How to extract broken blade bolt?

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  #1  
Old 12-04-04, 12:12 PM
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Unhappy How to extract broken blade bolt?

What method works to extract a broken blade bolt in the crankshaft? Mine broke while mowing today. This mower has never had the blade off as it is the first season I used it and of course the warranty is over.

Isn't this a reverse thread bolt making easy outs not a removal choice?
 
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  #2  
Old 12-04-04, 12:19 PM
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mowfixer
The bolt in the crank should be normally a 3/8-24 thread. It should not be left hand thread. If you can center punch it you should be able to remove it with an easy out. One trick I use at work is when a bolt shears off, I bring out the old stick welder and build the broken part of the bolt up to a point where I can get vise grips on it and I haven't had one that wouldn't come out. (the heat from the welder will usually help break the bolt loose.----just remember to not get any weld on the crank if you try this)

snoman
 
  #3  
Old 12-04-04, 01:02 PM
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Got It Out!

I used a reverse drill bit set and was able to spin the broken bolt out of the crankshaft. Got lucky!
 
  #4  
Old 12-04-04, 02:02 PM
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Way to go...I'm glad it worked out for you.

snoman
 
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