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.
Connect a pressurized air supply hose (from your air compressor or air tank) to the regulator portion of the leak down tester . Open the compressed air regulator until the pressure gauge reads 100 psi. Screw test hose into the spark plug hole of the engine. You are now ready to pressurize the cylinder.