing the power of the motor and the increase in the consumption of the fuel mixture. For reliable and uninterrupted operation of the motor, it is necessary that the valves are closed and opened in one frequency with the pistons of the engine. If due to wear, the timing belt arises, it can cause cliff.
2. Screw the timing belt Nissan Qashqai - is the most dangerous damage for the engine. In the event of such a malfunction, the camshaft stops being associated with the crankshaft and may stop completely arbitrarily in such a position, in which any of the valves of the gas distribution mechanism will be opened. In this case, the piston, moving up, can encounter the valve, which will lead to its deformation. In this case, the car engine faces serious repairs. It should be noted that the scope of the timing belt does not occur unexpectedly, it is almost always accompanied by changes in the engine of the car engine, a decrease in its power, changing the consumption of gasoline, the emergence of foreign pisc, creak, etc.

To prevent and prevent the operation of the gas distribution mechanism, it is necessary to periodically replace the timing belt, it will retain the motor of the Nissan Qashqai vehicle from breakage, warning the premature engine wear and will increase its life.

Causes and assessment of belt wear

Timing belt wear occurs for a number of reasons, avoiding which you can extend the service life of the car engine.

To prevent the complete wear of the timing belt, it is necessary to periodically, with visual inspection of the gas distribution mechanism, check the presence of damage on the belt surface. To inspect and evaluate the belt drive, you must unscrew and remove the protective mechanism cover under which the engine is hidden. The first signs of wear is:

• the appearance of oil and antifreeze inclusions capable of chemical method to destroy the timing belt, with prolonged exposure;
• the occurrence of longitudinal cracks on the rear surface of the belt;
• the formation of transverse cracks on the inner surface of the drive belt;
• the defective surface and the impaired integrity of the region is also a sign of wear;
• the belt is also evidenced by rubber dust on the surface of the part;
• if the timing belt teeth began to flap, or stitched, the item is subject to immediate replacement to a new one.

Signs of timing belt fault

1. Increased consumption of gasoline by car
2. The engine power decreased
3. Full stop of the car on the go, when trying to start the motor does not start, and the starter rotates easier than the usual
4. Unstable engine work at idle and in motion;
5. The emergence of shots in the injector and exhaust pipe

All these malfunctions may indicate the shifting of the phases of the gas distribution and weakening of the belt tension. If on your car Nissan Qashqai you noticed one or more signs and this list - immediately contact a hundred, for inspection.

How often it is necessary to replace the timing belt Nissan Qashqai

The frequency of replacement of any consumables for cars depends on the style of driving and vehicle operating mode. With an extreme style driving and aggressive use of the vehicle, it is necessary to replace the timing belt, as it is worn and erasing the teeth.

Under normal operating conditions, it is necessary to replace the original timing belt in scheduled mode, every 60 - 70,000 km. Run. During this period, it produces its resource and comes in disrepair. If an analog belt is installed on your Nissan Qashqai car, the replacement must be made a little earlier than the deadline recommended by the vehicle manufacturer.

What timing belt is better to choose

Modern belts for the gas distribution system are a high-tech product that is characterized by increased strength and wear resistance capable of withstanding high dynamic loads. The timing belts are made of neoprene or polychlorprene with the amplification of sturdy cord fiberglass, nylon and cotton.

1. To avoid the error related to the purchase of the timing belt, refer to the specialists who will help the Win Code of your car to order the timing belt, suitable for the engine of your car. This item is one of the most important in the design of the motor, the slightest deviation in length, width, form and size of teeth can lead to problems in the engine of the Nissan Qashqai machine.
2. Do not try to save when buying a timing belt, a cheap product can be a poor-quality fake, which will quickly come into disrepair and in the future can cause serious engine breakdown. The best option for any car is the original parts, the cost of them is higher than the analog, but during the operation of the car, they quickly pay off.
3. When buying a timing belt, check it on the rigidity, a good belt must be elastic and easily bent. The worse the belt, the more harsh it will be.
4. It is not allowed on the belt of the teeth, the pores, pores are signs of a poor-quality belt, which will quickly come into disrepair. The surface of the product should be smooth, small burrs are allowed.
5. With an independent purchase, check the timeline articula of the timing belt, applied on the back side, it must match the Win Code of the Car. If there is no possibility to compare the belt code and the car, it is necessary to make a visual comparison of the old and new belt, they must be completely identical.
6. To avoid buying fakes, try to acquire spare parts only from official, proven dealers.
7. Do not save on a qualified replacement of the timing belt, contact our certified car service, where competent mechanics will help with the repair of the Nissan Qashqai car. And in the store of spare parts you can buy original spare parts for your car.

