Cylinder Cut Out tests are one of the most common tests that are ran on Diesel Engines, but many people are unfamiliar with what the readings mean or how to do a Manual Cut Out test to really isolate each cylinder. This video goes into detail on how to test for weak cylinders, dead cylinders, and other engine problems. The video then discusses how to test the weak cylinder for compression and valve damage. Please leave questions in the comments section below. Did this video help you save time or money? If so, consider sending support on Paypal, for the username AdeptApe@yahoo.com and thank you very much for watching.