Removal and installation (replacement) timing belt. Removal and installation (replacement) of the timing belt firms that produce high-quality analogs

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Sale cars from China. Hence some features of operation and maintenance.

It is worth saying that from the whole range of motors installed on our Great Wall Hover cars there is only one original, this is a two-liter diesel engine with the GW4D20 code. The remaining motors are Mitsubishi motors, respectively, 2.4 liters 4G64S4M and 2 liters 4G63S4M. From the point of view of the operation that interests us, we can say the following. Timing the timing on all these belt engines, there is a layout difference, but this is later.

It is worth saying that the period for replacing belts for all these motors The manufacturer has set the same 60,000 km or 36 months (3 years), which will come earlier.

Let's start with a motor 2.4 4G64S4M this is a four-cylinder engine with one switchgear. GRM drive - belt, but not one, as in most cases, and two! What is the secret? Everything is simple enough. The 4G64S4M engine has balancing shafts and one of them is driven by a small gear strap, separately from the main timing belt.

In general, the procedure for replacing belts on this engine does not cause great difficulty. To begin with, you will disassemble the front part, we will not work in detail, as it is quite obvious that you need to remove to access the timing belt covers. When we got to the covers, remove the crankshaft pulley. Then remove the top, aluminum lid and lower plastic. Next, we combine the labels on the gear of the camshaft and the casing valve cover.
You should also coincide with the labels on the crankshaft of the shaft and on the gear of the oil pump.

After examining our belts will proceed to replace. We unscrew the tensioner roller, remove the belt, unscrew the remaining rollers, remove the belt of the balancing shaft and the tensioner. Start the installation. First install a roller and a belt of the balancing shaft. Tags on gear pulleys of the crankshaft and the balancing shaft must coincide with the labels on the lids.

Adjusting the belt tension of the balancing shaft is made by the eccentric of the roller and is considered correct if the belt is deflection from above, the hand is 5-7 mm, the tightening torque of the bolt of the roller 18 nm.

When installing the belt, the labels on the gear gears shafts must coincide with the labels on the lids. There is one nuance. The oil pump gear is also a second balancing shaft drive. To check the adjustment of the oil pump gear: Remove the plug from the cylinder block. Insert the cross screwdriver with a diameter of 8 mm into the hole. Make sure the screwdriver is inserted to a depth of 60 mm. If a screwdriver can only be inserted by 25 mm: Check the oil pump of 360 ° and reinsert the screwdriver. So you can make sure that the installation of the second balancing shaft is correct.

Now it's time to do the automatic belt tensioner. It is necessary to make sure that the tensioner goes in its case without tasks. Before installing the tensioner to place it, it is necessary to "weigh", compress before combining holes and insert a suitable pin. Then we install the tensioner in place, the tensioner bolts are tightened with a torque of 23 nm.
Install the belt. Check the combination of tags on all gears. Gently turn the engine to a quarter turn back, and then back to the combination of tags. Once again check all tags. Next, you need to pull the belt, for this there is a special adapter.

Next, take out a pin from the automatic tensioner. We rotate the engine for 2 turns, check the tags, and after 15 minutes you measure the distance to which the tensioner pusher came out. It must be within 3.8-4.5 mm. Next we collect the engine in reverse orderThe crankshaft pulley reaches the torque of 88 nm.
Well, with a motor 2.4 we figured out, it's time to talk about replacing the timing on the engine volume 2.0 with 4G63S4M marking. Let's look at the front of this engine.

What we see, everything is almost the same except for the absence of a belt of the balancing shaft. And the essence is that on the motors 4G63S4M balancing shafts are not installed, the rest of the timing mechanism is completely identical. From this it follows that everything above said for the previous motor is also valid for our two liter, with the exception of the moments associated with balancing shafts.

And so the third motor, which we will consider this diesel GW4D20. The drive of the gas distribution mechanism here is the same belt. We dismantle everything that prevents removing the timing belt covers. Remove the belt cover, unscrew the 4 crankshaft pulley bolts and remove it. Now we see the whole mechanism and can set the labels as shown in the figure.

