A tool designed to measure the strain inside the cylinder of a two-stroke engine throughout the compression stroke. This specialised instrument sometimes incorporates a threaded adapter to suit the spark plug port, a strain gauge to show the studying, and a launch valve for subsequent exams. The measured strain, expressed in kilos per sq. inch (PSI) or bar, supplies a sign of the engine’s inside situation.
The utilization of such instrumentation gives a important evaluation of engine well being, revealing potential points reminiscent of piston ring put on, cylinder harm, or leaky seals. Common evaluation aids in preventative upkeep, minimizing downtime, and optimizing engine efficiency. Traditionally, these exams supplied important diagnostic data for mechanics engaged on more and more advanced combustion engines, permitting for focused repairs as a substitute of full overhauls.