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There are a couple of guys that have written a great book on the 6.2 an 6.5 engine. I can't remember their name. Contact Barrman, he knows.
This may be it.
http://www.thedieselpage.com/books.htm
Start at the top of the CUCV Forum page, read the first few posts, the Wiki and stickeys
and then you can find the manuals here:
Steel Soldiers :: Military Vehicles Supersite
You do have to do some work.