Finished rebuilding D400 #2... All went fine there - even rebuilt the poppet (little more info on that thread). Next on my D series builds will be the 350.
Ordered a reproduction purge cover from VDH for my 109 - hoping that might give a few more percentage points of performance (it already has the euro-poppet, new diaphragm, new exhaust diverter, etc. so it will be about as rebuilt as you can get, short of the S-Wing poppet).
Tridacna sent me a message about an older Air2 that he had, and we worked out a deal... which got me to thinking about my other Air2s - so I cracked open the equipment box, and dug out my old Air2 Gen 1 (from high school / college), and an Air2 Gen 3 (which was on a BC that I outgrew - sucks getting older and bigger) to get some pics... I also have a Air2 Gen 4 on my son's rig, and a Air2 Gen 5 on my most recent BC... So I will probably be starting another thread to go into detail on those, but figured i would start with a little info/parts seek here, along with a basic version pic comparison (minus Gen 2, which is more squared off than Gen 3).
The Gen 1 is missing the cap that goes on the exhaust valve - does anybody have a parts donor / stash of these ? Along those lines, there are various manuals etc. for the Gen 2 and later, but the only thing I can find for the Gen 1 is the parts diagram - does anybody have one they can forward (and I will repost for all to use)?
Anyway, here are the two units that I will be looking into rebuilding (along with the one that Tridacna is sending out).
Gen 1 ( 1979 - 1983 )
Gen 3
( 1990 - 1999 )
Here are my others for reference for those looking at the differences - These have already been serviced or are fresh enough to not require service at this point.
Gen 4
( 2000 - 2005 )
Gen 4
(note the cover pin, which differentiates from the Gen 3)
Gen 5 (aka restyled Air4 - 2005 and on)