Brand new OM 617

[willbrewale]

Hi I'm new and I just bought a new/old stock Mercedes OM 617 to replace the Perkins 4-154 in my boat. The motor was Marinized by Nanni and I would guess built in late 80s or early 90s. (Guess!) I realize this may be a little outside the norm for this forum but I don't know where else to get info on this motor. The motor is obviously been sitting in a warehouse for many years. From what I can tell it has never been run. brand new.
I am concerned about damaging the motor when I start it the first time if I don't properly prep it and I've gotten a lot of "advice" regarding what to do to prevent dry start damage etc.
Anyone who has completely rebuilt one of these should have an idea of what I need to do.
Thanks
John

Gulfstar 50 Ketch
WV TDI 2012