Page 15 - MMV 1st Year - TT - Telugu

difference in components of light, Parking-brake-engagement warning
Petrol and Diesel Engines. (07 light and an Engine-malfunction light.
Hrs)
Different type of starting and stopping method
36 Practice on dismantling engine of Diesel Engine
of LMV/HMV as per procedure. Procedure for dismantling of diesel engine
(15 Hrs)
from a vehicle.
Petrol Engine Basics:

4-stroke spark-ignition engines- Basic 4-
stroke principles. Spark-ignition engine
components- Basic engine components,
Engine cams & camshaft, Engine power
transfer, Scavenging, Counter weights, Piston
components.
Intake & exhaust systems -Electronic fuel
injection systems, Exhaust systems.
Intake system components, Air cleaners,
Carburettor air cleaners, EFI air cleaners,
Intake manifolds, Intake air heating.
Gasoline Fuel Systems: Description of
Gasoline fuel, Gasoline fuel characteristics,
Controlling fuel burn, Stoichiometric ratio, Air
density, Fuel supply system, Pressure &
vacuum.(10 hrs)

Professional Overhaul Engine and 37 Overhauling of cylinder head Engine Components: Description and
Skill 175 Hrs; check functionality. assembly, use of service Constructional feature of Cylinder head,
manual for clearance and other Importance of Cylinder head design, Type
Professional
Knowledge parameters, Practice on of Petrol and Diesel combustion chambers,
32 Hrs removing rocker arm assembly Effect on size of Intake & exhaust passages,
manifolds. (10 Hrs) Head gaskets. Importance of Turbulence
38 Perform Checking valve seats Valves & Valve Trains- Description and
& valve guide - Replacing the Function of Engine Valves, different types,
valve if necessary check valve materials, Type of valve operating
overlap. Testing leaks of valve mechanism, Importance of Valve seats, and
seats for leakage - Dismantle Valve seats inserts in cylinder heads, Valve
rocker shaft assembly -clean stem oil seals, size of Intake valves, Valve
& check rocker shaft-and trains, Valve- timing diagram, concept of
levers, for wear and cracks Variable valve timing. Description of
and reassemble. (10 Hrs) Camshafts &drives ,Description of Overhead
camshaft, importance of Cam lobes, Timing
39 Check valve springs, tappets, belts & chains, Timing belts & tensioners.
push rods, tappet screws and (08 hrs)
valve stem cap. (10 Hrs)
40 Reassemble valve parts in
sequence, refit cylinder head
and manifold & rocker arm
assembly, adjustable valve
clearances, starting engine
after adjustments. (10 Hrs)

41 Practice Overhauling piston and Description & functions of different types of
connecting rod Assembly. Use pistons, piston rings and piston pins and
of service manual for clearance materials. Used recommended clearances
and other parameters(5 Hrs) for the rings and its necessity precautions
while fitting rings, common troubles and
42 Practice on removing oil sump remedy. Compression ratio.
and oil pump - clean the sump.
Practice on removing the big

(xiii)