On VAZ 2108, 21081, 21083, 2109, 21091, 21093, 21099 cars with a 37.3701 generator, it is recommended to replace its drive belt once every 30,000 km.
Check tension and condition once every 15,000 km. — Socket wrench or socket “17”
— Socket wrench or socket “19”
— Mounting tool or large screwdriver
— New generator drive belt 37.3701
Preparatory work
— De-energize the generator (remove the “negative” terminal from the battery terminal)
The procedure for replacing the alternator drive belt 37.3701 for VAZ 2108, 2109, 21099 cars
The 37.3701 alternator drive belt is tensioned on the alternator pulley and on the engine crankshaft pulley (which drives it), so we will have to loosen its tension, then remove it, install a new belt and adjust the tension.
— Loosen the nut on the bolt securing the generator to the bracket
We use a socket or socket wrench set to “19”. On VAZ 2108, 2109, 21099 cars, access to the nut is possible from the engine compartment. There is no need to remove the protection and mudguards of the engine compartment. We do not completely unscrew the nut, but only loosen it a little.
— Loosen the nut securing the generator to the tension bar
We use a socket wrench or a “17” socket. Access to the nut is also free. We do not completely unscrew the nut, but only loosen it a little.
— Move the generator towards the engine
You can move it by hand, or you can use a screwdriver by inserting it into the hole in the tension bar and using it as a lever. We move the generator towards the engine by 3-4 cm. This will be enough to loosen its tension and remove it from the pulleys.
— Remove the old generator drive belt
We remove it by hand from the generator pulley, and then from the pulley on the engine crankshaft.
Alternator drive belt for VAZ car
Drive belt for alternator, power steering, timing belt and air conditioner...
Hello dear readers of the blog RtiIvaz.ru. Let's talk today about the generator drive belt, an auto repair kit that should always be kept in stock. A drive belt is an effectively low-cost means of transmitting rotation, which is created by the movement of an engine shaft, to engine auxiliaries such as a generator.
One rubber drive belt drives several units at once: generator, pump, timing belt, power steering pump, air conditioning compressor, radiator fan. When operating a car, it is necessary to regularly check the condition of the tires, as well as the tension. To avoid engine breakdowns, you need to replace rubber repair kits in accordance with the machine's maintenance instructions.
Video:
Automotive rubber drive belts, simply put, come in several types - wide, narrow, toothed, smooth, each car has its own size and shape. To reduce wear on the side parts and provide integrity, wrapped ones are used; cotton and nylon are used as the outer covering. Toothed belts apply force through transverse teeth and a drive mechanism, maintaining the specified shaft alignment. When operating a car, it is not recommended to lubricate them with oil; they actually do not stretch or vibrate, and last longer than smooth ones.
With the improvement of technology, various types of repair kits began to be produced. For injection cars, multi-strand wide ones are produced, which consist of several drive belts welded together. Due to this design, the load is evenly distributed between the streams; as a result, repair kits for rubber products have an increased service life of the vehicle. It can simultaneously rotate the pulley of the generator, power steering, and air conditioning compressor.
The V-belt is designed to accurately match the rotation speeds of the unit pulleys. Double-sided V-belts have good driving properties. To transmit high powers, poly-V rubber drives are used, which have teeth at the bottom and are flat at the top.
When to replace
The VAZ 2109 alternator belt is replaced every 10-15 thousand kilometers or after six months of operation of the vehicle. Such recommendations are given in all technical applications for vehicle operation. The alternator belt on a VAZ 2109 is replaced when rips, peelings of rubber and the top fabric covering are detected on it, which are formed when lubricating oil gets on it. Therefore, it is so important to replace the belt on time and constantly inspect it. The generator charging pulley rotates through the belt. The principle of operation of the generator is the conversion of mechanical energy into electrical energy; simply put, the battery is recharged. Because of this, the belt plays the most important role in the operation of the machine. When it is stretched and incorrectly adjusted, the battery is not fully charged.
Note. A broken belt can cause irreparable damage to the engine. Under good circumstances, it will simply break and fall. But it may wrap around the crankshaft along the pulley. And this, in turn, can cause the engine to jam, especially at high speeds.
VAZ car drive generator belt
Drive belt for power steering, alternator, timing belt and air conditioning...
