I have been trying to eliminate possible causes of white/gray smoke from my 83 240d. I set ip timing, valve adjustment, corrected chain elongation, reman injectors, all fuel hoses replaced, filters, purge, checked fuel hard lines to tank. The car has good compression and the smoke smells like diesel. There are no visable leaks in the system. It does have a loosened prechamber collar nut, but smoke did not go away when I cracked the line on that cylinder. I am leaning towards taking my car to a shop, but wonder if I am missing something which could be causing the smoke. I would like to limit shop time to my suspension. Is there anything that I am missing?
The car runs smooth and quiet, starts easily- temp in 30's F. Smoke begins to appear after glow plug cycle and volume of smoke builds after about one minute.