Tried removing the turbo from my 2006 k12 1.5dci micra and when removing the manifold to turbo studs managed to snap the nut off the stud on 2/3 bolts. Is there any way to remove the studs from the manifold without removing the manifold or the engine. Theres zero clearance to drill/tap them out and a welding torch wont get down in the area. To remove the manifold the engine would have to come out as again there is no clearance to remove certain bolts.