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Nissan Note. Engine valve train noise

Increased clearances in the valve mechanism, clearances due to malfunction of valve pushers or wear of valve mechanism elements	Replace hydraulic lash adjusters and worn valve train parts
Damage to the timing belt or chain	Replace timing belt or chain
Incorrect timing belt or chain tension	Check the tension of the timing belt or chain. If necessary, replace the timing belt or chain

Valve knocking in the engine: causes and troubleshooting

No matter how reliable the car is, the time comes when you are forced to go to a service station to diagnose and repair faults. At the same time, most of the breakdowns can be fixed with your own hands, but there are also those that only professionals can help fix. Valve knocking is a common problem, which in terms of difficulty of elimination is somewhere in the middle. In some cases, it is possible to identify the malfunction and make repairs on your own, while in others you have to turn to a specialist for help.

How to diagnose a knock

Without sufficient experience, car owners sometimes find it difficult to determine the problem by ear. This is not surprising, because the source of extraneous noise can be anything - the crankshaft, bearings, faulty belt and valves. But unlike other sounds, the knocking of valves reveals itself with a characteristic sonority, with a certain metallic tapping, near the gas distribution mechanism. In addition, unusual noise occurs regardless of engine speed.

In practice, it is not difficult to recognize that valves are knocking, but even experienced car owners sometimes fail to diagnose their malfunction. But to confirm or refute suspicions, you can make a diagnosis yourself. For this:

Lift the hood, then unscrew the cap from the engine filler hole (through which the oil flows).
-Listen to the engine. If the sound volume increases, the valves are causing the problem.
-Place a stethoscope near the part that you suspect is faulty. Using this device, you can accurately determine the cause of extraneous noise.

Causes of knocking

Valve knocking can be caused by many reasons, each of which deserves special attention. Please note that all cars are equipped with a camshaft (at the top of the engine), and the operation of the valves is ensured by the elements of this unit - rods or otherwise called pushers.

So why do valves knock? Let's highlight the main reasons:

Changing the gap between valves and pushers. When releasing the car, the distance between the rods and valves is precisely adjusted. If the parameter deviates from the norm (decrease or increase), a “metallic” tapping sound appears.
-Refueling the car with low-quality fuel. If bad fuel is used, engine detonation occurs, which causes the valves to suffer.
-Lack of oil pressure during acceleration. There are situations when valve knocking appears only when driving at high speed or during acceleration. The reason is insufficient pressure in the engine lubrication system to increase speed.
- Incorrect installation or misaligned position of the timing belt (how to set marks and tension the timing belt).
-Natural wear and tear. If the valves on your car are knocking, this often indicates that the part is simply worn out and needs to be replaced.

Why does valve knocking occur on a cold engine?

When checking, pay attention to one of the main parameters - engine temperature. There are situations when an extraneous sound appears only on a cold or hot engine. If you “link” valve knock to this parameter, you can draw additional conclusions. So, if an extraneous sound appears only on a cold engine, then the reasons are as follows:

Narrowing of the valves. It is no secret that when heated, metal tends to increase in volume, and when cooled, it tends to decrease. For this reason, the distance between the valves (on a cold engine) may be small, and after the engine reaches operating temperature, it returns to the factory setting.
Motor wear. The second reason why valves knock is wear and tear on the engine itself.
It turns out that the gap between the valves and rods does not correspond to the parameter set at the factory, but this only appears on a cold engine. Once the engine warms up, the problem disappears.

Why do valves knock on a hot engine?

If the problem continues to manifest itself after warming up, the reasons may be the following:

Lack of oil in the tank.
- Oil filter dirty.
-Insufficient tightening of the bolts securing the camshaft to the bed.

In addition, extraneous sound can be caused not only by the knocking of valves, but also by hydraulic compensators.

How to adjust valve clearances

The easiest and fastest solution to the problem is to go to a service station and entrust the removal of extraneous sounds to professionals. But, unfortunately, financial resources do not always allow such luxury, and you have to solve problems yourself. There may be other situations when the car owner is interested in tinkering with the car and personally gaining experience in repairs.

If you discover that your engine is experiencing valve knocking and decide to fix the problem yourself, be prepared for some serious work. All it takes is one mistake and the sound will become even louder. That is why a novice car owner should not undertake the task of eliminating knocking. It is important to clearly know the sequence of actions and follow it. To avoid mistakes, read the car repair instructions. A brief algorithm is given below:

Drain the engine oil.
-Remove the cylinder head plug. This is necessary to gain access to the valves.
-Rotate the camshaft so that the mark mounted on the pulley aligns with the installation lug.
- Determine the gap between the valves and rods by touch. At the same time, change the distance using the adjusting washer.
-Twist the washer a certain number of times (here everything depends on the make and modification of the car).
-Return all the parts, then check whether the knocking of the valves has been eliminated or not.

