Well, I got it all together, it started up in 3 tries and subsequent starts are easily; but the engine is running so rough that it will not even hold an idle; also making a lot of noise; no smoke; no fuel leaks.


I replaced all of the return lines; the clear lines off the IP; the primer pump and the new overflow valve.


The car sat 7 months, but I think the fuel is OK, and looks clear in the filter.


For now, I am going back to the manual to see what tests I can do related to the lift pump that the primer pump is mounted.


Ay, caramba!

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1983 240D low miles 156000, and yes, MB still gives out badges