FUNCTIONAL PURPOSE OF THE TIMING BELT

Timing belt replacement is part of the planned Maintenance car Hyundai ix35 and plays an important role in the engine vehicle... Untimely replacement of the belt can lead to a malfunction of the motor, and a break can lead to deformation of the valve of the gas distribution mechanism and the need for overhaul engine.

All parts of the gas distribution mechanism are closely related to each other, the injection of an air-fuel mixture drives the piston of the engine cylinder, which in turn pushes crankshaft connected by a drive belt with camshaft... Thus, the camshaft moves, which regulates the frequency of the valves. The timing belt Hyundai ix35 connects the gears and transmits torque from the crankshaft to the camshaft, affecting the speed of its rotation. If the system is working properly, the frequency of their revolutions should be equal.

TIMING BELT FAULTS

1. Timing belt wear leads to a change in the force of transmission of torque from the crankshaft to the camshaft, as a result of which there is a change in the frequency of movement of the pistons and engine valves. This, in turn, leads to a failure in the operation of the gas distribution system, rapid heating of the engine and, as a consequence, a decrease in engine power and an increase in the consumption of the fuel mixture. For a reliable and smooth operation of the motor, it is necessary that the valves close and open at the same frequency with the engine pistons. If, due to wear, slippage of the timing belt occurs, this can cause a break.
2. A break in the timing belt Hyundai ix35 is the most dangerous damage to the engine. In the event of such a malfunction camshaft ceases to be associated with the crankshaft and can stop completely arbitrarily in such a position in which any of the valves of the gas distribution mechanism will be open. In this case, the piston, moving upward, can collide with the valve, which will lead to its deformation. In this case, the car engine is in danger of serious repairs. It should be noted that a timing belt breakage does not happen unexpectedly, almost always this is accompanied by changes in the operation of the car's engine, a decrease in its power, a change in gasoline consumption, the occurrence of extraneous squeaks, squeaks, etc.

To prevent and prevent the operation of the gas distribution mechanism, it is necessary to periodically replace the timing belt, this will save the engine of the Hyundai ix35 from breakdown, prevent premature engine wear and increase its service life.

REASONS AND ASSESSMENT OF TIMING BELT WEAR

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

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

• the appearance of oil and antifreeze smudges capable of chemically destroying the timing belt, with prolonged exposure;
• the occurrence of longitudinal cracks on the back surface of the belt;
• the formation of transverse cracks on the inner surface of the drive belt;
• a loose surface and a violation of the integrity of the edge are also a sign of wear;
• the wear of the belt is also indicated by rubber dust on the surface of the part;
• if the timing belt teeth began to peel off or wear off, the part must be immediately replaced with a new one.

SYMPTOMS OF THE TIMING BELT

1. Increased consumption of gasoline by car
2. Decreased engine power
3. Complete stop of the car on the move, when trying to start the engine does not start, and the starter rotates easier than usual
4. Precarious work engine on Idling and in motion;
5. The occurrence of shots in the receiver of the injector and the exhaust pipe

All these malfunctions may indicate a shift in valve timing and a loosening of the belt tension. If on your Hyundai ix35 car you notice one or more signs and this list - immediately contact the service station for an inspection.

HOW OFTEN IT IS NECESSARY TO REPLACE THE TIMING BELT Hyundai ix35

The frequency of replacing any consumables for vehicles depends on the driving style and mode of operation of the vehicle. With extreme driving style and aggressive use of the vehicle, it is necessary to replace the timing belt as it wears out and the teeth wear off.

Under normal operating conditions, it is necessary to replace the original timing belt as planned, every 60 - 70,000 km. mileage. During this period, it develops its resource and becomes unusable. If your Hyundai ix35 has an analog belt, the replacement should be done a little earlier than the time recommended by the vehicle manufacturer.

