Introduction to an Automobile
Introduction on BS engine & its categories of BS-I,BS-II,BS-III,Bs-IV & BS VI, What is BS-IV & BS-VI Technology ,What are the feature of a BS-IV & BS- VI engine, Engine number codification
Hand and power tools
Learn how to use the Marking scheme, marking material-chalk, Prussian blue .Cleaning tools- Scraper, wire brush, Emery paper, steel rule, measuring tape, try square. Callipers-inside and outside. Dividers, surface gauges, scriber, Punches-prick punch, centre, punch, pin punch, hollow punch, number and letter punch. Chisel-flat, cross-cut. Hammer- ball pain, lump, mallet. Screw drivers-blade, Screwdriver, Phillips screw driver, Ratchet screwdriver. Allen key, bench vice & C -clamps, Spanners- ring spanner, open end spanner & the combination spanner, universal adjustable open end spanner. Sockets & accessories, - Pliers - Combination pliers, multi grip, long nose, flat nose, Nippers or pincer pliers, Side cutters, Circlip pliers, external circlips pliers. - Air impact wrench, air ratchet, wrenches- Torque wrenches, pipe wrenches, Pipe flaring & cutting tool, pullers-Gear and bearing.
Systems of measurement
Description, Least Count calculation, care & use of -Micrometres, Micrometre adjustments,
Description, Least Count calculation, care & use of Vernier Calliper. Use of Telescope gauges, Dial bore gauges, Dial indicators, straightedge, Use of feeler gauge, thread pitch gauge, vacuum gauge, and tire pressure gauge
Introduction to engine
Description of internal & external combustion engines, Classification of IC engines, Principle & working of 2&4-stroke diesel engine (Compression ignition Engine (C.I)), Principle of Spark Ignition Engine(SI), differentiate between 2-stroke and 4 stroke, C.I engine and S.I Engine, Main Parts of IC Engine, Direct injection and indirect injection, Technical terms used in engine,
Engine specification., major exterior components or parts of the automobile(instrument on a dash board of a vehicle- Speedometer, Tachometer, Odometer and Fuel gauge, and Indicators such as gearshift position, Seat belt warning light, Parking-brake-engagement warning light and an)
Description and Constructional feature of Cylinder head, Importance of Cylinder head design Valves & Valve Actuating Mechanism (Description and Function of Engine Valves, different types, materials, - Type of valve operating mechanism, Importance of Valve seats, Valve seats inserts in cylinder heads, , -
Type of Diesel combustion chambers, - Effect on size of Intake & exhaust passages, Head gaskets. –
Importance of Turbulence Description & functions of different types of pistons, piston rings and piston pins and materials. Used recommended clearances for the rings and its necessity precautions while fitting rings, common troubles and remedy. Compression ratio.
Description function of connecting rod importance of big- end split obliquely Materials used for connecting rods big end & main bearings. Shells piston pins and locking methods of piston pins. Construction and working principle of crank shaft, Timing gear cooling system
Components-(Radiator, Coolant hoses, - Water pump, Cooling system thermostat, Cooling fans- Temperature indicators, Radiator pressure cap, Recovery system, Thermo switch. Need for lubrication system,) Different components of lubrication system & it’s working principle
Intake & exhaust systems
Description and function of Exhaust manifold, Exhaust pipe, Extractors, Mufflers Reactive, absorptive, Combination of Catalytic converters, Flexible connections, - (Description of Diesel, Exhaust systems.
Description & function of air compressor, exhauster, Super charger, Intercoolers, turbo charger, variable turbo charger mechanism. Intake system components-
Description and function of Air cleaners, Different type air cleaner, Description of Intake manifolds and material,
Diesel Fuel Systems
- Description and function of Diesel fuel injection, fuel characteristics
- Electronic Diesel control systems, Common Rail Diesel Injection (CRDI) system,. Sensors, actuators and ECU (Electronic Control Unit) Reduction (SCR), EGR VS SCR
BS VI Model
Describe briefly working model of BS VI engine & diagnostic scan tool