Help my first time doing leak down testing, I think there is a problem with a borrowed gauge.
When I set the percent gauge to zero the pressure gauge showed 32 lbs. If I tried to increase the input pressure, the % gauge would swing clockwise out of the setting range.
Doing the test using the 32 lbs the leak down % on the #1 cylinder was 5%.
Now sure if things are ok, Compressor putting out 100#.
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