you only need to take the pipe off the turbo not actually the turbo off! to check check for play there should be a litte up and down play not much tho! there might be no play! but the seals could have gone giving you the smoke! my turbo on the fiesta was a modded t2.5 hybrid???? it had a saab 9000 houding on it or something it was the the turbo centre that built it!