I am trying to install a new exhaust on my 88 accord, got all bolts out of the flange from the exhaust to the manifold, (well, broke 2, got 1 out) there is still 1 bolt in that the nut just keeps turning on the base of the bolt, if your under the car looking up, its the one on the left side. I can get a dremel tool in there, but its not powerful enough to cut the bolt, ive tried using a flatbar to put pressure down on the nut while I try to loosen it, but this didnt work either. If any of you have any suggestions please let me know it would be greatly appreciated.
Thanks!
Rob

 

is it a stud or a bolt? see if you can get a wrench or vise grips on the other side to keep it from spinning. If that doesn't work, get a oxy-acetylene torch and cut them out, and use new bolts to re-install it.