If, after the work has been carried out, the problem has not been resolved, go to a service station and give the car to the experts. In such a situation, it is unlikely that you will be able to adjust the gap yourself. There are situations when the cause of extraneous noise is other breakdowns. But we cannot exclude the possibility that the previous adjustment was performed incorrectly.

Replacing the timing chain drive on Nissan gasoline engines

The timing chain drive is installed on many modern Nissan engines. Video of replacing the belt on a 2013 Almera g15, replacing the alternator belt on an Almera, how to replace the accessory belt, alternator belt on a Nissan Almera. Unlike a timing belt, a chain has at least twice the lifespan, which is why chain engines are reliable and popular.

Replacing a Nissan chain is usually required after a mileage of 200 thousand km; the degree of wear of parts can be judged by various signs. In this article we will look at what aspects are used to determine worn parts and by what principle the timing chain changes on various models of cars produced by this Japanese concern.

Advantages and disadvantages of the chain mechanism

The chain drive on Nissan cars has its advantages and disadvantages. Timing chain replacement for Nissan note 1.4. Prices for Nissan hubs Nissan Note Note 1.4. Replacing a stud on a Nissan Tiida hub, how to change a Nissan Tiida bumper, how to remove it. The most important advantage is the long service life of such a mechanism; you don’t have to look into the timing drive until noise appears; there are motors that have lasted up to 500 thousand km without replacing the chain.

The first sign of a malfunction in the gas distribution mechanism is the appearance of a corresponding sound that resembles the operation of a diesel engine. The reason for the deficiency may not necessarily be the chain itself; the tensioner often fails, and the dampers wear out. But the fact that the engine started working like a diesel engine is also an advantage - the driver cannot help but notice the noise that appears and will certainly take measures to eliminate it. Nissan note electrical tape raccoon › logbook › chain replacement oil only Nissan, 1.4 chain. The timing belt always breaks suddenly, and because of it, the valves in the cylinder head are often bent, which leads to quite huge financial and labor costs.

The disadvantages of a chain drive include:

excessive noise during operation even with a working mechanism;
more difficult to replace, unlike the timing belt;
relatively high prices for spare parts.

Nissan timing chain replacement

Typically, chain gasoline engines manufactured by Nissan have four valves per cylinder, two camshafts installed in the cylinder head. Quick oil change in an automatic transmission of a Nissan laptop in Moscow, autopilot technical center, we work without prepayment and at a fair price!. In order to change the chain, it is necessary to disassemble the entire front part of the internal combustion engine, to do this remove:

generator (air conditioning) belt;
crankshaft pulley;
valve cover;
front engine cover;
camshaft sprockets;
as needed, motor mounting bracket (support);
engine sump (crankcase).

Depending on the engine model, the disassembly procedure may vary; the labor cost of replacing a Nissan timing chain depends on the complexity of the engine design; for example, doing the work on a Nissan Maxima model will be much more difficult than on an Almera. Home › blog › replacing the xiaomi redmi note 4 screen (replace the glass screen with redmi 4. It should also be taken into account that on many Nissan engines (for example, GA 16) two circuits are installed;

Nissan chain replacement Sunny

The Nissan Sunny car was produced by the Japanese concern in different bodies; the more famous generations of the Sunny are the N14 (produced years 1990-95), N15 (1995-2000) and N16 (2000-2006). The most common are engines with volumes of 1400, 1500, 1600 and 1800 cm³, models GA14, GA16, QG15DE, QG18DD.

All engines on Sunny cars are four-cylinder and have transverse placement. Replacing a Nissan Sunny chain is not difficult, and you can do the job yourself. Replacing low beam lamps and headlights on a Nissan Almera. The only fundamental condition is that the marks of the camshafts and crankshaft must be correctly aligned. The work can be completed in a few hours, at most it will take one working day, but it is better not to rush and do everything carefully.

The condition of the gas distribution mechanism is judged by the upper tensioner - if the cylinder of the tensioner has already come out too far, it means that the chain is stretched and must be replaced.

Replacing the timing chain on a Nissan Tiida. Replace the timing chain on the Nissan Tiida

Chain replacement and pumps on Nissan Tiida car has undergone 200 thousand km optimization (not necessarily to read) chain,.

