Thanks man. This is essentialy where I’m at. Fuel economy, oil consumption, cold starts, power, all reasonable. I imagine I’ll pick up the harbor freight tester this weekend and enter via the glowplug holes.

Point of operation, while I have you: I’d prefer to leave the hardlines connected if possible. From what I’ve read, after removing all glowplugs, the move is to wire the stop leaver to prevent the engine from starting? Or is it actually better to disconnect them at the injectors?

Re: hot or cold testing (apologies for inciting a riot) did you find one more conclusive in determining imbalance? Figured I’d test on a hot engine, running it one last time after removing the glowplug wires (but obviously before removing the glowplugs).

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1981 240D 4sp manual. Ivory White.