The design of the gas distribution mechanism on the VAZ 2115 car is identical to the previous modifications 2114, 2112, 2110. The main purpose of the timing gear is to transmit torque from the crankshaft to the camshafts for the subsequent movement of the car.
During the systematic operation of a technical device, the drive often fails. At high speeds and rpm, the belt breaks into pieces, blocking the operation of the cylinder head and valve mechanism. There are frequent cases of holes in the block and valve bends.
The process of replacing the drive yourself is not at all complicated, but it requires attentiveness on the part of the technician. Violation of technology is not acceptable. If you encounter any difficulties with repairs, contact a service station specialist for help.
On VAZ 2115 cars a toothed belt is pre-installed. Unlike wedge and poly-wedge, it has a long service life. The cost of the belt is 10% higher than analogues.
Early models of VAZs were equipped with chain drives, but they are not as efficient and have a higher noise level during operation.
Replacing the timing belt of VAZ 2113, 2114 and 2115 with your own hands
Replacing the timing belt with your own hands on VAZ 2113, 2114, 2115 cars, in the cylinder head of which 8 valves are installed, is relevant today for many owners of cars of these brands.
This operation cannot be called complicated, since repairs can be easily carried out in a garage or on any flat area without the use of special equipment. Before starting work, you should prepare the necessary spare parts:
- Timing belt, article number 21080-1006040-82.
- Tensioner roller, article number 830900AE2 (2108-1006120).
- Pump in the engine cooling system, article number 2108-1307010.
Experts recommend replacing the timing belt, tensioner and pump in the cooling system at the same time, since problems with this unit most often lead to malfunctions in the valve mechanism. You will need tools and accessories:
- car jack;
- car body stand;
- wheel chocks;
- set of wrenches;
- container for draining coolant;
- rags.
Checking the set ignition
To check the ignition on an 8-valve engine, an injector, you should prepare:
- Multimeter.
- Set of keys and screwdrivers.
- Pliers (necessarily with insulated handles).
Attention! Due to the lack of special equipment, the described method can only test the operation of the circuits. Diagnostics of the microprocessor part will not be available.
- When the ignition is turned off, check how tightly the high voltage wires are seated and what contact is in the module.
- Remove the connector from the module, connect a multimeter (monitoring mode should be low AC) to pins C and B, make sure there is voltage. Check the coil (2nd and 4th contacts).
- Check the functionality of high-voltage wires. Install a working spark plug in each cap in turn, attach one end to the block and crank the engine with the starter. The presence of a spark signals that everything is normal. Its absence on each wire means the module is faulty.
If you managed to set the ignition correctly on the VAZ model and this was confirmed by the test, but problems are still observed, you need to check the power system.
Preparatory work
To replace the VAZ 2114 timing belt with your own hands, you will need a lift, an inspection hole in the garage. When there is neither one nor the other, any flat area will do.
The car is placed at the work site, the handbrake cable is tightened, and the gear shift lever is placed in the neutral position. Wheel chocks must be installed under the rear wheels. Using a wheel wrench, tear off the wheel bolts on the wheel in the front of the car on the right side, lift the vehicle with a car manual lift, place a reliable stop under the body and dismantle the wheel. Now you can begin the operation of replacing the timing belt on a VAZ 2114 8 valve.
PURPOSE
It is important to note that such 8-valve engines were installed on all (almost) VAZ models, so this manual is relevant for cars with such an engine, if you have a 16-valve engine, then look, replacing the timing belt on a VAZ 21154 is described a little lower .
So:
- The timing belt is the most important element of the gas distribution mechanism; it is responsible for the timely injection of the fuel-air mixture and the emission of exhaust gases
- Its breakage is dangerous, since damage to the valves and even pistons is possible, after which a major overhaul may be required with the replacement of the piston group or the cylinder head - the price of inattention
- It is a rubber-metal belt with teeth on the inside; the teeth firmly engage the camshaft and crankshaft gears to ensure their synchronous operation.
About the procedure for doing the replacement yourself
Open the engine compartment hood and disconnect the terminals on the battery. Further work is carried out in this order:
- Using a “10” key, unscrew the screws securing the plastic cover of the front part of the timing mechanism and remove it from the engine.
To loosen the tension of the generator set drive, take the key to “13”, loosen the tension, and dismantle the generator belt.
Now you need to set the control marks in the drive. To do this, the assistant uses improvised means to rotate the crankshaft pulley, and the driver controls the location of the installation marks. One of them is on the camshaft pulley and the cover behind the pulley, the second is on the cylinder block and the crankshaft pulley.
To ensure that the marks are installed correctly, remove the rubber plug on the clutch housing. In the window that appears, a mark on the engine flywheel should be visible, which coincides with the mark on the clutch housing.
- The time has come to remove the engine crankshaft pulley. It is necessary to stop it from turning. To do this, engage first gear and press the brake pedal. After this, use a socket wrench to “17” to unscrew the pulley mounting bolt and remove it from the engine.
- To remove a worn belt, you need to loosen its tension. This is done by unscrewing the tensioner roller fastening bolt, then turning the roller to the left and dismantling the belt.
- When it is planned to replace the tension roller and cooling system pumps, they are removed from the engine. Before this, the engine cooling system fluid is drained.
Features of labeling
Before installing another timing belt, it is better to set the crankshaft and camshaft to the specified marks from the very beginning. We set the gears to 0 position. Points A, B, C, D, E, F must match as shown in the picture. After this, you need to set the marks on the camshafts and the belt casing in the same position.
