We change the timing belt on a Daewoo Matiz with our own hands. Replacing the timing belt on Daewoo Matiz

Replacing the timing drive on a Daewoo Matiz 0.8 must be done within the time limits regulated by the vehicle manufacturer. To do this, you can make a visit to service center, where the repairs will be carried out by professionals. But you can replace the timing belt yourself, if you have the desire to do so. This article will be of interest to those who want to do everything themselves, without additional expenses for specialists. Here we will talk about how to replace this consumable yourself.

The timing belt drive is a rim made of rubber with teeth inside it. With their help, the belt drive engages with the gears. The main purpose of the belt is to synchronize the operation of the shafts. The belt must be made of high quality material. Cheap consumables quickly fail, which is fraught with quite serious consequences for the condition of the car.

Regulations

It is necessary to periodically inspect the condition of the belt. If this is not done, the consumable may break. This is already a serious reason to overhaul the car. If the belt breaks, the valves will meet the pistons. Not only will they suffer from this, but also the cylinders. The manufacturer of Daewoo Matiz says that replacing the timing gear will become necessary after 60,000 km. Premature failure of the belt drive, however, cannot be ruled out either. The belt may wear out its service life ahead of schedule, and there may be several reasons for this. Not all of us always follow the driving rules and drive only at a certain speed. Extreme driving is the hobby of many, many modern drivers, but excessive loads on the engine will certainly cause premature belt wear. The weather conditions in which we operate the car also often leave much to be desired. This also does not have a positive effect on the condition of the belt. These and some other factors may cause the belt to be replaced before the time specified by the manufacturer.

Therefore, look under the hood of your car as often as possible to detect belt wear at an early stage.

But what signs can indicate that the belt drive has already exhausted its service life, and it is high time to change it:

• the structure of the belt began to crack, breaks and deep scratches appeared on it;
• the ends became damp;
• the fabric began to delaminate;
• the surface was covered with oil stains.

If these and some other defects are detected, the timing belt drive needs to be changed. If this is not done, then you will have to pay a considerable amount to repair your car.

Replacing the belt drive yourself

Let's first decide what we will definitely need when carrying out this procedure:

• set of horn keys;
• screwdrivers with different tips;
• jack;
• new belt;
• new o-rings;
• oil seals;
• Don't forget about rags.

A new belt should only be purchased from trusted stores. A low-quality consumable will fail early and will have to be replaced with a new one again.

1. So, let's start the repair and first of all dismantle the right front wheel. Then disconnect the left terminal from the battery. This way we de-energize the car, completely protecting ourselves.
2. In order to remove the protective housing, we will have to unscrew 2 bolts. We do this and remove the casing.
3. Now we have access to the belts, and we begin to dismantle the hanging belts. To remove the strap, we will have to move the generator to the side, having first unscrewed the mounting bolt.
4. Remove the power steering belt. To do this you will have to unscrew 3 bolts.
5. At the distribution and crankshaft we should set the top dead center.

6. Now you need to remove the oil level dipstick.
7. Unscrew the crankshaft mounting bolt and remove it along with the pulley. In this case, the crankshaft should be in a fixed position. To fix it, you can use a large screwdriver.
8. Remove the housing and gain access to the timing belt.
9. Now you need to loosen the tension roller. Then the old belt can be removed, holding the roller from turning.
10. Then we proceed to removing the crankshaft pulley.
11. The tension roller is dismantled along with the tension spring.
12. If any defects are found in the oil pump o-ring, it will also need to be replaced.
13. Now we place marks on the oil pump and crankshaft pulley.
14. We also set marks on the oil pump and camshaft pulley.

15. Now the tension roller can be installed in its place. Once installed, it should be moved to the side for now so that it does not interfere with the installation process of the belt.
16. Put on the timing belt.
17. Check that the marks match by turning the crankshaft pulley to the right 2 turns.
18. Tighten the tension roller bolt until it stops.
19. Reassembly of the remaining units must be performed in the reverse order.

Daewoo recommends checking the timing belt on the Matiz every 30 thousand km. and change it every 90 thousand km. If cracks, creases, tears or traces of oil appear on the belt, the replacement interval should be shortened. The work does not require any special tools; ordinary kits are quite sufficient. wrenches and socket heads. The only difficulty can be unscrewing and tightening the crankshaft bolt with the right torque, just like on any other machine.
The layout of the engine compartment is quite dense, but there are no particular difficulties with access to components and assemblies.

First you need to remove the top cover covering the timing belt. It is secured with 10mm head bolts.

Remove the top cover. Next, you need to loosen the tension on the drive belts of the generator, power steering and air conditioning and remove them.