WHICH TIMING BELT IS BETTER TO CHOOSE

Modern belts for the gas distribution system are a high-tech product, characterized by increased strength and wear resistance, capable of withstanding high dynamic loads. Timing belts are made of neoprene or polychloroprene reinforced with durable fiberglass, nylon and cotton cords.

1. To avoid the mistake associated with buying a timing belt, contact the specialists who will help you order a timing belt suitable for your car's engine using the WIN code of your car. This part is one of the most important in the design of the engine, the slightest deviation in the length, width, shape and size of the teeth can lead to malfunctions in the engine of the Hyundai ix35.
2. Do not try to save money when buying a timing belt, a cheap product can be a low-quality fake, which will quickly deteriorate and may cause serious engine damage in the future. The best option for any car, there are original parts, their cost is higher than analog ones, but during the operation of the car they quickly pay for themselves.
3. When buying a timing belt, check its rigidity, nice belt should be flexible and easy to bend. The worse the belt, the more rigid it will be.
4. The presence of teeth, sagging, pores on the belt is not allowed - these are signs of a low-quality belt that will quickly become unusable. The surface of the product must be smooth, small burrs are allowed.
5. When buying by yourself, check the timing belt part number printed on the back, it must correspond to the WIN code of the car. If it is not possible to compare the code of the belt and the car, then it is necessary to make a visual comparison of the old and new belt, they must be completely identical.
6. To avoid buying a fake, try to purchase spare parts only from authorized, verified dealers.
7. Do not save on a qualified timing belt replacement, contact our certified car service, where competent mechanics will help you repair your Hyundai ix35 car. And in the spare parts store you can buy original spare parts for your car.

Introductory information

• Content

  
  Daily checks and troubleshooting
  Vehicle operation and maintenance manual
  Precautions and safety rules when working on a car
  Basic tools, measuring devices and methods of working with them
  The mechanical part of the gasoline engine (2.0 l and 2.4 l)
  Mechanical part of a diesel engine
  Cooling system
  Lubrication system
  Supply system
  Engine management system
  Intake and exhaust systems
  Engine electrical equipment
  Clutch
  Manual Transmission
  Automatic transmission
  Drive shafts and final drive
  Suspension
  Brake system
  Steering
  Body
  Passive safety
  Air conditioner and heater
  Electrical systems and wiring diagrams
  Fault codes
  Explanatory dictionary
  Abbreviations

• Introduction

  INTRODUCTION

  Hyundai Tucson named after a North American city in the state of Arizona. In the language of the indigenous people of these places, the Pima Indians, the word Tucson means "spring at the foot of the black mountain." The name of this “city of the sun” (more than 300 sunny days a year) fits perfectly with one of the most popular models of Hyundai - more than 1 million cars sold.

  The next generation Hyundai Tucson was presented to the public at the Frankfurt Motor Show on September 3, 2009. At the same time, it started selling it in South Korea under the name Tucson ix. Since in fact the new car turned out to be a class higher than its predecessor, in January 2010 it was announced that the Tucson model was discontinued, and the car continued to be produced absolutely unchanged under the name Tucson ix35 in Europe at the Kia Motors Slovakia plant.

  

  The Korean manufacturer spent three years and $ 225 million on the creation of the new crossover. The car was designed in Europe at the Hyundai Technology and Design Center in Russelsheim by an international team of specialists from the United States, Europe and Korea. It was possible to significantly reduce costs due to the use of the platform of the previous Hyundai generations Tucson, which has undergone minor upgrades. New car has noticeably increased in size, thanks to which even 5 adults in the cabin will feel unchanged comfort during the trip. Dimensions (edit) luggage compartment also increased - it became 67 mm deeper and 110 mm wider. The overall design of the car has also influenced the height of the trunk - it is reduced by 80 mm. At the same time, unlike the previous Tucson, open separately rear glass impossible.

  

  The exterior design of the new crossover, according to the designers, is based on the concept of "flowing lines". The sporty look is underlined by graphic elements of the new hexagonal grille, aggressive lower air intake, sculpted bonnet curves, headlamps that extend over the fenders, the shape of the roof and body lines. Hyundai ix35 turned out to be sporty, dynamic, powerful, but at the same time refined and light.

