How to replace the VAZ 2114 timing belt: subtleties and nuances, timing marks

The timing drive of the popular five-door hatchback in the Russian Federation from the Volga Automobile Plant - VAZ-2114, is carried out using a flexible belt, both on 8 and 16 valve units, only in the latter the timing belt is slightly longer and the mechanism uses two roller (tension and bypass).

Replacing the timing belt drive for the VAZ 2114 is provided by the manufacturer every 60-70 thousand kilometers. However, taking into account numerous reviews from experienced motorists, as well as the quality of spare parts, it is recommended to replace the timing belt after half the mileage.

A visual inspection of the belt drive for mechanical damage should be carried out much more often than scheduled maintenance, at least once a month. If the slightest sign is detected that the belt is already worn out, is being eaten, or has any damage, it must be replaced immediately.

If you don’t do this, then at the most unexpected moment you can get a lot of troubles and, at best, this will be a breakdown of the tension roller, failure of the water pump, or blocking of the generator shaft.

In the case of VAZ 2114 cars with 8-valve internal combustion engines with volumes of 1.5 and 1.6 liters, there is good news - a broken belt drive on these units does not threaten bending of the valves and damage to the cylinder head, which cannot be said about 16-valve units, where major repairs after a break The timing belt should be worn in 90% of cases.

Preparatory work

You can change the timing belt on model 2114 yourself. Before starting repair work, you need to do the following:

• so that during repair work the car does not roll back (when lifting the front end with a jack), it is necessary to place stops under the rear wheels;
• then you can begin to loosen the bolts on the right front wheel hub;
• Remove the wheel completely.

That's all, now the car is ready to replace the worn timing belt. This should be done on a VAZ-2114 (8 valves, injector) in the same way as on 16-valve power units. The only difference is that on recent installations the belt is longer, so it is installed one more notch.

Checking the set ignition

To check the ignition on an 8-valve engine, an injector, you should prepare:

1. Multimeter.
2. Set of keys and screwdrivers.
3. 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.

Removing the belt

To dismantle a worn-out timing belt, reliable fixation of the crankshaft is required to prevent it from accidentally turning. To do this, you need to unscrew the crankshaft pulley bolt.

• This can be done without removing the wheels, having previously set the handbrake to the working position.
• Next, already under the car, you can begin to tear off the bolt with a head on “19”.
• After removing the wheel, with the participation of an assistant who will squeeze the brake, you can begin to lock the crankshaft.
• After unscrewing the bolt on the crankshaft, you need to remove the generator drive pulley.
• Then, using the key set to “17”, you can begin to unscrew the nut from the roller and completely remove the timing belt itself.

In general, experienced car enthusiasts change the timing belt on brand 2114 literally in a matter of minutes, but beginners in this matter should not rush, and it is better to check everything at least twice.

How often to change the roller and belt

The recommended replacement rates for VAZ 2114 cars, determined by the manufacturer, define the replacement period as 60 thousand km, but this statement is only true for vehicles under five years old, otherwise this figure should be reduced by approximately 15 thousand km.

The replacement period is also affected by the performance of the liquid pump, with a maximum service life of 90 thousand km. You should not take the original pump under any circumstances, because it will quickly break on its own or “eat” the belt from the outside.

Also, do not forget about the need to replace the crankshaft seals, which also have similar wear measured at 40 thousand.

Therefore, taking into account the data described above, we can come to the conclusion that it is necessary to change the belt, adjustment roller and oil seal every 40 thousand km, and after one replacement, install a new pump along with them, if no unforeseen breakdowns have occurred.

Installing a new timing belt

To install a new timing belt, you must follow the steps below.

• First, we install the camshaft pulleys according to the marks, after which we securely fix them from accidental rotation.
• To align the crankshaft to the mark, you need to open the inspection window in the clutch housing. Only if all marks match is the correct installation of the new belt drive guaranteed.
• After aligning the timing components according to the marks, we install new rollers (tension and bypass).
• The belt itself is threaded through the pump and is first located on the crankshaft pulley.
• Installing the belt on the camshaft pulleys occurs last.
• The position of the tensioner, pre-lubricated on both sides with machine oil, is adjusted using a special key and counterclockwise*.
• Further installation is carried out in reverse disassembly sequence. If the marks are accidentally lost, they must be set again.
• At the end of the work, you should start the engine and listen for any extraneous noise. If there is any rustling or humming coming from the timing belt, this most likely means that the belt is too tight and needs to be loosened a little.

*For proper tension of the timing belt drive, it is necessary that the part of the belt between the shaft pulleys rotates 90° without applying any serious force. If this is done with little to no force, then greater belt tension is required. If the belt cannot be turned at all, then the tension should be loosened.

What is timing belt?

Timing mechanism diagram

The gas distribution mechanism is a mechanism in which the valve timing of the power unit is controlled. For normal engine performance, there are special marks by which the timing belt must be set.

