Thanks Paulwho!
I ordered the copper sealing washers and o-rings. Special socket is on the way too. I have the MB service CD's but couldn't find the repair anywhere. I wish they had a search function. Do you know the torque spec in ft. lbs. (or inch lbs) for the pressure valve housings? Are there any seals of any type at the injector end of the fuel lines when I remove them? Bleeding after assembly? How about any tricks or tips? Anything else I should do while I have all this apart? ( I just had the intake manifold off a month ago to change glow plugs. ah, hindsight).
Thank you!