  

  In addition to the exterior, the interior is functional and elegant. The build quality, interior materials and ergonomics are at the highest level. All controls are very user-friendly and easy to use. The center console houses a large touchscreen display of the multimedia system. Four-spoke wheel with buttons remote control the audio system is regulated not only by the angle of inclination, but also by the horizontal reach. Rear seat passengers do not feel a lack of free space. Both front and rear seats cars are equipped with a heating function, while in the front seats, heating elements are built not only in the cushions, but also in the backrests.
  The line of power units installed on the Hyundai ix35 is represented by two in-line four-cylinder gasoline engines with working volumes of 2.0 liters and 2.4 liters with a capacity of 150 liters, respectively. with. and 176 liters. with., as well as one two-liter diesel engine with a capacity of 136 and 184 liters. with. depending on the degree of forcing. All engines can be paired with a five- or six-speed manual, and a six-speed automatic transmission gear. Traditionally, for this class of cars, two types of drive are offered: front and full.
  Basic configuration boasts six airbags including side curtains, active front head restraints, light sensor for automatic switching on headlights, high-quality MP3-radio with USB and AUX connectors, as well as 17-inch alloy wheels... More expensive modifications, in addition to all of the above, are also equipped with the Electronic Stability Program (ESP) - a dynamic vehicle stabilization system that maintains directional stability, with a system for assistance when starting up and downhill, an engine start button, parking sensors and a camera rear view, dual-zone climate control and 18-inch alloy wheels. The richest equipment has a panoramic roof with a sliding sunroof, a tire pressure monitoring system and an interior trimmed with leather in two colors.
  Hyundai Tucson / ix35 is a car designed to become a symbol of success, freedom, youth and sports spirit.
  This manual provides instructions for the operation and repair of all modifications of the Hyundai Tucson / ix35 manufactured since 2009.
  

  Hyundai Tucson / ix35
  2.0 i Body type: station wagon Engine displacement: 1998 cm3	Doors: 5 KP: mech. / Author.	Fuel: AI-95 gasoline Consumption (city / highway): 9.8 / 6.1 l / 100 km
  2.0 CRDi Years of issue: from 2009 to the present Body type: station wagon Engine displacement: 1995 cm3	Doors: 5 KP: mech. / Author.	Fuel: diesel Capacity fuel tank: 65 l Consumption (city / highway): 6.6 / 4.9 l / 100 km
  2.4 DOHC Years of issue: from 2009 to the present Body type: station wagon Engine displacement: 2359 cm3	Doors: 5 KP: mech. / Author.	Fuel: AI-95 gasoline Fuel tank capacity: 58 L Consumption (city / highway): 10.7 / 7.8 l / 100 km

• Emergency response
• Exploitation
• Engine

Hyundai ix35 engine. Gas distribution mechanism drive Hyundai ix35

4. GAS DISTRIBUTION MECHANISM DRIVE

Engines of 2.0 l (with oil pump)

1. Intake camshaft 2. Phase shifter 3. Exhaust camshaft 4. Phase shifter 5. Timing chain 6. Chain guide 7. Chain tensioner 8. Chain tensioner 9. Oil pump chain guide 10. Oil pump drive chain 11. Lever oil pump chain tensioner 12. Timing chain cover

Engines of 2.4 l (with balance shaft)

1. Intake camshaft 2. Phase shifter 3. Exhaust camshaft 4. Phase shifter 5. Timing gear chain 6. Chain guide 7. Chain tensioner lever 8. Chain tensioner 9. Balance shaft drive chain guide 10. Balance shaft drive chain 11. Balance shaft drive chain tensioner lever 12. Balance shaft drive chain tensioner 13. Timing chain cover

1. Disconnect the negative cable from the battery.

2. Remove the engine cover (A).

3. Remove the front right wheel.

4. Remove the side cover.

5. Set cylinder # 1 piston to top dead center (TDC) / compression stroke.

6. Drain the engine oil, then place a jack under the oil pan.

Note:
Place a block of wood between the jack and the oil pan.

