What is firing order of an engine...?

Firing order is the sequence in which the cylinder delivers its power stroke. On the other hand, Firing order is the configuration of either plug wires or diesel injectors the way they are set and each engine type has it's own

What is this Octane number or RON (Research Octane Number)?

Octane is the hydrocarbon constituent contained in gasoline fuels . as well as It is a colorless liquid that boils at about 125 ° C (260 ° F). Isooctane, a component of this octane component, is used as a reference number for determining gasoline or LPG fuel standards to resist self-combustion. 

How is the battery charged when the car is started

The alternator converts mechanical energy that is generated by the engine into electrical energy that is used to charge the battery and to power the vehicle's electronic devices

An alternator that works like a generator, it uses rotational force to generate energy, it is attached to the engine pulleys by a belt, so as the engine starts running, it also runs then it sends the generated power to the battery for a charge.it has a stator coil, a rotor and a diode

What causes black smoke comes from engine

when you start your engine then you press the pedal down you will see black smoke and then it will cut off it is just a rich mixture but if when driving a black smoke is out just know that fuel is not completely burnt due to blow-by which is caused by worn-out piston rings or worn-out liners. the remedy is to replace the piston rings if the liners are ok.

Turbocharger :
is mechanical equipment used to increase the power of the engine through increasing the amount of air in the engine cylinder

Anti-lock braking system

Anti-lock braking system helps in locking all the wheels when a car stops at once and it turns easily on a sharp corner

Especially when we use emergency breaks, and vehicles are not going to disbalancing

Functions of the flywheel?

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It's store mechanical energy during the stroke (piston/crankshaft)

One of the flywheel functions is increasing starter torque to start the engine

Connects to the starter motor...and gives energy to the crankshaft for starting an engine

It has two uses to help start a vehicle with a ring gear and transfer energy from engine to transmission it does not store energy

An engine will run without a flywheel the harmonic balancer helps balance the engine if it is not internally balanced

       store energy

       to control the engine balance

       as a clutch member

To give dynamic inertia to an engine; produce balancing force to the crankshaft and piston assembly mounting part of the pressure plate and clutch disc; use for engaging engine starter

Transmit engine torque to the clutch

Engine balance. Power transfer through the clutch system

It keeps the engine rotating due to its mass during idle strokes

To store kinetic energy and releases it during idle stroke To balance the crankshaft

To wait for the starter to engage to its teeth and start the engine and keep it running

It’s the reservoir of turning force in engineering or engine. The torque

Too ensure smooth operation and running of the engine or equipment by absorbing and releasing both k.e and p.e to avoid peaks of both.

to transmit power which is kinetic from the engine as the engine start

The purpose of the flywheel is to help the crankshaft complete its revolution right after power stroke. It helps the pistons complete the four cycles.

Store energy and use to revolve the engine to start up so that piston can go upward and downward to run the engine.

To balance the engine during dynamic speed

when the starter teeth engage with flywheel teeth, it aid rotation

it balances the weight of the engine when in motion

To avoid fluctuation of power produced by the engine

When you have prime mover with more than 1 piston, the TDC BDC top dead center, bottom center of each piston crankshaft connecting rod, will be in different positions. So to bring it up and bring a smooth circle, you need a damper to store energy as well to give energy. That is the reason flywheel has holes. If you remove the flywheel and run an engine, the crankshaft will break. The force to equalize is centrifugal. Ie flying wheel.

It keeps the engine rotating due to its mass during idle strokes

A flywheel is used to control the fluctuations of speed

It is used to gain momentum and thus making the crankshaft to run at high speed

To mount the clutch kit and balancing crankshaft rotation

used to control the fluctuation of torque/speed of crankshaft by means of stored and released energy. 

It Rotates The Crank Using Starter Motor Or It Cranks The Engine Using Starter Motor

To make the continuity & provide the energy in suction compression & exhaust 

To store energy during the power stroke and to supply it during other strokes. 

It Can store energy in the form of inertia. which provides balance with timing. and the engine can work good in that's four-stroke 

It rotates the engine When you start a vehicle, you are automatically turning the flywheel 

A flywheel is used to transfer electrical energy to mechanical energy 

It provides smooth running of the engine at the idling speed. 

It is used to transfer energy from the engine to the differential in a smooth transmission way and also used as a shock absorber of the engine 

To keep the engine in constant motion as the Pistons are reciprocating. 

To absorb energy (rotating) during the power stroke and to supply energy during the other three strokes 

For operate the next three-stroke after the power stroke .flywheel store energy in power stroke end-use it next three-strokes

to store power which helps to move the piston from BDC to TDC 

It transmits the actions of the crankshaft to the gear system for utilization 

it provides smooth rotation of the engine, so as to promote the momentum turning during none power strokes

                  is where the clutch assembly mounted
                  locate the starter ring gear
                  transmit drive from the crankshaft to the clutch assembly

It controls the amount of current given by the coil and in the same vain balances the engine motion and weight.

In the diesel engine, it helps the engine to start & balance the rotation of the engine to enhance Smooth rotation

Is to turn the crankshaft using the power of stater to deliver the torque provided by the engine to the gearbox.

