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Re: [FOT] broken head stud

To: Bill Babcock <>
Subject: Re: [FOT] broken head stud
From: Michael Porter <>
Date: Tue, 28 Feb 2006 00:46:35 -0700
Bill Babcock wrote:

>Shame on your machinist for not figuring out how to do it. 

I would generally concur with that assessment, since this sort of thing 
is not rocket science.  The degree of difficulty only depends upon how 
much of the stud is left.  If it's broken off flush with the deck, then 
anyone with a milling machine can plunk the block on the table, center 
on the hole and use a center-cutting carbide (or TiN-coated) end mill 
and cut a hole in the stud and use a screw extractor, or use a 
left-handed drill to cut a hole in the stud center and use the drill 
drag to loosen it.  If broken off below the deck, then a simple drill 
guide can be made in little time.

This sounds like someone just didn't want to bother with it.  Take the 
block to a shop which does diesel engine repair--they're usually 
equipped to handle such eventualities.  As well, anyone who does EDM can 
probably eat out most of the stud to a point that only a threaded shell 
remains, easily extracted.


Michael D. Porter
Roswell, NM

Never let anyone drive you crazy when you know it's within walking distance....

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