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.
The good news is that my hose/plug adaptor work great with the leakdown tester. The bad news is that a compression tester needs a one-way valve at the plug adaptor. Typically, it's a schrader valve. I figured I'd just braze a slug of brass into the plug adaptor and thread it for the schrader core. No dice.