Pulled all 8 apart last night, mostly followed the method here,
Stock Injector Rebuild - Ford Truck Enthusiasts Forums
Found that easier than dropping stuff inside with tweezers lol.
Again, the Orings, check balls, and springs came from,
truckrental on eBay
Everything laid out.
Built them up by stacking everything backwards on the body.
When they say you can't put them together wrong, this is what they mean, there's two holes all the way through for pins. One short set of pins goes closest to the nozzle, the two longer pins go further back, the pins are offset, so if you put any component in wrong, it won't line up. You could flip this one upside down though, so make sure it's as shown, the cover goes on "top".
Ready to drop the body over this, I just kind of balanced everything on my finger and lower the body, then flipped it.
Plunger and spring goes in next,
This was the only part where I had difficulty, intensifier piston O-ring.
The groove it fits in is deeper than it appears. If you can squish the front part into it as you're pushing it down, the rest will follow, you can work it around.
Pushing it past and trying to pull it up never worked for me. Had to get the front edge in first.
Looks like this done, then pop the intensifier piston in,
At this point you're ready to put the upper half back on. The pins in the upper need to line up with the pins in the lower. There's an O-ring on the upper to replace, comes in the kit I got from Truck_rental on Ebay.
Lifting up on the nozzle a bit while rotating the upper until a thread caught worked well for me.
Used special tool to torque upper down
My truck ran, and started fine when I started this, 14 degrees, not plugged in, two holes in the cylinder head, one glow plug cycle and it would light off no problem... So I checked the clearances, but I wasn't really worried about shimming anything and saw little need to do so
I never had worse than a tight .004 clearance.
And that's it, took me about 50 minutes to do all 8, surprisingly easy project for a Friday night in the shop.
Mine are going to sit on the shelf for the next 8 months while I finish the rest of my truck lol, but hopefully the pics and information help someone. Don't be discouraged, it's a totally doable project for a gu with mechanical sense.