TY CONF TI DIFFERENTIAL DIAGNOSTICS OF INTERNAL COMBUSTION ENGINE COOLING SYSTEM FAULTS: SEPARATING COMBUSTION CHAMBER SEALING DEFECTS AND INSUFFICIENT PUMP PERFORMANCE KW engine diagnostics KW cooling system KW cylinder head crack KW gasket burnout KW coolant pump KW heat balance KW gas breakthrough index KW pump performance index JO MODERN TECHNOLOGIES AND SYSTEMS IN TRANSPORT: PROBLEMS AND PROSPECTS AU Novikov, S.V. AU Korneev, A.S. PY 2026 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov