METHOD OF AND DEVICE FOR CHECKING FOR LEAKAGE AND LOCATION OF ANY LEAKS IN INTAKE AND EXHAUST SYSTEMS OF FUEL INJECTION INTERNAL COMBUSTION ENGINES FOR AUTOMOBILES Russian patent published in 1994 - IPC

FIELD: leakage tests. SUBSTANCE: checking comes to the following: compressed air is delivered into engine intake manifold C at preset pressure, pressure is checked before intake manifold C, air is let out from intake manifold C and its pressure is measured. Pressure at outlet is compared with pressure at inlet and, if its value is less than preset value, air delivery pressure is increased to locate place of leakage. EFFECT: enhanced reliability of checking. 8 cl, 1 dwg