Characteristics of motor 21213
The requirements for an SUV engine at the time of design were:
- increase power and torque, at least at medium speeds;
- ensure acceptable fuel consumption within 12 l/100 km;
- provide a basis for injection modification in the future.
ICE 21213
The engine uses a crankshaft with a “long” crank radius and 82 mm cylinders. If the gas distribution mechanism drive breaks, it bends the valves, but at 3000 rpm the torque is 126 Nm, and the power is increased to 81 hp. With. Factory tuning used a modernized attachment - a Solex carburetor, and increased volumes of combustion chambers.
Solex carburetor
The engine layout remaining from classic rear-wheel drive models - a longitudinal arrangement under the hood relative to the movement - was suitable for an all-wheel drive layout without modifications.
The resulting technical characteristics of version 21213 are as follows:
| Manufacturer | AvtoVAZ |
| Engine brand | 21213 |
| Years of production | 1994 – … |
| Volume | 1690 cm3 (1.7 l) |
| Power | 61 kW (82 hp) |
| Torque moment | 126 Nm (at 3000 rpm) |
| Weight | 117 kg |
| Compression ratio | 9,3 |
| Nutrition | Solex carburetor |
| Motor type | in-line |
| Ignition | distributor |
| Number of cylinders | 4 |
| Location of the first cylinder | TVE |
| Number of valves on each cylinder | 2 |
| Cylinder head material | aluminum alloy |
| Intake manifold | duralumin |
| An exhaust manifold | cast iron |
| Camshaft | original cam profile |
| Cylinder block material | cast iron |
| Cylinder diameter | 82 mm |
| Pistons | original |
| Crankshaft | from 2103 |
| Piston stroke | 80 mm |
| Fuel | AI-92 |
| Environmental standards | Euro-0 |
| Fuel consumption | highway – 8.3 l/100 km combined cycle 10.5 l/100 km city – 11.5 l/100 km |
| Oil consumption | maximum 0.7 l/1000 km |
| What kind of oil to pour into the engine by viscosity | 5W30, 5W40, 10W40, 15W40 |
| Which engine oil is best by manufacturer | Liqui Moly, LukOil, Rosneft |
| Oil for 21213 according to composition | synthetic in winter, semi-synthetic in summer |
| Engine oil volume | 3.75 l |
| Operating temperature | 95° |
| ICE resource | declared 80,000 km actual 160,000 km |
| Adjustment of valves | nuts |
| Cooling system | forced, antifreeze |
| Coolant volume | 10.7 l |
| water pump | with plastic impeller |
| Candles for 21213 | BCPR6ES from NGK or domestic AU17DVRM |
| Spark plug gap | 1.1 mm |
| Valve train chain | double-row, from 2103 with a new tensioner shoe design |
| Cylinder operating order | 1-3-4-2 |
| Air filter | Nitto, Knecht, Fram, WIX, Hengst |
| Oil filter | with check valve |
| Flywheel | with clutch landing diameter 200 mm or 215 mm |
| Flywheel mounting bolts | M12x1.25 mm, length 26 mm |
| Valve stem seals | manufacturer Goetze, inlet light, exhaust dark |
| Compression | from 10 bar, difference in adjacent cylinders maximum 1 bar |
| XX speed | 750 – 800 min-1 |
| Tightening force of threaded connections | spark plug – 31 – 39 Nm flywheel – 62 – 87 Nm clutch bolt – 19 – 30 Nm bearing cap – 68 – 84 Nm (main) and 43 – 53 (rod) cylinder head – three stages 20 Nm, 69 – 85 Nm + 90° + 90° |
Taking into account the year of manufacture (1994) and the low compression ratio (9.3 units), users filled in 92 gasoline, and the engine manufacturer recommended AI 91 - 93. Compliance with the environmental protocol has not yet been discussed, so the engine is considered Euro-0.
Technical characteristics of engine 21213
VAZ 21213 is a 1.7 liter petrol 4-cylinder 8-valve carburetor engine. The engine was created on the basis of 2121 and taking into account the developments of the VAZ 2107 unit. Engineers partially changed the original design to achieve better ergonomic characteristics of the Niva’s internal combustion engine:
In addition to increasing the cylinder diameter to 82 mm, VAZ developed new pistons and a crankshaft for the 21213 engine. We replaced the outdated Ozone carburetor with the Solers, the most popular and successful model in the early 90s. Improved ignition and cooling systems.
To lubricate the 21213 engine, oil is selected depending on the climate:
The manufacturer indicates the preferred brands of oils: Lukoil, ESSO, Rexol, Yar-Marka, Norsi, Shell, etc.
Technical characteristics of the VAZ 21213 engine
Meaning
Despite the factory-specified service life of engine 21213 being 80 thousand km, in practice the engine lasts 150 thousand km before overhaul, provided that high-quality fuels and lubricants are used and moderate operation.
Based on the 21213 engine, the 21214 unit with an injector was developed. The technical characteristics of the motors are identical. The designs differ in the power supply system, timing drive and the presence of hydraulic compensators. According to environmental requirements, the injection version meets the Euro-3 standard.
Design Features
The 21213 engine was created from the working version 2121, taking into account new developments for the VAZ 2107 engine, which were never completed. The main differences from the Niva internal combustion engine are:
- new design pistons;
- changing the parameters of the cylinder head and connecting rods;
- crankshaft modernization;
- camshaft modification;
- use of Solex carburetor modification 21073;
- improved lubrication system;
- original design of the chain tensioner shoe.