It stores up a part of the energy produced by the power stroke and release it during the idle stroke. Due to its momentum, it helps in the smooth running of the crankshaft. The flywheel fitted with a starter ring gear which is engaged by a pinion on the starter motor.

First is to keep the engine rotating in the same direction eg when the piston is at the top dead center or bottom dead center it could reverse the direction of rotation but the flywheel keeps or makes the continuation of the direction of rotation. Secondary it has a face where the clutch is pressed to transmit the engine torque the whole transmission system of the vehicle. In other engines like small electric generators, the flywheel keeps en gives the absolute weight the make continuation of the rotation direction of the engine!

Piston up and down moving to balance

It maintains the speed of the rotation of the engine so that it doesn't stall easily

Smoothing the engine rotation and store the energy as (momenton=m*v)

In simple words *Power Storage* Let's just simply this term Whenever we get the power stroke in each cycle then the Power generated in each stroke is not equal so if it will not be heavy then we will get the fluctuating power which might damage the gears. That's why this is made heavy to supply constant power and velocity. And out of 4 strokes only in one stroke, we will get the power so in other 3 strokes the power is supplied by flywheel

A flywheel is a reservoir of energy helps to exert its jerky motion & helps to smooth rotary motion of the engine

It has two uses to help start a vehicle with a ring gear and transfer energy from engine to transmission it does not store energy

An engine will run without a flywheel the harmonic balancer helps balance the engine if it is not internally balanced

during on starting time engine can not provide the same Energy every time so maintain of energy due to the use of flywheel

Difference between direct and indirect fuel injection?

• Indirect injection, injector spray directly on the piston and indirect injection injector spray fuel in cylinder head combustion chamber.

What's the function of the clutch plate and pressure plate?

• Clutch plate transfers the power of flywheel to gearbox and pressure plate transfers power to the clutch plate


• These components are found in manual driven machines or vehicles so the clutch plate it's the main purpose is to transmit engine power to the gearbox when it's engaging and the pressure plate only do two functions thus to disengage or engage power from the engine to the gearbox when u press ur clutch pedal meaning u want to disengage engine power to help select the right gear

The difference between manual and automatic transmission

• to engage and disengage the performing of transmission manual is to use manually engaging and performing the clutch and gear therefore automatic is to disengaging clutch because is the automatic gear

Top Causes of Low Engine Compression

two many things it can be compressor rings, it can be valves, It can be air escaping out of your combustion chamber through the plugs holes or injector holes. Check if seals on injectors (Orings) are good and the washers on plugs if it seals. 

What is the purpose of a thermostat valve as used in the cooling system of an automobile

• To regulate the flow of coolant so that engine comes to working temperature early
• A thermostat is used to control cooling closed when very cold condition

car dashboard symbol meanings in automobile

In the case of a motor vehicle today, there are a number of different systems that are operated by different technologies, all of which are controlled by electronic control units. The system controlled by each of these systems is not located in the same location of the car and is scattered throughout the car. Under these conditions, when these systems are in connection with the car, all functions of each of these systems are controlled by the driver. The indicator lamps are mounted in a convenient location so that the driver can easily see the performance of each system. These indicator lamps When operating the systems indicate to the driver about that By lighting a bulb. For these indicator lamps that are created in a variety of shapes and colors, Filament bulbs were used, and today's motor vehicles use LED bulbs. These are lit on the back of the Dashboard and the shape on top shows the driver With a corresponding color.

Why diesel engines are not so popular in cars?

The diesel engine has a heavy sound, & black smoke

Diesel engines are required for heavy-duty jobs and humans are not heavy duty so it's not needed for passenger cars

Loud noise, more vibrations

It is more expensive, power - to -weight ratio is low. 

Diesel engines have higher torque but not too efficient with speed.

a passenger or self-use car the diesel engine is not famous due to its maintenance problems Diesel engine required proper maintenance and diesel engine spare parts are too costly than petrol engine in cold weather Diesel can Freezed diesel engine required heavy Battery for ignition.if diesel engine fuel tank empty the automizer Airlock and without push or to chain engine not start. The diesel engine has no power full pick than the Petrol engine also the bad sound black smoke.

For passenger comfort, petrol engineered vehicles have a quieter operation than diesel ones that have tensional vibrations. Petrol vehicles have longer service span than diesel, thus pocket friendlier in terms of maintenance.

when you talking about commercial vehicles, it is due to- Vibration due to much power generation. very costly, and expensive to maintain. less speed than petrol engines.

So diesel engines are not popular for cars.....

The Engine

The engine is used as a prime mover to get the power needed for a motor vehicle. And also Various fuels are used as the energy source.

The main function of an engine is to convert Thermal energy into kinetic energy when the fuel supplied to the engine is burned.

The evolution of automobile technology

With the advancement of man, transport has taken a special place in society. In the past, human and animal power was used to transport rickshaws and horseshoes. Then With the invention of the steam engine, a new chapter in the transportation industry began. It was the beginning of the field of transport technology. Not long after, the invention of the internal combustion engine made a big difference in the transportation industry. It was an initiative for modern Automobile technology.