To access the bottom of the engine, you need to hang out and remove the right front wheel. There is a protective cover behind it, which also needs to be removed. The generator fasteners often become sour, so I recommend loosening the lower generator mounting bolt to loosen the belt.

Remove the hanging straps. We set the tags. It looks like this on the camshaft pulley.

On drive pulley There is a risk on the generator, it should coincide with mark 0 on the lower timing case cover.

Unscrew the crankshaft bolt and remove the attachment drive pulleys.

In order to remove the lower belt cover, you need to remove the tube and the oil dipstick itself. The cover itself is secured with bolts with a 10mm head. Remove.

Unscrew the tension roller and remove the timing belt.

We install a new belt and roller. Nice belts also made by Gates.

The tension roller is semi-automatic, that is, the belt tension is set by the roller spring; you only need to tighten the fixing bolt during installation with a force of 15-23 Nm. After installing the belt, you need to make 2 revolutions of the crankshaft and check that the marks match. It is located here on the lower timing pulley.

We assemble everything in reverse order. The lower crankshaft bolt is tightened with a force of 65-75 Nm.

Video:

The process of operating a Daewoo Matiz car is impossible without replacing the timing belt after a certain mileage. If this condition is not met, the car owner may incur additional costs for major repairs. power unit cars. Replacing the belt is carried out by specialists at repair centers or independently. Guarantee correct replacement worn parts will set the timing mark.

This “baby” is installed gasoline engine with three cylinders, it has a working volume of only 800 cm3. Later, a liter power unit began to be installed on this machine. The cylinder block is cast from cast iron, the cylinder head is made of aluminum alloy. The operation of each cylinder is ensured by two valves. One each on the inlet and outlet channels. Engine power is 52 horsepower, which is more than enough for a small car. The camshaft is located in the upper part of the cylinder head and is driven by a toothed belt drive.

Engine Daewoo Matiz

To achieve high engine efficiency, a high degree of compression of the working mixture in the cylinders was selected. This was achieved by reducing the size of the combustion chamber, so if the belt drive breaks, the valves can meet the piston heads, which entails damage to the valves, pistons, connecting rods, and other parts of the crank mechanism. The car's operating instructions instruct owners to change worn timing drive parts with a mileage of no more than 60 thousand km.

Most owners complete this operation before the specified time. This depends on the operating conditions of the machine and its technical condition. In general, the engine has a long service life; it can last more than 200 thousand kilometers. The disadvantages of the engine include frequent distributor failures in the ignition system. After switching to an injection power system, such problems are no longer observed.

Why is it important to align the timing marks?

It is impossible to obtain full performance from the specified motor parameters without meeting certain conditions. One of them is correct installation valve timing. For this purpose, there are installation marks in the timing mechanism drive. Without them, it is impossible to correctly set the position of the camshaft relative to the crankshaft. If the position of the gear is shifted even by one tooth, the engine operating parameters will be greatly impaired. The ignition will be set early or late. This will affect not only the parameters of the motor, but also its technical condition. Carrying out the operation of installing the marks of the timing drive mechanism is not a difficult operation, but it requires care when performing it. You can read more about the belt replacement procedure in

This part in the cylinder head is responsible for opening and closing valves in the intake and exhaust channels. Only complete filling of the cylinders with the air-fuel mixture and subsequent removal of exhaust gases will ensure that the specified engine parameters are obtained. The camshaft is driven by a pulley, which is driven by the rotation of a toothed belt. The correct installation of the pulley on the camshaft is ensured by a pin that will not allow it to rotate arbitrarily relative to the shaft.

In order for the cams to open or close the valves at the right time, installation marks are applied to the timing mechanism drive. The upper inner part of the protective roof has an arrow on the body, obtained by stamping during its manufacture. The camshaft pulley also has a mark, which is a mark on one of the teeth. The pulley should be rotated until the mark and the arrow are directed exactly opposite each other. After this, you can continue working further. The mark is installed with the belt removed, otherwise the motor can be damaged. In this case, you should carefully inspect the shaft seal; if engine oil leaks through the seal, it should be replaced with a new product.

When is it open? inlet valve, the piston must be at top dead center so that when it moves down, the cylinder is filled with the working mixture. The piston is driven by the crankshaft through a connecting rod. If the operation of the crankshaft is not synchronized with the camshaft, you can not only fail to start the car’s power unit, but also disable it for a long period. To prevent this from happening, installation marks are applied. The shaft pulley is installed through a key; it will not be able to rotate arbitrarily. It has a tooth with a notch, which was obtained during the manufacturing process of the pulley.

