soydriver matt:

you are correct on the service bell thingy. On most W123 from 77-83 that are the nono turbo US versions they are lubed with the engine oil from the crankcase. that oldschool bell shape deal is the ALDA if i'm not mistaken that sits on top of that injector pump. anyone know how to adjust this? of if i can use that mity vac to measure correct presure going into that ALDA