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Inside the engine you have pistons attached to rods that are attached with bearings to the crankshaft. The crankshaft has offset points where the rods attach. The pistons are housed in cylinders and on top of the cylinder you have what is called a head. Inside the head are valves that let a fuel and air mixture into the cylinder. The valves are operated by the camshaft which is somehow geared to the crankshaft. As the piston moves up in the cylinder during the compression stroke, the fuel/air is compressed and a spark then ignites the mixture driving the piston down which turns the crankshaft causing one of the other pistons to go up compressing the gas in that cylinder. When this explosion occurs, the piston gets slammed down. That is the power stroke. That causes the crankshaft to turn, sending power to the transmission which in turn allows the car to move. Then the piston returns because of the momentum of the flywheel and the force of the other pistons if there are any. At the same time, a valve opens allowing the burned fuel air mixture to leave the cylinder and flow through the muffler and out the tailpipe. That is the exhaust stroke. Then the exhaust valve closes as the intake valve opens, allowing new fuel mixture to get sucked in during the intake stroke. Then the compression stroke outlined above repeats the entire cycle.
That is pretty basic but it should give you an idea of how it all works. Below are some of the common variations of this.
A diesel engine works similarly, but the detonation is caused by compression rather than ignition. Instead of spark plugs, it is the pressure inside the cylinder which causes the fuel mixture to explode. Fuel injection is required to get the amount of pressure necessary for detonation to occur. Glow plugs are only needed to warm the engine for starting, and a larger starter, battery, and alternator may be required. The cylinder walls might also be thicker. Otherwise the process works pretty much the same as for a 4-stroke gasoline engine.
Then there is the rare Wankel engine that Mazda once used. It contains one or more rotors that have 3 surfaces. There is a rod called an eccentric that functions similarly to the valves of a 4-stroke reciprocating engine. However, a rotary engine is technically a 2-stroke engine since every rotor surface fires once per revolution of the crankshaft, while in a 4-stroke reciprocating engine, the cylinder only fires every other rotation. Anyway, the spark plugs fire and the explosion causes the rotor to rotate, sending the power to the transmission and wheels. Then as the rotor turns the eccentric opens the exhaust port to let the exhaust out and opens the intake port to allow new fuel mixture inside, readying the rotor to fire again once that same surface reaches the same location. The other surfaces fire while the first surface is readied to fire again.
In 2-stroke engines such as in some motorcycles and yard equipment, the pistons also double as valves and both sides of the pistons are involved. So that means that the fuel requires a lubricant to be added since the fuel passes through the crankcase. While the piston is in the power stroke, new fuel air mixture is sucked into the crankcase for the next power stroke. Then ignition occurs, the piston is forced down as part of the power stroke and then the exhaust and intake ports are cleared. As the downward stroke forces new fuel-air-lubricant mixture into the cylinder, the exhaust is cleared, and the piston is again in the compression stroke.
Wiki User
∙ 7y ago
Wiki User
∙ 13y agoThe solenoid activates the contact when the ignition key is on which inturn turn the engine then starts the engine.
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Where is the starter motor on a rover 75?
The starter motor is at the rear of the engine.
How will you test starter and choke in fluorescent tube?
You can use a wire instead of the starter to test the tubes .. I did it, it works !
Why will the starter motor not start a Toyota Celica?
It depends if the starter is turning the engine over and its not starting the problem is not with the starter its with your ignition or fuel system most likely, If your start is making a whirring sound then its not making contact with the flywheel and you probably need a new starter
How cng engine works?
extended interval oil for CNG/gasoline engine (bi-fuel engine)
Can you make a diesel engine which works on the basic principle of petrol engine or you can say it uses diesel as a fuel but works on the principle of petrol engine?
No, a diesel is a compression firing engine and a petrol is a spark firing engine. Diesel fuel will not burn in a petrol engine with spark plugs.
Where is the starter on a 1999 Chrysler Sebring convertible?
The starter is on the front of the engine, behind the engine mount bracket.The starter is on the front of the engine, behind the engine mount bracket.
Starter location on 1994 Altima's Engine?
Where is the starter located on a 1994 altima engine
Your car won't start what could it be?
Need more info like, does the starter engage? Does the starter turn the engine over? Does the starter turn the engine over but the engine does not run?
Where is the starter on a 2006 Nissan Altima?
The 2006 Nissan starter can be found on the right hand side of the engine. The starter will be near the bottom of the engine.
Where on a 2000 chrysler cirrus is the starter solenoid?
It is on the starter which is on the front lower side of the engine.It is on the starter which is on the front lower side of the engine.
What part of the starter prevents the engine from driving the starter once it is started?
The starter motor
How does motor liquid starter works and what is the advantage of using it?
Starter fluid works because it is a little more combustible than gasoline. Sprayed into the intake it will ignite and start any engine that has fire. It is mostly used to start a vehicle after running out of fuel or doing fuel system repairs.
Where is your starter in your 96 Chevy pickup?
Starter is located on passenger side of engine. On the side of the engine at the bottom.
Where is a starter located on a 2000 Cadillac STS?
the starter is located inside the engine...you will need to open the engine to get to it.
Where is the starter for a 2000 Mercury Sable?
The 2000 Mercury Sable starter can be found on the right hand side of the engine. The starter will be near the back of the engine.
Why wont engine start but other electrical items work?
you either dont have enough charge in your battery to turn the motor over, or your starter is bad. might also want to check your starter relay to see if it works.
How a soft starter works?
nothing