After that we turn crankshaft By 2 revolutions clockwise and check the coincidence of all installation marks., Also control the position of the tensioner roller pointer, if something does not match the procedures described above. If all "OK", then we collect everything in the reverse order, the crankshaft pulley bolts by pulling torque 20-26 Nm.
In general, everything, as can be seen for the mechanic of secondary qualifications, the procedure itself will not be a big problem and in the presence of skills and tools These works can make the car owner alone. Further I want to tell about the pitfalls. As a rule, when replacing the drive belt, the mechanic will advise to replace the water pump (POMPU). What is it connected with? The fact is that the service life of the pump is not much higher than the life of the belt with the rollers. In the case of gasoline engines when replacing the belt, access to the water pump is fully opened and it is not possible to replace much work, which ultimately reduces the final amount of service. When the pump fails, the volume of work on its replacement will be large and the price of these works will be significant. In the case of a diver pump, it is driven directly to the timing belt that increases the risk of engine damage when the water pump is jammed, the price of repair can be cosmic ... just as some details that the mechanic removes when replacing the belt, it may be necessary to replace. For example, the crankshaft pulley has a rubber damper and with a large wear of the pulley must be replaced. I would also like to pay attention to the spare parts ... those elements that change with our procedure should be of high quality, otherwise it may be necessary to re-interfere, and in some cases expensive repairs in the consequence of the timing of the timing of the MRM.

So, on the basis of the experience of the service received by the RSV, summarize some results. The procedure for replacing the timing belt on these engines does not require special special devices, but as any interference in the critical systems of the engine requires experience, attention, and understanding the work of the car systems. We advise you to entrust these work with experienced mechanics. The technical center of the RSV service has extensive experience with these series, these motors are familiar to us. Come and we will qualitatively and quickly draw all works related to the replacement of the timing of the timing on your car.
Specify the cost of work and spare parts by phone, the article cannot reflect the real prices at the moment.

With respect, RSV service!
Good luck on the roads! See you with a scheduled maintenance (maintenance)!

Cars Hover H3, H5 are one of the most reliable Chinese cars and have high performance features. This makes it possible to exploit them in extreme conditions, which in turn increases the requirements for consumables. Therefore, the replacement of the timing belt on Hover H5 (gasoline) is of great importance for reliable operation of the machine. It can be done independently, the article with detailed instructions and video.

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In what cases is necessary replacement?

The timing belt is part of the gas distribution mechanism and serves to synchronize the operation of the two shafts: crankshaft and distribution. The main task of the belt consists in smoothing the ripple of the engine, the synchronization of the shafts, ensuring the operation of the drives of water and oil pumps. This is a large load that leads to rapid wear.

Detail is a rubber rim, on inner side Which is the special teeth needed for good clutch with gear pulleys. On the HPPE H3, H5 timber belt for gasoline differs from the belt for diesel engines. A rubber product with rounded teeth is installed on the diesel engine, and on gasoline engines, a product with rectangular teeth.

The belt break may have serious consequences for both the engine on gasoline and diesel. When this item is stripped, the synchronization of the shafts disappears, the valve starts to beat the pistons. Thus, the pistons come into disrepair, the surface of the cylinders is scratched, the valve is bent. This can lead to expensive engine repair or replace it. The belt belt itself is also dangerous, it is stretched over time, it is stretched, the teeth are erased, which leads to a deterioration in the operation of the motor, power loss, increasing gasoline consumption.

Cracks on the old belt timing belt

The cause of the breakdown can be:

  • late replacement of consumables;
  • unqualified execution repair work;
  • repair without the use of necessary parts and devices;
  • the use of low-quality consumables.

Signs of cliff product:

  • extraneous sounds when operating the engine;
  • changed color of exhaust gases;
  • motor is not started immediately with difficulties;
  • during motor operation, extraneous vibrations appear.
  1. Conditions in which the car is operated. For example, in urban environments, an uneven load on the engine occurs due to sudden stops and accelerations. On the track, more favorable conditions for the operation of the motor.
  2. Qualitative consumables serve longer, so they have to change them less often.
  3. It is important that the replacement work is made by a good specialist. Since the further operation of the car depends on the quality of the work performed.

The reasons for which the replacement of the consumables is carried out:

  • regulatory replacement of the consumator;
  • oil detection on one of the belt surfaces;
  • the appearance of cracks on the surface;
  • erased teeth;
  • detachment of tissue from rubber;
  • waste material, shaggy side surfaces.

