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Success… I think. a) Fixed leaking flange on compressor; b) Applied vacuum (-26 psi) for 50 mins; c) Shut-off vacuum, -26 psi held overnight but...
Mendel Leisk Got it... thanks for the tip!
"Yes, if you open the system to to replace a bad O ring (hope there isn't any corrosion in the fittings) then you do HAVE to evacuate to system...
First of all, I'd like to thank all of the contributors to this forum. Without their advice, I wouldn't still own my (recently acquired) 2nd Gen...