The crankshaft oil seal protective cover also has an arrow-shaped mark obtained during casting. The shaft together with the pulley is rotated until the mark on the tooth is located exactly opposite the mark on the oil seal cover. This operation should be performed with the timing belt removed to prevent the pistons from meeting the valves. If there are signs of leaks motor oil on the oil seal cover, it should be replaced, otherwise the lubricant will speed up the release drive belt out of service.

If the marks don't match

This problem can occur in two cases:

1. A new power unit is being assembled or after repair.
2. The drive belt has broken.

If in the first case there are no problems for the motor, then if the belt breaks while the engine is running, parts of the crank mechanism will break. To avoid such problems, you should carefully select spare parts and perform high-quality Maintenance motor, carry out timely replacement of worn parts.

If you hear sounds from under the hood, it means replacing the timing belt with Daewoo Matiz not far away. The topic is really relevant, since the movement of the car directly depends on the stability of the operation of this unit. In other words, if there is no rotation between the shafts in the motor, the car will not be able to move.

A belt break at speed can lead to to engine jamming, and extraordinary major repairs. This can happen to any driver, regardless of the make of the car or the frequency of technical inspection, however, if you do not violate the schedule established by the manufacturer. Let's look at the option of replacing the node together.

Replacement timing and sequence of actions

The timing belt on Daewoo Matiz is replaced every 60,000 km. mileage, according to the recommendations of the instructions, which do not take into account the peculiarities of climatic conditions and the driver’s driving style. If we take into account the quality and the brand itself, then the period is very long; experienced drivers recommend 40,000-45,000 km. mileage or 3 years without mileage limitation.

The prerequisites for imminent death are:

• periodic sounds coming from under the hood;
• sudden engine stop.

F8CV engine on a car Daewoo Matiz

Small city hatchback Daewoo Matiz has been done since 1998, thanks to low consumption gasoline, its own maneuverability and reliability, the car has gained great popularity in Russia. Daewoo engine Matiz 0.8 is the most basic unit that was installed on this machine.

The motor has mass positive properties, but it also has quite serious shortcomings. In this article we will look at the pros and cons of a small engine, its properties and repair features.

Engine F8CV

Three cylinder engine internal combustion 0.8 l began to be installed on Daewoo Matiz from the very beginning of the production of this car, and at first it was the only power unit " Matiz" Replacing the timing belt for Renault Logan 1.4 and 1.6 8 and 16. In 2003, the car also received an internal combustion engine with a volume of 1.0 liters (64 hp), and it was already 4-cylinder. 3-cylinder S-TEC engine for Korean car Developed jointly by Daewoo Motors and Suzuki, it is intended for use in small and compact cars.

The 0.8 liter engine has a somewhat unusual sound; it works as if it were a motorcycle engine. Despite the low power, Daewoo Matiz With the power unit, the F8CV picks up speed quite quickly - for the small weight of the car (less than one ton), the engine is completely enough.

Daewoo engine Matiz 0.8: technical specifications

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The F8CV internal combustion engine cylinder block is cast from cast iron, the head cylinder block duralumin, two valves are installed in each combustion chamber. The placement of the camshaft in the engine is top, the shaft is located in the cylinder head bed. The timing drive is a belt drive; the rollers and belt need to be changed every 40 thousand km. If you do not follow the replacement regulations, the belt may break, and in this case in the head cylinder block valves bend. It is impossible to allow the belt drive to break - the meeting of the valves with the pistons can render the parts of the cylinder-piston group unusable, and then repairs will be expensive.

At the Daewoo engine Matiz 0.8 technical properties following:

• Volume – 796 cm³;
• power – 52 l. With.;
• number of cylinders – 3;
• the total number of valves in the cylinder head is 6;
• diameter of standard pistons – 68.5 mm;
• compression ratio – 9.2;
• piston stroke – 72 mm;
• the fuel used is AI-92;
• cooling – liquid;
• power supply system – injector (distributed injection).

The crankshaft is installed in the cylinder block on 4 supports, 4 caps are tightened with bolts on top. Shaft journal diameter:

• indigenous – 44 mm (-0.02 mm);
• connecting rod – 38 mm (-0.02 mm).

If the crankshaft shows wear, the crankshaft needs to be ground. There are repair sizes for main and connecting rod bearings:

• 1st repair – 0.25 mm;
• 2nd repair – 0.5 mm.

The engine also has repair sizes for the pistons:

• 68.75 mm (0.25 mm) – 1st repair;
• 69.00 mm (0.5 mm) – 2nd repair.

