[Top] [All Lists]

Re: broken bolt removal

To: "Zampa, Fred \(Macon State College\)" <>,
Subject: Re: broken bolt removal
From: "Phil Ethier" <>
Date: Wed, 20 Aug 2003 23:34:32 -0500
> I just broke off the bolt that holds the right side water outlet to the
> cylinder part of the block on my 34 austin seven. So, I now have a sunken
> stump of a bolt stuck in the not very thick web that it bolts into.  My
> first inclination is to drill and tap.  But, the current issue of the
> American Austin/bantam club news has a different method.
>         Supposedly you can heat the bolt stub with a fine cutting torch
> flame then blow it out with oxygen. To me , this sounds like a certain way
> to crack the block.    Has anyone ever tried this  ??   Did it work?????
> Would a plasma torch work better ????

Put away the torches.  First, flood the area with Kroil or PB Blaster.
Centerpunch the end of the bolt and start drilling it out with LEFT-hand
twist drills in a reversible drill motor.  Chances are that the bolt will
eventually tire of the vibration and torque and unscrew itself.

If that does not work, tap it for the next larger size.

Phil Ethier  West Side  Saint Paul  Minnesota  USA
1970 Lotus Europa 65/2597, 1992 Saturn SL2, 1986 Suburban, 1962 TR4 CT2846L

///  unsubscribe/change address requests to  or try
///  Archives at

<Prev in Thread] Current Thread [Next in Thread>