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Broken head bolt 120-130 1966

posted by  sdewolfe on  Sat Oct 4 00:38 CST 2003
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last visit: Mon Jan 31 05:56 CST 2011
[RELATED]

Jim,

All the answers to your question (and your point about torque) are excellent. I just wanted to add my 2 cents as well.

I have encountered broken bolts that responded to applying torque CW when they wouldn't budge CCW. Then you can work the bolt back and forth increasing the degrees of rotation each time in the CCW direction. This seems to work best when particles are binding in the threads.

If the problem progresses to drilling the bolt out, sometimes a left-twist bit will grab the bolt and back it out. (Not often mind you, but sometimes.)
--
Mr. Shannon DeWolfe -- (I've taken to using Mr. because my name tends to mislead folks on the WWW. I am a 47 year old fat man ;-) -- KD5QBL






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