This problem has me totally lost.

1984 300sd is letting out loads of white smoke upon acceleration; enough that cars behind me have to stay a good distance away.. I'm talking a fog.. not a puff. I understand white smoke can be:

1. Coolant
2. Unburnt fuel
3. Oil

Its rather difficult for me to judge which of the three it is. I do know it lingers around for some time.. enough that it can float toward the car in idle. It definitely without a doubt has a burning effect to the eyes, nose and throat.. so I want to rule out water/steam.

It's not something that goes away after the engine warms up. It does remain regardless of the temp.

I can't figure out what the problem could be? I retimed the injection pump (drip method)... did a valve adjustment several hundred miles ago.. did a cylinder soak.. compression is good and it cranks up fine.. I did however install new nozzles (Monark) but they haven't been pop tested.

Playing with the ALDA allows it to smoke less at the cost of power, or more power for a greater amount of smoke.

What in the world could be the problem? Boost?