Hey dude! i have not posted here for a while because i am very busy and i work a lot on my W126's 420SEL and the 560SEL.
But here is your answer for the intake manifold of the OM617
http://www.youtube.com/user/MBdieselFREAK
this is a Video of my 1982 300SD the intake Manifold is from a W115 1975 300D N/A
I apologize to all the fellow members of this forum for not updating on all my project but ill post pics soon of all my mods on the 560SEL im almost done! and i got plenty of pictures!
http://s356.photobucket.com/albums/oo3/MBdieselFreak/
these are pics from a little while ago but you can still check them out
if you got more questions ill take the time to answer them.