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AUTOMOTIVE PARTSAUTOMOTIVE PARTS

Presented by:Asst.Prof.Dr.Hasan Hacisevki

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ENGINE BLOCK:

ENGINE BLOCKS ARE GENERALLYARE GENERALLY MANUFACTURED FROM CAST IRON OR ALUMINIUM ALLOY. CRANK SHAFT ENGINESHAFT, ENGINE CYLINDER HEAD, SUMP AND OTHER COMPONENTSCOMPONENTS ARE FIXED ON BLOCK.

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A TYPICAL INLINE 4 AND V - BLOCKA TYPICAL INLINE 4 AND V - BLOCK


CRANK SHAFT:

CRANK SHAFT ISCRANK SHAFT IS PRODUCED FROM FORGED STEEL ORFORGED STEEL OR MACHINED STEEL. IT IS SUPPORTED ON BLOCK FROM MAIN JOURNALS AND CARRYINGAND CARRYING CONNECTING RODS AND FLYWHEEL


AND FLYWHEEL ASSEMBLY.

CONNECTING ROD:CONNECTING ROD:

CONNECTING RODS ARE PRODUCED FROM STEEL, ALUMINIUM OR TITANIUM BY CASTINGTITANIUM BY CASTING OR FORGING TECHNICS. THEY CARRIES PISTONSTHEY CARRIES PISTONS AND CONNECTED ON CRANK SHAFT FROM CRANK JOURNALS.


S O CO C G O SSPISTON AND CONNECTING ROD ASSEMBLY:


CYLINDER HEAD :

CYLINDER HEADS ARE PRODUCED FROM CAST IRON ORFROM CAST IRON OR ALUMINIUM ALLOY. IT CARRIES VALVESIT CARRIES VALVES AND VALVE MECHANISMS, INLET AND EXHAUST MANIFOLDS.


VALVES:

VALVES ARE PRODUCED FROMPRODUCED FROM FORGED STEEL. THERE ARE TWOTHERE ARE TWO TYPES;1 INLET VALVES1. INLET VALVES2.EXHAUST VALVES


VALVE ASSEMBLY:VALVE ASSEMBLY:


C S G SDIFFERENT CYLINDER HEAD DESIGNS:


CAMSHAFT:

CAMSHAFTS ARE PRODUCED FROM FORGED STEELFORGED STEEL. THERE IS A LOBE FOR EACH VALVEFOR EACH VALVE ON THE CAMSHAFT.


MANIFOLDS:MANIFOLDS:

THERE ARE TWO TYPES OF MANIFOLD WHICH ARE INSTALLED ONARE INSTALLED ON CYLINDER HEAD.1. INLET MANIFOLD2. EXHAUST MANIFOLD


EXHAUST MANIFOLDINLET MANIFOLD


COOLING SYSTEM :

COOLING SYSTEM IS COMPOSEDIS COMPOSED FROM RADIATOR, WATER PUMP, WATER HOSES, WATER JACKETS, THERMOSTATTHERMOSTAT AND COOLING FAN


FAN.

COOLING SYSTEM

WATER PUMP IS TAKING ITS MOVEMENT FROMMOVEMENT FROM CRANK SHAFT VIA A V-BELT. IT IS CIRCULATING WATER WITHIN ENGINE TO REMOVE HEAT


COOLIN FANSCOOLIN FANSRADIATOR

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THERMOSTAT

LUBRICATION SYSTEM

Lubrication reduces t d f i ti dunwanted friction, and

controls it where it is useful. It reduces wear on moving parts. Clearances fill with oil so that engine parts movethat engine parts move or float on layers of oil instead of directly on

h th M h leach other. Much less power is needed to move them and that’s a


plus.

It helps to cool the engine. It collects heat from theIt collects heat from the engine, then returns to the sump, where it cools. It helps to absorb shock loads. A power stroke can suddenly put as much as 2suddenly put as much as 2 tonnes force on main bearings. Layers of oil cushion this loadingcushion this loading. Oil is also a cleaning agent. It collects particles of metal pand carbon and carries them back to the sump. Larger pieces fall to the


Larger pieces fall to the bottom.

OIL PUMP:Oil pumps may be driven from the camshaft or the crankshaftthe camshaft or the crankshaft. In a rotor-type oil pump, an inner rotor drives an outer one. As they turn the volumeAs they turn, the volume between them increases. This larger volume lowers the pressure at the pump inlet.pressure at the pump inlet. Outside atmospheric pressure is then higher. This forces oil into the pump, and it fills theinto the pump, and it fills the spaces between the rotor lobes.


OIL FILTER:The oil filter helps to clean the oil in the system. If the filter clogs a valve opensclogs, a valve opens and directs unfiltered oil to theunfiltered oil to the engine. Most oil-filters on diesel engines are larger than those on similar

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gasoline engines.

FUEL SYSTEMFunction of the fuel system isto store and supply fuel to theto store and supply fuel to thecylinder chamber where itcan be mixed with air,vaporized, and burned tovaporized, and burned toproduce energy. The fuel,which can be either gasolineor diesel is stored in a fueltank. A fuel pump draws thefuel from the tank throughfuel lines and delivers it

f fthrough a fuel filter to either acarburetor or fuel injector,then delivered to the cylinderchamber for combustion


chamber for combustion.

FUEL SYSTEM


CARBURETORCARBURETOR

A carburetor is basically d i f i i ia device for mixing air

and fuel in the correct amounts for efficient combustion. The carburetor bolts to the engine intake manifoldengine intake manifold. The air cleaner fits over the top of the carburetor t t d t d di t Thto trap dust and dirt. The basic carburetor consists of the following


parts:

CARBURETOR SYSTEMSThe seven basic

b t tcarburetor systems are the following: 1.Float system1.Float system 2.Idle system 3.Off idle system 4.Acceleration system 5.High-speed system 6.Full-power system 7.Choke system


AIR AND FUEL FILTER

AIR FILTER IS USEDAIR FILTER IS USEDTO FILTER COMINGAIR TO PROTECTAIR TO PROTECTENGINECOMPONENTSCOMPONENTSAGAINSTEXCESSIVE WEAREXCESSIVE WEAR.


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