I'm borrowing a buddy's manifold gauge set for the next refill. Will see if that is an issue, the harbor freight version. Mine is doing exactly what yours did ps2cho, high reads crazy high.
vstech, the "leak checking under vacuum"... I thought after assembly, while the system is evacuated. It is one of the steps to put 29bar of vacuum on the system to make sure it holds.
The switching cans, I don't really have any other option... little 365g cans. What I think happened was the last can, I forgot to get atmosphere out of the feeder line, and that would've put air into the system when opening up the low side of the manifold to continue the feed.
I'm in upstate, Greenwood, SC. It is stupid hot this week but last week, was amazing.
81 and 84* for the highs. But.. today.... 99*
Weather History for Greenwood, SC | Weather Underground
Right now...working on the fuel injectors and fuel pump o-rings.
https://picasaweb.google.com/113269285636978370799/1992Mercedes300D25