Nice job, great pictures, covers the whole process very nicely. The only thing I'd add is that once the injectors are back together, they should be tested for opening pressure and spray pattern. Bosch certified shop in my town charges about $15 per injector for this service, will adjust them if required so that opening pressures fall within a 5 bar range.

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Respectfully,
/s/
M. Dillon
'87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 380k miles
'73 Balboa 20 "Sanctification"
Charleston SC