Timing belt tension diagram
To check the location of the crankshaft, remove the plug from the box, which is installed under the thermostat, and look for the flywheel. If the marks on the camshaft and the casing match, then there should be a match in the cut on the flywheel and on the metal casing.
All alignments must be clear, the marks must match for proper operation of the belt. After the mark is installed on the flywheel, it must be fixed in this position so as not to break off the thread. And then, as mentioned, you can begin to tension and adjust the timing belt.
Installing a new belt
Installation of the timing belt VAZ 2113, 2114, 2115 8 valves is carried out in the reverse order of removing the worn part. Before starting work, carefully check the position of the timing marks in the timing mechanism drive again. Failure to perform this check may damage valve train components in the cylinder head. There are known cases where, in addition to valves, pistons and, in some cases, connecting rods were damaged. Install the adjusting washer first, then the tensioner roller, screw the nut onto the bolt securing it, but do not tighten it. When the engine cooling system pump is changed, a new spare part is installed. Next, the order of work will be as follows:
Installation begins with the crankshaft pulley of the power unit.
Next, they cover the pump pulley, circle the roller in the tensioner, and cover the belt on the camshaft pulley.
At this point, the repair work done by yourself can be considered complete. The belt in the drive can be replaced by contacting a specialized center, but the price for such work will start from 1000 rubles. You can save on repairs by replacing the belt yourself, following the instructions provided and the advice of specialists.
Also watch the video of replacing the timing belt on a VAZ 2113, 2114, 2115:
Source
Diagnostics
Diagnostics must be carried out every 20,000 km of the vehicle. To do this, remove the protective cover and inspect the belt. The belt should not have chips, tears or cracks. Also, it should not have unraveling threads, etc. After inspecting the belt, it is necessary to inspect the rollers and listen to them with the engine running for noise.
Old cracked timing belt
It is necessary to inspect the alignment of the belt relative to the camshaft pulley, crankshaft, pump and rollers.
Replacing the timing belt on VAZ 2113, VAZ 2114, VAZ 2115
The timing belt synchronizes engine operation. Without it, the car simply won’t start, and if it was working and the belt breaks or falls off, the engine will instantly stall. And if the engine bends the valves, it will not only stall, but also bend the valves. True, this does not apply to 8-valve cars of the Samara-2 family. The belt must be changed on time, its condition monitored and maintenance carried out. Belt rupture, flying off and other troubles depend on the quality of the belt and the pump. We recommend that you always carry a new belt with you in the trunk, because replacement is a simple and short process. This prospect is much more pleasant than a breakdown far from home, garage or service station. Here only a tug or tow truck will save you.
Note! You will need the following tools: spanners, a 10mm socket wrench, a mounting spade (sold at a reasonable price at a car dealer, but a thick, strong screwdriver will do instead), a special wrench for turning the tension roller (two thin drills and a screwdriver will do instead) , knob with cap heads.
16 VALVE ENGINE
On sixteen valve engines, in contrast to eight valve engines, when the timing belt breaks, serious consequences occur:
- Since a break or a belt slipping through a tooth (or several teeth) is almost one hundred percent likely to occur in pistons with valves
- This definitely leads to bending of the latter, and therefore major repairs are not very cheap
- That is why the instructions require checking the condition of the timing belt drive and replacing it in a timely manner.
- You should not forget about the quality of domestic spare parts, so you should take this issue seriously
- It is prescribed to check the condition of the belt every 15 thousand kilometers and replace it after 50 thousand or earlier, follow these rules
Diagram of the gas distribution of a 16-valve engine
- To visually assess the condition of the belt, pry off the plug with a screwdriver, it is located on the front drive cover
Replacing the timing belt on a VAZ 2113-VAZ 2115
Removal
1) First, remove the plastic cover that covers the belt from dirt, various types of water and lubricants. The cover is removed as follows: take a wrench or socket wrench and unscrew the three bolts securing the cover (in the bottom photo the bolts are already unscrewed). Two bolts are present on the side and hold the cover in place, and one is located in the central part. By unscrewing them, you can remove the cover from the car engine.
2) Now turn off the power to the car by disconnecting the negative terminal from the battery. Then remove the alternator belt - read the article for details: “Replacing the alternator belt on a VAZ.” Set the piston of the fourth and first cylinders to TDC (top dead center). Simply put, place both pistons completely straight and without angles up. The publication will be useful to you: “Installing the piston of the fourth cylinder at TDC on a car.”
3) Then take a “13” wrench in your hands and use it to slightly loosen the nut securing the tension roller. Loosen until the roller begins to rotate. Then turn the roller by hand so that the belt loosens. Grasp the belt and carefully remove it from the rollers and pulleys. You need to start from the top, with the camshaft pulley. It will not be possible to remove all the pulleys, so only release the belt at the top.
4) Next, remove the front right wheel (removal instructions are available here: “Correct replacement of wheels on modern cars”). Now take a socket wrench or any other wrench that can unscrew the bolt securing the generator drive pulley (the pulley is indicated by the red arrow).
Note! The bolt is unscrewed with the help of a second person (assistant) and a mounting spatula (or a thick screwdriver with a straight blade). From the left side (in the direction of travel of the car) of the clutch housing, remove the plug marked in red. Then a spatula or screwdriver is inserted between the teeth of the flywheel (the teeth are indicated in blue) - the flywheel is kept from turning. You will have to use force, the main thing is not to overdo it. After unscrewing the bolt, remove the pulley and set it aside!
