Gilly, that explanation really helps a lot. I'm interested to know if I can get those still, but if not I'll just put a little silicone sealer around the base so I at least know that the air will be passing through the screens like it's supposed to.
JetForeman: I'm using an HP720 on the medium resolution setting. The pictures are around 500K each. I use a combination of the software that came with the camera and MS Photo editor ito reduce them. I'm surprised too - they come out pretty good.
My '94 E320 is done. I'll update the other thread "Code 6 idle problem" to keep it all in one place.
Experience is something you don't get until just after you need it.