Broken intake bolt in head. HELP! - LS1TECH

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Broken intake bolt in head. HELP!

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Old 07-20-2011, 10:32 PM   #1
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Exclamation Broken intake bolt in head. HELP!

Ok, so Iím pretty much an idiot and after telling myself numerous time not to over tighten the intake manifold bolts I did just that and snapped the third from front to back on the passenger side. It is barely flush with the surface if not below so the old welding a nut or wrench is a no go unfortunately. Is this going to be possible to get out without removing the head? Any help on this will be greatly appreciated. Thanks guys.
-Jason
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Old 07-21-2011, 12:47 AM   #2
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Bolt out kit if you can fit it
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Old 07-21-2011, 01:10 AM   #3
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Man I did the same thing on my driver side head. I could not for the life of me find a drill or anything that could fit under the cowl and still get a good angle on the head. And that damn bolt requires some force to get through with an easy out.
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Old 07-21-2011, 12:07 PM   #4
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maybe a right angle drill and a reverse drill bit... (not sure if even that will fit just a suggestion) good luck
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Old 07-21-2011, 04:42 PM   #5
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right angle drill head and a cut down and resharpened drill bit. So amazed at the number of broken bolt threads I've seen lately. Everybody been eating their Wheaties ?
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Old 07-21-2011, 06:28 PM   #6
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Quote:
Originally Posted by farmington View Post
So amazed at the number of broken bolt threads I've seen lately. Everybody been eating their Wheaties ?
Not using a torque wrench would be my guess. Next to a balancer installer, accurate torque wrenches are the best money you'll ever spend when working on an LS engine.
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Old 07-21-2011, 06:38 PM   #7
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Same thing happened to me but it was the last bolt on passenger side. I couldn't get anything under the fowl. Head had to be removed.
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Old 07-21-2011, 07:09 PM   #8
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remember now that bolt has no torque on it. i have tried and removed small bolts with nothing but a small hardened tip screw driver hammer a grove in it with said screwdriver. use some penetrating oil on it, disimilar metals anything before drill or pulling head. try it you might get lucky, good luck!!
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Old 07-21-2011, 08:14 PM   #9
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Dont worry about it iv done that once on my old 98z. Didnt even feel all that tight when it snapped. I took a 1/16 bit and drilled a little hole in the bolt and bought one of those bolt extractors. Backed it out nice. Just be careful and drill a nice hole and dont go sideways. You also wanna be careful to not get the metal shavings in the intake ports.
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Old 07-21-2011, 08:17 PM   #10
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I broke one too. But I have a corvette so getting it out was eeeasy! Sorry for your luck. I hope you can get it out without removing the head.
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Old 07-22-2011, 04:48 AM   #11
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Thanks for the help guys! I actually ended up getting it out without using an easy out. I let it soak in wd-40 over night and most of the day and when I was trying to punch it to start the drilling/easy out process I noticed that it slightly moved (rotated). After seeing this I realized that it wasn’t bottomed out and was basically moving freely within the head and the wd-40 made it pretty lubricated so I took the smallest flat head screwdriver I had and patiently tapped it over and over again, it took over an hour, until I got it enough above the surface to get a good grip on it with some pliers and got the sucker out. I was pretty excited when it came out to say the least since I was preparing my self to having to pull the head and cart it over to a machine shop. Thanks again for the speedy and good advice guys.
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Old 07-22-2011, 10:11 PM   #12
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always remember if their not bottomed when they break .. no torque..glad the screwdriver worked for you. can we blanket and say " foreign cars are like tampons, every ***** has one!"
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Old 07-23-2011, 01:52 AM   #13
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Quote:
Originally Posted by oldmano2z View Post
always remember if their not bottomed when they break .. no torque..glad the screwdriver worked for you. can we blanket and say " foreign cars are like tampons, every ***** has one!"
The Honda thing is more directed to a certain crowd since there are some foreign cars that are pretty bad *** and donít have d-bag owners lol. Thatís why I stick with the Honda thing but I do see your point
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Old 07-23-2011, 09:22 PM   #14
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Quote:
Originally Posted by oldmano2z View Post
always remember if their not bottomed when they break .. no torque...
Unless they break 'cause they've been cross-threaded...
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