Pistons 21213
Crankshaft
Chain tensioner shoe
A detailed description of the components is contained in the manufacturer's manual. To reduce costs, designers mainly used parts of engines already in production that were already in mass production at the time of 1994:
- standard cylinder block, from 2103, height 214.58 mm, cylinder center distance 95 mm;
- crankshaft - taken from 2103 with a crank radius of 40 mm, equipped with additional counterweights, oil channels are drilled in the connecting rod journals, and their diameters are increased by 0.02 mm;
- the cylinder head was used from 21011, but the combustion chambers were enlarged (30 cm3 each), the height was ground down to 111 mm;
- timing valve mechanism – used from 2101 without changes;
- Timing chain – bush-roller double-row from 2103.
Cylinder head 21213
Factory boost provided a power of 81 hp. s and a torque of 126 Nm, but the manufacturer left a potential of about 45 - 60 hp. With. At the same time, he recommends improving the intake and exhaust tracts with your own hands without boring the cylinders and turbocharging the engine.
The main feature of the lubrication system is the presence of plugs to accumulate and then remove dirt from the oil.
Advantages and disadvantages
At the time of its creation, ICE 21213 had the following advantages over earlier versions:
- trouble-free carburetor - does not require frequent adjustments, when adjusted by a specialist, it ensures gasoline consumption at the level of injection injection;
- improved performance - in addition to power/torque, speed and throttle response have increased;
- several repair sizes of ShPG - major repairs can be performed several times without purchasing a new unit.
ShPG 21213
The disadvantage is the excessive noise during operation of the internal combustion engine, high consumption of fuel and lubricants and antifreeze. Currently, instead of standard elastic cylinder head gaskets, metal packages with a long service life can be used. However, machine grinding of the surface of the head and block, respectively, will be required.
Users note among the disadvantages of the motor the low quality of the factory assembly. For example, the connecting rod pin bushings are pressed in incorrectly - with a cut in an arbitrary direction. And these parts experience maximum loads at dead spots, so in the literature it is recommended to press them either at 45 degrees or in a horizontal direction, which will increase the service life of this consumable.
What cars was it used in?
The 21213 engine was installed on several AvtoVAZ cars:
- Niva 21213 – domestic three-door SUV;
- Lada 21313 - an extended five-door version of the Niva;
- Nadezhda 2120 is a Russian minivan.
Nadezhda 2120
Compared to the basic version 2121, the engine characteristics are much better; the engine is still produced.
Maintenance
For normal operation, engine 21213 should be serviced within the specified periods:
- 10,000 km - change the oil along with the filter;
- 20,000 km – checking the functionality of the thermostat, updating the cabin filter;
- 30,000 km – replacement of the fuel and air filters;
- 60,000 km – spark plugs and batteries are renewed and the crankcase ventilation is cleaned;
- 100,000 km – reinstallation of the oxygen sensor;
- 200,000 km - the timing chain may need to be replaced.
Despite the fact that the internal combustion engine device is copied from longitudinal engines with a much higher service life, it is used on an SUV with non-disconnectable all-wheel drive, so the components wear out more intensively.
Differences and common features with other engines in the VAZ line
Despite the fact that the VAZ 21213 engine was created on the basis of the VAZ-2121 engine, it has a number of differences from the previous model:
- Completely new piston group with pistons of the original design;
- The connecting rods and cylinder head have a slightly different design and dimensions;
- A non-contact ignition system with a switch 3620.74 and a control pulse distribution sensor 3810.3706 is used;
- New camshaft. Its cams are modified to increase the intake stroke of the valves;
- Carburetor "Solex" 21073;
- New tensioner shoe with an elongated shape, which prevents the chain from falling off.
- A combined lubrication system is installed, operating both under pressure and splashing.
Malfunctions: causes, elimination
Based on the results of many years of operation, motor 21213 has the following breakdowns:
| The engine does not start | 1) the carburetor damper does not open when ignited 2) fuel pump failure 3) there is no gasoline inside the carburetor | 1) sealing the starting device 2) replacement or repair 3)washing filters and fuel lines |
| Engine stalls in idle mode | 1) failure of the control system 2) damaged drainage tube 3) failure of XX adjustments | 1)replacement of hoses, gaskets and fittings 2) tube replacement 3) adjusting the idle speed with screws |
| Increased vibrations | Spark plugs are not working correctly | Replacing spark plugs |
| Reduced throttle response and power | 1) the dampers do not open enough 2) clogged air filter 3) ignition failure 4) fuel pump failure 5) carburetor failure | 1) adjusting the remote control drive 2) replacement of consumables 3)repairs and adjustments 4)repair 5) settings or cleaning |
The official operating manual of the AvtoVAZ manufacturer contains step-by-step actions that allow you to carry out major repairs or scheduled maintenance on your own.
Motor design 21213
Weaknesses of the VAZ 21213 power unit
The water pump (pump) is characterized by frequent failures on new cars after 2,000 km.
Due to poor quality, oil seals require more frequent replacement than required according to the operating manual.
The generator has a high probability of failure. As a rule, it burns out even on new cars that have not reached 4,000-10,000 km.
The starter has a low service life without repair.
The valve cover gasket loses its properties over time and allows oil to leak out.
The connections of the cooling system pipes in the places where the clamps are installed are not reliable and lose their tightness very early, which is fraught with loss of antifreeze.
The thermostat does not provide thermal conditions for the coolant in the engine cooling system. The manifestation of this problem is no exception. The cause of the defect is a failure of the valve mechanism inside the thermostat. To check that the thermostat is working properly, after starting the engine, simply place your palm on the lower (outlet) hose, through which hot antifreeze circulates into the radiator for cooling. If the thermostat is working properly, after some time the hose should become hot; if the hose remains cold, the thermostat must be replaced.
The expansion tank cracks and antifreeze leaks out. The appearance of cracks occurs due to the failure of the steam-air valve in the tank plug due to increased pressure.
