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Exhaust Manifold stud

Billccm

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Let me first start by saying I do not have a acetylene torch, or access to one. Can't weld, either.

I'm trying to figure out a plan for my exhaust manifold gasket job. I have one sleeve nut that was a pain to get off, and it was due to cross threading (previous owner, or last wrench to work on that area of the car).

I took a 3/8 24 die to try to save the threads, but can only get it about 5 turns on the stud before it stops. Trying not to snap off the stud.

Since I can't get two nuts on the damaged thread stud to remove, I'm not sure what else I can do.

So, if I'm out of tricks, I will complete the job one one side, button up the damaged side the best I can, and let an exhaust shop tackle the issue.

Thanks for any help, Bill
 
Your trying to get a damaged stud out right?

Visegrips?

You can always cut it off, drill, add tap.

There are stud extractor tools available that might work.
 
Look for what's stopping your die. Might take a file to the spot to let your die go farther. Use oil or WD-40 when cutting threads. Keep your die cleaned out. That stud has gone through a lot of heat cycles and it has a lot of temper in the outer threads. Take your time.

I like to use brass nuts to replace the original ones.
 
If you do decide to try and take it out use some penatrating oil like S'ok...
 
I have to go with kryslerkid on this one. TAKE YOUR TIME. Use some oil, go back and forth 10-20 times if needed. I agree to look for what's stopping the die and maybe taking a tiny ignition points file to that spot. I never had any luck with vise grips and if you strip one you have to pull the head off. If worse comes to worse, tow it to a GOOD custom muffler shop that will treat it right....just my 2 cents
 
I chased the stud with lots of Liquid Wrench and a 3/8-24 really old Craftsman die. The threads actually look really good except near the middle of the stud. Maybe one turn that looks a little weak.

Fellow Mopar guys stopped by yesterday and said keep as is as the sleeve nut tightens. Thanks for all of the advice.
 
I chased the stud with lots of Liquid Wrench and a 3/8-24 really old Craftsman die. The threads actually look really good except near the middle of the stud. Maybe one turn that looks a little weak.

Fellow Mopar guys stopped by yesterday and said keep as is as the sleeve nut tightens. Thanks for all of the advice.

Just a fyi- I've run into the issue of exhaust studs being "sorta stripped" near the middle. It's likely where the stock manifold ended & where the nut was always tightened to before. I have one stud like that on my motor now & just use a thick lock-washer on that stud so the nut is moved out just a little and tightens on threads that are still good.
 
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