Hello dear blog readers of RtiIvaz.ru. Let's talk today about the generator drive belt, an auto repair kit that should always be kept in stock. A drive belt is effectively a cheap means of rotating a transmission, which is created by the movement of an auxiliary shaft to the engine and engine components, such as a generator.
rubber One drive belt drives several units at once: generator, pump, timing belt, power steering pump, air conditioning compressor, radiator fan. During operation of the vehicle, it is necessary to regularly check the condition of the tires, as well as the tension. To avoid engine damage, you need to replace the rubber parts in accordance with the repair kits and the machine maintenance instructions. Video:
rubber car drive belts, simply put, come in several types - wide, narrow, toothed, each smooth car has its own size and shape. To reduce wear on the side parts and provide integrity, wrapped materials are used; cotton is used with nylon as the outer covering. Toothed belts provide the force of the transverse teeth and the drive mechanism, predetermined by maintaining the location of the shafts. During operation, it is recommended to lubricate them with oil; they actually do not vibrate or stretch, and last longer than smooth ones.
With the improvement of technology, various types of repair kits began to be produced. injection For cars, multi-strand wide ones are produced, which consist of several drive belts welded together. Due to this design, the load is distributed evenly between the streams; as a result, rubber repair kit products have an increased vehicle service life. It can simultaneously rotate the power steering, generator, and air conditioning compressor pulleys.
The V-belt is designed to accurately match the rotation speeds of the pulley units. Double-sided V-belts have good driving properties. To transmit high powers, poly-V-ribbed rubber drives are used, which have teeth at the bottom and flat teeth at the top.
Before you buy Lada car belts or other repair kits for rubber products, you need to look at parameters such as profile, width, quantity, tooth pitch, good quality, length and width dimensions must correspond to the brand of the one being used. Photo.
Belt selection and replacement
VAZ 2109 alternator belt tension
Before replacing the belt, you must carefully inspect all products offered for sale. There are low-quality rubber products on sale. Therefore, first of all, you need to trust trusted retail outlets.
Note. When you buy a low-quality belt, problems arise with charging the battery. Because no matter how much you tighten it, it still stretches. Also, such a product begins to produce an unpleasant whistle when starting the engine or while the car is moving.
Therefore, when buying a belt, it is always necessary to choose a quality product. Several manufacturers are represented on the Russian market. Domestic:
- factories of rubber products in Balakovo, Volzhsky.
Foreign:
- concern from Germany Contitech. You can name others, but you shouldn’t.
Tools
VAZ 2109 alternator belt size
To carry out the work, you need to prepare tools and accessories:
- open-end wrench No. 17, No. 19;
- also two heads No. 13, No. 17, No. 19;
- metal brush;
- rags;
- 200 grams of gasoline;
- metal ruler;
- corner piece 30 cm;
- in cloudy weather - carry with a protective net;
- latex gloves,
- cotton gloves
Removing and installing the belt
Need to:
- Place the car in a garage with an inspection hole.
- Open the engine compartment hood and place a support.
- Disconnect the negative terminal from the battery.
- Go down into the viewing hole.
- Clean the installed protection bolts with a wire brush.
- Unscrew the engine crankcase protection bolts using a wrench or socket No. 13.
- Carefully remove it and put it aside.
- Clean the threads on the through bolt of the generator mounting.
- Use a wrench or socket No. 19 to loosen the fastening nut.
- In the engine compartment, loosen the generator adjusting nut on the bracket.
- Move the generator towards the engine.
Replacing the alternator belt
- Remove the belt from the generator pulley and crankshaft.
- Wear rubber gloves.
- Moisten a rag with gasoline.
- Wipe the generator pulley, as well as the crankshaft pulley, from accumulated dust and the results of the rubber belt.
- After 20 minutes, put the belt on the two pulleys.
- After installing the belt, remove the generator (see Repairing the VAZ 2109 generator easily and simply) from the engine (you can use the prepared corner to ease the effort).
- Screw in the loosened fastening nuts (do not tighten them to the limit, but only tighten them).
How to set the VAZ 2109 timing belt correctly?
To work, you will need keys 17 and 19, a flashlight and a flat-head screwdriver. Remove the old belt and roller completely (just be careful not to lose the washers placed under and on it). Install a new tension roller VAZ 2109, and then begin adjustment.
Using a wrench, turn the camshaft pulley until the mark on it aligns with the bar attached to the engine block. After this, try not to touch the camshaft so as not to knock it down (although this is quite difficult to do, but if desired, everything is possible).
