Troubles in Engine system

1. About “ Troubles in Engine system”
GROUP- V
Welcome to our
Presentation

2. There are two types of Engine are as-
1) Internal Combustion Engines (IC Engines)
2) External combustion engine (EC Engine)
Engine:
An engine or motor is a machine designed to convert one
form of energy into mechanical energy.

3. Internal Combustion
Engine’s Parts

4. IC ENGINE EC ENGINE
1. The internal combustion
engine is an engine in which
the combustion of a fuel
(generally, fossil fuel) occurs with
an oxidizer (usually air) in
a combustion chamber.
1. An external combustion
engine (EC engine) is a heat
engine where an internal
working fluid is heated by
combustion of an external source,
through the engine wall or a heat
exchanger.
2. The combustion occurs inside
the engine.
2. The combustion occurs outside
the engine.
3. In external combustion engines,
the combustion products is used to
heat a second fluid that acts as the
working fluid.
3. In internal combustion engines,
the energy source is a combustible
mixture, and the combustion
products is the working fluid.
4. Examples: Gasoline engines,
Diesel Engines, Chemical
Rockets, Gas Turbine Engines
etc.
4. Examples: Steam Power
Plants, Home Heating furnaces
fueled by gas or oil, Starling
Engines etc.

5. 1. Aircraft engine
2. Automobile engine
3. Model engine
4. Motorcycle engine
5. Marine propulsion engines
such as Outboard motor
6. Non-road engine is the term
used to define engines that
are not used by vehicles on
roadways.
7. Railway locomotive engine
8. Spacecraft
propulsion engines such
as Rocket engine
9. Traction engine
10.Gasoline engine
11.Hesselman engine
12.HCCI engine
13.Hot bulb engine
14.IRIS engine
15.Solid-state engine etc.
Various types of engine
are as-

6. Low Power and Uneven Running:
 Engine overheating
 Improper fuel grades
 Carburetor icing
 Cracked pistons or cylinders
 Wet or defective ignition wiring
 Bent crankshaft
 Spark plug wires crossed
Reasons behind of troubling
in different Engine system

7.  High Oil Temperature:
 Insufficient oil supply
 Airflow through oil cooler b
locked
 Overheated bearings
 Improper ignition timing
 Improper grade of fuel
 Improper grade of fuel
 Cylinder baffles missing or
insecure etc.
 Excess Oil Consumption:
 Improper grade of oil
 Improper venting of oil syste
m
 Piston rings worn, broken or
incorrectly installed
 Cracked pistons
 Defective supercharger seal
 Piston oil drain holes clogge
d
 Oil pressure too high
 Too much clearance between
intake valve and guide etc.

8. Insufficient oil supply
Oil pump not primed
Foreign matter in relief valve
 Broken oil line
 Excessively diluted oil
Oil congealed in intake line
Leak in suction lines
Worn oil pump gears
 Broken oil pump gears or drive shaft
Low Oil Pressure:

9.  Improper grade of oil
 Pressure relief valve stuck closed or improperly adjusted
 Oil cold or frozen
 Oil pipe bent or crushed
 Oil Screen or filter clogged
 Bearing tight due to engine overheating
High Oil Pressure:

10.  Loose spark plug connectors
 Water or oil in magnetos
 Burned or pitted contact breaker points
 Incorrect idling speed adjustment
 Air leaks in induction system
 Low cylinder compression
 Internal carburetor trouble
Failure of Engine to
Idle Properly:

11. Magnetos grounded
Out of fuel
 Air vent or fuel tank obstructed
Internal structural failure
Fuel lines partially obstructed
Sheared timing gears
Air or vapor lock in fuel line
Engine Stops:

12.  Propeller out of balance or out of track
 Bent crankshaft
 Engine too cold
 Engine loose on mount
 Improper ignition timing
 Carburetor icing
Engine Vibrates Ex
cessively:

13.  Retarded spark or spark timed late
 Defective water circulation
 Thin oil
 Running air cooled engine on ground too long
 Insufficient oil cooling
 Insufficient oil supply
 Excessive carbon
Engine Overheats:

14. Mixture too lean
Improper grade of fuel
Air leaks in induction system
High carburetor air inlet temperature
Magnetos improperly timed
Damaged cylinder baffles, fins, or restri
ctions in airflow
High Cylinder
Head Temperature:

15.  Magneto ground wires loose or broken
 Faulty magneto switch
 Engine excessively hot
 Incandescent carbon in cylinders
Engine Won’t Stop
When Switch is Tur
ned Off:

16.  Engine flooded with oil
 Worn piston rings
 Inferior quality of engine oil
 Rich mixture
 Engine operated for long period without
cleaning carbon
֎Causes of Excessive Carbon
Deposit:

17. Thank you very
much....
v