So, a compression test is a “dynamic test” (engine moving) See the results, interpretations and tips for different leak paths and engine conditions. On the other hand, a cylinder leak down test is a “static test” (engine at rest)
HOW TO PERFORM A CYLINDER LEAK DOWN TEST, TIPS, AND UNDERSTANDING THE RESULTS - AskTheCarExperts
What is a leak down test
A leak down test is a method of using compressed air and a specialized gauge set that reads differential pressure to evaluate the condition of an engine’s cylinders, pistons and rings, and valves and seats without disassembling the engine.
Find out how to troubleshoot cylinder leakage problems and identify the source of the leak. If you’ve ever wondered what an engine cylinder leak down test is or how to perform one of these tests, don’t worry We’ve got you covered with lake speed jr. Learn how it works, what the results mean, and how to diagnose engine health like a pro.