7. Disconnect the ground wire and remove the engine mounting bracket.

8. Remove the accessory drive belt (A).

9. Disconnect the power steering pump from the bracket.

10. Remove the lower compressor mounting bolts.

11. Remove the compressor bracket (A).

12. Remove the pulley (A) and drive belt tensioner (B).

ATTENTION
Left hand tensioner pulley bolt.

13. Remove the water pump pulley (A), crankshaft pulley (B).

Note:
Unscrew the crankshaft pulley bolt using the flywheel lock (092312B100), then remove the starter.

14. Remove the oil pan (A).

ATTENTION
When using the special tool (092153C000) when removing the oil pan, be careful not to damage the contact surfaces of the cylinder block and the oil pan.

15. Remove the breather hose (A).

16. Disconnect the crankcase breather hose (A) and outlet oil control valve connector (B).

17. Disconnect the ignition coil connectors (C) and remove the coils.

18. Remove the cylinder head cover (A).

19. Remove the timing chain cover (A).

ATTENTION
Do not damage the contact surfaces of the cylinder block, cylinder head and timing chain cover.

20. The crankshaft key must be flush with the mating surface of the main bearing cap. As a result, the piston of cylinder # 1 will be at top dead center (TDC), compression stroke.

Note:
Before removing the drive chain, make marks on the chain for the position of the sprocket.

21. Install the locking pin after sliding the chain tensioner rod into the housing as shown.

22. Remove the chain tensioner (A) and chain tensioner arm (B).

23. Remove the timing chain.

24. Remove the chain guide (A).

25. Remove the timing chain oil nozzle (A).

26. Remove the drive chain sprocket from the crankshaft (B).

27. Remove the balance shaft (oil pump) chain.

INSTALLATION

1. Install the balance shaft drive chain (oil pump).

2. Install the crankshaft drive chain sprocket (B).

3. Install the chain oil nozzle (A).

Note:
Tightening torque: 7.8-9.8 Nm.

4. Install the crankshaft so that the key is flush with the mating surface of the main bearing cap. Position the intake and exhaust camshafts so that the top dead center (TDC) marks on the sprockets are flush with the top surface of the cylinder head. As a result, the position of the piston of cylinder # 1 will be at top dead center (TDC), compression stroke.

5. Install the timing chain guide (A).

Note:
Tightening torque: 9.8-11.8 Nm.

6. Install the timing chain.

To install a chain without slack between each shaft (camshaft and crankshaft), follow the order shown: Crankshaft sprocket (A) -> Timing chain guide (B) -> Intake camshaft sprocket (C) -> Exhaust camshaft sprocket (D ). The labels on each sprocket must match the timing chain labels (colored) when installing the chain.

7. Install the chain tensioner arm (B).

8. Install the automatic chain tensioner (A) and remove the installed stud.

9. After turning the crankshaft 2 turns clockwise (front view), align the marks (A) as shown in the illustration.

10. Install the timing chain cover.

Using a scraper, remove the old sealant from the gasket surface.

Places where sealant is applied to the chain cover, cylinder head, cylinder block and cross member frame must not come into contact with oil, etc.

Before assembling the chain cover, Loctite 5900H or THREEBOND 1217H must be applied between the head and the cylinder block.

Parts must be assembled within 5 minutes after applying the sealant.

Note:
Band width: 2.0L: 2.5mm; 2.4 l: 3 mm.

Install the timing chain cover.

Note:
Torque:
6x25: 7.8-9.8 Nm; 8x28: 18.6-22.5 Nm; 10x45: 39.2 - 44.1 Nm; 10x40: 39.2 - 44.1 Nm.

Firing and / or blowing of the timing chain cover must be carried out no later than 30 minutes after assembly.

