 Mystery Case Bolt |
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| didenpx |
 Feb 1 2026, 05:30 PM
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#1
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Member  Group: Members Posts: 117 Joined: 1-September 23 From: Usa Member No.: 27,556 Region Association: North East States 
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Can anyone help identify this bolt and its purpose? It’s on a GA case that was built up to a big bore engine fwiw. Is it an oil galley plug?
Paul  |
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| didenpx |
Feb 1 2026, 05:31 PM
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#2
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Member Group: Members Posts: 117 Joined: 1-September 23 From: Usa Member No.: 27,556 Region Association: North East States
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| 914sgofast2 |
Feb 1 2026, 07:00 PM
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#3
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Senior Member Group: Members Posts: 786 Joined: 10-May 13 From: El Dorado Hills, CA Member No.: 15,855 Region Association: None |
There is an oil pressure relief valve under that plug.
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| 930cabman |
Feb 1 2026, 07:03 PM
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#4
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Advanced Member Group: Members Posts: 4,474 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
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As I recall, a triple square drive will remove this, or a 3/8 male extension
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| didenpx |
Feb 1 2026, 07:47 PM
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#5
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Member Group: Members Posts: 117 Joined: 1-September 23 From: Usa Member No.: 27,556 Region Association: North East States
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QUOTE(930cabman @ Feb 1 2026, 08:03 PM)  As I recall, a triple square drive will remove this, or a 3/8 male extension Thanks Cabman. But is it stock or something someone added? And what’s its purpose? Paul |
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| mate914 |
Feb 2 2026, 05:47 AM
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#6
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Matt Group: Members Posts: 933 Joined: 27-February 09 From: Eagles mere, PA Member No.: 10,102 Region Association: North East States
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QUOTE(914sgofast2 @ Feb 1 2026, 08:00 PM) There is an oil pressure relief valve under that plug. not new. This guy told you what it is... |
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| didenpx |
Feb 2 2026, 06:03 AM
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#7
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Member Group: Members Posts: 117 Joined: 1-September 23 From: Usa Member No.: 27,556 Region Association: North East States
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QUOTE(914sgofast2 @ Feb 1 2026, 08:00 PM) There is an oil pressure relief valve under that plug. Thanks @914sgofast2! |
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