i thought i had a cracked manifold stud not long ago, turned out it was a simple fix me and another guy did at work in like 1/2 hour, it was just the turbo gasket was blown, so we just unbolted the turbo form the manifold slide it off slowly enough to becareful as to not damage the oil and waterline, then took the blown gakset out and replaced it with the new one, we didnt even have to remove the line off the turbo only the 4 bolts that attach it to the manifold, was quite easy.