2. Group Member name
Nur -E- Alam Siddike - 10307050
Arup Mazumder - 10307012
Abul Hasnath - 10307022
K md Brohan - 11307008
Shima - 11307007
Md. Shake Rasel - 10207051
2
3. Objective
To know about Internal Combustion
Engine
To know about the trouble of Internal
Combustion Engine
Fixed the problem of Internal
Combustion Engine
3
4. Engine can avoid many troubles by
fallowing the prescribed instructions for
starting and operating the engine.
Troubleshooter generally associates
certain troubles with a particular system or
assembly
4
5. Engine fails to start
ln general, the troubles that prevent an
engine from starting are
(1) the engine can neither be cranked
nor barred over
(2) the engine cannot be cranked, but it
can be barred over
(3) the engine can be cranked, but it still
fails to start.
5
6. Engine do not start for fuel system
Problem
Empty fuel tank
Fuel is old, dirty, or
contaminated
Faulty wiring and
connection problems
in the fuel system
Fuel pump not
working
Fuel supply hose
damaged, distorted,
or improperly
attached
Solution
Fill-up the fuel tank
Change the fuel
Check and repair
Service the pump
repair or replace
6
7. For Petrol engine
Problem
Fuel pump not work
Fuel pump pressure
low
Fuel line lickage
Carburetor does no
work
If EFI engine injector
not work
Injector pressure low
Solution
Fuel pump repair
Fuel pump repair
Fuel line repair
Carburetor serving
Injector change
Injector change
7
10. For Diesel engine
Problem
Fuel pump not work
Fuel filter highly jam
High pressure pump not
work
Injector not work or
pressure very low
Fuel line damage or lickage
Air lock
Solution
Fuel pump servicing
Fuel filter change
Pump servicing
Injector change
Fuel line repair or replace
Check the fuel line
10
12. Engine do not start for Ignition system
Problem
Battery is undercharged
Ignition switch faulty
Ignition coil not
functional
Distributor not functional
High-tension lead faulty
faulty spark plugs
Loose plug wires
Solution
Recharge the battery
Ignition switch repair
Ignition coil replace
Checked and repair
Replace the high-tension
lead
12
14. Engine do not start for Starting
System
problem
Battery is
uncharged
Starting motor not
work
Starter solenoid
not work
Starter relay not
work
Loss wire
connection
Solution
Battery charge
Motor repair
Repair solenoid
Starter relay
change
Check wire
connection
14
16. Engine do not start for
lubrication system
Problem
Main oil pump not
work
Oil filter full jam
Engine oil
pressure gauge not
work
If use low quality oil
Solution
Oil pump change
Oil filter change
Oil gauge change
change oil
16
18. Engine Can Be Cranked, but Fails
to Start
Possible causes:
Fuel supply hose damaged,
distorted, or improperly attached
Fuel tank empty
Fuel filter is clogged up
Fuel is old, dirty, or contaminated
Fuel supply hose damaged,
distorted, or improperly attached
Closed fuel tank vent
Inoperative, or clogged
thermostat
Wrong engine oil
Spark plugs defective, wrong,
plugged, or incorrect spark-plug
gap
Solution
Fuel supply hose change
Fill-up the fuel tank
Filter change
Change the fuel
Servicing the fuel system
Clear the vent
Change the spark plug
18
19. Engine start but not run smoothly
Problem
Compression lick
Engine head gasket
lick
Piston ring defect
Ignition coil defect
Spark plug defect
Injector defect
Air filter jam
If EFI(Electronic Fuel
Injection)engine
sensors defect
Solution
Compression ring
change
Head gasket change
Piston ring change
Ignition coli change
Air filter change
Injector change
19
20. Engine knocks
Problem
clogged Carburetor
Ignition Distributor problems
plugged fuel Injectors
Valve timing fails, or faulty
failed or loose timing belt
tensioner
lean air-to-fuel mixture
using fuel of lower than
recommended Octane Rating
Solution
Servicing the
carburetor
Change distributor or
servicing
Change injector
Adjust timing belt setting
Adjust ideal speed
setting
Change the fuel
20
21. Engine knocks
Problem
Anti-Knock sensors
malfunction
Engine is too hot
Carbon deposits in the
combustion chamber, pistons
Faulty or defective main
crankshaft bearings
water pump bearing is worn
out
Flywheel is broken or has
cracks
Solution
Sensor change
Check thermostat
Clean carbon from
combustion chamber ,
piston
Change main bearing
Change water pump
bearing
Fly wheel change
21
22. Engine smokes
Problem
engine is burning oil
worn or broken piston rings
worn valve guide or valve
guide seals
leaking head gasket
broken or cracked engine
head
Air/fuel mixture is too rich
leaky fuel injector
Solution
Change the oil grade
Change piston ring
Change valve guide or
seals
Change head gasket
Change or servicing engine
head
Change injector
22