I just made a preassure lubricator for my oil system. it is a chamber that can be filled with oil ( approx 2-3 quarts ), air preassure is charged into the chamber, from the top accompanied by an air preassure gauge, on the bottom, there is a ball valve, and after the ball valve, is a preassure gauge, then a 3/8" hose comes off that, which then, a 3/8" fitting can screw into the oil preassure feed for my gauges/ turbo. preassurize the oil system w/ engine off and no hassle, check for leaks. I'll get a pic 2morrow.