This automotive Engine cylinder Compression Tester pressure tester instrument kit works with most car models with gasoline engines.Compatible with gasoline engines for cars, motorcycles, trucks, lawn mowers, ATVs, etc.The compression tester includes adapters and pipes in various sizes to fit different models. It is widely used to quickly and accurately check compression in engine cylinders.11Pcs Compression Tester Gauge setSpecification:Test Unit/Mode: Bar, PSIMaterial: Metal, RubberPressure gauge diameter: 75mmFive thread size: M10 x 1.0mm, M12 x 1.25mm, M14 x 1.25mm, M16 x 1.5mm, M18 x 1.5mmHose with tension bar length: 16 inchesextension tube bar length: 8 inchesStraight Pressure tube length: 153mmAngled pressure tube length: 155mmCompression Tester Package List:1x spring buckle gauge (max 300psi or 20bar)5x brass adapters M10, M12, M14, M16, M181x straight connector1x angled connector1x extension tube bar (8 inches)1x extension rubber hose (16 inches)1x hose with tension bar1x User ManualHow to Use:Start the engine and run to the normal working temperature. After the engine stops running, unload all spark plugsMake the throttle fully open and press the connection of the pressure gauge on the spark cold holeMotors drive the engine to rotate at 100-150R/MIN speeds for 3-5 seconds. At this point, the pointer on the instrument will gradually rise, but will stop at a certain value. At this time, the indicator value is the compression pressure of the cylinder.Press the button to zero the pointer.According to the above steps, the measurement is repeated 2 to 3 times to improve the measurement accuracy.
