Sheared bolt
asprilla
Posts: 8,440
Had a mishap with my bars his morning; they shited slightly when I hit a pothole on the way to work. I stopped to adjust them and sheared one of the facing plate bolts in the stem.
First question; it's sheared flush with the stem so what are my options, if any, for getting it out?
Second question; can anyone recommend a good but cheap torque wrench?
Cheers!
First question; it's sheared flush with the stem so what are my options, if any, for getting it out?
Second question; can anyone recommend a good but cheap torque wrench?
Cheers!
Mud - Genesis Vapour CCX
Race - Fuji Norcom Straight
Sun - Cervelo R3
Winter / Commute - Dolan ADX
Race - Fuji Norcom Straight
Sun - Cervelo R3
Winter / Commute - Dolan ADX
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Comments
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Spark erosion, drill and tap, wind through if its not a blind hole.....
Spark erosion is the best way with steel in alloy, but probably costs more than a new stem.
Drilling a steel bolt out of alloy is a pain, the alloy is softer so the drill wants to go into the alloy not through the steel, however it is possible and I have drilled a snapped bottle cage bolt out of an allloy frame and then retapped it in the past, for that I actually used a dremel and a diamond tipped tile drill to gradually remove the bolt but it took about 2 hours for a little M5!
If its not a blind hole you can often spin it right through......
All told probably easier to buy a new stem I'm afraid.
SimonCurrently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.0 -
Broken screw extractor? One of them things with the left-handed thread.
You'd need to drill a really tiny pilot hole in the screw first, which might be tricky. Maybe with a left-handed drill bit too...Sometimes parts break. Sometimes you crash. Sometimes it’s your fault.0