This instrument gives a technique for assessing the situation of inner combustion engine cylinders. It capabilities by injecting pressurized air right into a cylinder at high lifeless middle on its compression stroke and measuring the speed at which that air escapes. The outcome reveals the presence and severity of leaks previous valves, piston rings, or head gaskets. An instance utility can be diagnosing low compression in an engine suspected of inner injury.
The process gives a extra direct evaluation of cylinder sealing integrity than a typical compression check. The audible location of escaping air helps pinpoint the supply of the leak. This identification avoids pointless disassembly and focuses restore efforts on the particular drawback space. Its use dates again to the mid-Twentieth century with developments mirroring enhancements in engine know-how and diagnostic strategies. The advantages embrace diminished diagnostic time, improved accuracy in pinpointing engine issues, and prevention of pointless repairs.