Nissan engine for Note (E11) 2006-2013;Micra (K12E) 2002 after

Sale of used engine. Replacing front brake pads and front brake discs for Renault Logan, Lada Largus, Nissan Almera g15 great knowledge about Renault. Description of the motor Engine Nissan for Note (E11) 2006-2013;Micra (K12E) 2002 1.4 L. 16V

Signs of a faulty chain drive:

The car starts worse when the engine is cold;
malfunctions occur when idling;
At XX, a chain hum is heard.

The cause of the malfunction may not necessarily be a stretched chain; the tensioner also fails. To eliminate the defect, you should change the tensioning device; this work is simple and does not take much time.

Nissan Almera timing chain replacement

Nissan Almera was produced in 2 generations, the cars of the first version (N15) were produced from 1995 to 2000, the car was equipped with GA14DE and GA16DE gasoline engines with volumes of 1.4 and 1.6 liters, as well as a two-liter SR20DE internal combustion engine, which went into production on Almera since 1996. Answer: replacing the pump on a Grand Vitara, remove the cooler, belts, steering wheel, crankshaft pulley, front cover. GA14 and GA16 differ from each other only in cylinder volumes; the engines are similar in their design.

The Nissan Almera N16 was produced from 2000 to 2006, and was mainly equipped with 4-cylinder petrol engines QG15DE (1.5 l) and QG18DE (1.8 l). All of the listed engines on the Nissan Almera are with a timing chain drive; the gas distribution mechanism on these engines is very reliable. The first signs of a malfunction begin to appear no earlier than after 200 thousand km, but if the timing belt is noisy, you should change the entire set that includes it (for QG series internal combustion engines):

The timing kit for GA engines includes two chains, respectively, and two tensioners, but there is no upper damper. The timing kit SR20DE (2.0L) includes one chain, upper and side stabilizers, boot, tensioner, crankshaft and camshaft gear (2 pieces). Replacing the timing chain of a Nissan Almera SR20DE is done in a standard way - the front part of the engine is disassembled, the valve cover and crankcase (pan) are also removed.

Replacement Timing chains Nissan Primera

The Nissan Primera in the P10 body debuted for the first time in 1996, then the Nissan company produced two more generations of the car (P11 and P12), production of the model was discontinued in 2008. Owners of cars with this type of drive may not be afraid of a break, but at different engine sizes, replacing the timing chain of a Nissan note 1.4 or higher is sometimes an inevitable procedure. All Primera gasoline power units had a timing chain drive; the following engines were installed on the vehicles:

Primera engines of the QR series were also installed on Nissan X-Trail, Serena, Teana cars; this unit replaced the engines of the SR model. Replacing the timing belt on Hyundai getz 1.4 - drive2. It is quite difficult to change the timing belt set on QR engines without the help of others; it is better to entrust such work to special car services. In terms of time, replacing the timing chain of a Nissan Primera with a QR internal combustion engine takes on average from 9 to 12 hours, and without good plumbing skills, a similar repair can take forever.

Nissan X Trail: timing chain replacement

The Nissan X-Trail was produced in 3 generations - T30, T31 and T32, the crossover has been produced since 2001. Replacing a ball joint on a Nissan Almera. The T30 engine line is represented by two four-cylinder power units QR20DE and QR25DE; in the T31 generation, instead of the two-liter MR20DE, the MR20DE engine began to be installed.

On QR engines, the chain can stretch over a mileage of closer to 150 thousand km; signs of a malfunction are:

reduction in engine power;
adjustment at idle speed;
Noisy operation of the internal combustion engine at idle.

On a Nissan X Trail car, when replacing the timing chain (2. Replacing the timing chain kit on the timing chain tensioner on a Nissan Almera Tino 1.8. MR20DE), the following changes in the kit:

two chains (main and oil pump drive);
one balance shaft gear;
two camshaft gears;
one crankshaft gear;
two tensioners (lower and upper);
shoe;
top and side tensioners.

The crankshaft gear is a double-row gear, with its help the camshafts and the balance shaft of the engine are driven from the crankshaft.

Nissan Maxima chain replacement

The Nissan Maxima has been produced since 1984, with a total of eight generations of this model represented. The line of power units is not very diverse; only V-shaped 6-cylinder engines are installed on the cars, mainly VQ series engines (VQ30DE, VQ35DE) with a volume of 3.0 and 3.5 liters. 12.11 Changing the rear hub bearings Changing the rear hub bearings Rear wheel hub assembly 1 - Cover 2.7 - Axle axle 3 - Brake drum 4 - Hub 5 - Bearing 6 - Oil seal 7 - Bolt securing the axle to the lever 8 - Bearing 9 - Washer 10 - Nut 11 - Crown lock washer 12 - Cotter pin 1. Remove the brake drum (see Chapter Maintenance...

