Many drivers know such a sad fact as carrying out an overhaul of the engine. The main factors are the quality of spare parts used in the repair, and the actual overhaul. Let’s understand what a car owner needs to know before planning a major overhaul.
Basic concepts
At the very beginning of the conversation we will briefly recall the basic concepts from the category “Overhaul”.
Engine life is the mileage of the car, ie the duration of its operation, until the moment of failure, which can not be replaced by the usual adjustment and must be overhauled. How to determine that the engine in your car is broken?
Such indirect and noticeable even to the inexperienced owner of things, as: falling of engine power, increase in a fuel and oil expense, allocation of more toxic exhaust gases (smoke of their exhaust pipe), weakening of starting properties of the engine and others – and there are the first signs of impending overhaul.
Wear of parts – the occurrence of changes in the parameters of any part of the car engine, its shape, size, general condition of all surfaces as a result of exposure to loads of varying severity. The wear process can be accelerated in violation of the rules of operation of the engine and its maintenance, which are specified in any passport for the car.
Maintenance – the elimination of small faults that occur as the car engine.
Medium repair – repair in which the engine is partially disassembled, and worn parts (bolts, cylinder heads, etc.) are replaced with new ones.
Overhaul is a long and voluminous process of complete restoration of all engine characteristics, in accordance with its operational requirements.
What actions of the driver lead to fast overhaul?
Untimely oil change
Accelerated engine wear can be facilitated by your delay in changing the oil and replacing the oil filter, which leads to increased friction forces of engine parts and mechanisms in worse and unfavorable conditions for them. These forces arise due to the fact that there is a decrease in the main qualitative properties of the oil, such as viscosity, the formation of additives, the growth of deposits on parts and channels. In addition, a large amount of waste products is formed in the engine lubrication system.
Poor quality oil
In addition, poor engine wear can accelerate engine wear.
Low-quality oils, which do not have the full range of desired properties and useful components in their composition, increase the ability to form various resinous deposits.
All this can lead to gating of channels (as a thrombus in human blood vessels) the passage of the oil mixture, and this leaves the parts and mechanisms without lubrication – well, as a result, the process of engine wear accelerates, forming burrs and jams.
Filter status
The third factor that affects the wear of the engine is the poor condition of fuel and air filters, as well as a loose connection in the intake system, which can lead to the penetration of dust and dirt inside the engine, which accelerates the wear, especially engine cylinders internal combustion engine and piston.
Adjustments and minor breakdowns
Another factor that accelerates the process of motor wear – the later elimination of various faults in the engine and improper adjustment of its parts.
For example, if the camshaft “knocks”, it is likely that it will be the main source of stable contamination of the lubrication system.
In addition, the destruction of the engine pistons and the surfaces of the combustion chambers can contribute to:
- incorrectly set ignition advance angle;
- some inaccuracies in the operation and malfunction of the fuel injection system;
- malfunctions in the engine control system;
- incorrectly selected for your car model spark plugs.
All of the above can contribute to detonation in the ignition system, and as a consequence of the failure of the piston and combustion chambers. High cylinder heating of the engine as a result of breakdowns in system of its cooling can deform heads of the block of cylinders. Friction motor parts can “break” faster, if the film of oil in the friction mechanisms and parts is not cooled enough, it becomes less durable.
If the car is diesel, the pistons may burn out due to malfunctions in the fuel equipment.
operating mode
In addition to all of the above, engine wear is also affected by the mode in which you operate your car. The service life of your car can be reduced by 30 and more percent if the engine works constantly at the maximum possible loadings and at high turns of the engine (sharp gas and a sharp brake – the main enemies). Moderation of driving is a very important point in the longevity of the car engine.
Approximately 70% of motor wear occurs due to incorrect engine start mode.
Particular attention should be paid to cold start, when the engine is filled with oil that has a viscosity and temperature that do not meet the standards and characteristics. During short winter trips on an unheated engine, deposits in the engine lubrication system may occur, as well as the formation of corrosion on the broken, their rings and cylinders.