1. Place a mark on the camshaft:
2. Checking the alignment of the marks on the crankshaft pulley
3. Check the marks on the flywheel for more accurate installation
Place a bolt on the crankshaft so that you can align the pulley to the marks. Rotate the crankshaft until the mark on the pulley is clearly vertical - this is the very first guideline. Afterwards, to ensure correctness, remove the rubber plug in the clutch housing.
A viewing window will open, through which you can see the flywheel. So, the latter should have a mark - a line that, under normal settings, coincides with the slot on the bar attached to the engine block. This is your second reference point, which directly speaks to the accuracy of the setting. Now all that remains is to put the belt on the crankshaft pulley first, then the camshaft.
To adjust the belt tension, you need to install a special key in the timing belt roller of the VAZ 2109 (if you don’t have one, you can adjust the tension using a screwdriver and a pair of screws or nails). Normal tension is when in the longest section you can turn it a maximum of 90 degrees. Yes, it should turn, but it should turn.
If you can’t turn it at all, then the tension is excessive and needs to be loosened. This is why the VAZ 2109 tension roller exists. Loosen the nut and perform the procedure again. After this, use a wrench to turn the crankshaft several turns and double-check that all marks match. If everything is fine, assemble the unit and start the engine.
Instructions for replacing the belt on a car with an injection engine
The injector was installed on only one type of “nine” engine - with a cylinder displacement of 1.5 liters. The use of a fuel injection system did not cause any adjustments to the camshaft drive pattern. The procedure for replacing the timing belt on a VAZ 2109 with an injection engine is practically no different from the list of work on a carburetor car.
The difference is the removal of the old belt, which will require:
- Remove the crankshaft position sensor located next to the pulley from the engine. To dismantle, you need to unfasten the wiring plug and then unscrew the sensor mounting bolt. After this, the sensor is removed from the guide hole.
- To loosen the tension of the auxiliary drive belt, you need to unscrew the M13 nut installed on the generator.
The intricacies of replacing the timing belt on an injection machine are shown in the video from the Alex ZW channel.
There are also several differences when reassembling:
- The crankshaft pulley needs to be installed accordingly. To do this, you need to set the top dead center in the first cylinder - according to the mark on the flywheel and on the crankcase. In this case, the mark of the camshaft gear will coincide with the notch on the plate. The installed pulley should be located opposite the sensor with the beginning of the 20th tooth, counted from the two missing ones.
- The gap between the sensor and the pulley should be 0.4-1.0 mm.
- After completing the assembly, start and check the operation of the engine.
Check points on the pulley
Checking the timing belt tension
With the correct belt tension, the long leg should rotate 90º using the thumb and index finger. The test should not require much physical effort to complete. When retightening, additional loads occur on the bearings of the pump and tension roller, which damage them. Excessive tension is also harmful to the belt itself, which can break while the engine is running.
Preload check location
Belt installation
If the marks on the camshaft and crankshaft coincide, you need to install a new timing belt.
If there are markings or inscriptions on the belt, they must be oriented clockwise, and the arrows must also be oriented if they are on the belt. Before this, the old belt is removed; if it is intact, by examining it, you can make sure that it is cracked and its operation is dangerous. First, the belt is installed on the crankshaft gear, and then, with light force, on the camshaft sprocket. When installed, it should go around the drive sprocket and tension roller, making a zigzag.
Checking the timing belt tension is done by adjusting the tension roller, which is best replaced when installing a new belt. This is done with a special key; if you don’t have one, bolts or pins 40-50 mm long that fit the diameter are inserted into the holes. A screwdriver is inserted between them and, turning the roller, the belt is tightened. It should be quite tight, but with the average effort of the hand to turn 90°, if it is overtightened, it will quickly wear out. After this, the tension roller nut is securely tightened.
Replacing the timing belt on a VAZ 2109
As mentioned above, the timing belt has a limited service life. On some machines the declared service life of the original product may be longer, on others less. In the case of a VAZ, the belt runs, on average, about 50-60 thousand km. or 4-5 years.
It is important to remember that it may become unusable earlier for a number of reasons (ingress of oil or technical fluids, stretching, delamination, cracking, etc.). One way or another, you need to change the VAZ 2109 timing belt both in terms of mileage or time, and in case of defects
At the same time, it is a mistake to believe that the part has a long service life. Simply put, this is a consumable that needs to be changed regularly.
Let's look at how the replacement is performed and what to pay attention to