The timing chain ensures the rotation of the motor shafts, due to which the air is mixed with the fuel in the desired proportion and falls into the power unit of the car, and the exhaust gases are removed from it. The operation of the gas distribution mechanism directly affects the operational performance of the motor operation, therefore it is necessary to carefully monitor and when the slightest signs of malfunction are detected. When the chain or belt of the gas distribution mechanism is torn, the costly repair of the car is inevitable.

Features of the chain mechanism device on Nissan Qashqai

Timing on Nissan Kashkai with 1.5 and 2.0 l engines, as well as on other chain type gasoline units, while the system of the gas distribution mechanism of Nissan Cascais 1.6 L, which uses diesel as fuel, has a timing belt.

Replacing the Nissan Qashqai 2.0 L, 1.2 L mechanism chain, 1.5 liters should be carried out according to the regulations every 150-200 thousand km of run, and the belt on diesel glands 1.6 l should be changed through the same time interval.

The chain mechanism is more reliable and durable, compared to the belt, and, as a rule, it is necessary to change it less frequently than is usually indicated in the manual. In most cases, it effectively performs its functions and after 150 thousand km and maybe without complaints, it is up to 250-300 thousand km of run.

However, in contrast to the belt, the chain system contributes to a higher level of noise during the operation of the motor, and also differs in more complex operations when changing this item.

How to replace the chain of the mechanism

When working with the timing chain on Nissan Cascalar 2l or other gasoline engines performed by their own hands, you need to comply with such a sequence of actions:

Nissan Qashqai is equipped with HR16DE (1.6), MR20DE (2.0) gasoline engines (2.0) and M9R diesel units (2.0), K9K (1.5). On gasoline engines, regardless of the type of motor, the camshaft movement is driven by a chain drive. On diesel engines, the timing chain is only on M9R (2.0).

According to the technical passport of Casca, the procedure for replacing the timing chain. How to cope with the replacement of the chain with your own hands, see the photo report.

How much is and what chain to put

On Qashqai with a motor (1.6), the production article of 130281kc0a is installed. The timing chains closest on the identity will be from manufacturers of Pullman 3120A80X10 and CGA 2Cha110RA.

Rates for this products range from 1500 to 1900 rubles. On Kashakai with the engine volume 2.0, there will be a chain with a catalog number Nissan 13028CK80A. ASPARTS ASP2253 timing chains are also suitable for alternative replacement, the price of 1490 rubles or Ruei Ruei2253, worth 1480 rubles.

Instructions for replacing the timing chain do it yourself

For work on replacing the timing chain on Nissan Casca need:

• ratchet with extension;
• end heads "on 6", "on 8", "on 10", "at 13", "on 16", "at 19";
• screwdriver flat;
• new timing chain;
• sealant;
• kV10111100 device;
• demand KV111030000;
• jack
• gloves;
• capacity for draining engine oil;
• specialty for pulley crankshaft;
• looking pit or lift.

