The cost and time to work is due to the presence of additional equipment, which can also drive the drive mechanism. Replacing the alternator belt Daewoo Matiz better to do every 40 thousand km. In terms of time, the work takes from 30 minutes to 2 hours.
Also, we recommend changing the rollers, including the tensioner. On some models, you may need a special tool to get the correct tension. In any case, before making a decision, contact a car service and diagnose. "Uncle Vasya from the garage" gives advice to a lot of people, who determined by phone what needs to be changed, but the problem turns out to be different.
Price:
car services in St. Petersburg:
When is it time to change:
- a whistle that occurs when the electrical equipment of the car is loaded;
- cracks on the belt;
- loss of elasticity;
- signaling of a decrease in battery charge, when it is fully charged.
Work guarantee- 180 days.
Which to choose:
1. Contitech (Germany)
2. Dayco (Italy)
3. SKF (Sweden)
4. Gates (USA)
5. Flennor (EU))
When buying spare parts from us, we will provide a discount for replacement.
Despite the fact that the Daewoo Matiz alternator belt and other elements are quite reliable, failures still happen. The owner of the car should know how to carry out elementary repairs on your own. All about this in our article.
[ Hide ]
Typical Generator Faults
The vast majority of Daewoo vehicles have two main types of generating devices. These are the generator Matiz, Nexia CS130 and CS121. A similar model is in Gentra's car. There are no cardinal differences, except for the size of the stator. They are even interchangeable.
Unification allows you to carry out basic repairs in the same way, regardless of which model is installed on the Daewoo Matiz. As practice shows, the stator and rotor are both reliable models. In most cases, mechanical damage leads to disruption of their work.
The most common troubles include:
- destruction on the back cover;
- burnout of the diode bridge due to improper washing, ingress of oils and technical liquids on the body.
- burning of the working surface;
- generation of generator brushes.
These problems can lead to others. Thus, the destruction of the bearing leads to strong shock loads on the rotor and stator. Also, because of this, the "plus" of the brushes can be shorted to ground - and as a result, the relay-regulator will burn out.
Troubleshooting methods
Most of these problems are easy to fix. To Daewoo models on sale you can find parts such as a relay-regulator, a diode bridge and bearings on both covers. At the same time, the repair of the front cover with the replacement of the bearing has its own characteristics and difficulties, and also requires special tools. It is better not to deal with them on your own and entrust the repair of the Daewoo Matiz generator to a professional.
As for the other problems mentioned above, the repair is carried out by disassembling the generator. To do this, unscrew the ties, disconnect the front cover by pressing on the latches. In order to repair, you will need tools such as wrenches, a flathead screwdriver, a soldering iron, a hammer may come in handy (to set the plates).
Instructions for replacing the alternator belt
Another common problem is the alternator belt. Fortunately, replacing it is one of the easiest operations. It is not particularly difficult even for those who are not very well versed in how Daewoo generator Matiz.
Periodicity
Checking the condition of the alternator belt and its tension should be regular. As practice shows, this detail is one of those that fail most often. Therefore, experienced craftsmen recommend once a year to check the condition of the strap and, if necessary, replace it.
Unlike timing belts, there is no clear indication of how far a car travels before it needs it. It is necessary to check its tension. But in most cases, under severe operating conditions, replacement is required every 80 tons. Kilometers. In normal same alternator belt Daewoo Nexia withstand from 120 tons km or more.
Stages
The scheme of your actions to replace the alternator strap with Nexia should be as follows:
- first remove the air-conducting sleeve, which is assembled with an additional intake air silencer;
- then check the belt tension by pressing it with your finger between the pulleys;
- with a pressing force of 10 kgf, the belt deflection should be in the range from 10 to 15 mm;
- to adjust the tension, loosen or tighten the mounting bolt to the tension bar;
- if you have a car without air conditioning, then the belt is removed simply after loosening the tension by removing it from the pulleys:
- if the car has air conditioning, you need to remove the drive belt of its compressor, to do this, loosen the nut;
- to install a new belt, all parts are mounted in a ritual order;
- at the same time, tighten the compressor drive belt so that at a pressure of 10 kgf it bends by 5-8 mm.