Some are on the block, while others are on the pulleys. When the cylinder is in the first upper position, all these marks must coincide.

The timing marks are misaligned if the drive toothed belt is broken or if it is replaced incorrectly. So, in these cases, the engine will not work correctly and the marks will need to be re-set. Doing this is quite problematic and not everyone can do it.

Prices for timing belts, their articles, originals and analogues, replacement cost

Today, a timing belt for any VAZ-2114 engine can be purchased without any problems at any auto store. Price tags for these parts vary depending on the manufacturer and on average range from 500 to 1000 rubles. However, when replacing a belt drive, it is better to immediately change the rollers, the price tags for which start at 400 rubles apiece.

The approximate cost of replacing a timing belt complete with rollers is from 1000 rubles at service stations. However, this repair can be done with your own hands. Of course, first you need to buy a new timing belt and pulley, and it is better to do this in a kit, the price of which also varies in the range of 1000 rubles.

Considering possible malfunctions caused by a broken timing belt, as well as the complexity of subsequent repairs, you should purchase products from even well-known companies with extreme caution so as not to fall for a fake.

The original spare parts used for the 2114 are unified with many other VAZ cars, mainly with the “ninth” and partly with the “tenth” models. A branded timing belt for the VAZ-2114 complete with a roller will cost an average of 1,300 rubles.

• The cost of analogues is also not high. For example, a timing belt kit with a pulley from Gates (article - K015521XS) for a VAZ 2114 (1.5-1.6 l., 8 valves) costs 1,200 rubles.
• The timing belt kit from Contitech - CT527K1, will cost more, from 2000 rubles, however, like products from the brands BOSCH (art. 1987949095), DAYCO (art. 94738) and GOODYEAR (art. G1474).

Consequences of incorrectly setting timing marks

If the ignition is set incorrectly, the following negative aspects are possible:

• If the engine has 16 valves, then they become deformed or bent during operation, accumulating damage.
• The previous problem causes damage to the cylinder head.
• The guide bushings may also become unusable.
• Cracks may appear in other engine components.

• The motor overheats.
• The engine piston mechanism can burn out.
• Oil residue may appear on the spark plugs.

• The fuel mixture loses its ignition moment.

Note! If the engine has 8 valves, then the consequences are not so critical - traction disappears, the belt quickly wears out and breaks.

After repairs, the following factors most often indicate an incorrectly set ignition:

1. The car accelerates worse.
2. Frequent overheating of the motor.
3. The craving became much worse.

Tension adjustment

It is necessary to achieve such a tension at which, without applying much force, the part of the belt between the camshaft and crankshaft pulleys rotates 90 degrees. If this can be done without any effort at all, then you need to tighten the belt more. If you cannot turn the belt, then you need to loosen the tension. In the first case, the belt may slip and the valve timing may shift. In the second - destruction of the bearings, failure of the pump.

Before starting, be sure to check that all marks on the crankshaft and camshaft pulleys match. To do this, rotate the crankshaft 2-4 turns, then double-check that all marks match. If they do not match, then make an adjustment. At this point, the replacement of the VAZ-2114 timing belt is completed, you can begin assembling the unit.

Causes of toothed belt wear on VAZ 8 valve engines

1. Wear of the timing belt on the front side is the main cause of a worn pump, but sometimes it can also be the tension roller stud and, in very rare cases, the camshaft sprocket. To eliminate this problem, replace the worn part.
2. Wear on the rear side is much less common. The main reason is the bolt on the oil pump. Over time, the belt tension weakens a little and, vibrating, it begins to reach this bolt. It’s very easy to fix this problem; we replace the Torx sprocket bolt with a regular 10mm socket, its head is smaller and the timing belt is no longer missing. The photo shows wear from the belt.

How to set the ignition on a VAZ using marks

Almost all modifications of the VAZ-2114 and 2115 are equipped with engines with BSZ (non-contact electronic ignition). To make the setup, you need to:

• Unscrew the timing case fasteners and remove it.

Removing the timing case

• Adjust the gap from the crankshaft sensor (located near the generator pulley) to the gear disk. The permissible value is up to 0.7 mm.

Adjusting the gap from the crankshaft sensor to the gear disk

• If the distance is normal, check that the crankshaft pulley is not misaligned.
• To ensure that the marks on the flywheel align with those on the gearbox housing (can be seen on the hatch), the crankshaft must be rotated. It is convenient to do this by grasping the pulley mounting bolt.

Note! It is prohibited to turn the camshaft pulley itself.

Rotating the crankshaft pulley

• The mark on the cylinder block must align with that on the oil pump pulley. They should be adjusted.
• The last mark (on the camshaft pulley) should coincide with the other mark on the cylinder head.

Checking the marks on the camshaft and block

Having placed the marks on the VAZ model, you can see that the pistons of cylinders 1 and 4 are located at the dead center at the top, if everything is done correctly. In this case, the power unit operates correctly because the crankshaft sensor sends correct data to the ECU.