"per sequential output could be determined by careful milli volt testing as well for example. Or perhaps by degree wheel on the crank"

Can you give a quick description on how this works? I thought the 617 IP's are entirely mechanical? How is this milli volt signal obtained?

"In my opinion an additional set of injector lines bent to allow testing can be worthwhile if you are doing quite a few older mercedes diesels over time."

Once you have a set of hard lines bent, swapping it out should not take more than 10 to 15 minutes. Then you can connect up a set of injectors and see if all cyylinders are pumping, you can see the spray patterns of the injectors, you can swap injectors around. you can see if any of the injectors drip. You won't be able to measure anything but just being able to see the items mentioned is incredibly useful IMO.

Anybody have an extra set of hardlines they are willing to part with? I'd post photos when I'm done.

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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked