exhaust studs, broken exhaust stud Options

[rickllyell53]

Hi everyone,
I have a 1973 2.0 that has an exhaust leak. I removed the shroud under the exhaust and could feel the leak somewhere around where the exhaust pipe seats against the cylinder head. The locking nuts used to attach the exhaust pipes were tight and seated so I thought the problem might be the copper gaskets.

While trying to remove the exhaust to inspect, I broke one of the exhaust studs. The locking nut was a thread or so from the end of the stud and the stud broke off leaving a couple threads protruding from the nut. In other words the stud broke near the end of the stud.

To get the stud out, I tried double nutting, but, there wasn't adequate threads to install two nuts.

So the $6 question, has anyone had this problem and how did you remove the stud?

Also does the factory put lock-tite on these studs?
Thanks in advance for the help.
Rick

[nebreitling]

that sucks. i hate pulling the exhaust for just this reason -- i will ALWAYS go out of my way to avoid it. no matter what, i always seem to F-up one stud....


since it broke off very close to the head, double nutting will be impossible. not nearly enough room to weld. so, you are stuck drilling.

this isn't so bad, just be sure to go slow and straight in order not to mangle the head. i'd go with one fine hole about 1.5cm in, followed by a reverse-thread bit. this might be able to grab it at some point and pull it out -- hopefully thus preserving the threads.

if you mangle the threads, you can always tap for an oversized stud (i did this) or use a helicoil/timsert (i wish i'd have done this).

good luck, be sure to wear saftey glasses (ask me how i know)

n