Video "Repair of the generator Daewoo Matiz"
Daewoo Matiz. Insufficient oil pressure (warning light on insufficient pressure oils)
| Scroll possible faults | Diagnostics | Elimination Methods |
|---|---|---|
| Little oil in the engine | According to the oil level indicator | Add oil |
| Defective oil filter | Substitute a filter with a known good one. | Replace defective oil filter |
| Loose tightening of drive pulley bolt auxiliary units | Check bolt tightness | Tighten the bolt to the prescribed torque |
| Clogging of the oil receiver screen | Inspection | clear the grid |
| Misaligned, clogged oil pump relief valve or weakened valve spring | Inspection when disassembling the oil pump | Clean or replace faulty relief valve. Replace pump |
| Oil pump gear wear | Replace oil pump | |
| Excessive clearance between bearing shells and journals crankshaft | It is determined by measuring parts after disassembling the oil pump (at the service station) | Replace worn liners. Replace or repair crankshaft if necessary |
| Faulty low oil pressure sensor | We unscrew the low oil pressure sensor from the hole in the cylinder head and install a known-good sensor instead. If at the same time the indicator goes out while the engine is running, the inverted sensor is faulty | Replace faulty low oil pressure sensor |
Reasons for drop in oil pressure
There is a light on the instrument panel that indicates emergency oil pressure in the engine. When it lights up, this is a clear sign of a malfunction. We will tell you what to do if the oil pressure lamp lights up and how to fix the problem.
The oil warning light can come on for two different reasons: either low oil pressure or low oil level. But what exactly does it mean to catch fire on dashboard oil light, only the instruction manual will help you find out. Helping us is the fact that, as a rule, budget cars do not have a low oil level indicator, but only low pressure oils.
Insufficient oil pressure
If the oil lamp comes on, it means that the oil pressure in the engine is insufficient. As a rule, it lights up only for a few seconds and does not pose a great threat to the motor. For example, it can light up with a strong roll of the car in a turn or during a cold start in winter.
If the low oil pressure light comes on due to a low oil level, then this level, as a rule, is already critically low. The first thing to do when the oil pressure light comes on is to check for engine oil. If the oil level is below normal, then this is the reason for the ignition of this lamp. This problem is solved simply - you need to add oil to the desired level. If the light goes out, we rejoice, and do not forget to add oil in time, otherwise it can turn into serious problems.
If the oil pressure light is on, but the oil level on the dipstick is OK, then another reason the light could light up is a failed oil pump. It does not do its job of sufficient oil circulation in the engine lubrication system.
In any case, if the oil pressure or low oil level light comes on, the car must be immediately stopped by pulling to the side of the road or to a safer place and muffled. Why do you need to stop right now? Because if the oil in the engine has dried up significantly, then the latter can stop and break down with the prospect of a very expensive repair. Don't forget that oil is very important to keep the engine running. Without oil, the engine will fail very quickly - sometimes in a matter of minutes of operation.
Also, this situation occurs when the engine oil is changed to a new one. After the first start, the oil pressure light may come on. If oil good quality, it should go out after 10-20 seconds. If it does not go out, the reason is a defective or non-working oil filter. It needs to be replaced with a new quality one.
Oil pressure sensor malfunction
Oil pressure on Idling(at about 800 - 900 rpm) should not be less than 0.5 kgf / cm2. Sensors for measuring emergency oil pressure come with a different response range: from 0.4 to 0.8 kgf / cm2. If a sensor with a response value of 0.7 kgf / cm2 is installed on the car, then even at 0.6 kgf / cm2 it will turn on control lamp, signaling a sort of emergency oil pressure in the engine.
To understand whether the oil pressure sensor is to blame for the light bulb or not, you need to increase the crankshaft speed to 1000 rpm at idle. If the light goes out, then the oil pressure in the engine is normal. If not, then you need to contact specialists who will measure the oil pressure with a pressure gauge, connecting it instead of the sensor.
From false positives of the sensor, cleaning helps. It is necessary to unscrew it and thoroughly clean all the oil channels, because the cause of false positives of the sensor may be blockages.
If the oil level is correct and the sensor is OK
First of all, you need to check the oil dipstick and make sure the oil level has not increased since the last check? Does the dipstick smell like gasoline? Perhaps gasoline or antifreeze gets into the engine. Checking the presence of gasoline in the oil is easy, you need to lower the dipstick into the water and see if there are gasoline stains. If so, then you need to contact a car service, it may be necessary to repair the engine.
If there is a malfunction in the engine, which was the ignition of the oil pressure light, this is easy to notice. Engine malfunctions are accompanied by a loss of power, an increase in fuel consumption, exhaust pipe black or blue smoke comes out.
If the oil level is normal, then you should not be afraid of a long indication of low oil pressure, for example, during a cold start. In winter, at low temperatures, this is an absolutely normal effect.
