When you changed the diaphragm, did you test the poppet valve housing for vacuum leaks? I posted my work in the last two pages of this thread:

http://www.peachparts.com/shopforum/diesel-discussion/313588-injection-pump-maintenance.html

My poppet valve shaft was ground down by one of the bearings and that is where most of my vacuum leak is. I also have pinholes in the diaphragm as well and I'm not looking forward to setting that cotter pin back in but I'll get it done.

As for your shutoff, your start/stop armature to your pre-glow/pull starter knob may now be out of adjustment if the car won't shut off when you push it back in.

Phil Forrest

__________________
1972 220D "Trudy," named by a friend.

"The 220D sounds good... I suspect it is the only car that you need a calendar for, rather than a stopwatch, when doing acceleration tests."
Tom Abrahamsson