FIELD: examination of lubrication system parameters and ensuring the continuity of oil flow to the connecting rod bearings in rotating crankshaft of internal combustion engines. SUBSTANCE: indicator has a body of transparent material, oil duct throttled at the inlet and outlet, the oil duct is installed in the oil gallery of the crankshaft, made in the form of two or more tubes, whose intake ends are installed at the oil outlets to the connecting rod bearings, and the outlet end are bent through 90 deg, located inside the body with a shift relative to the axis, the body is cylinder-shaped. An opening is made in the lower part of the body. EFFECT: enhanced service life of the internal combustion engine. 1 dwg
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