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Engines are located at the top of the piston. The suction valve is opened with the movement of the piston. Fresh air does not enter the engine first. However, with the slow down of the piston, there is an expansion in the area where the air will enter the cylinders and fresh air enters. Fresh air is introduced into the cylinder until the piston reaches the lowest level. The piston goes up a little to get more air and the cylinder fills with fresh air as much as possible. The introduction of more air into the cylinder makes the firing stronger.
The valves that are opened at the first stage are closed at this stage and fully compressed. When the piston reaches the highest level, the volume in the cylinder reaches the lowest level and with the heat generated, it prepares the ground for the conditions required for firing at approximately 500 degrees. The heated and pressurized air meets the fuel parts in the combustion chambers and prepares for ignition. The important thing is that the amount of fuel is optimally adjusted. Problems experienced at this point may cause crankshaft and other parts to be damaged and more serious problems may occur.
In the engine, the ignition of which is done, the piston is pushed down again. The piston then sends force to the crankshaft. In commonly used four-stroke engines, the piston goes down once with the ignition and once with its other moment powers it makes an empty turn. Thus, existing waste materials can be easily removed from the exhaust.
After all these stages, while the piston goes down completely, it goes up again with the effect of other parts. Meanwhile, the suction valve still maintains its closed position. With the opening of the exhaust valve, the piston returns to its highest position and gases are started to be thrown out from the combustion chamber. In this way, the full meaning of the ignition is realized and the vehicle can be started to be used.
Ignition system components and events are unique to a four-stroke engine. In two-stroke engines, firing occurs in every cycle. These operations are carried out for each piston separately and in order. The parts that can maintain the order in ignition systems working with a large system are called distributors. Each cylinder in the vehicles is fired one by one with the distributor taking an angle of 90 degrees. The number of revolutions in the cars also concerns the frequency of the engine in the ignition systems. These confused structures ensure that the vehicle runs smoothly. Besides the distributor, the ignition coil, spark plugs, distributor cables are also part of the engine ignition system. Ignition system failures can cause serious problems in the engine.
Ignition coil;
When the ignition coil fails, it is possible to understand the problem by certain methods. If the coil breaks down, the engine of the vehicle starts vibrating, it stops automatically at idle, the engine runs late and difficult as soon as the starter is pressed, the vehicle's traction absolutely drops and therefore starts to consume a lot of fuel.
It is easy to find a fault in its coil. If the vehicle has an independent electronic ignition system, the reaction of the engine is checked by removing the socket of the ignition coil, as in the new model vehicles that can operate without the spark plug cable. If there is any vibration or vibration in the engine when the socket is removed, that ignition coil is intact. If there is no change in the operation of the engine as soon as the socket is removed, that ignition coil is defective and there is no combustion since there is no spark in the cylinder. If ignition does not occur in the controlled cylinder, the spark plug of the spark plug or spark plug may have malfunctioned. The spark plug should be checked to make sure, and if the spark plug is intact, the ignition coil is defective.
If it is explained how to disassemble the ignition coil, the electrical socket of the coil should be removed and a bolt fixing to the cylinder head of the coil is removed. Thus, the ignition coil can be removed by pulling it up. The most important warning that should not be made is that the spark plug ignition coil should not be removed when the engine is hot. If the vehicle has a single ignition coil and spark plug cables, an insulating glove should still be used. In addition, the spark plug wires must be pulled in order, if the engine is shaking, the ignition of the towed cylinder is solid, and the spark plug is also intact. If the engine does not respond at all when the spark plug cable is removed, there is a ignition failure in the cylinder, and the spark plug is also likely to be defective.
Spark plug is the machine part that ignites fuel-air mixture in internal combustion engines. The spark plugs form a spark, bypassing high voltage electricity between two electrodes. Fuel that approaches the combustion point under pressure in the cylinder is ignited by this spark.
16 окт 2024