Smoking from tailpipe help pl

I have a 87 turbo diesel . the turbo quit working first so checked it couldnt find much at first. Now it is smoking so i took it sorta apart. I couldnt get the turbo out but did see a lot of oil in the turbo intake. Where is it comming from? I found that the waste gate vacume line broke off. now it seems the turbo is getting oil soaked and i still cant get the thing off. Any help or iceas at this time would be greatly appreciated