Date:         Sat, 30 Dec 2000 14:41:30 +0100
Reply-To:     Calle Fallberg <calle.fallberg@SWIPNET.SE>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Calle Fallberg <calle.fallberg@SWIPNET.SE>
Subject:      Re: Broken manifold bolt
Content-Type: text/plain; charset="iso-8859-1"

Drilling the bolt :-P
Allways awkward, youīre likely to slide a little bit  = new threads
OK, there is helicoil but.....
I'm not sure weather there is room for it or if itīs possible but I have saved some thread in stupid places ( what is a good place for a bolt to snap ? well maybe if it goes through so that youīre able to reach it from behind and remove it that way :) ) by welding a one size smaller nut onto the broken bolt !
You hold it close up to the bolt and weld in the hole in the nut .
Many times the heat from the welding helps to "loosen" the bolt and itīs fairly easy to remove it with a ratchet...
Worth trying if there is 
1 room enough
2 someone willing to weld 
The important thing is to take a smaller dimension nut so that you donīt weld it to the surrounding material but just the broken off bolt

Good luck 

Calle
-88 Vanagon
Mullhyttan, Sweden