The large nut on top of the IP is supposed to turn CW while the nut on the alda turns ccw - lefty loosey - off of the IP. Which brings me back to my original question. I don't think the alda will make the turn around that pastic white round thing seen in the picture I attached. Has anyone encountered this? Will it make the turn? How do you get that thing off? And what is that thing anyway? Oh, and what do you use to block the boost line that is now dangling from the shutoff valve?

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1983 MB 300SD Turbo Diesel