As the name suggests, the technical term of engine tuning refers to the smooth and precise working of the mechanical and electronic system related to the overall performance of the vehicle engine. has it. Internal combustion engines consist of hundreds and thousands of driving parts, and the coordination and accuracy of operation between these parts guarantees the proper operation of the engine.
Common factors in the adjustment of the car engine
As mentioned, car engine tuning is not only limited to setting the ignition timing and the amount of fuel input, and many other factors are considered in a correct tune-up, which depends on the type of engine, the type of fuel consumed, the computer and mechanical system. (electromechanical) car is done. However, most of these factors are related to the performance of the fuel system, the ignition system, and the ideal operation of the engine, which can be achieved in various ways, including service, cleaning, replacement, repair, and adjustment. Periodic service Performing periodic car service regularly is one of the most basic and important principles of good tune-up and ensuring better engine performance. The most important factors related to the periodic service of oil and oil filter replacement, timing belt inspection and replacement, inspection, cleaning and adjustment or replacement of spark plugs, inspection of the health of wires, inspection of the cooling system pipes, replacement of the engine air filter and cabin filter, inspection of the level and color of the coolant The job is to check and replace the belts and check the level and quality of the gearbox oil. Service is a period of mandatory and non-negligible tasks that the owner is responsible for performing regularly. Cleaning Cleaning the components and parts related to the car engine may seem like an obsessive and unnecessary task that is done only for beauty. But some car components do not need to be replaced, they only need periodic cleaning. For example, car spark plugs can be used for long periods of time by cleaning and adjusting the electrode distance (gap adjustment). Also, many of the problems related to the failure of injection vehicles with mechanical gas valves to function correctly are due to the contamination and locking of the valve mechanism and the stepper motor, which continues to work with cleaning and re-service. Also, continuous cleaning of the engine and under the car can quickly reveal any liquid and oil leaks. Adjusting the air-fuel ratio The volume percentage ratio of fuel to air (oxygen) is an ideal ratio of 14.7:1 (14.7 to 1), which includes 14.7 parts of air and 1 part of fuel. This ratio, which is referred to as AFR or AFR coefficient in technical terms, usually changes and fluctuates up to a significant percentage in different engine operating conditions such as cold weather, when accelerating and when pressing the gas uphill. Interference in the balance between these two factors can cause raw combustion (more volume of fuel compared to the ideal percentage) or low combustion (less volume of fuel compared to the ideal percentage). Deviating from the standard range on both sides of this story can cause unwanted emissions or a significant reduction in engine efficiency and damage. Spark time setting When establishing the proper AFR ratio, it is the vehicle's ignition system's job to provide the ideal timing for the ignition of the air-fuel mixture. Like AFR, ignition timing is a variable factor that changes based on the engine's current performance. If, for any reason, the ignition is set prematurely (advance), it can cause premature ignition and excessive pressure on the piston, connecting rod, and engine crankshaft, which is accompanied by a sound similar to the sound of a knock. If this is done later than the ideal time (retardation), it will cause a significant decrease in combustion efficiency and abnormal heating of the car engine.
