Device and description of cars VAZ-2121 and VAZ-21211

Purpose and brief characteristics of the car
«Niva» VAZ-2121 is a cross-country passenger car used to transport passengers and goods. It is intended mainly for rural areas. It can be used on both dirt and paved roads. At the...

Engine crank mechanism
It is a set of mechanisms and systems that serve to convert thermal energy into mechanical energy. car engine «Niva» (pic. 2) piston, internal combustion, carburetor, four-stroke,...

Gas distribution mechanism of the engine
The gas distribution mechanism is used to admit a combustible mixture into the engine cylinders and exhaust gases from the cylinders. The gas distribution mechanism is overhead...

Engine lubrication system
It serves to supply oil to rubbing surfaces. Lubrication reduces friction and wear of engine parts, cools and cleans surfaces from wear products. The lubrication system of the car...

Engine cooling system
The cooling system serves to maintain the optimum temperature regime of the engine by controlled heat removal from the most heated parts. Optimum temperature conditions provide...

Engine power system
The power supply system is used to prepare a combustible mixture, supply it to the engine cylinders and remove exhaust gases from them. The fuel used is AI-93 gasoline. The power...

Vehicle electrical system
In a car, electrical energy is used to start the engine, ignite the working mixture, lighting, signaling, powering control devices, additional equipment, etc. The electrical...

Car transmission diagram
The transmission is designed to transmit torque from the engine to the driving wheels of the car. The car uses a mechanical transmission, which includes: clutch, gearbox, transfer...

The device and operation of the clutch
The clutch is intended for temporary separation of the engine and transmission and their smooth connection. When engaged, the clutch transfers torque from the engine to the...

Transmission
The gearbox is designed to change the torque on the driving wheels of the car, long-term separation of the engine and transmission and getting reverse. The car is equipped with a...

Cardan gear
Cardan gear is designed to transfer rotation between shafts, the axes of which do not lie on one straight line and have relative movement. The driveline transmits torque from the...

Transfer case
The transfer box is designed to distribute torque between the drive axles of the vehicle. The car is equipped with a two-stage transfer case, with a forced locking center...

Rear axle device
Vehicle bridges are designed to transfer vertical loads from the body to the wheels and transfer pushing, braking and lateral forces from the wheels to the body. The rear axle in...

Front axle device
The front axle of the car is combined. It performs the functions of driving and controlled axles at the same time and has a permanent drive from the transfer case. Front axle of...

Vehicle suspension device
The suspension provides an elastic connection of the car body with bridges or wheels. The suspension softens shocks and shocks when driving but the bumps in the road. Car...

Car wheels and tires
The wheels are the direct link between the car and the road. Wheel (pic. 40) consists of a pneumatic tire 7, a rim 2, a disc 3 and a hub 4. The pneumatic tire smooths out road...

Steering device
Steering is designed to change and maintain the direction of the vehicle. The car uses left-hand steering, front steerable wheels and safety steering. The steering wheel in the...

The device of brake systems
Brake systems are designed to reduce the speed of movement, stop and hold the car in place when parking. Reducing the speed of movement and stopping the car is provided by a...

Car body device
The car body is designed to accommodate the driver, passengers, cargo and protect them from external influences. car body (pic. 52) closed, bearing. The body is made of all-metal...

Vehicle Specifications
Pic. 1-1. The main overall dimensions of the car VAZ-2121 Vehicle Specifications

Basic data for adjustments and monitoring
Clearances in the valve drive mechanism between the cams and levers on a cold engine, mm - 0.15 Minimum speed of rotation of the crankshaft at idle min -1 — 850-900 (750-800*) Oil...