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Sheared bolt in engine block

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  #1  
Old 09-21-2014, 02:40 PM
mvsawyer's Avatar
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Default Sheared bolt in engine block

First off, thanks to everyone for your help. I've used this site countless times for DIY projects including how to replace my thermostat, oil pan, water pump, and a myriad of other DIY repairs. THANK YOU!!

On to my problem. I was replacing my coolant flange and broke the head of a bolt in the engine block. I can't get a drill in there for an easy out so was hoping you might have an alternative to getting it out. The place I'm working with is between the back of the block between the engine and firewall. There's barely enough room to fit my fist there. There's a tiny bit of bolt sticking out but I used vice grips and it wont get a hold on it. I'm thinking I may have to remove the engine, or hoist it up far enough to be able to drill it out. Thoughts?

Michael

1997 A4 1.8T B5 AEB Engine
 
  #2  
Old 09-22-2014, 01:56 PM
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I tried JB welding a nut to whats sticking out of the block. Wish me luck...
 
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Old 09-22-2014, 05:17 PM
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I had the exact same thing happen to me a number of years ago. I fixed it, after a few days of frustration, by taking a small cutting wheel with a Dremel tool and cutting a small slot in the bolt, then I used a small stubby screw driver and it came right out no problem. Once the head snaps off, there is no torque left on the screw. Unless it's corroded in there, it should take very little effort with the screw driver. I probably cut a very small amount into the head itself on either side of the screw, but not by much, and it didn't hurt anything.
 
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Old 09-26-2014, 02:11 PM
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Yep, reslotted with Dremmel. Took me a while to find the right size screwdriver that was smaller than the bolt and could get the right amount of torque without slipping out. Thanks for the reply.
 
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Old 09-26-2014, 06:45 PM
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Did it work?
 
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Old 09-29-2014, 09:22 AM
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Originally Posted by bradtyler02
Did it work?
Wasn't easy but it worked!
 
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Old 09-29-2014, 12:12 PM
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Yeah, when someone mentioned the idea to me, I was like, no way this will work... But after a few days of struggling, I tried it and surprise surprise!
 
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