 Yet Another Way, to Remove Broken Exhaust Studs from Aluminum Heads |
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| 76-914 |
 Jan 23 2023, 12:11 PM
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#1
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Repeat Offender & Resident Subaru Antagonist  Group: Members Posts: 13,813 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California 
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| Root_Werks |
Jan 23 2023, 01:51 PM
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#2
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Village Idiot Group: Members Posts: 8,834 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest
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Done both, welded material on and rotated out. Oil and ViceGrips, mostly works.
Had good luck with reverse drill bits. Start as small as possible and keep upsizing. Usually the friction heat and constant reverse torque turn out the broken stud. |
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| 76-914 |
Jan 23 2023, 04:32 PM
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#3
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,813 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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QUOTE(Root_Werks @ Jan 23 2023, 11:51 AM)  Done both, welded material on and rotated out. Oil and ViceGrips, mostly works. Had good luck with reverse drill bits. Start as small as possible and keep upsizing. Usually the friction heat and constant reverse torque turn out the broken stud. Yes, me too. But I'd never tried to weld a broken stud that was recessed in the head. BTW, a 4" pipe wrench works much better than vice grips as it continually tightens its grip with additional force. IOW, it won't slip like vice grips. |
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| rgalla9146 |
Jan 23 2023, 08:55 PM
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#4
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Advanced Member Group: Members Posts: 4,832 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None
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QUOTE(76-914 @ Jan 23 2023, 05:32 PM) QUOTE(Root_Werks @ Jan 23 2023, 11:51 AM) Done both, welded material on and rotated out. Oil and ViceGrips, mostly works. Had good luck with reverse drill bits. Start as small as possible and keep upsizing. Usually the friction heat and constant reverse torque turn out the broken stud. Yes, me too. But I'd never tried to weld a broken stud that was recessed in the head. BTW, a 4" pipe wrench works much better than vice grips as it continually tightens its grip with additional force. IOW, it won't slip like vice grips. (IMG:style_emoticons/default/agree.gif) A 4" pipe wrench works very well. Much like a pipe wrench a vise grip works far better when positioned perpendicular to the stud and rotated with the upper jaw dragging the stud rather than pushing......the principle that makes a pipe wrench work so well. I've also had luck welding onto a surface broken stud.....~60% success |
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Posts in this topic
76-914 Yet Another Way Jan 23 2023, 12:11 PM
infraredcalvin Sheesh, he already had the welder out…
Weld a n... Jan 24 2023, 01:02 AM ClayPerrine If there is any of the stud sticking out, I use a ... Jan 24 2023, 06:26 AM r_towle would you mind posting the pic in the first post?
... Jan 24 2023, 03:36 PM
76-914
would you mind posting the pic in the first post?... Jan 24 2023, 06:58 PM r_towle
would you mind posting the pic in the first post... Jan 24 2023, 07:41 PM rick 918-S I weld through a washer. This protects the aluminu... Jan 24 2023, 07:29 PM rick 918-S I weld through a washer. This protects the aluminu... Jan 24 2023, 09:27 PM BillC Aluminum has a larger coefficient of thermal expan... Jan 25 2023, 01:05 PM |
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