Stud Removal
Thread Starter
Intermediate
Joined: Sep 2000
Posts: 39
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From: Gretna NE
Stud Removal
I have pulled out my exhaust manifolds for refinishing. What is the best way to remove the studs? I have been soaking with penetrating oil, next I have heated the snot out of them with a propane torch. I still can't get them to budge. The studs are rusty and in poor condition.
Any ideas from you wrench heads would be appreciated.
Thanks,
Derek
Any ideas from you wrench heads would be appreciated.
Thanks,
Derek
Race Director
Joined: Jan 2002
Posts: 15,340
Likes: 2,716
From: Close to DC
C2 of the Year Finalist - Modified 2020
Re: Stud Removal (ddawes)
I went through this many years ago. Cut the stud level with the flange, center punched it, drilled it out using progressively larger bits. Then retapped for next size up, (can't remember size) and used brass nuts. These nuts are longer than normal and should be available at quality parts stores. Another approach is, center punch the stud drill it according to directions for using an
"easy out". Some other forum member may have another approach. Hope this helps.
"easy out". Some other forum member may have another approach. Hope this helps.
Burning Brakes
Joined: Dec 2002
Posts: 912
Likes: 1
From: San Antonio TX
St. Jude Contributor '03 & '04
Re: Stud Removal (ddawes)
Propane ain't enough heat. If you can get hold of acetylene, that might help break it loose. If not, put a pipe wrench on em. Some will snap off. Then you can waste your money on easy outs, or take it straight to a machine shop which will dig them out with an end mill or EDM machine.
Been there, done that. What I can't get loose at the moment is one of the 4.5" bolts holding the differential to the front mounting bracket. Hardly anything on the car is rusted except that ^%$#@ bolt. Nothing is working. :banghead:
[Modified by gary6696, 2:14 AM 2/21/2003]
Been there, done that. What I can't get loose at the moment is one of the 4.5" bolts holding the differential to the front mounting bracket. Hardly anything on the car is rusted except that ^%$#@ bolt. Nothing is working. :banghead:
[Modified by gary6696, 2:14 AM 2/21/2003]
Team Owner
Joined: Apr 2002
Posts: 25,778
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From: Zionsville, PA NRA Life Member
St. Jude '03-'04-'05-'06-'07-'08-'09-'10
Re: Stud Removal (ddawes)
I have heated the snot out of them with a propane torch.
If I remember correctly, the stud size for exhaust mainfolds are 3/8-16 NC. The tap drill size for this is 5/16" ( .3125) If the studs break off, grind them flush, centerpunch and drill them out. If you start the tap in the existing threads it will clean the old threads out. ( It's not that hard, just take your time)
:seeya JRD77VET