Step-by-step replacement instructions

You can replace the timing belt independently, if you have an idea of \u200b\u200bthe engine device and experience of repair work. At the same time, all the recommendations of the manufacturer should be accurately followed. The procedure lasts about 3-4 hours.

Instruments

To perform work, you need to prepare the tools that should always be at hand:


Stages

  1. First of all, you should delay the car by removing the minus terminal with rechargeable battery. Turn off the entire electrician that will interfere with replacement.
  2. Before starting work, the piston in the first cylinder must be installed in the position of the upper dead point.
  3. Before you continue, make marks on the belts to facilitate the reverse assembly.
  4. Weakening the fastening bolt that fixes the air conditioner belt tension roller. Weave with a tension bolt, remove the air conditioner belt.
  5. Then consistently, weakening the fastening bolts, remove the belts from the gur and the generator.
  6. Next, you need to remove the cooling system fan.
  7. By revealing the fastening bolts, remove the two pulleum of the water pump.
  8. By revealing two bolts, remove the top plastic protection belt vehicle.
  9. Having twisted the four fastening bolts, you need to remove the crankshaft pulley. The pulley damper must be integer.
  10. Next, we unscrew nine bolts that hold the plastic protective cover.
  11. Then to remove the final cover, you need to remove tension roller Air conditioner belt.
  12. After that, we unscrew the bolts and remove the aluminum protection cover, which is attached to the head of the cylinder block.
  13. At the next stage, you need to combine all tags. To do this, scroll the crankshaft. First you need to combine tags on the valve cover and camshaft casing.
  14. Next, we combine the label on the crankshaft gear puck with a label on the balancing shaft.
  15. Fixing with the help of the device crankshaft from turning, you need to remove the toothed pulley of the crankshaft, using screwdrivers or a special device.
  16. Before removing the drive belt of the balancing shaft, you need to put a label of the direction of its movement to correctly install it when installing. After removing the belt, it is necessary to check its condition. If defects are found, it needs to be replaced.
  17. Fixing the camshaft pulley from turning, tighten its fastening bolt.
  18. By blocking the pulley of the balancing shaft, you need to unscrew the nut and remove it.
  19. Next, remove the crankshaft pulley.
  20. Now we start an assembly from the installation of the Balancir pulley.
  21. Next, the sealant needs to lubricate the motor support bracket fastening bolts.
  22. Then, checking the coincidence of the labels on the crankshaft pulleys and the balance sheet with the labels existing on the front casing of the timing belt, you need to wear a balancer on the Balancir and crankshaft.
  23. Using the tensioning roller, the belt tension should be adjusted. By pressing your finger on the belt, you can check the tension, the deflection must be not more than 5-7 mm.
  24. When the required stretch is reached, you need to tighten the tensioner fastening bolt. At the same time, the shaft should not turn.
  25. Fixing the flywheel from turning, install the crankshaft pulley.
  26. Next you need to install an automatic tensioner. If the tensioner rod is removed, it is necessary to insert it. To do this, the tensioner clamp the vice and insert the rod to pose so that the holes on the tensioner and stock match the coincidence.
  27. In the combined holes you need to insert a lock, for example, a wire or clip.
  28. Freeing the tensioner from the vice, put it on the front cover and tighten the fastening bolts.
  29. When installing the tensioning roller, you need to monitor that both holes are located vertically.
  30. We combine tags on the GBC with a label on the camshaft. The labels on the crankshaft must coincide with the labels on the front casing.
  31. Next, you should combine the label on the pump with the installation label.
  32. Having twisted the plug on the cylinder block, you need to insert a screwdriver with a diameter of 8 mm into the hole. If the labels are set correctly, it should enter 6 cm. Otherwise, if it entered only 2-2.5 cm, you need to turn the pump pulley to one turn and check the matching tags. Then insert a screwdriver again. It should remain inserted until the timing belt is completely installed.
  33. We begin the installation of the belt of the gas distribution mechanism from pulling the loop to the crankshaft pulley, then on the rubber roller, the pulley of the camshaft and last on the tensioning roller. Turning the tensioner, you need to tighten the central bolt.
  34. Check all tags again. If everything is in order, pull the screwdriver and insert the plug in its place.
  35. Scroll the crankshaft before combining the labels, first against and then clockwise.
  36. By installing a special device on the tensioner using a dynamometric key, weakening the central tensioner bolt.
  37. Having created a moment in 3.5 nm, you need to hold the tensioner, tighten the central bolt.
  38. Pull the retainer from the automatic tensioner.
  39. Next, we screw the upper and lower protective plastic covers.
  40. At the next stage, we set all the removed pulley on the previous places.
  41. We stretch all the belts of the drives of the combat mechanisms and connect the wiring.
  42. After the assembly is completed, we start the engine and check its work.

