With a simple diesel engine compression test, it is possible to spot compression problems before they get worse. Here’s information on these tests and how to decide if it is time to perform one.

Engine Compression Atmospheric pressure at sea level is approximately 14.7 psi. A 9:1 compression ratio cylinder is compressing the air and fuel mixture to about 132 psi at sea level (9x14.7=132.3).

We walk you through a compression test, a great way to determine the condition of your valves and piston rings.

A crank compression test can tell you a lot about an engine and we will be going over the numbers. - Super Chevy Magazine ...

What is compression ignition? Compression ignition basically is the term that is used for describing the manner in which diesel engines function.

Some engines use a spark to ignite their fuel, and others rely on compression. What does all of that mean? And how do the two kinds of engines differ?

The much higher compression ratios of diesel engines (typically 16:1 to 20:1, compared to 9:1 to 12:1 in most gasoline engines) also allow them to extract more energy from each unit of fuel.

Is your engine underperforming? Our expert shares how a diesel engine compression test could provide the diagnosis.