Any engine, whether gasoline or diesel, requires compression to operate. The process of compression confines and presses a mixture of air and fuel into a small volume within the area of the engine’s cylinder. This process presses together all the molecules under very high pressure. Since the gasoline engine has a spark plug, only moderate compression is enough, requiring about 140-160 pounds per square inch (PSI).
An engine compression test is the most practical way to learn about the mechanical condition of your engine. Doing a engine compression test will help you locate potential internal problems affecting engine performance. Running rough […]