How to change:

1. Install the car to the observation pit.
2. Remove the right wheel.
3. We unscrew and take out the motor's casing.
4. We dismantle the exhaust manifold.
5. Plums Motor oil from the aggregate.
6. We unscrew and take out the cover of the GBC.
7. We turn the crankshaft and exhibit the piston of the first cylinder to the NMT position when compressed.
8. We subdominate the engine and remove and unscrew the right support engine suspension.
9. We dismantle the generator belt.
10. With the help of special tools, we hold the pulley from turning, unscrew the crankshaft pulley mounting bolts by 10-15 mm.
11. By installing the KV111030000 removal, spress the pulley from the crankshaft.
12. Fully unscrewing the boting of pulley and take a roller from the crankshaft.
13. We unscrew and remove the hinged belt tensioner.
14. Disconnect the wiring harness connector from the valve of the changing phase of gas distribution
15. Soak fastening bolt and remove the electromagnetic valve.
16. Using a ratchet and head under the bolts "on 22", "on 16", "at 13", "at 10", "on 8". Multiprify the fastening bolts in the sequence specified in the photo 13.
17. With a knife, cut the seal seals and disconnect the lid.
18. Inserting a 1.5 mm diameter in the hole in the hole, press the tensioner and fix it.
19. We unscrew the upper bolt with a sleeve, the upper mounting of the guide chain and remove the guide.
20. In the same way, dismantle the other guide chains.
21. Remove the timing chain first from the crankshaft stars, then from the pulleys of intake and exhaust valves.
22. If necessary, dismantle the tensioner fastening.
23. We establish a new timing chain in the order of reverse removal, aligning tags on the chain and on the pulleys.
24. Clean the joints on the cylinder block and the timing cover from the old sealant.
25. We apply a new sealant with a thickness of 3.4-4.4 mm.
26. We put the timing cover and tighten the bolts shown in the photo 20, with this effort (torque torque):
    • bolts of fastening 2,4,6,8,12 - 75n · m;
    • fastening bolts 6,7,10,11,14 - 55 N · m;
    • bolts of mounting 3,5,9,13,15,16,17,18,19,20,21,22 - 25.5 N · m
27. The remaining details are collecting in order to remove.

We carry out the replacement of the timing chain by car Nissan Casca. And to gain access to the crankshaft pulley, remove the front wheel. And such a procedure requires draining of engine oil, therefore at the same time and unscrew the plug hole in the engine crankcase (substituting the suitable volume).

Remove the front right wheels sneakers.

We unscrew the engine cushion fastening bolts (pre-subdomain or joining the engine).

Remove the engine pillow.

We unscrew the nut on 13 roller of the tensioner of the drive belt of attached units ...

... Also unscrew the central tensioner bolt, it is located from the end of the roller under the generator. Then remove the belt on the tensioner drive.

Remove the intake manifold and the valve cover.

Then remove the crankshaft pulley, for this you need to fix the pulley by the holder, then weaken the pulley bolt so that it moves away from the source position.

We turn over the bolts to remove the pump.

... turn away the lower bolt and take the pump. Such long preludes allow you to access the engine covering bolts of the side cover, which closes the timing chain.

Soak fastening bolts in the sequence specified in Fig. Using a ratchet and head under the bolts "on 22", "on 16", "at 13", "on 10", "on 8".

We unscrew the side cover and remove it.

We look at the labels, they are located opposite the dark links.

The lion's share of machines on the "secondary" make up 5-seater "cats" - the participants of the Internet forums are clicked as gentle by their pets. And if you want to search, you can even meet "Casca + 2", which, at the expense of the elongated base and seats, in the trunk allows you to take on board additional passengers (small, truth, growth) or a couple of extra suitcases.

The choice of engines is small: there are only two of them. Basic "Casca" with a 1.6 liter motor has a drive-driven wheel and until recently equipped with an exclusively manual box. The two-liter modification with a 140-strong unit is released both with front and connected full drive. In addition, two liters assumed the choice between "mechanics" and the variator.

The configuration of "Kashka", like all other "Nissans", is strictly fixed. Air conditioning, electric car, ABS and 6 airbags are made by any version, and even such charms can be detected in the top, like a leather interior, panoramic roof, xenon headlights and navigation.

The plug of prices for a three-year-old car extends in the range from 550 to 850 thousand rubles. If you relate these figures with prices for new cars in 2009, it turns out that "Casca" fell in total by 15-20% for three years - that is, "Nissan" turns out to be very liquid, which cannot but rejoice.

Body and electrical equipment

Small troubles

Buying a three-year-old "Cascai", you can not worry about the quality of the body. Even on the very first copies that stepped on our land five years ago, to detect rust will not be able to - exception are only cars visiting accidents. The layer of paint reliably covers the metal from the aggressive external environment.

