What the Libra zodiac sign is all about: Libra is the seventh of the 12 zodiac signs, which begins its cycle in early fall every year during Libra seasonâwhich falls around September 23-October 22.
How it works. This schematic shows the component parts of a typical leak-down tester. The gauge on the right is held at a standard pressure by adjusting the pressure regulator while the gauge on the left shows an example reading of 85-or 15% leakage.
Leak Down Test by Dennis Haynes. A number of people have asked What is a LEAK DOWN test? and Can I do it myself?. First, let me explain the concept. We already use a compression test to determine an engines condiditon. the problem with this test is that there are too many variables.