Tulenov A., South Kazakhstan University named after M. Auezov
Avliyokulov J.S., Magdiev Sh.P., Tadjiev R.D., Tashkent State Transport University

Abstract. The operation of internal combustion engines in hot and dusty climates presents challenges that impact engine performance, reliability, and longevity. This paper examines the effects of high temperatures and dust-laden air on the electrolyte levels in batteries, oil degradation, and the formation of carbon deposits in the lubrication system. Key maintenance procedures, including oil filtration, crankcase ventilation, and flushing techniques, are explored to mitigate these challenges. The study highlights the importance of using advanced oil filtration systems and scheduled maintenance to ensure optimal engine performance. Recommendations for maintaining lubrication system efficiency in extreme environments are provided.

Keywords: Engine lubrication system, high-temperature operation, oil degradation, filtration system, crankcase ventilation, engine maintenance.

Introduction: Operating vehicles in hot and dusty climates requires special attention to engine lubrication systems. Elevated ambient temperatures accelerate oil aging, increase mechanical impurities, and promote the formation of carbon deposits in critical engine components. Additionally, dust particles infiltrating the lubrication system contribute to wear and contamination. This paper discusses the necessary precautions and maintenance strategies to ensure engine longevity and efficiency under extreme environmental conditions. During prolonged operation of vehicles at elevated temperatures, the amount of carbon deposits and resinous substances in the cylinder-piston group of the engine, in the oil lines and on the lubrication system devices increases sharply. When preparing the engine lubrication system for operation in high temperature conditions, it is necessary to check the serviceability of the instruments and mechanisms of the lubrication system and thoroughly clean the internal cavity of the engine from resin deposits.The instruments are checked on a running engine preheated to 70°C, and the lubrication system is flushed with clean industrial oil, heated to 80°C, intended for this type of engine.