11. Install the oil pan.

Before installing the oil pan, Loctite 5900H or THREEBOND 1217H liquid sealant must be applied between the cylinder block and oil pan connector surfaces.

ATTENTION
- When applying sealant, be careful not to get sealant inside the oil pan.
- To prevent oil leakage, apply sealant to the inside of the mounting bolt holes.

Install the oil pan (A).

Screw the bolts into several holes.

Note:
Torque:
M6 (C): 9.8-11.8 Nm; M9 (B): 30.4- 34.3 Nm.

After assembly, wait at least 30 minutes before refilling engine oil.

12. Install the cylinder head cover.

Extruded excess sealant on the top surface of the chain cover and cylinder head must be removed before installing the cylinder head cover.

After applying sealant (Loctite 5900H), the assembly must be completed within 5 minutes.

Note:
Band width: 2.5 mm.

Firing and / or blowing off the cylinder head must be carried out no later than 30 minutes after assembly.

Install the cylinder head cover bolts as follows: step 1: tightening torque: 3.9 ~ 5.9 Nm, step 2: tightening torque: 7.8 ~ 9.8 Nm.

Hyundai ix35 replaced the popular Tucson in 2010. The crossover is built on the same platform with Kia sportage third generation. The ix35 was assembled in South Korea, as well as in Europe - at the Kia factories in Slovakia and Hyundai in the Czech Republic.

Engines

On Russian market Hyundai ix 35 was offered with 2-liter engines: petrol (150 hp) and diesel (136 and 184 hp). All power units have a timing chain drive.

Some owners of gasoline IX 35 after 50-150 thousand km notice an extraneous knock while the engine is running. The reasons were different: a faulty hydraulic chain tensioner, a CVVT clutch (variable valve timing), hydraulic lifters (installed after restyling in 2013), or even seizures in the cylinders.

Fortunately, bullies are not common. When contacting during the warranty period, dealers did not change the entire engine, but only the “short block” assembled with pistons and crankshaft. If the guarantee is out, then the block will have to be cased - from 100,000 rubles.

Starting the engine can be difficult due to a malfunction of the clutch pedal switch (with manual transmission) / brake (with automatic transmission), and in cold weather - due to the "retracting" starter (grease thickens).

V diesel units after 50-100 thousand km, sometimes the crankshaft damper pulley is rented (from 7,000 rubles). And problems with starting a cold diesel engine arise due to poor contact or oxidation in the place where the glow plug wiring is crimped (about 1,000 rubles). In addition, the glow plug relay (from 4,000 rubles) or the candles themselves (1,500 rubles / piece) may fail.

Front box

For the ix 35, there are three boxes: 5 and 6-speed "mechanics", as well as 6-speed "automatic". There are no serious problems with boxes. In the case of manual transmissions, many note the appearance of extraneous noise that disappears after squeezing the clutch, and in the case of automatic transmissions, the owners complain about noticeable jolts during switching.

Transmission

Poor protection of the spline joints of the drive elements from the effects of water and dirt leads to unpleasant consequences. So, after 50-100 thousand km, corrosion kills the splined connection of the right-hand drive shaft. Licks the slots - there is a backlash and hum. The intermediate shaft and the inner CV joint have to be changed: 7,000 rubles per element plus 3,000 rubles for work.

Worse, the intermediate shaft support bearing mount may break off. The mount is part of the unit. Ideally, it is necessary to replace the block, but it is possible to get off with argon welding. Fortunately, this problem is much less common.

Another example of poor spline protection is corrosion and shearing of the drive shaft splines in transfer case and a differential cup (after 100-150 thousand km). The repair will be very costly - about 80,000 rubles. First of all, the owners of diesel cars are at risk. The prevention of spline joints will help to avoid problems - lubrication every 30-40 thousand km. In addition, high torque diesel engines can lead to destruction of the differential cage along the weld.

