I'm Rex, and I've been on this board for over a year or so reading and learning a ton, though I've never taken the time to introduce myself. I'm a Marine Osprey pilot by trade, currently stationed in Jacksonvilke, and I've got a '93 D250 5spd.
It's not running right now, but I plan to fix that after the new year!
The timing gear on the pump drive shaft spun (either the nut got loose, or the pump seized or both) and literally melted the woodruff key onto the shaft. I bought an industrial injection pump on my local Craigslist that turned out to be garbage ($600 wasted...), so I'm back at square one.
I'll post some pics in a bit
Rex