On this work on the replacement of the timing belt on the hover H3, H5 end.

Photo Gallery

Video "When you need to change the timing belt"

In this video, it is described in detail, why and when the replacement of the belt of the gas distribution mechanism is performed.

The timing belt has special notches, with which the camshaft and the engine crankshaft are connected. internal combustion. The camshaft serves to open the valves at the top point of the movement of the piston, and the crankshaft ensures the movement of the pistons. That is why synchronization between them is so important.

When is required replacement?

The timing belt on the H5 H5 Happer and the H5 Diesel culp must be changed once every 50-70 thousand mileage kilometers, depending on engine operational conditions. But in addition to the regulated period of replacement, there are also other symptoms, when which the consumility needs to be replaced.

Signs of the need to replace the timing belt:

  • The appearance of black smoke silencer;
  • Vibration power aggregate during the operation of the engine;
  • Difficult launch of the power unit;
  • Detection of outsiders from the internal combustion engine.

If at least one of the above features arises, the first thing should be verified the timing belt. Many motorists replace this element on their own. It suffices to follow clearly set instructions. However, first of all, the expenditure item must be chosen correctly.

Choosing a new belt

The manufacturer recommends installing original components on the car. ConsumablesThe category of which includes the timing belt, it is also desirable to install genuine. But if there is no official dealer in the terrain of the car owner, I do not want to overpay or wait for the order for a long time, you can use high-quality analogues.

Firms that produce quality analogs:

  • CONTITECH;
  • Bosch;
  • Gates;
  • Dayco.

After selecting a suitable consumator on the H5 hover, you can go to the replacement procedure. But it should be borne in mind that the procedure for replacing the timing belt on the engine with gasoline fuel differs from the power unit with diesel fuel. Therefore, two different instructions will be given.

Replacing the timing belt on the H5 H5 2.4 gasoline

Replacing the timing belt on H5 H5 Hover is carried out in the following sequence:

The procedure for replacing the timing belt on the H5 hover gasoline is completed. The process takes about 6-7 hours of operation with proper experience.

Replacement on H5 2.0 Diesel

Step-by-step instruction for replacing the belt of the gas distribution mechanism on the diesel engine:


The procedure for replacing the timing belt to the H5 H5 diesel is completed. It lasts also about 6-7 hours if experience in disassembling / assembling the knots of the car.

Replacing the timing belt on the H3 Hover

Replacing the timing belt on Great Wolf Hover is practically no different. The only difference is located hinged equipment. Otherwise, all tools and instructions are appreciated for Great Wall Hover:

  1. Remove hinged equipment.
  2. Remove the tensioner roller.
  3. Remove the belt.
  4. Make sure that all labels coincided.
  5. Install in reverse sequence.

The procedure in the service costs up to 4,000 rubles, but this can be done independently and while saving money.

Russian country roads are far from ideal, so SUVs in Russia are in great demand. Choosing cars increased passibility Big, but in the budget category it is much poorer.

For a long time, lovers of hunting and fishing for small money could only buy UAZ, but from the beginning of the two thousandths on russian market Chinese cars appeared.

Chinese Cross Great Hell Hover

Prototype crossover Great Wall Hover is japanese car Isuzu AxiomBut the popularity of the IESUD in Russian expanses did not gain. But the hover on the roads is constantly meeting, and in the budget class of SUVs he has a little competitors.

"Chinese" It has a frame design, among all the Great Wover Mark Hover is the flagship model. In serial production chinese car Launched in 2005.

Russians he immediately attracted

Low cost;

Modern design;

Comfort;

Good technical characteristics;

Reliability.