As the cylinder liners of the block wear out, they are bored; if boring is no longer possible for the last repair, the BC needs to be relined or replacement block.

Typical faults of the F8CV engine

The Matiz 0.8 engine has a good service life - with careful operation and timely maintenance, the service life of the internal combustion engine is on average 200 thousand km. But the engine has its own corresponding diseases, more frequent breakdowns. On the first Daewoo cars Matiz a distributor was installed, and this part in the ignition system was not particularly reliable. Often, due to a faulty distributor, the engine stopped starting, and because the distributor was irreparable, it had to be replaced. Replacing the timing belt Renault Logan 1.6 8 valves and 1.4: marks. Since 2008, F8CV engines went without distributors - the ECU began to control the ignition, so problems with starting the internal combustion engine decreased. Despite the fairly high reliability, the engine Daewoo Matiz 0.8 often:

• the crankshaft is knocking;
• piston partitions explode under piston rings;
• The cylinder head fails.

But all these severe breakdowns occur only through the fault of motorists. The crankshaft knocks mainly due to overloads and the use of low-quality engine oil. For some reason, drivers believe that if the engine is “frivolous”, then there is no need to properly maintain it. The partitions under the piston rings on the pistons always burst due to overheating, for the same reason cracks appear in the combustion chambers of the head cylinder block.

"GT" Daewoo Matiz 0.8l Replacement timing belt and roller.

Read also

What are the dangers of a broken belt? timing belt? Do valves bend when the belt breaks? timing belt? If yes, which ones? Let's answer all these questions.

Broken timing belt Matiz: special case.

Replacement belt timing belt Daewoo Matiz.

The main diseases of F8CV often manifest themselves not so much in the motor itself, but in the attachments. The most painful place here is the generator; failure occurs especially often diode bridge. Parts most often fail in conditions of high humidity; in other cases, the generator may require repairs already at 50 thousand km.

The starter on the Matiz lasts longer; it may require repairs somewhere after 80-100 thousand km. However, on a Korean car, repairing attachments is not always advisable - the price of spare parts is low, and in some cases it is more profitable to completely replace the entire assembly than to waste time on repairing the same generator or starter.

Daewoo engine repair Matiz 0.8

Repairing a 0.8 liter engine on a Matiz is not difficult - the engine design is simple, many drivers can figure out the engine on their own. Repair Daewoo engine Matiz 0.8 can be either current or major; current repairs include:

• adjustment of valves;
• replacement cylinder head gaskets;
• replacement piston rings;
• eliminating oil leaks;
• replacing the oil pump.

Overhaul is required if the motor has already served its intended service life, or there are serious breakdowns:

• the crankshaft knocked;
• cylinder liners are worn.

To overhaul the engine, the power unit must be removed. After removing the internal combustion engine, worn parts should be discarded and replaced with new ones. Communities › Renault Dacia Logan Club › Blog › Timing belt replacement 1.4 8 marks. lower Logan 2007 at. After repair, the engine will need to be run in:

• limit the maximum number of revolutions;
• do not overload the engine.

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Typically the break-in period lasts 2-3 thousand km. At first, the engine may consume oil, but then the rings rub against the liners, and consumption returns to normal. If the internal combustion engine continues to smoke and burns little, most likely, a secondary disassembly of the power unit will be required. There may be several reasons for the defect:

Replacement timing belt Daewoo Matiz with engine 0.8

Many car owners Matiz» For engine repairs, they turn to car repair shops, including entrusting the mechanics with replacing the timing belt. But the work of replacing parts of the gas distribution mechanism is not very difficult, and if you have even minor plumbing skills, you can do it yourself. The most important thing in this matter is to correctly set the marks on the distribution and crankshaft- if they are set incorrectly, the valves will bend, and the repair will then be much more serious.

We replace the timing belt on the F8CV engine as follows:

• insert the tension roller into the fixing hole and tighten the bolt;
• tighten the bolt and move the roller as far as possible to the side so that you can easily install the belt;
• Having installed the belt, we tighten it;
• We check the marks match and perform assembly.

Adjustment of valves

On the engine Daewoo Matiz with a volume of 0.8 liters there are no hydraulic compensators, so the valves are adjusted manually. Typically, such an operation should be carried out once every 50 thousand kilometers; you can also adjust the valves yourself. Replacing the timing belt with Renault Logan 1.6 8 valves p. The sequence of operations here is as follows:

Close the valve cover, start the engine, listen to how the engine works. During adjustment, you need to pay attention to the condition of the camshaft cams, and if there is wear on them, it will not be possible to adjust the valves (they will knock) - in this case, you need to prepare to replace the camshaft.