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LE 613 air issues

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You have a line leak between the compressor and the dryer. The reason you can't find it is because it spontaneously leaks out of the small trapped column and is gone before your ear is on it. When running you can't hear the leak well. The leak is small enough to allow a little bit of air to remain and pressurize in the line, enough to create 30 PSI at a rev, but that's it. Soap the line while it's running at high rev and before the line gets really hot. Since you have a check valve at the air dryer there is not going to be backflow from the system to sustain the leak with engine off, so it may only be found running. Good Luck!


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