[libretto]

Help!!!! Ok guys here is the deal I had a bolt head snap off in the frame for my CR500. It’s the bolt that holds the exhaust on to the frame down tube (see pictures). Here is the problem I drilled the bolt out and tried to use an easy out to get it out. Well the easy out broke off. Now I can’t drill it out anyone have any ideas how to solve this problem



Thanks in advance

I left them full sized so you could really see what i was talking about

http://i159.photobucket.com/albums/t...o/DSC_0712.jpg
http://i159.photobucket.com/albums/t...o/DSC_0711.jpg
http://i159.photobucket.com/albums/t...o/DSC_0708.jpg

[Bryce Auten]

tack weld a bolt to it and use a nut to fasten it?

[THE JESTER]

Seen it happen before and done it myself.First step file it all down so that it is smooth then center punch a small hole in the middle to stop the drill bit skidding all over the place , then drill the whole lot out starting with a very small drill bit and go up in size as you go.While you are drilling apply lots of oil to cool and lube the drill bits or you will burn them out vey fast or worse yet snap them as well , once you got it all out re-tap a new thread you may need to go up a size of bolt at which point enlarge the hole on the mounting flange on the pipe.Rember take your time and don't rush it .Hope this helps you out it's worked for me a few times.

[robbied]

Originally Posted by THE JESTER

Seen it happen before and done it myself.First step file it all down so that it is smooth then center punch a small hole in the middle to stop the drill bit skidding all over the place , then drill the whole lot out starting with a very small drill bit and go up in size as you go.While you are drilling apply lots of oil to cool and lube the drill bits or you will burn them out vey fast or worse yet snap them as well , once you got it all out re-tap a new thread you may need to go up a size of bolt at which point enlarge the hole on the mounting flange on the pipe.Rember take your time and don't rush it .Hope this helps you out it's worked for me a few times.

Used this method too and it works

[ucfmotorcycle1]

There are also revers drill bits that turn counterclockwise. These are good for broken bolts as they drill out the bolts and turn them out at the same time.