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07-03-2016, 08:58 PM
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#1 |
 Drives: R32 Join Date: Apr 2016
Location: Bay Area
Posts: 28
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Stripped flywheel bolt
Hey guys while torquing down the the first of 6 flywheel bolts I didn't realize I had set my torque wrench to around 94ft lbs roughly than the 74. The bolt began to spin easily, I stopped looked and my wrench and my heart sank.. I was able to torque the rest down the the proper torque. So I have 5/6 flywheel bolts torqued to factory spec. One spins easily when I attempted to torque it, I haven't bothered backing the bolt out at all.
Looking for advice for my stupid mistake.. Should I leave it in? Attempt to take it out? Edit: I was using brand new bolts from the dealership and loctite was applied too. Last edited by Yay240; 07-03-2016 at 09:19 PM. |
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07-03-2016, 09:40 PM
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#2 |
          Drives: 2SS/RS L99 BLACK Join Date: Apr 2010
Location: Franklin , MA
Posts: 6,696
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I'd take it out, it may just be the bolt stripped, if so an easy fix. If you don't take it out, it will come out eventually causing more damage.
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07-04-2016, 04:45 PM
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#3 |
 
Drives: 2015 2SS, 1LE, Dual Mode, Black Join Date: Aug 2014
Location: Central Florida
Posts: 73
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I agree with CFD, take it out and see what you have. If it is the bolt that stripped, then run an end tap into the hole to clean out the pieces and then use a new bolt. If it is the crank hole that failed, then you can attempt a heli-coil repair. Don't run without the bolt, the flywheel mounting needs to be solid as it transfers all of the engine power output. If you leave out one bolt, sure it will run OK initially but not for long. Let us know how it turns out. Good luck.
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07-04-2016, 06:01 PM
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#4 |
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In The Circle
Drives: 2010 Camaro 2SSRS IOM M6 Join Date: May 2009
Location: Abbotsford BC Canada
Posts: 11,292
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Good Luck, but you most likely stripped the crank threads.
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07-04-2016, 08:07 PM
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#5 |
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Drives: R32 Join Date: Apr 2016
Location: Bay Area
Posts: 28
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Ok so I went to take out the bolt and the head broke off. Now the threads of the bolt are still inside the hole. I'll need to get an extractor to remove it now...
Any suggestions of an extractor to remove it? |
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07-04-2016, 10:45 PM
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#6 |
Drives: Black '13 2SS/RS/1LE w/NPP/NAV Join Date: Oct 2012
Location: Tampa by way of Miami...
Posts: 4,934
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Pull the flywheel and see how much material is protruding to work with.
You may be able to just use pliers. You may have lucked out here...
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My Build Thread... http://www.camaro5.com/forums/showthread.php?t=285054
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07-04-2016, 10:47 PM
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#7 |
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Drives: Black '13 2SS/RS/1LE w/NPP/NAV Join Date: Oct 2012
Location: Tampa by way of Miami...
Posts: 4,934
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Maybe buy a set of ARP bolts and double check your TQ setting twice before you go at it.
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My Build Thread... http://www.camaro5.com/forums/showthread.php?t=285054
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07-04-2016, 11:57 PM
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#8 | |
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10.11 @ 136.32
Drives: Black & Yellow 2SS/RS LPE LS7 427 Join Date: Mar 2010
Location: Redcliff, Alberta
Posts: 957
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Quote:
I think you might have gotten lucky here as well.
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07-12-2016, 09:13 PM
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#9 |
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Drives: R32 Join Date: Apr 2016
Location: Bay Area
Posts: 28
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I used the Irwin Master Screw Extractor kit and got the bolt out no problem. Took my time and it was out within an hour.
Bought ARP bolts and will be double checking my TQ twice moving forward...  
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07-12-2016, 09:23 PM
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#10 |
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Drives: Black '13 2SS/RS/1LE w/NPP/NAV Join Date: Oct 2012
Location: Tampa by way of Miami...
Posts: 4,934
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Glad you got lucky man. That could have been catastrophic...
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My Build Thread... http://www.camaro5.com/forums/showthread.php?t=285054
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