Joining in with everyone else -- great pictures. Based on my experience, paying attention to the lapping process is critical to prevent leaks. A table vise and a good torque wrench is a must. I got a manual pop-tester from Mercedes Source and it works pretty good. Two sets of injectors, and they all popped between 2050 - 2100 psi. Dis-assembly did not seem to affect pop pressure as long as the injector parts are not mixed.

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Larry in Mobile, AL
'83 300SD "Goldfinger" 145K Mi W126 E-617.95 T-722.3 15" Bundts