Just to close is loop out,
I got the time to work on the 300D again yesterday. I took the injector pump from 'smelly - the parts car' and went thru the injector timing issue one more time.
The intial result was white/bluish smoke but the car would run although very rough. I advanced the injector pump as far as I could by rotating it towards the engine. It started and runs very well. It appears this engine needs more advance to run.
Thanks for the help, now back to finising up on the 300SD.