Howdy Folks,
Have a line on a 6.354 naturally aspirated engine already installed in an '82 Chevy truck. It's been parked for over a decade with the radiator removed when it was parked. I use to ride in it as a kid, I'm 43 now.
I've worked on Chevy and Ford and VW stuff since I was a kid so I know my way around a motor. This old pick with the Diesel engine is a new beast for me and have never worked on one or it ever.

My newbie questions:
Running a stand alone diesel fuel supply to test fire the motor, what's the best way to prime it? Loosen the injector threads and watch for pressure?

The injector pump, how expensive is it to rebuild?

On these engines, are the injector pumps so simple they typically don't need attention? If yes, what are some normal issues with the pumps?

Is there a good source for rebuild starters? How much $?

Source for clutch kits? How much$?

Is there a magical mileage where these motors crap out?

Stupid question: these blocks can't be welded if cracked?

Thanks for your time. I appreciate any information I can get.

Will