The gas distribution mechanism of the VQ internal combustion engine can be called the most complex of all Nissan engines; the timing kit includes:

three chains (one main and two for balancing shaft drives);
two huge camshaft sprockets;
four small camshaft sprockets;
one crankshaft sprocket;
5 tensioners;
boot (lateral stabilizer);
upper damper

The cost of the kit is quite expensive; on average, a complete set of timing parts costs from 6.5 to 9.5 thousand rubles.

To replace the chain Nissan Maxima (for example, let's take the Nissan Maxima QX A32), you need:

remove the air conditioning compressor;
dismantle the generator;
remove the power steering pump;
remove the camshaft and crankshaft sensors;
remove the crankshaft pulley;
remove the starter.

Next, you should drain the oil from the engine crankcase, first unscrew the bolts of the lower crankcase, then remove the main pan. To make it easier to replace timing parts, it is better to remove the radiator; you will also need to dismantle the right engine mount. Changing the oil in the variator on a Nissan Teana J32. To remove the engine support, you will need to jack up the engine itself, then you can remove the front cover of the engine.

After removing the cover, you should first set the marks on the gears, and then dismantle all the parts of the gas distribution mechanism.

Owners of cars with this type of drive may not be afraid of a break, but at different engine sizes, replacing the timing chain of a Nissan Note 1.4 or higher is sometimes an inevitable procedure. Over time, stretching may occur and, as a result, a shift in valve timing.

Professional employees of the Garage Technical Center, based on many years of experience, claim that the largest number of engine breakdowns occur due to insufficient quality and level of oil. Operation with the old composition is also unacceptable. Lack of lubrication can cause the chain to stretch.

When to change

The maintenance regulations and company engineers do not provide for reinstallation of the drive element, and condition checks are scheduled after the first 15 thousand km and then every 30 thousand km. It is absolutely not worth ignoring the established deadlines, and inspecting the timing system more often, when the opportunity arises, good specialists strongly recommend.

Important! If you purchased a car with questionable mileage or the purchase is not made directly from the owner, you must definitely check the degree of tensioner displacement. The permissible limit is a maximum of 1 cm.

If there are any suspicions of malfunctions or the manifestation of a number of typical and well-recognized drive features, the need for diagnostics increases. The consequence of delay can be a complex, time-consuming repair, as well as its cost, due to the restoration of the cylinder head or, worse, a major overhaul of the internal combustion engine.

Signs of trouble

The car reports that the timing chain replacement on the Laptop is approaching in different ways:

unusual noise when the motor is running, the drive element is louder than usual
drop, surges in traction, speed, increased fuel consumption
phase shift of the crankshaft and camshaft, signal on the dashboard.

The installation of a new drive element is accompanied by various types of work necessary for reliable and long-term operation

Filling with new oil. If you have previously used a composition of questionable quality, it is better to wash it and switch to the recommended one.
Flushing radiators of the engine cooling and air conditioning systems.

Timing replacement for Nissan Note 1.6 at 110 and 140 hp. It is produced for both petrol and diesel versions.

FUNCTIONAL PURPOSE OF THE TIMING CHAIN

The Nissan Note timing chain drive is part of the gas distribution mechanism and is involved in the transmission of torque from the crankshaft to the camshaft. The chain can connect them directly or participate in the work indirectly, for example, combining camshafts with each other, if there are two of them, while its functional purpose remains unchanged.

Monitoring the condition of the timing chain, replacing dampers and tensioners is part of routine vehicle maintenance and plays an important role in the operation of the vehicle engine. It is necessary to regularly monitor the condition of the gas distribution system, as this directly affects the vehicle’s power, sensitivity when supplying gas and fuel consumption.

FEATURES OF CHAIN REPLACEMENT

In most engines of older car models, chains with roller links were used to transmit torque, often the components were in two or three rows, this made the timing chain a very reliable, almost eternal mechanism that does not require constant maintenance. Often the car traveled up to 300,000 km. and the chain of the mechanism received only lateral play, and the worst thing that could happen to the gas distribution mechanism was the links jumping; breaks were extremely rare. Over time, production price, efficiency, environmental friendliness and the weight of the car engine, which affects its power, have become trends in the creation of cars. Under these conditions, manufacturers began to strive to replace the timing chain with a lighter, cheaper and easier to maintain timing belt. And those motors whose design retained chains and roller components were replaced with lightweight plate links, more reliable than timing belts, but still not as strong as roller chains.