Hyundai ix 35 used two connection couplings all-wheel drive... Until 2011, an electromagnetic clutch of Japanese origin JTEKT was installed, and since 2011 - a hydraulic Austrian manufacturer Magna Steyr. The clutch is quite reliable. Malfunctions occur due to damage to the wiring (3,000 rubles) or wear of the brushes of the electric motor (with high mileage). After 100,000 km, sometimes the clutch oil seal begins to leak.

Outboard bearing cardan shaft(4-5 thousand rubles) can buzz after 80-140 thousand km.

Undercarriage

The knocking suspension is the reason for many complaints about Hyundai, and not only the ix35. Knocks when driving through irregularities are aggravated with the arrival of cold weather. There are several sources of extraneous sounds. The main one is the native shock absorber struts, which can knock after 2-3 thousand km. Official services changed the racks under warranty. But that didn't mean they wouldn't knock again. After all, the new shock absorbers are the same. Some managed to change them three times for 20,000 km. But the problem is not global, there are those who drove up to 80-100 thousand km, never noticing that something is knocking in the suspension.

Another source of knocks is the boot and shock absorber bump stop flying off the seat. The manufacturer recommended fixing the boot to the rack with a sealant. Folk method - winding electrical tape on a rod or tie of a "buffer" (bump stop) with clamps. On ix35 2012 model year, the manufacturer eliminated this design miscalculation.

Can knock after 50,000 km steering rack... Hub bearings (from 1,000 rubles) run more than 60-100 thousand km.

Silent blocks and ball joints of levers serve more than 100-150 thousand km. And here is the bracket rear arm, to which the stabilizer post is attached, can collapse after 60-100 thousand km. The bracket can be welded. The new lever is available for 9,000 rubles. The defect affects exclusively all-wheel drive versions of the Hyundai iX 35.

Body and interior

The paintwork is traditionally soft, easily scratched and chipped over time. Unfortunately, after 3-6 years, paint swelling can sometimes be found on the rear wheel arches, tailgate, hood, roof and windshield pillars. Dealers are reluctant to acknowledge this issue as a warranty case.

Salon ai x 35 often starts to creak, especially in winter period- before warming up the passenger compartment. The most common source of extraneous sounds is the armrest between the front seats.

Another unpleasant moment is the crumbling filler of the driver's seat cushion. From close friction with the sharp edges of the frame, the "insides" can completely crumble out in just 30,000 km. The stubbornness with which the manufacturer changed the seat cushion over and over again is surprising. It was only in 2015 that the decision was made to install a special lining on the frame to resist destructive friction.

The same story is with the peeling leather steering wheel and door trim, in the place of contact with the driver's elbow. The "leather" of the chairs does not differ in durability either. Wrinkles appear in the driver's seat, and the leather cracks and breaks.

Sometimes the stove motor starts to make noise (it is necessary to disassemble, clean and lubricate), or the plastic casing of the air duct flies from its place under passenger seat... There are also failures of parking sensors, rear view cameras and "glitches" head unit... Cases of spontaneous ignition of control lamps with subsequent short-term extinction of the instrument panel were also noted. In such cases, dealers changed the "tidy".

Conclusion

When choosing a used Hyundai ix35, special attention should be paid to the operation of the all-wheel drive system. The rest of the defects are easily removable.

FUNCTIONAL PURPOSE OF THE TIMING CHAIN

The timing chain drive of the Hyundai ix35 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, connecting the camshafts with each other, if there are two of them, while its functional purpose remains unchanged.

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

FEATURES OF CHAIN ​​REPLACEMENT

In most engines of old car models, chains with roller links were used to transmit torque, often the components went in two or three rows, this made the timing chain a very reliable, almost eternal mechanism that did not need 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 jumping of the links, breaks were extremely rare. Over time, the trend in the creation of cars has become the production price, efficiency, environmental friendliness and the weight of the car's engine, which affects its power. 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 in the design of which the chains were preserved, the roller components were replaced with light plate links, more reliable than timing belts, but still not as strong as roller chains.

