Broke off torque converter bolt? Help - Chevy and GMC Duramax Diesel Forum
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Old 10-31-2013, 03:13 PM   eBay Motors  #1 (permalink)
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Broke off torque converter bolt? Help

I got all the torque converter bolts back in except one...somehow it got started wrong and I sheered the head off....what ever do I do now? Any ideas? I was trying to use a easy out but broke the tip off inside the stud...getting worse all the time?? Any help would be appreciated. I imagine I am going to have to drill the hole bigger and rethread.
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Old 10-31-2013, 03:34 PM   eBay Motors  #2 (permalink)
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I got all the torque converter bolts back in except one...somehow it got started wrong and I sheered the head off....what ever do I do now? Any ideas? I was trying to use a easy out but broke the tip off inside the stud...getting worse all the time?? Any help would be appreciated. I imagine I am going to have to drill the hole bigger and rethread.

Those easy outs are usually hardened so that really sucks.....you can either use a TIG welder and weld on a nut or try to freeze and break it up in the hole.
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Old 10-31-2013, 03:35 PM   eBay Motors  #3 (permalink)
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Normally you would pull the trans and converter as one unit. in this case id yank the trans and leave the converter hooked to the flex plate. Then you might have to yank the flex plate and try to separate the two on a bench instead of trying to fight it through teh starter hole
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Old 10-31-2013, 03:45 PM   eBay Motors  #4 (permalink)
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Normally you would pull the trans and converter as one unit. in this case id yank the trans and leave the converter hooked to the flex plate. Then you might have to yank the flex plate and try to separate the two on a bench instead of trying to fight it through teh starter hole
I hope your joking. For one if he broke the head off he can still pull the converter and trans as one. How do suppose he gets the flex plate off if the converter was bolted to it?
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Old 10-31-2013, 03:50 PM   eBay Motors  #5 (permalink)
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not 100% of his situation, or if the converter is even stuck to the flywheel or not.. so its just an option.

If there is only one stuck bolt you should be able to have to converter rotate far enough out of the way unbolt the fly wheel.
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Old 10-31-2013, 03:54 PM   eBay Motors  #6 (permalink)
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I have had similar situations where I used a reverse twist drill bit and a good reversable drill to back out a broken bolt where I couldn't remove the piece to work on it. I made a small pilot hole and then used an M44 cobalt reverse twist bit slightly smaller than the bolt diameter with lots of downward pressure, spun it right out.
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Old 10-31-2013, 03:54 PM   eBay Motors  #7 (permalink)
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not 100% of his situation, or if the converter is even stuck to the flywheel or not.. so its just an option.

If there is only one stuck bolt you should be able to have to converter rotate far enough out of the way unbolt the fly wheel.
I'll bet it's not stuck to it.
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Old 10-31-2013, 03:58 PM   eBay Motors  #8 (permalink)
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I'll bet it's not stuck to it.
I doubt it is. But how about we give him options as we dont know the details on whats going on.
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Old 10-31-2013, 04:09 PM   eBay Motors  #9 (permalink)
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The tranny is back in the truck..so I would rather not remove that again if I dont have too. And the head broke off so the stud is still in there holding the flex plate and torque conveter together. All the other bolts are in and tight. How would you freeze it? Its kinda hard to get too but I did remove the engine mount so that helped. It's on a 12 so the new frame gets in the way pretty bad. I am trying to think on how I could start a pilot hole dead center, maybe get a hole saw that fits in the hole with a pilot bit. Thanks for the ideas...was messing around all afternoon with it and is not going
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Old 10-31-2013, 04:10 PM   eBay Motors  #10 (permalink)
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The converter has too come off in order to remove the flexplate. I think I am stuck with how it is.
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