Engine 2111: features, specifications and reviews

2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:41

The 2111 engine continued the series of power plants produced by VAZ, replacing the 21083 and 2110 models on the assembly line. This engine is considered the first fully modified domestic injection engine.

Application and general characteristics of the engine

Unit 2111 could be installed on the entire line of Lada Samara models, from 2108 to 2115, as well as on the "top ten" and its modifications (2110-2112).

The working cycle of the VAZ 2111 engine (injector) is classic, that is, it is carried out in four cycles. Fuel is supplied to the combustion chamber through injectors. The cylinders are arranged in one row. The camshaft is mounted on top. The cooling of the internal combustion engine is carried out forcibly using a closed liquid system, and the lubrication of parts is provided by a combined lubrication system.

Technical characteristics of the injection engine VAZ-2111

• Number of cylinders (pcs.) – 4.
• Quantity of valves (total) - 8 pcs. (two for each cylinder).
• Displacement - 1490 cc
• Compression value - 9, 8.
• Power at 5400 rpm. - 77 l. s., or 56.4 kW.
• The minimum possible crankshaft frequency at which the motor continues to run steadily is 750-800 rpm.
• The diameter of one cylinder is 82 mm.
• The length of the vertical stroke of the piston is 71 mm.
• Torque (maximum) - 115.7 Nm (at 3k rpm).
• The ignition order of the mixture in the cylinders is standard: 1-3-4-2.
• Recommended type of fuel - AI-95.
• Recommended type of spark plugs - A17 DVRM or their equivalents, for example, BPR6ES (NGK).
• Motor weight excluding those. liquids - 127.3 kg.

Location under the hood of the car

The 2111 engine, together with the gearbox and clutch mechanism, forms a single power unit, which is mounted on three rubber-metal supports in the engine compartment of the machine.

To the right (when viewed in the direction of vehicle movement) from the cylinder block is a set of drives: a crankshaft, a camshaft, and a pump for pumping antifreeze through the cooling system. The drives are made in the form of toothed pulleys connected by a single belt. On the same side, a generator is installed, which is also connected to the crankshaft pulley by means of a V-ribbed belt.

A thermostat with a temperature sensor is fixed to the left of the cylinder block.

In front of the bottom is a starter. Between it and the generator is the ignition module, from which high-voltage wires go to the candles. In the same place (to the right of the module) a dipstick is installed, immersed in the engine crankcase, for manual control of the oil level.

A receiver with a fuel rail and nozzles is installed at the rear of the BC, just below is an oil filter, as well as intake and exhaust manifolds.

2111 engine block features (injector, 8 valves)

First of all, the 2111 cylinder block can be distinguished from the 21083 block by the additional holes used to attach the alternator bracket, as well as the ignition module and knock sensor.

The bolt holes for mounting the block head have a thread size of M12 x 1.25. The height of the block, if we take the distance from the crankshaft axis to the platform on which the cylinder head is installed as this value, is - 194.8 cm. The initial diameter the cylinder is 82 mm, but the repair boring can be carried out by 0.4 mm or by 0.8 mm. The wear limit of the "mirror" (surface) of the cylinder should not be more than 0.15 mm.

The engine 2111 has a crankshaft mod. 2112-1005015. It has identical seating to the 2108 shaft, but has larger counterweights and additional factory processing to significantly reduce rotational vibration and improve overall reliability.

Pistons and connecting rods

In terms of size, the pistons of the 2111 engine (injector) are similar to those installed on 21083 and also have a shockproof recess on the bottom, which ensures the safety of the valves if the timing belt breaks.

The difference lies in the special groovesunder the retaining rings, which prevent displacement of the piston pin. The finger itself differs from that used on model 2108. If the outer diameter remained the same, that is, 22 mm, then the inner diameter was reduced to 13.5 mm (it was 15). In addition, it has been slightly shortened by 0.5 mm (60.5 mm).

The size of the piston rings was not modified - 82 mm, but the connecting rod was redone: its lower head became more massive, the profile changed, a more durable alloy resistant to mechanical stress was used for its manufacture.

Crank length is 121 cm.

Cylinder head

The cylinder head of the injection engine 2111 is the same as that installed on the model 21083, the only difference is that the head mounting bolts are longer.

The camshaft is similar to 2110. Its mounting dimensions are the same as the shaft from 2108, but the profile of the cams is somewhat different, which increased the valve lift: intake - 9.6 mm, exhaust - 9.3 mm (for 2108 and both were raised by 9 mm). In addition, the angles of inclination of the cams relative to the groove in which the cylinder head belt pulley key is installed were changed.

Thanks to the changes made, the manufacturer managed to improve the performance of the 2111 engine.

As for the timing drive, it is structurally the same as on 21083. The belt (19 mm wide) has 111 teeth with an involute profile.

Other engine features

Due to the fact that after the engine upgrade, the torque increased in it, there wasthe design of the flywheel has also been changed: the clutch surface has increased from 196 to 208 mm, the width of the crown has also increased to 27.5 mm (the previous one was 20.9), in addition, the size and shape of its teeth have changed.

The starter corresponds to the 2110, which has a 9-tooth pinion instead of 11.

This power unit has a 2112 oil pump, which differs from the 2108 only in that the housing cover is made of aluminum, on which the crankshaft sensor is attached.

The water pump in the cooling system is the same as in 2108.

The alternator is marked 9402 3701 (80A).

The engine is controlled by an electronic unit (ECU). Controllers (Bosch, GM or January) are suitable for this role.

Reviews of car owners about the engine model 2111

As most car owners, whose cars are equipped with the 2111 engine, notice, in general, the unit is quite reliable: despite the fact that its working life, declared by the manufacturer, is 250 thousand km, in fact, subject to regular maintenance, use quality fuel and technical fluids, its life can be extended up to 350 thousand km.

However, despite the transformations, this engine inherited the shortcomings of previous models (21083 and 2110):

• requires periodic valve adjustment;
• quick failure of individual elements of the cooling system, in particular, the water pump;
• problem with oil leakage from under the cover gasketvalves;
• submersible fuel pump failure.
• breakage of studs on the exhaust manifold at the place where the exhaust pipe is attached.

The last drawback can be eliminated by replacing the steel (factory) studs with brass ones.

And in conclusion: the 2111 engine, the price of which in Russia is about 60 thousand rubles, is a fairly popular model, and often the owners of VAZs, which still have carburetor engines, independently changed them to an injection engine.