Date:         Sat, 18 Nov 1995 10:53:53 -0800 (PST)
Sender:       Vanagon Mailing List <vanagon@vanagon.com>
From:         David Schwarze <des@teleport.com>
Subject:      Re: Bolt Extraction - few successes

Dan Beatty writes:
> 
> 7.  If you do end up breaking the thing off.. Work carefully.. This is where
> very good cobalt/ti coated bits help (a lot). You're not going to get a
> second chance at this standard sized hole so be patience and work carefully.
> Center punch the broken part exactly in the center. If you are little off
> carefully work the punch part toward the center by angling the punch and
> hammer blows. Don't try and mark it with one decisive blow (not). Starting
> the drilling process using a, for the common 8mm bolt size, 1/8 inch drill.
> Try to get excactly centered. Next work up a 1/16 and keep/get this center.


I wanted to add one thing here.  If the broken off bolt is short enough
that you drill all the way through it (you should be able to feel the
resistance change while you are drilling) stop and squirt some of that
rust penetrant (Another plug for the MOPAR rust penetrant, available
only at your Dodge dealer, but worth the trip and the $6/can price)
through the hole so it can attack the threads from the *inside*.  Just
one more little thing to do that might make the difference between
getting the broken piece out or not.  Great summary Dan!

-David

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David Schwarze                     '73 VW Safare Custom Camper  (Da Boat)
San Diego  (Actually La Mesa)      '72 VW Westfalia Camper      (Da Project)
California, USA                    '73 Capri GT 2800            (Da Beast)
e-mail: des@teleport.com           '87 Mustang Lx 5.0           (14.17@99.34)
http://www.teleport.com/~des       '93 Weber WG-50              (Da Piano)
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