This question is not Benz related specifically, but I know a lot of you guys are Diesel fans in general so I hope you can help.

Is there a quick and dirty way to adjust the boost compensation aneroid on a Bosch VE pump? I can adjust my boost pressure without a problem, but I would like to know a way to change the fuel delivery too. I have taken the cover off of the aneroid only to find a rubber diaphragm attached to a spring loaded rod which seems to go into the pump. Boost pressure would seem to act on this and push the rod downward--allowing the throttling mechanism to travel more.

There is a small screw and locknut on top of the cover but it seems to have no purpose except to limit how far the rod travels upward--like a minimum setting.

Just from the looks of it, it would seem to me that I would need to source a new rod and spring assembly but I'm not sure. Anyone have direct experience with these pumps?

-Joe