Tips for removing sheared bolt - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 11 (permalink) Old 03-02-2013, 02:11 PM Thread Starter
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Tips for removing sheared bolt

One of the bolts attaching my front rotor shear off flat with the carrier. I was hoping there was a little meat left so I could get it out with some vice grips, but no such luck. I'm thinking getting a small drill bit and drilling it out. I made a half-ass attempt to jbweld it back together last night and that failed as expected. I bet a small weld would do the trick but I don't have access to anything like that. Any other suggestions?


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post #2 of 11 (permalink) Old 03-02-2013, 02:39 PM
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post #3 of 11 (permalink) Old 03-02-2013, 03:10 PM
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Use heat, propane torch and a small sharp drill bit.

I prefer a left handed drill bit and heat...



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post #4 of 11 (permalink) Old 03-02-2013, 06:15 PM
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JB weld......??? Seriously man !!?? LOL !!!

LOL !!! Sorry.... Ok..... Yes what Nobody said..... Oil it up, soak it HEAT !!! is key.... will expand the metal around the bolt. And a left handed drill bit or extractor bit will do the job.

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post #5 of 11 (permalink) Old 03-02-2013, 07:11 PM Thread Starter
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Tips for removing sheared bolt

Harbor Freight to the rescue.......Extractor bit set on sale for 8.99 plus 20% off coupon.

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post #6 of 11 (permalink) Old 03-02-2013, 07:24 PM
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Harbor Freight to the rescue.......Extractor bit set on sale for 8.99 plus 20% off coupon.

Attachment 8714
Attachment 8722
Attachment 8730



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All done?...nice job.



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post #7 of 11 (permalink) Old 03-02-2013, 08:13 PM
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Over-tightening's caused your problems here...

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post #8 of 11 (permalink) Old 03-02-2013, 08:50 PM
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Originally Posted by The Stig View Post
Over-tightening's caused your problems here...
If it were me. I'd throw the whole lot away and buy new. Just in case you have a bolt that has been stretched or cracked. (Small enough to where you cannot see it.)

The last thing you want to do is have this happen again.



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post #9 of 11 (permalink) Old 03-02-2013, 09:37 PM
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Excellent. As recommended on the great tools post! https://www.rc51forums.com/forums/showthread.php?t=8592
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post #10 of 11 (permalink) Old 03-03-2013, 12:42 AM
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These only get torqued to 14 ft lbs, which is pretty low. The thread locker does most of the work. Just don't put red loctite on there. Honda uses red, but it is actually the same as the blue (non-permanent) that we are supposed to use. The manual also says to replace the bolts every time with new ones.

One note about aftermarket replacement bolts: if you get bolts from Pro-bolt, they have different torque values for the stainless steel. A friend discovered this the hard way when using their rotor bolts. The titanium ones are the only ones that use OEM torque specs




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Last edited by b.miller123; 03-03-2013 at 12:45 AM.
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