The Nissan Note timing chain has a number of features that fundamentally distinguish it from the timing belt.

1. The chain is a durable mechanism; it wears out much longer than the timing belt; breaks do occur, but much less frequently than in belt-driven engines.

2. A break in the timing chain occurs quite rarely, which means engine breakdowns requiring expensive overhauls do not occur often.

3. Timing chains are quite noisy, but with the modern level of car noise insulation, this parameter becomes not very important.

4. When the chain wears out, its play and lateral runout occur, this indicates the need to replace the old chain with a new one. Since the metal part sagging and lateral runout is accompanied by strong noise, it is simply impossible not to notice and not to attach significance to it. A noise under the hood will be the first “bell” indicating the need for vehicle maintenance.

5. The main disadvantage of replacing the Nissan Note timing chain is that it is located inside the cylinder block and it is quite difficult to assess its condition without training and experience. In addition, dismantling and replacement, with such a device, is a long and labor-intensive process, and therefore expensive.

6. Tensioners and dampers are involved in the operation of the timing chain - these are consumable parts that wear out quickly and require more frequent replacements than the timing chain itself.

TYPES OF FAULTS

1. Timing chains, when in full working order, have a natural movement, which is compensated by tensioners when oil pressure is applied. A malfunction is considered to be a strong lateral runout of the timing chain, which appears when the links are stretched. The actual degree of chain stretch can only be determined through a qualified inspection of the gas distribution mechanism.

2. Backlash is a direct stretching of the chain, which is observed during long-term operation, can lead to jumping of chain links and malfunction of the gas distribution mechanism, this leads to a decrease in the sensitivity of the engine when the gas pedal is pressed and an increase in fuel consumption.

3. A broken Nissan Note timing chain is the most dangerous damage to the engine; in the case of a chain drive motor, it does not occur often, but it does occur. If such a malfunction occurs, the camshaft ceases to be connected to the crankshaft and can stop completely arbitrarily in a position in which any of the valves of the gas distribution mechanism is open. In this case, the piston, moving upward, may collide with the valve, which will lead to its deformation and the car engine will face serious repairs. It should be noted that a timing chain break does not occur unexpectedly; it is almost always accompanied by changes in the operation of the vehicle, a decrease in its power, a change in gasoline consumption and the appearance of extraneous noise.

To prevent and prevent the operation of the gas distribution mechanism, it is necessary to periodically troubleshoot the timing chain; this will save the car engine from breakdown, prevent premature engine wear and increase its service life.

CAUSES OF WEAR

1. Operating a Nissan Note in extreme conditions. Frequent driving on unpaved roads, towing trailers, heavy loads, and traveling at high speeds increases the load on the crankshaft, spinning it to maximum speed, which leads to stretching of the timing chain.

2. Since the timing chain is located inside the cylinder block, it is completely washed by engine oil and, as a result, is very sensitive to its quality. In the case of using high-quality synthetic oil containing specialized detergent additives, the service life of the timing chain is significantly increased

3. The operation of the timing chain involves parts that regulate the tension of the chain; they are consumables and require periodic replacement. During vehicle maintenance, it is necessary to check the degree of wear of the tensioner and the “calculator”; untimely replacement of these parts can lead to stretching of the chain and skipping of links.

SIGNS OF PROBLEM

1. Increase in gasoline consumption by car;

2. Reduced engine power; 3. The appearance of clanging and noise under the hood of the car when the engine is running;

4. A complete stop of the car while moving; when you try to start, the engine does not start, and the starter rotates more easily than usual;

5. Unstable operation of the Nissan Note engine at idle and while driving;

6. The occurrence of shots in the injector receiver and exhaust pipe.

All these problems may indicate a shift in the valve timing and loosening of the chain tension. If you notice one or more signs of this list on your car, immediately contact a service station for an inspection.

HOW OFTEN DO YOU NEED TO REPLACE THE TIMING CHAIN?

The frequency of replacing any consumables for Nissan Note cars depends on the driving style and operating mode of the car. With an extreme driving style and aggressive use of the vehicle, it is necessary to replace the timing chain as it becomes loose and wears out.

Under normal operating conditions, it is necessary to replace the timing chain as planned, every 100 - 150,000 km. mileage If your car has an analog belt, replacement must be done a little earlier than the time recommended by the vehicle manufacturer.

Entrust your car only to professional specialists who are capable of competently troubleshooting the timing chain, assessing lateral runout and play, replacing and adjusting the operation of tensioners, chain drive "pretensioners" and replacing the Nissan Note timing chain.