OM621 White Smoke

[bhammontree]

Hello

I have a 1967 200D with the OM621 motor and 175K miles that is having an issue with white smoke. I get a lot of white smoke when first started, but idle smoke seems to get better after it warms up. Even after warm up it will kick out a puff of white if I downshift or let off the accelerator while the motor is loaded. I have recently replaced the injector nozzles to see if that would help but it doesn't seem to have made any change. I did buy a pop tester and have all 4 firing at around 1650-1700 PSI. I have been battling leaks at the injectors for a few weeks but finally have all of the leaks stopped.

Any ideas on what to try to cut the white smoke would be greatly appreciated.

Thanks