Thanks Fisherman! I'm on my way to the garage to try it again. I did not disconnect the spring or vac line but I will. I am fuzzy on the valve but I will look for that. I did have it at WOT but never did see any fuel in the fitting. I've been collecting my bag of tricks for 20-25 years but none of them are Merecedes related. At least they helped me fix the broken studs that hold the power steering pump to the block. Ace Hardware sure has a great selection of hardened metric fasteners that helped me fix this better than factory original.