Reply to "Snapped bolt in block - how deep can this be drilled?"

demopuarMember

jeffsmachine has this one correct. You must get a flat spot in the center of the stud/busted bolt and then center punch. Left handed bits are the answer -- I've never had any luck with easyouts either; but the broken stuff has ALWAYS come out with left handed bits; but it is incredibly important that you start the pilot hole in the CENTER of the broken bolt. Can you get straight on the area, or is this an engine pull thing? Cannot tell from the photo.

Best of luck -- just be patient and it will come out without damaging the threads. Also, you will know when you've went through the bolt or stud, but again, you need to have this thing centered.

Mark

5/14/108:38 PM

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