 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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Repeat Offender & Resident Subaru Antagonist  Group: Members Posts: 13,494 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California 
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| BillC |
Jan 25 2023, 01:05 PM
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#2
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Senior Member Group: Members Posts: 536 Joined: 24-April 15 From: Silver Spring, MD Member No.: 18,667 Region Association: MidAtlantic Region
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Aluminum has a larger coefficient of thermal expansion than steel. This makes it much harder to remove steel bolts from aluminum heads when cold, because the aluminum shrinks more in the cold and "clamps down" on the steel bolts.
But, if you first run the engine for a few minutes or use a propane torch to warm up the head, it will make removing the bolts much easier. |
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Posts in this topic
76-914 Yet Another Way Jan 23 2023, 12:11 PM
Root_Werks Done both, welded material on and rotated out. Oi... Jan 23 2023, 01:51 PM
76-914
Done both, welded material on and rotated out. O... Jan 23 2023, 04:32 PM rgalla9146
Done both, welded material on and rotated out. ... Jan 23 2023, 08:55 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 |
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