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Unread 07-02-2011, 02:20 PM   #1
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Default Trouble removing a bolt

My dad and I are replacing my front motor mount, and we're having trouble removing a bolt that has a worn out head. We managed to budge it and turn it maybe half a turn before the socket started turning freely without the bolt moving.

What's a good way to get that bolt out, we tried using a slightly smaller socket, and we got it to turn just a little bit more and it started doing the same thing. Basically we want to avoid drilling, and torching it is out of the question because its an extremely tight spot.

Any ideas? It's soaked in liquid wrench but the head of the bolt is so rusty it started crumbling and now we're stuck with one bolt that is on the frame. We did however break the old motor mount off though so we have a LITTLE bit of room.

Advice appreciated it, also apologies if I'm unclear I'm writing this in a rush.
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Unread 07-02-2011, 02:51 PM   #2
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So, hoping that the only issue is the rounded off bolt head, and NOT a seized bolt, you need to get a good grip on what's left of the bolt head.

If you have tried smaller and odd socket sizes already, you are left with welding a nut onto the existing bolt head. But of course that would require a welder, which I suspect you don't have.

You will have to be creative here and try to remove whatever else is in the way to get vise-grips on it or a chisel (last resort). You need to try less destructive means first and the chisel last.

You might try cutting a slot in it, if you think you could use a stubby screwdriver in there, and you could get a cut-off tool in there.
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Unread 07-02-2011, 07:03 PM   #3
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Quote:
Originally Posted by Mr Car Guy View Post
So, hoping that the only issue is the rounded off bolt head, and NOT a seized bolt, you need to get a good grip on what's left of the bolt head.

If you have tried smaller and odd socket sizes already, you are left with welding a nut onto the existing bolt head. But of course that would require a welder, which I suspect you don't have.

You will have to be creative here and try to remove whatever else is in the way to get vise-grips on it or a chisel (last resort). You need to try less destructive means first and the chisel last.

You might try cutting a slot in it, if you think you could use a stubby screwdriver in there, and you could get a cut-off tool in there.
Appreciate the advice, but the bolt is rather too big for these suggestions, so what we did was asked our neighbor for his flexible torch. Heated the bolt until it was red, dumped some water on it, and it came of rather easy, head was still a little rounded off but we managed to loosen it enough to where it wasn't an issue for the socket. Went to auto zone and got 4 new bolts for my motor mount, no more dealing with those rusty pieces of ****.

Now my car has a new motor mount , so its time to celebrate my 9 hours of work in 90 degree weather by :smil3dbd4e4c2e742:.

Thanks again for the advice much appreciated.
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Unread 07-02-2011, 07:39 PM   #4
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Glad you got it out, I guess it was still pretty tight in the threads.
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Unread 07-04-2011, 04:06 AM   #5
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I would have drillled a small hole into the head, and used my small trusty craftsman screwdriver to wrench it out, but congrats!! haha
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Unread 07-04-2011, 05:26 PM   #6
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I know I'm a little bit late to help you but these work great for removing bolts with stripped heads.

http://www.harborfreight.com/9-piece...ets-67897.html



9 Piece 3/8" Drive Metric Bolt Extractor Sockets

Maybe it will help someone else at another time.

Last edited by FordMan59; 07-04-2011 at 05:31 PM.

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