At first, the SUV was produced in China, and since 2006, the grace of Great Wolper is carried out in Russia, in the town of Gzhel near Moscow. In 2010, the crossover was restyled, from the same year the H3 model with 2.0-liter gasoline engine began to be carried out.

In 2011 on automotive market Apartment appeared Great Wall Hover H5 with an updated front facing and a 2.4 liter engine.

Adjacent and weak motors

Initially, three types of power units were installed on Hover:

1. Gasoline motors 2.0 and 2.4 l;

2. Diesels 2.8 l.

Later on Hover H5 there is a diesel engine 2.0 l with a fuel injection system COMMON RAIL., and 2.4-liter gasoline engine 4G64 with a capacity of 130 horse power, was replaced with 4G69 136 hp engine.

All DVS are mitsubishi licensed copies, And there are no complaints about the quality of motors. The main engine Great War Hover H5 is a four-cylinder 16-valve engine of model 4G69, it can work on a 92th gasoline, but still preferably pour fuel AI-95.

4G69 hydrocompensatorstherefore on the engine it is necessary to adjust the valve through every 40-50 thousand kilometers of way. The engine is equipped with a timing belt drive, the frequency of replacement of the parts of the gas distribution of the regulations - after 90 thousand km. With a gentle handling of the car, the engine can pass more than 400 thousand km, some characteristic of "diseases" is not observed.

Review and search for sores in the transmission

The mechanical five-speed gearbox Great War does not differ very high reliability, the transmission on the Chinese car is characterized by a noisy work, fuzzy switching speeds. If MCPP is noise on idling, and when the clutch survival, the sound disappears, then this means that washed the Bearing of the Primary Shaft. Such a defect can manifest itself on a car rather early, by 30-40 thousand km, but usually the box is repaired after the first hundreds of thousands of mileage kilometers.

AISIN production automatic transfers is installed on Hover paired with a 2-liter diesel engine, with automatic transmission There are practically no problems. To "AUTOMA" served long, you need to change on time transmission fluid, it is replaced by approximately 60 thousand km.

Steering and chassis

The suspension on the Chinese SUV is harsh, but the details of the chassis go long. The first failure of the shock absorbers, they usually rent on mileage 70 thousand km. The incomplete plus of the Chinese jeep is that the warm volitional spare parts are cheap, their cost is not even compared with prices for Mercedes or BMW.

The steering rack is out of order increasingly, which cannot be said about the power steering. But if pump thug, I don't have to change the whole gur, it is enough to repair the node, replacing the bearing.

Body details and paintwork

The paint coating of the crossover is not distinguished by high quality, chips paints appear on the body quite quickly. First of all corrosion persisted back wheel arches And that the body does not rust, it is necessary to produce anti-corrosion processing.

What feedback about Great Wall Hover

Car owners about the Chinese vehicle respond well, more often negative opinions can be heard from drivers who have never sat behind the steering wheel of the Chinese SUV.

Of the positive moments, the hosts of cars celebrate:

Reliability, cars basically breaks through the trifles;

Good permeability;

Good design;

Manageability at a decent level;

Spacious salon;

Spacious trunk.

But about Hover positive reviews Not all, there are also some drawbacks in the car:

Middle light lamps are not very bright;

Noise insulation;

Over time, "Ryzhiki" appear on the body;

Car is not too dynamic

Especially with gasoline 2.0 l.

You can buy Great Wheel in an inexpensive, in any case, "Chinese" is cheaper than many analogues. Almost all great Wall Hover owners are satisfied With its cars, large trouble crossover car owners are not delivered.

Timing belt: 1 - Upper Timing belt cover; 2 - the bottom cover of the timing belt; 3 - steering pump bracket; 4 - the crankshaft position sensor; 5 - timing belt; 6 - tensioning roller; 7 - stretch lever; 8 - automatic tensioner; 9 - bypass roller; 10 - oil pump bracket; 11 - crankshaft pulley bolt; 12 - crankshaft pulley; 13,14 - flanges; 15 - tensioning roller; 16 - timing belt; 17 - balancing shaft pulley; 18 - sleeve; 19 - crankshaft pulley; 20 - engine support bracket; 21 - Bolt pulley of the camshaft; 22 - camshaft pulley; 23 - Rear casing belt timing.

1. Disconnect the negative wire from the battery.

2. Set the 1st cylinder piston to the NTT position and remove the generator drive belts, the air conditioner compressor and the steering hydraulic pump.

