Below is a pic of my 1980 TD (non-turbo)injection pump. I need some answers as to what is on top of it. None of it appears in my MB manuals. I circled the important bits. I know the thing that has two circles on it is my "altitude adj" thingie. My question(s) for that are; Is there supposed to be a hose attached to the male connector at the bottom? And can I adj the screw at the top to get a little more power out of the old girl? It all looks very similar to the ALDA on my turbo, which I just got done playing with (very big improvement!!!!!!). My second question is if anyone has any info on the vacume set up in the second pic that's circled. This is not in any of my manuals and has not been on any 617 engine that I've seen or worked on. My wagon did get a new long block from the dealershipin 1992 (before we met) and may have some upgraded set up. (They didn't stamp a # on the engine when they put it in, how's that for wierd!? It says 617 and the rest of the plate is just blank.) Just curious as to what everbody-else's looked like.
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