Such an excessive load negatively affects the condition of most parts of the crank mechanism (read about the device of this mechanism separately), on valves, hydrocompensator each of them, etc. 1) Spark plug 2) Combustion chamber A) Normal fuel combustion C) Knocking combustion of gasoline. In some cases, this value can reach up to 2 thousand m / s. At the same time, the MTC burns out much faster. The detonation effect is uncontrollable and chaotic. Combustion in this case occurs at a speed of 30m / sec. Under normal conditions, a mixture of air and fuel compressed in the cylinder, when a spark is formed, begins to ignite evenly. Many motorists in this case say that it is "knocking fingers." Often this process can be recognized by a ringing metal knock. ![]() Because of this, the flame spreads unevenly throughout the chamber and there is a sharp push on the piston. Detonation is when a portion of the air / fuel mixture farther from the spark plug electrodes ignites on its own.
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