Diesel engines have a mileage of at least 100,000 to 150,000 km.
Vehicles that, during operation, have a small number of cold starts and. as a rule, they are operated at a low number of revolutions, as well as in professional use, they last longer. If there is no mechanical damage to the diesel engine (broken valves, pistons or connecting rods), then in the future it will be necessary to contend with significant difficulties when starting at low temperatures. The reason for this is increased wear on the cylinder surfaces in the area of the return point of the first piston ring (so-called wedge wear). At the same time, a circular deep recess is formed on the surface in this area, which prevents the piston ring from maintaining the necessary compression in the combustion chamber when the engine is started. The air in the combustion chamber does not heat up sufficiently during the compression stroke and the injected diesel fuel does not ignite despite a functioning preheating system.
If towing is used, then the engine, which is helped to reach a high number of revolutions, can at the same time reach the necessary compression, At which again ignition becomes possible. In the future, it is unlikely that the driver of a diesel car will be able to constantly use a tug on cold days. In this case, you need to do the replacement of parts.
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