Been missing since 2004, installed some used lines as new are NLA. Replaced orings and flushed all parts of the system with denatured alcohol. I cleaned oil out of the compressor so the system can be refilled with the proper amount. Since it's near impossible to service the suction line with the engine in I wanted to get the system pressure checked before I installed the engine, I put the AC compressor on and pulled a vacuum. Looks like it held overnight so I think system integrity is good! Gotta finish putting the top of the engine back together but at least I know the AC system ought to hold pressure!
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