The timing chain of the Hyundai ix35 has a number of features that radically distinguish it from the timing belt.

1. The chain is a durable mechanism, its wear takes much longer than the timing belt, breaks occur, but much less often than in belt-driven engines.

2. An open circuit of the gas distribution mechanism occurs quite rarely, which means that an engine breakdown, requiring expensive overhaul, does not occur often.

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

4. When the chain is worn out, its backlash and lateral runout occur, this indicates the need to replace the old chain with a new one. Since the metal part is sagging and lateral beating is accompanied by strong noise, it is simply impossible not to notice and not attach importance to it. The noise under the hood will be the first "call" indicating the need for vehicle maintenance.

5. The main disadvantage of replacing the timing chain of the Hyundai ix35 is that it is located inside the cylinder block and it is rather difficult to assess its condition without training and experience. In addition, dismantling and replacement, with such a device, is a long and laborious process, which means it is expensive.

6. Tensioners and dampers are involved in the timing chain - these are consumables that wear out quickly and need more frequent replacements than the timing chain itself.

TYPES OF FAILURES

1. At the timing chains, with full serviceability, a natural course is observed, which is compensated by the tensioners when the oil pressure is applied. A malfunction is considered to be a strong lateral beating of the timing chain, which appears when the links are stretched. It is possible to determine the real degree of chain stretching only with a qualified inspection of the gas distribution mechanism.

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

3. Opening the timing chain Hyundai ix35 - is the most dangerous damage to the engine, in the case of a chain drive of the motor, it is not common, but it does take place. In the event of such a malfunction, the camshaft ceases to be associated with the crankshaft and can stop completely arbitrarily in such a position in which any of the valves of the gas distribution mechanism will be open. In this case, the piston, moving upwards, may collide with the valve, which will lead to its deformation and the car engine will face serious repairs. It should be noted that the timing chain breakage does not occur unexpectedly, almost always this is accompanied by changes in the operation of the vehicle, a decrease in its power, a change in gasoline consumption and the occurrence 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 damage, prevent premature engine wear and increase its service life.

CAUSES OF WEAR

1. Operation of the car Hyundai ix35 in extreme conditions. Frequent driving on unpaved roads, towing trailers, heavy loads, driving at high speeds leads to an increase in the load on the crankshaft, spinning it up to maximum speed, which leads to a stretching of the timing chain.

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

3. The timing chain involves parts that regulate the tension of the chain, they are consumable and need to be replaced periodically. During maintenance of the car, it is necessary to check the degree of wear of the tensioner and "damper", untimely replacement these parts can cause the chain to stretch and the links to skip.

SYMPTOMS OF MALFUNCTIONS

1. Increased consumption of gasoline by car;

2. Decrease in engine power; 3. The appearance of clanking and noise under the hood of the car when the engine is running;

4. Complete stop of the car on the move, when trying to start the engine does not start, and the starter rotates easier than usual;

5. Precarious work Hyundai engine ix35 at idle and in motion;

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

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

HOW OFTEN DO YOU NEED TO REPLACE THE TIMING CHAIN

Frequency of replacing any consumables for Hyundai cars ix35 varies depending on driving style and machine usage. With extreme driving style and aggressive use of the vehicle, it is necessary to replace the timing chain as it looses 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, it must be replaced a little earlier than the time recommended by the vehicle manufacturer.

Trust your car only to professional specialists who are able to correctly troubleshoot the timing chain, assess lateral runout and backlash, replace and correct the operation of tensioners, chain drive “dampers” and replace the Hyundai ix35 timing chain.

Everyone knows that the timing is a very important unit in the engine of every car. The factor of economical fuel consumption directly depends on its optimal functioning, it also affects the general behavior of the car. In the Hyundai ix35, a chain is used as a timing drive. With its help, synchronized rotation of the crankshafts and camshafts is carried out.

