Petrol Gas Engine Cylinder Compression Tester Kit 8pcs Precision Automotive Tool Pressure Gauge

The automotive compression tester works with most car models with gasoline engines. It comes with adapters and pipes in different size to fit different models. Widely used for checking compression on engine cylinder quickly and accurately. Petrol Gas Engine Cylinder Compression Tester Kit Precision Automotive Tool Pressure Gauge Specifications: Measurement Range: 21(MPa) Precision Level: Precision Connection Type: Threaded connection Nominal diameter: 70mm Ambient Temperature: Room temperature (℃) Usage: Gasoline car, motorcycle cylinder gauge   How to Use the Compression Tester? 1. Start the engine until the normal operating temperature is reached. 2. Loosen all spark plugs for one or two turns and drive the engine with the starter (but don't let the engine start) for 5-10 seconds, which will disperse the dust around the spark plug bottom and prevent it from falling into the cylinder 3, Remove all spark plugs carefully, visual inspection of the spark plug can find a lot of problems,