need some help Nissan v6 exhaust stud

Aforbes704

Aforbes704

Well-Known Member
Joined
Sep 6, 2008
Location
Kannapolis
While I was trying to remove a broken exhaust stud I got a little impatient and broke the extractor off in the stud. Anyone one have any ideas on removing the stud now?
 
first, try using a center punch to shatter the remains of the extractor(it's very hard and brittle), if this doesn't work, remove the manifold, center drill with a smaller size, use another extractor from the backside if possible, sometimes heating it up will un-seize the threads, if not, then slowly work up in size to remove everything but the threads, then clean up the threads with a tap, if it still doesn't work, drill to size and use a long bolt from the back side of the flange-WARNING-the broken extractor is harder than any drill bit you own and will trash it
 
flatblackzj said:
first, try using a center punch to shatter the remains of the extractor(it's very hard and brittle), if this doesn't work, remove the manifold, center drill with a smaller size, use another extractor from the backside if possible, sometimes heating it up will un-seize the threads, if not, then slowly work up in size to remove everything but the threads, then clean up the threads with a tap, if it still doesn't work, drill to size and use a long bolt from the back side of the flange-WARNING-the broken extractor is harder than any drill bit you own and will trash it
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Thanks I will try the center punch today and see if I can shatter it. The stud is broken off in the head not on a manifold trying not to remove it unless I have to.
 
<hush hush -- trade secret>apply kimbell midwast "torq cb"($10-15 per can.. you will never use PB Blaster or WD40 again.. its that good).. let soak 5-10 min.. take a washer/nut of appropriate diameter, hold it on the stud, apply welder, apply wrench while still hot.</trade secret>
 
a_kelitey said:
<hush hush -- trade secret>apply kimbell midwast "torq cb"($10-15 per can.. you will never use PB Blaster or WD40 again.. its that good).. let soak 5-10 min.. take a washer/nut of appropriate diameter, hold it on the stud, apply welder, apply wrench while still hot.</trade secret>
Click to expand...
Where do buy it?
 
Blkvoodoo said:
Kimball Midwest

https://www.kimballmidwest.com/Catalog/CatalogIndex.aspx?dn=80544c
Click to expand...
That's the stuff.

Note: Torq CB II will not be available for shipment into the State of California after 12/31/10.
Of course if it is any good it will not be available in california.. everything causes cancer there lol.

Carquest in Columbus, NC carries it, but their price tag is ~$14 /can.. but its worth it. I use about a can or two a month and I work on some old/rusty stuff.
 
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