LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Help I Snapped Another Bolt..this Time In The Head!!!(pic)

Old Jan 16, 2008 | 10:15 PM
  #16  
Green96Z's Avatar
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Maybe if you buy an angle drill, something like this: http://www.toolbarn.com/product/portercable/PTD381/

Then start taking apart the cowl for some more clearance, and you MIGHT be able to work something out. It would really suck pulling the head again, but it's really the only way to accurately drill that bolt.
Old Jan 16, 2008 | 10:17 PM
  #17  
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Good luck with that one..... You can try one of them angled drills (forget technical name).
Old Jan 16, 2008 | 10:23 PM
  #18  
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Originally Posted by playa7970
trust me i am after this lol
You MUST remember when you're dealing with such a small bolt and aluminum you really have to be careful. Best thing that has helped me is to choke up on the handle of a socket or regular wrench when tightening.
Old Jan 16, 2008 | 10:57 PM
  #19  
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I did the exact same thing a couple years ago, snapped the rear one off in the pass side head.

I bought a 90* drill adapter from home depot (similar to this)and used it on my electric drill to drill a small hole in the piece stuck in the head. Then I used an extractor (easy-out) to remove it.

Drill a very small hole about 1/8" down the center, then take the extractor and tap it into the hole you drilled. Then put the handle (or a wrench) on the extractor and turn it out very slowly. You do not need to pull the head for this. It won't be as difficult to remove as you think it will.

Thomas.
Old Jan 16, 2008 | 11:06 PM
  #20  
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thanks stoopa ill give it a try tomorrow
Old Jan 17, 2008 | 01:46 AM
  #21  
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if its really awkward consider a flexible shaft for the drill.
if you do end up screwing up the threads thats one place that a helicoil will be ok and probably easy to install.
for pretty much anything thats gasketed I use a nut driver. a while back when I built my honda engine I bought a proto adjustable torque nut driver for doing things like that, and a 1/4" drive torque wrench for valve train. worth every penny.
Old Jan 17, 2008 | 09:03 AM
  #22  
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Originally Posted by SS RRR
You MUST remember when you're dealing with such a small bolt and aluminum you really have to be careful. Best thing that has helped me is to choke up on the handle of a socket or regular wrench when tightening.
I only use an end wrench on these - to fragile for a ratchet - sux, good luck
Old Jan 18, 2008 | 12:41 AM
  #23  
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alright!!!! i did it!!! thanks for all the help guys... heres what i did thanks to stoopa.... went out and bought a 90 degree drill adaptor, center punch and a set of extractors.. first i cleaned the area pretty well...put a small amount a grease so the metal shaving would not get everywhere... took a hit with the center punch so the drill bit wont dance everywhere...tapped the extractor in and it came right out !!and just in case i also used a magnetic pick up and went around the cylinder head to get any other loose shavings thanks again
Old Jan 18, 2008 | 01:05 AM
  #24  
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From: Jackstandican
Originally Posted by playa7970
alright!!!! i did it!!! thanks for all the help guys... heres what i did thanks to stoopa.... went out and bought a 90 degree drill adaptor, center punch and a set of extractors.. first i cleaned the area pretty well...put a small amount a grease so the metal shaving would not get everywhere... took a hit with the center punch so the drill bit wont dance everywhere...tapped the extractor in and it came right out !!and just in case i also used a magnetic pick up and went around the cylinder head to get any other loose shavings thanks again
Well played, sir.
Just be extremely conscious about twisting bolts into aluminum.
Old Jan 18, 2008 | 10:02 AM
  #25  
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Nice, high five! You should keep that bolt in your toolbox as a lesson learned .
Old Jan 18, 2008 | 12:16 PM
  #26  
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Originally Posted by playa7970
alright!!!! i did it!!! thanks for all the help guys... heres what i did thanks to stoopa.... went out and bought a 90 degree drill adaptor, center punch and a set of extractors.. first i cleaned the area pretty well...put a small amount a grease so the metal shaving would not get everywhere... took a hit with the center punch so the drill bit wont dance everywhere...tapped the extractor in and it came right out !!and just in case i also used a magnetic pick up and went around the cylinder head to get any other loose shavings thanks again
Great, glad it worked. People always assume a broken bolt will be difficult to remove, but when it's broken in aluminum, I've found it not to be so difficult. Now iron, there's a completely different story! I've had some nightmares with broken bolts in iron!

Thomas.
Old Jan 18, 2008 | 12:54 PM
  #27  
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Time to stop snapping bolts. That's the mark of a rookie.
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