In some cases, drivers note that he starts tapping lid trunk.. Such a nuisance is observed both on ordinary and extended version. This illness is treated with simple adjustment, but we advise not to pull this procedure: if the door does not adjust on time, it can damage lock. From the other trifles it is worth noting skyrplay pedal brakeswhich is solved with a simple lubricant - this is generally a spear problem.

By electrician special hassle in the second owner should not be. All troubles, as a rule, provokes optional equipmentwhich is installed on the "gray" car services not too qualified masters.

Transmission

Do not bounce!

With proper and competent operation, the transmission "Kashka" does not cause any problems. Clutch In general, reliably: the average service life on machines with "mechanics" is usually 100,000-150,000 km. It is possible to kill it before, only if the slip is constantly abused - it is characteristic of inexperienced drivers. In the theory, changing the burnt clutch can be individually - a box, basket and frosting bearing - but in practice the dealers change the node assembly.

Variable speed drive Also keeps well, and if it is not necessary for strength, furrowing mud, it will last 200,000 km and more. But replacing it, it happens that, flies into a penny: a new unit costs more than 200 thousand rubles. So take care of the transmissision smolod.

Engine

Long-livers

About the motors representatives of the company service can not say anything bad. And a 1.6-liter power unit, and its more powerful colleague can be called long-lived. The very first "Casca" sold in our country have already managed to run more than 200,000 km, avoiding any serious problems. Here it is necessary to pay tribute to dealers, which are extremely reverent about the passage of maintenance. They do not allow customers pouring their oil and bring the spare parts purchased on the side - even the original. Recently tightened the term of mandatory replacement of the candle. If earlier they were forcibly changed every 30,000 km, now the time has reduced to 15,000 - that is, on each, regardless of the state.

Valve train chain Change not by regulations, but as of the state: the need for replacement happens to 150,000 km. Drive belt Hinged equipment requires replacement on average once every 100,000 km.

From small troubles that are waiting for owners of the 1,6-liter motor, it is worth noting whistle generator belt. This is due to the reagents on it, which will sprinkle the streets in winter.

Considering the proposals when searching for a suitable "couch", you can find cars with diesel engines The volume of 1.5 or 2 liters, and everything is exclusively on the "mechanics". They came to us from Europe and officially never sold in Russia. About the reliability of these motors mechanics can not say anything definite, since diesel modifications are extremely rarely visiting the official service. Many of these "Kashkas" are also sold with twisted mileage, so we advise you to avoid similar options.

Chassis and steering

Change - so completely

It may seem that "Kashka" has no chronic diseases. However, this, alas, is not like this: a spoon of tar in a barrel of honey is still present.

The problem of "Kashka" was the suspension. Shock absorbers Rarely live longer than 30,000 km, and their information is not too dependent on operating conditions. Therefore, since 2009, "Casca" began to establish the details from "Iks-Trail". Now the shock absorbers serve much longer and can be left without replacement of 75,000-100,000 km. But only the front-rear still has to refresh every 35,000-50,000. The problem is weak buslesthat do not change separately, only assembled with the shock absorber.

Reliability does not shine and steering Reika. In the first years there was even an revocable campaign. And although the stated service life of the node is already 350,000 km, there are already 100,000 km on many rail machines. The main problem is in the steering traction. The first ambulance symptom is a step in the steering. Technically change the thrust separately from the rail, it is possible, but "Nissan" prescribes to change the entire assembly assembly.

Pads The middle on average walks 30,000 km, and the rear - 45,000-60,000. Brake discs, like many other cars, serve twice the longer pads.

We buy?

Apart from individual troubles that can deliver the suspension and the variator, there are no serious flaws from the car. But if you want to continue to drive not knowing problems, we recommend servicing the car from official dealers and after the end of the warranty. Yes, you will have to put up with not always reasonable replacements of consumables, but for a quiet life, as you know, you have to pay. In addition, official dealers offer a 30% discount on the repair of non-warrant cars.