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- Newsgroups: rec.autos.tech
- Path: sparky!uunet!europa.asd.contel.com!darwin.sura.net!mlb.semi.harris.com!billy.mlb.semi.harris.com!jws
- From: jws@billy.mlb.semi.harris.com (James W. Swonger)
- Subject: Re: Exhaust Manifold Stud Removal
- References: <1992Aug27.131102.29223@mnemosyne.cs.du.edu> <1992Aug27.190034.24489@ccu.umanitoba.ca>
- Date: Thu, 27 Aug 1992 20:37:06 GMT
- Nntp-Posting-Host: billy.mlb.semi.harris.com
- Organization: Harris Semiconductor, Melbourne FL
- Sender: news@mlb.semi.harris.com
- Message-ID: <1992Aug27.203706.898@mlb.semi.harris.com>
- Lines: 33
-
- In article <1992Aug27.190034.24489@ccu.umanitoba.ca> larrigan@eeserv.ee.umanitoba.ca (John Larrigan) writes:
- >tzing@nyx.cs.du.edu (Tom Zing) writes:
- >
- >
- >>I have a broken exhaust manifold stud frozen in my aluminium head. The
- >>stud piece is about an inch long. I have tryed liquid wrench and some
- >>vibration to try and loosen it. Does any one know how to remove it ?
- >>Thanks
- >>Tom Z
- >
- >There are special stud removing tools. Sears Craftsman has one and I'm
- >sure Snap-on does also. I goes on a 1/2" drive ratchet or breaker bar and
- >uses a seraited cam to grip the stud.
- >
- I tried one of these and was disappointed. In aluminum however you may have
- better luck. Or not, if the stud snapped on account of being into the water
- jacket and corroded so badly that it -can't- fit back out the hole it came
- in.
-
- A repetitive back-and-forth axial torque (heavy vise grips), heat and some
- more Liquid Wrench (or better such as Kroil) may eventually free it. If it's
- snapped off flush that's another matter entirely. You'll be wanting it drilled
- then, and not by hand - too much chance of the bit wandering off to softer
- pastures.If you go over you may need to oversize and then tap and heli-coil
- the hole. Not great if it's into the water jacket either. If you are in the
- mood to remove the head it might be easier in the end and let you see what
- the other end of the stud might be up to.
-
- --
- ##########################################################################
- #Irresponsible rantings of the author alone. Any resemblance to persons #
- #living or dead then yer bummin. May cause drowsiness. Alcohol may inten-#
- #sify this effect. Pay no attention to the man behind the curtain. Billy!#
-