After overnight parking, the oil drains from all highways and thickens. The pump needs a certain time to fill the lines and create the necessary pressure. Oil is supplied to the main and connecting rod journals earlier than to the pressure sensor, so wear of engine parts is excluded. If the oil pressure lamp does not go out for about 3 seconds, this is not dangerous.
What can you do yourself
Engine oil pressure gauge
The problem of low oil pressure is greatly complicated by the relationship of lubricant consumption and level reduction with the overall pressure in the system. In this case, a number of faults can be eliminated independently.
If leaks are found, the problem is fairly easy to localize and fix. For example, an oil leak from under oil filter eliminated by tightening or replacing it. Similarly, the problem with the oil pressure sensor, through which the lubricant flows, is also solved. The sensor is tightened or simply replaced with a new one.
As for oil seal leaks, this will require time, tools and skills. At the same time, you can replace the front or rear crankshaft oil seal with your own hands in your garage with an inspection hole.
Oil leakage from under the valve cover or in the sump area can be eliminated by tightening fasteners, replacing rubber seals, using special engine sealants. Violation of the geometry of the connected planes or damage to the valve cover / sump will indicate the need to replace such parts.
If the coolant enters motor oil, then you can remove the cylinder head yourself and replace the head gasket, while observing all the recommendations regarding the removal and subsequent tightening of the cylinder head. An additional check of the mating planes will indicate whether it is necessary to grind the head of the block. If cracks are found in the cylinder block or head, repairs are also possible.
As for the oil pump, in case of wear, it is better to immediately replace this element with a new one. It is also not recommended to clean the oil receiver, that is, the part is completely changed.
In the event that the problem in the lubrication system is not so obvious, while you have to repair the car yourself, then at the very beginning you should measure the oil pressure in the engine.
To solve the problem, and also taking into account an accurate idea of what the oil pressure in the engine is measured in and how it is done, you need to prepare in advance optional equipment. Note that in the free market there is a ready-made device for measuring oil pressure in the engine.
As an option, a universal oil pressure gauge "Measure". Such a device is quite affordable, has everything you need in the kit. You can also make a similar device with your own hands. This will require a suitable oil-resistant hose, pressure gauge and adapters.
Ready for measurement or homemade device is connected instead of the oil pressure sensor, after which the pressure readings on the pressure gauge are evaluated. Please note that normal hoses should be used when self-manufacturing it is forbidden. The fact is that the oil quickly corrodes the rubber, after which the exfoliated parts can get into the oil system.
Results
The pressure in the lubrication system can drop for many reasons:
-quality of oil or loss of its properties;
- leaks of oil seals, gaskets, seals;
- oil "presses" from the engine (pressure increases due to malfunctions of the crankcase ventilation system);
- Malfunctions of the oil pump, other breakdowns;
- power unit may be heavily worn, etc.
In some cases, drivers resort to using an additive to increase the oil pressure in the engine. For example, XADO revitalizant. According to the manufacturers, such an anti-smoke additive with a revitalizant reduces oil consumption, allows the lubricant to maintain the required viscosity when heated to high temperatures, restores damaged journals and crankshaft liners, etc.
As practice shows, an effective solution to the problem of low pressure additives cannot be considered, but as a temporary measure for old worn out engines, this method may be suitable. I would also like to draw attention to the fact that the blinking of the oil pressure light does not always indicate a problem with the internal combustion engine and its systems.
Rarely, but it happens that electrical problems arise. For this reason, the possibility of damage to electrical components, contacts, pressure sensor or the wiring itself cannot be ruled out.
Finally, we add that to avoid many problems with oil system and the engine is helped by the use of only the recommended oil. It is also necessary to select a lubricant taking into account the individual characteristics of operation. Deserves no less attention correct selection seasonal viscosity index (summer or winter oil)
Engine oil and filters must be changed correctly and done strictly according to the regulations, since an increase in the service interval leads to severe contamination of the lubrication system. Decomposition products and other deposits in this case actively settle on the surfaces of parts and channel walls, clog filters, oil receiver mesh. The oil pump in such conditions may not provide the required pressure, oil starvation occurs and engine wear increases significantly.
Symptoms: the generator does not work, the generator does not work efficiently enough.
Possible reason: damaged or torn drive belt generator.
Instruments: a set of wrenches, a set of sockets, a flat blade screwdriver, a Phillips screwdriver.
The following works are carried out on a flyover or a viewing ditch.
