I just got my injector pop-tester and monark rebuild kit from Mercedes Source I have two sets of injectors, the one set is manufactured in India and where crap right out of the box, Brand new, rough idle, smoke and nailing, I yanked those right out and put the old ones back in. The other set are OEM bosch with a qazillion miles on them but they were working, a lot less nailing, less rough idle but a bit more smoke. which should I rebuild? I'm leaning towards the Bosch ones, I thinking the Mumbai paperweights might have something going on that a rebuild isn't going to fix.

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1993 MB 300D 245K died.

I would check both sets on the tester first, just to see what they're doing, then go from there

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1982 300D Turbodiesel, daily driver. Mods so far: Fram 8038 paper filter, 4 brake light mod, Gen II w126 (front) rotors/calipers, boost turned up to 12lbs, non-egr manifolds, water/methanol injection, 4-speed manual
1980 300SD Turbodiesel, project car, nearly ready to hit the street

1974 240D, New paint