300d injectors

[maceo1973]

Hi.

I own a high mileage '77 300D which was giving me cold starting problems. The engine had to be cranked over and over until it fired. I got the injectors rebuilt and put them in with new heat shields. Now the car starts from cold with a couple of turns of the engine, however, I get huge clouds of white smoke until the vehicle is driven. Any ideas why the car would start better, but smoke a lot more than before I changed the injectors?

Thanks.