3. Remove the cooling system fan.

4. Mark the direction of movement of the timing belt to facilitate its further installation.

5. Block the flywheel using the device.

6. Remove the gear pulley of the crankshaft. In the event that it fails to be removed, use the puller.

7. Mark the direction of motion of the belt drive of the balancing shaft and remove it.

8. Install a special device for blocking the balancing shaft pulley.

Checking belt timing

The belt must be carefully checked. If the following defects are detected, the belt must be replaced with a new one:

Hardwood rubber on the outside of the belt. The outer side of the belt is brilliant, ineelastic and so hard that, with a strong pressing of a finger, no trace remains on it;

Cracks 4 in rubber on the outside, crack 2 or detached material, cracks 1 and 3 at the leg legs;

Cracks on the sides of the belt, the side of the belt side are very worn;

Initial stage: Worn the material of the belt side, which was subjected to a larger load (the tissue was hoisted, rubber layered, the color became white; the structure of the material is not determined).

End stage: The fabric on the side surface of the teeth from the side of the larger load is worn and the rubber is completely cable (the width of the tooth has decreased).

Checking the automatic tensioner belt timber

1. Check the tensioner on the absence of leaks. If these are detected, replace it.

2. Check the end of the tensioner rod on the absence of wear and damage. If necessary, replace it.

3. Measure the standing of the rod over the case.

Standard value: 12 mm.


4. Press the tensioner rod with an effort from 98 to 168 N and measure the protrusion of the rod. If the stem session was more than 1 mm or it protrudes over the body less than 12 mm, replace it.

Note: Check the pump status. If necessary - replace.

Installation

11. Using a special device, block the plugging of the camshaft and tighten the bolt of its attachments.

12. Lubricate the engine bracket bolts with a sealant.

13. Install the pulley of the balancing shaft.

14. Align the labels on the pulleys of the crankshaft and balancing shafts with labels on the front casing of the timing belt. Set the belt drive of the balancing shaft on the crankshaft pulleys and balancing shafts.

15. Make sure that the location between the tension pulley center and the bolt center is followed as shown in the figure.

16. Move the tension roller in the direction of the arrow with your finger so as to create the desired belt tension. In this position, tighten the tension roller mounting bolt. When the bolt is tightened, make sure the shaft is not checked. If the shaft is checked, the belt can be stretched overly.

18. Install the crankshaft pulley by blocking the flywheel using a special device.

19. Install the automatic tensioner. If the tensioner rod is in a fully extracted position, set it back to the described procedure. Secure the tensioner in vice. Plug the stem inside the tensioner step by step so that the hole and the rod is compatible with the hole in the tensioner housing.

Attention! Do not remove the steel wire from the tensioner.

24. Make sure the tension roller is installed correctly.

25. Align the labels on the camshaft pulley and the cylinder head.

26. Align the labels on the crankshaft pulley and the front casing.

27. Align the label on the cooling system pump with the installation label.

28. Unscrew the cork on the cylinder block and insert a screwdriver into the hole with a diameter of 8 mm.

28. If the screwdriver entered more than 60 mm, the labels are set correctly. If the depth is only 2025 mm, scroll through the pulley of the cooling system for one revolution and check the combination of tags. Then insert the screwdriver again. Screwdriver must remain inside the hole before full installation timing belt.

29. Install the timing belt on the crankshaft pulley, the roller, the pulley of the camshaft and then on the tensioning roller.

30. Move the tension roller in the direction of the arrow and tighten the central bolt.

31. Make sure all the labels are combined.

32. Remove the screwdriver out of the hole and screw the plug.

33. Scroll through the crankshaft on a quarter turn counterclockwise. Then scroll it clockwise so that the tags are combined.

34. Install a special device with a dynamometric key on the tensioning roller and loosen the central tensioning roller bolt.

35. Create a torque key in 3.5 nm. Holding the tensioning roller, tighten the central bolt.

36. Make two full turns of the crankshaft and leave the engine for 15 minutes. Then make sure that the wire in the automatic tensioner moves easily.

37. If the wire does not move freely in the tensioner, perform a reapplosage procedure of labels.

38. Measure the distance A between the struts of the tensioner and its copus.

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