Most mechanics cut their teeth on the 12-valve 5.9L (6BT). The 8.3 is a different animal.
Do not use a mechanical manual on a CELECT engine—the injection timing procedure is completely different. cummins 6cta 8.3 service manual pdf
A: Unlikely. Cummins protects its intellectual property. They will point you to QuickServe. However, if your engine is older (pre-1998), some dealers may provide a printed copy for a fee. Most mechanics cut their teeth on the 12-valve 5