Chain replacement regulations in theory and practice

The chain is, of course, much more reliable than a belt drive. It cannot break, its service life is slightly longer than that of a belt. But all this does not mean that she will serve forever and there is no need to follow her. The service life of the chain drive is regulated and it is approximately 150,000 km. In some cases, it fails a little earlier. This may be due to the use of the vehicle in poor driving conditions, with constant extreme driving and with some other factors. If the engine is under maximum load for a long time, this may even cause an open circuit. Yes, sometimes, albeit very rarely, this happens. But the release of the chain from the sprockets is quite common. So, in order to prevent the chain drive from breaking or coming off, its condition must be constantly monitored.

Some car enthusiasts claim to this that in modern cars the chain drive is tensioned automatically, so there is no need to look under the hood because of it. Of course, automatic tensioning is very good, but at least for the sake of common sense, sometimes you should still be interested in the state of the chain. Increased loads can cause the chain to sag, and this can be fraught with its coming off the sprockets. The sagging chain will constantly make noise, which is also not very good.

But what happens if the chain breaks? In this case, the pistons will hit the valves with great force. Both will suffer from this. The pistons will necessarily bend from this, and the bushings and valve seats will collapse. None of this will happen if you check the condition of the chain transmission in time and timely detect its sagging. If the chain sags slightly, then it is quite possible to try to tighten it by hand. It will no longer be possible to eliminate a strong sagging, and here it is already necessary to replace the sagging chain with a new one.

Replacement procedure

So we come to the main topic of this article. Here we will talk about how you can independently carry out the procedure for replacing the timing chain. From the beginning about what we actually need for this. Of course, you will have to go to the store and buy a new consumable there. We are talking here not only about the chain itself; most likely, the tensioner and dampers will also have to be replaced. Like all expendable materials, they also need periodic replacement. You will also have to prepare a set of keys, heads, screwdrivers with different stings, a jack and a knob. If all this is already at your fingertips, then you can start.

We change the timing chain drive on our own

Remember that work can only be done when the engine is cold. Disconnect the left terminal from the battery, which will de-energize the vehicle.

1. Remove the cover from the cylinder block. To do this, you will have to unscrew 16 bolts.
2. Remove the ignition coil.
3. Disconnect the ventilation system hose.
4. There is a gasket in the cylinder block cover connector. Don't forget to take it out.
5. There is also a gasket in the block of spark plug wells. It must also be removed from there.
6. All seating surfaces must be properly cleaned of dirt, traces of oil and used sealant.

All these were only preparatory procedures, after which you can proceed to the direct removal of the timing chain.

1. Set the piston of the first cylinder to the dead center position.
2. Prepare the container and pour the engine oil into it.
3. Now proceed to the removal power unit... Let's start with its top bracket.
4. Remove the drive of auxiliary structures.
5. Dismantle the power steering pump. Here we have to unscrew a few bolts. We take the hydraulic booster to the side.

6. Remove the tensioner, for which you have to first unscrew the bolt of its fastening.
7. Now remove the lower right support bracket. It is fastened with four bolts.
8. The accessory drive has a tension roller. It is he who needs to be removed at the next stage.
9. Remove the water pump.
10. Remove the alternator pulley. In this case, the pulley will have to be constantly held against turning. After that, we remove the generator itself.

11. Remove the generator bracket, having previously unscrewed 2 bolts of its fastening.
12. But to remove the cover from the timing belt, you will have to unscrew as many as 14 bolts. We turn them off, remove the cover.
13. Wring out the tensioner with a screwdriver and fix it.
14. Scroll the camshaft to the right and remove the chain from the gear.
15. The new chain can now be installed. At the same time, watch out for the coincidence of the marks on the chain itself (painted links) and on the camshaft sprockets. The pin on the crankshaft must be up during installation.
16. We clean the seats from dirt and used sealant.
17. Install the tensioner and once again check the correct location of the marks.
18. All other parts are put in the reverse order.

Be sure to replace the crankshaft oil seals every time you replace the chain. Otherwise, it may happen that you have to disassemble the entire mechanism just because of them.