HELP! bolt stripped
Thread Starter
Drifting
Joined: Nov 2006
Posts: 1,714
Likes: 20
From: Ontario
HELP! bolt stripped
I need some advice on how to remove a stuck and stripper bolt from the base of the L98 manifold, everything was going well till the very last bolt on the intake 
. I tried vicegrips, then I squared the edges best I could then tried the grips again. I tried to JB-weld a nut onto the bolt but it didnt harden overnight. I tried an ez-out but it felt like it was about to break so I stopped... what can I do?
. I tried vicegrips, then I squared the edges best I could then tried the grips again. I tried to JB-weld a nut onto the bolt but it didnt harden overnight. I tried an ez-out but it felt like it was about to break so I stopped... what can I do?
Le Mans Master
Joined: Jul 2007
Posts: 5,356
Likes: 2
From: No HOA, New Hampshire
Cruise-In X Veteran
St. Jude Donor '09
I need some advice on how to remove a stuck and stripper bolt from the base of the L98 manifold, everything was going well till the very last bolt on the intake . I tried vicegrips, then I squared the edges best I could then tried the grips again. I tried to JB-weld a nut onto the bolt but it didnt harden overnight. I tried an ez-out but it felt like it was about to break so I stopped... what can I do?
. I tried vicegrips, then I squared the edges best I could then tried the grips again. I tried to JB-weld a nut onto the bolt but it didnt harden overnight. I tried an ez-out but it felt like it was about to break so I stopped... what can I do?
Thread Starter
Drifting
Joined: Nov 2006
Posts: 1,714
Likes: 20
From: Ontario
hmm good idea, it should come off, it's the verrrry last bolt on the base. not enough room to grind though, maybe a lil drilling.
Instructor
Joined: Sep 2007
Posts: 207
Likes: 0
From: Exeter RI
I received these as a gift, they're kinda gimacky, but they have worked for me as long as you can fit the tool in there.
http://www.sears.com/shc/s/p_10153_1...d=bolt+remover
http://www.sears.com/shc/s/p_10153_1...d=bolt+remover
Burning Brakes
Joined: Apr 2005
Posts: 1,130
Likes: 0
From: Georgia
I always use a torch to heat the area the bolt is threaded into. I do this for about a few minutes. This makes the metal around it expand. Then I use a vice grip to get it out. It always works for me.
Thread Starter
Drifting
Joined: Nov 2006
Posts: 1,714
Likes: 20
From: Ontario
it's right near fuel lines though so I don't want to risk that, I'll try breaking the head off...
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Instructor
Joined: Sep 2007
Posts: 207
Likes: 0
From: Exeter RI
I have broken every screw extractor I have ever bought..you know the kind that look like a reverse threaded drill bit. The craftsman ones that grab the outside the bolthead work. Of course, if you break the head off the bolt then you'll need to resort to head/welding/vice grips.
Burning Brakes
Joined: Jun 2005
Posts: 1,188
Likes: 13
From: Wallingford Vermont
I know you're concerned about the fuel lines, but unless you lines are rusty (leaking?) or you're using a cutting torch I wouldn't be (concerned).
Get a little MAPP torch up in there. Put a piece of tin (like an old license plate) between you flame and the fuel lines. Heat that bolt up then clamp the vise grips on it before it starts cooling. Don't crank it all at once, just start twisting it (wiggling it) back & forth until it breaks free.http://www.bernzomatic.com/bernzomat...rnzoProd100072
Get a little MAPP torch up in there. Put a piece of tin (like an old license plate) between you flame and the fuel lines. Heat that bolt up then clamp the vise grips on it before it starts cooling. Don't crank it all at once, just start twisting it (wiggling it) back & forth until it breaks free.
http://www.bernzomatic.com/bernzomat...rnzoProd100072
Last edited by DanZ51; Jan 6, 2008 at 05:33 PM.
Instructor
Joined: Oct 2005
Posts: 165
Likes: 0
From: st. Louis MO
re
i agree with Dan, although the main goal of heat is to expand the manifold and not the bolt, with that in mind every little bit helps so I'd put the vise-grips on first to extract heat from the bolt to keep it cooler. Use MAP like Dan explained and it will come out no prob. Also go slow, wiggling first, use lots of oil on it too.
Melting Slicks
Joined: Jun 2002
Posts: 2,705
Likes: 30
From: Chesapeake Beach Maryland
2015 C5 of Year Finalist
I don't know if you have the room to get an Impact Driver in there, but it will do the trick. I don't mean an impact wrench, I mean a manual impact driver. It would work even better with one of those nice new Craftsman gripper sockets and the impact driver. Just a thought.
Race Director
Joined: Jan 2006
Posts: 10,039
Likes: 0
From: CA
Try this.It should be a torx head bolt,T-45 if I remember.Get the next size up,T-47 I think,with a 3/8 square drive.Put an extention on it and drive that into the striped out bolt with a hammer.Give it a couple of good wacks.You will ruin the torx bit,but so what.Jarring the bolt with the hammer will help loosen it.It should break free.Good luck.
