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Bolt removal from wood

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paul

11-30-2001 17:24:59

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Got 8x8 southern pine poles in the 90 year old barn. The stantions need rebuilding, and I need to remove the 3/8" bolts that go through. They seem rusted in pretty tight. Slow rocking with a wrench turned one off. Pounding with a hammer on another just mushroomed it. And ideas? I can't imaging penitrating oil does much in a metal/wood situation? They seem rusted in the full 8 inches. Might have to redrill new holes, but that does screw up the plans a bit...

--->Paul

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john-n-fl

12-07-2001 06:28:24

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Re: bolt removal from wood in reply to paul, 11-30-2001 17:24:59

i would go with bcPA plan except i use ivory liquid dish soap use it freely its worked for me on old phone poles

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bcPA

12-03-2001 11:22:19

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Re: bolt removal from wood in reply to paul, 11-30-2001 17:24:59

I would try drilling a small hole directly above the bolt thru the wood with a small diameter, long bit. Then put penetrating oil in there with a piece of small tubing to soak and run down both sides of the bolt. Then try the suggestion you like best to move the unwelcome resident of the hole.

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Mark A

12-03-2001 09:16:14

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Re: bolt removal from wood in reply to paul, 11-30-2001 17:24:59

Perhaps if you got some drill bits with a reverse twist, and try drilling them out with a drill running in reverse, just as you would in metal. Cut the bolts off flush at the wood, and drill the bolts. In my opinion, either you will completely drill the bolts out, or the reverse twist will bite into the bolts and get them started to come out. Just my opinion though. Good luck

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thanks - paul

12-02-2001 08:21:11

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Re: bolt removal from wood in reply to paul, 11-30-2001 17:24:59

Thanks for some creative ideas. :)

With lots of wood, hay, & straw around I won't use a torch - 5000 bales in the loft would make a spectacular blaze! ;) I can twist the bolts off with a 10" Cresent wrench, tho some have the heads rusted down to nothing to grab. I'll try the BIGGER hammer method first, and follow up the line from that. Thanks again,

--->Paul

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John Ne.

11-30-2001 21:49:07

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Re: bolt removal from wood in reply to paul, 11-30-2001 17:24:59

Are you twisting the heads off the bolts? Or are they carriage bolt type. I'd use a big pipewrench, and have someone pound on them while twisting. If you're peening the threaded end over, use a heavier hammer, a light hammer with turn them into rivet heads, a four pound or larger one should help jar them out. John in Nebr.

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Norman(ID)

11-30-2001 20:48:10

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Re: bolt removal from wood in reply to paul, 11-30-2001 17:24:59

Just a Thought, but you could get a piece of pipe or tubing just big enough to fit over the bolts and long enough to go clear through your posts. cut teeth on one end like a hole saw and weld a short rod or bolt in the other end so that you can chuck it in a drill and cut the wood out around the bolts with this setup.Don't forget to put some set in the teeth or it will bind up before you get very deep.If this works you can then glue dowels in and redrill your holes or use the same pipe or tube to bush down to the original size hole.

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buck

11-30-2001 19:44:02

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Re: bolt removal from wood in reply to paul, 11-30-2001 17:24:59

If you have an air compressor use one of the small air hammers with a flat point on the bit. Rattle their chimes they will come out. you can use a sharp chisel to cut the nuts off if needed.

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Redtractorman

12-01-2001 07:49:49

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Re: Re: bolt removal from wood in reply to buck, 11-30-2001 19:44:02

Yes,this is the way to remove any stubborn bolt or pin,the vibration looses the bolt on will drive rightout with air hammer,lots of times does not damage bolts much.

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PCC-AL

11-30-2001 17:33:29

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Re: bolt removal from wood in reply to paul, 11-30-2001 17:24:59

Hi paul,
Can you place the bolts in a slightly different location on the 8 x 8s ????? You may have to change the length or size of something.

Final resort if no other ideas, drill out the bolts-insert large wooden dowels and drill the dowels for new bolts.

just an idea and probably not a good one. Good luck.

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T_Bone

11-30-2001 19:25:32

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Re: Re: bolt removal from wood in reply to PCC-AL, 11-30-2001 17:33:29

Hi Paul,

I would still have to go with vinegar disloves rust but I don't know it there would be a reaction with the wood and rust. I never tried it.
The only problem is it's a slow process, 1 to 2days and then if there laying where you can soak them. Hard to do if there vertical.

Maybe build a special wrench with a 3ft cheater and twist break the nut off?

If the nuts are not embeded in the wood, use a cut off wheel on a Makita 5" side grinder.

Watch using any type of strong acid as it reacts with wood and will cause a explosion. I won't expand on this idea on the board but e-mail if you want. Fix the e-mail addy to read .com

Maybe scarfing the nuts off with a torch. They make a scarfing tip just for this purpose. Any welding supply house will carry them.

T_Bone

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