1. To check the tension of the alternator belt, push the belt between the alternator pulley and the crankshaft pulley, measuring the deflection of the alternator belt with a ruler.
Note. The deflection of the alternator belt should not exceed 10 millimeters with a pressing force of 10 kgf. If the deflection exceeds the maximum allowable limits, tighten it following the instructions below.
2. Loosen nut “A” using a “12” wrench, holding the bolt of the left fastening of the generator to the bracket from turning with a second “12” wrench; loosen the bolt "B" of the right fastening of the generator.
3. Loosen the alternator mounting bolt to the adjustment bar using a wrench.
4. Insert a mounting spatula between the generator and its bracket.
5. Wring out the generator from BC, pulling a belt.
6. Tighten the alternator mounting bolt to the adjustment bar.
7. Recheck the alternator belt tension.
Note. Avoid over-tensioning the alternator belt, as this can cause accelerated failure of the alternator bearings.
If signs of wear or tears were found on the alternator belt, the belt should be replaced following the instructions below.
8. Remove the mudguard and remove it from the right front wheel arch.
9. Remove the power steering pump drive belt.
10. Loosen the alternator bracket.
11. Take the generator towards the block of cylinders, using a mounting blade.
12. Remove the alternator drive belt.
13. Install the belt in reverse order.
Pavel Kurakin Motorist
Sometimes situations happen that it is necessary to remove the generator from the Daewoo Matiz car for its repair or replacement. However, we do not always have access to a viewing hole, overpass or lift. Therefore, now we will learn how to replace the generator without additional tools. Thus, we don't need to lift the car, instead working only in engine compartment. All actions will be done from the side of the right wheel.
Getting Started
Opening the hood, we find there. We will need to drain it so that during further dismantling we do not pour it onto the floor. First, prepare a small container to collect the coolant. Enough and bottles of soda water.
We remove the connector from the generator and the boot near the right wheel
So, disconnect the pipe that leads from the expansion tank to throttle. To do this, we squeeze the clamp with pliers, pulling it back a little. This will allow us to remove the already named upper pipe. We move the clamp closer to the motor shield for convenient drainage and draining of the liquid from the nozzle into the bottle or canister that was previously prepared. Since there is practically no pressure in the nozzle, you can not be afraid that it will jump out of the tank. To drain the liquid more efficiently, start the engine and wait until all the antifreeze is drained.
Now we can take off expansion tank. Remove clamps from battery to avoid possible short circuit. Now you can remove the second upper pipe, as well as raise the power steering reservoir. This will allow you to slightly move the expansion tank towards you and dismantle the lower pipe by moving the clamping clamp with pliers. Now you can completely remove the tank, which we do. We remove all the pipes to the side to get free access to the generator.
On the way to the generator
Next, disconnect the fuel line from the fuel rail. To do this, press two clamps on both sides of the fuel line. Raise the clamps up until they click and lower them back. So, we disconnected the fuel line from the ramp.
The alternator has one electrical connector that goes to the battery charge indicator light. We will need to disconnect it. A wire (plus) is fixed on the nearby nose outlet, which can be disconnected by unscrewing the nut with a 10 wrench. We need to unscrew the alternator tension bolt and two bolts securing the alternator bar.
We remove the upper bar and monitor the fuel rail, the tube of which can bend during inaccurate work. On the generator itself there is a bolt and a strap mount. To dismantle them, you need to use a key for 12. Next, remove the boot under the generator, which is held on by two nuts for a 10 head and one bolt.
Now we got directly to the generator itself. It has a bolt on one side and a bolt and nut on the other. To dismantle the generator, we will need to unscrew the bolt from the rear bracket of the engine mount. Don't worry, the engine won't warp. Also, you will need to remove the alternator belt.
If necessary, you can replace it if it is damaged.
Now we need to unscrew the two support mounting bolts that go under head 12. If they are not unscrewed very well, you can use WD-40. On the bolt, which is closer to the center of the engine, there is a wire to ground. Don't forget to plug it back in when you're reassembling.
Having previously removed the bolt of the support (however, it can not be completely unscrewed, but only slightly loosened to a noticeable backlash), we take out the generator through the hole between the pallet and right side spar. When disconnecting the rear engine mount, there must be enough space for dismantling the generator.
After we managed to remove the generator, you can start repairing or replacing it. The steps for reinstalling the generator are directly opposite to those already completed. Of course, this way of accessing the generator is not as convenient as when working with a lift, but it allows you to quickly repair it, being far from the car service.
