Little more flashlight work and there is a vertical port on top of the compressor. The "S" port I described earlier is horizontal.

So, I hooked her all up and it's very slow going! Idled for 30 minutes and the first can has not been completely taken in yet. I do see some bubbles in the glass. No change in cooling performance.

1991 Mitsubishi Pajero XP TD LWB family hauler.