Many motorists, because of their inexperience or impatience after a major overhaul, immediately seek to check how much their car has become more powerful. This is the greatest mistake that a motorist can make in relation to his "iron horse". Even the smallest repairs take away most of the power of the car engine, and to return it, you have to wait.
What is engine break-in? Engine break-in is necessary in several cases - if the car is new, if it is only with a
major overhaul, if it has been idle for a long time. And remember that a car that has just left the assembly line is easier and faster to drive in than a repaired one.
The purpose of the article is to answer the question of how the engine is run-in after repair. Let's consider it in more detail. To do this, you must first find out why the engine is generally run-in. When
overhauling an internal combustion engine, parts that fail are replaced. Right? The surface of new parts always has irregularities at the microscopic level, which are beyond the human eye. This is where the engine breaks in. It is made in order to “make friends” with new workable parts.
Unlike a car that has left the assembly line, the break-in process of a repaired engine is of a different nature. The basis for the successful completion of the procedure is the many hours of engine idling to pass the first break-in stage. After the initial stage,
the internal combustion engine needs to be exploited in a scrupulous mode for 2-4 thousand kilometers. Avoid heavy loads, ride at low or medium speeds.
The engine break-in after major repairs should be even. In the first few thousand kilometers, in no case should sharp jumps be made in revolutions. However, sudden acceleration and braking are simply unacceptable for a new engine. Conclusion: it is better to carry out these procedures on a free highway than in a city where sharpness and attentiveness often become a departure from an accident. Also, engine break-in should be avoided in difficult road conditions (dirt, snow, etc.).
Engine break-in in each situation according to the time frame occurs in different ways. Usually it is 5-10 thousand kilometers. Many motorists try to pass this period as quickly as possible. And many of these same motorists simply don’t realize that new parts overheat faster, and when the engine is running for a long time, the break-in quality is significantly reduced.
Beginners and car enthusiasts with experience, remember that proper break-in of the internal combustion engine will significantly extend the effective use of the car without losing precious minutes on unscheduled downtime and repairs. And further power, which will return during the break-in, will depend on how carefully the new parts are “rubbed” to each other.