Removal of a broken bolt ?
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Removal of a broken bolt ? Expand / Collapse
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Posted 10/10/2008 11:09:23 AM
Ruby Red Lip

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I have a stainless bolt that has sheered off and is possibly cross threaded into one of my rod holders. I have tried to drill it out with a Dremmel tool to no avail. The piece that it is stuck into is chromed aluminum. Some corrosion some cross threading. Kinda hard to explain. Anyone have any home remedies for something like this. It is a Lees Marine holder that goes on my poling platform. The bolt is like Excalibur it currently has hurt feelings because it has been called every name in the book and some that aren't there yet.. Thanks
Post #198918
Posted 10/10/2008 11:13:27 AM


White Marlin

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A bolt extractor set.

First you drill a small hole into the bolt (depending on the size of it) then the bolt extractor is a tpered, or cone shaped drill bit basically, but with the threads going in the opisite direction. So as you turn it into the hole you drilled in the bolt, (but counterclockwise) it tightens into the bolt, wedging and "grabbing it harder, and you are spinning it counterclockwise though, so it turns the bolt out!

Pray it real good with PB blaster or similar first to try and break the corrosion.

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Post #198922
Posted 10/10/2008 11:41:08 AM


Snapper

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if for whatever reason you can't get it out you can allways drill it out completely and then heli-coil it.

I can't even begin to count how many broken bolts I either extracted or heli-coiled working as a mechanic....

and if it actually is cross threaded you might be quick to helicoil it.. either way sounds like its gonna be a fun one. Give me a yell if you need a hand Ill see if i have any extractors or heli-coils still laying around

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Post #198943
Posted 10/10/2008 11:42:04 AM


Grouper

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working with stainless can be a real pain(especially bolts) they gauld real easy without some kind of neverseiz....and to drill it has to be at a VERY VERY slow speed or you will burn up the drill bit....as Clay said use an easy out(bolt extractor) once you get a hole in it.....or use a very small bit first then increase the size gradually....being its in aluminum it should have stripped the treads in it....instead of gaulding.....I have welded a washer(to the broken part of the bolt) then a nut to the washer....then using the nut to turn the broken part of the bolt out....but thats real iffy...doesn't always work....and depending on the bolt size may not be an option anyway....you also could take a punch and drive the broken part of the bolt thru(which will damage the treads) and tap to the the next bolt size bigger....Good luck!!! I feel your pain

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Post #198944
Posted 10/10/2008 1:18:52 PM
Ruby Red Lip

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Thanks all I'll go get an extractor and call it some more names for a while. If that doesn't work I'm taking it to a pro. Thanky
Post #198984
Posted 10/10/2008 2:03:03 PM


Grouper

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make sure you call it a SOB a couple of times.  I find "You damn SOB"  works good but there are some other ways to say it that work as well.  Get a good ratchet to beat it with as well.  I like keeping some spare tools in a tray with me so I can throw while I'm calling it a SOB.  Make sure you wife comes out and asks "whats wrong" during the middle of the ordeal so you can yell at her and get in a big fight.  Unless you do that the bolt will never come out.

 

Post #199000
Posted 10/10/2008 2:46:20 PM
Snapper

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AUradar (10/10/2008)
make sure you call it a SOB a couple of times.  I find "You damn SOB"  works good but there are some other ways to say it that work as well.  Get a good ratchet to beat it with as well.  I like keeping some spare tools in a tray with me so I can throw while I'm calling it a SOB.  Make sure you wife comes out and asks "whats wrong" during the middle of the ordeal so you can yell at her and get in a big fight.  Unless you do that the bolt will never come out.

Isn't that the truth!! Don't forget the kick to the post and punch to the gunnel side rail. Then you have to have the wrench slip so you can scuff all the skin off your knuckles.

Post #199016
Posted 10/10/2008 8:43:36 PM
Ruby Red Lip

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Dremel is too fast get a slower drill with some torque. Find the smallest possible drill bit and start drilling it out and keep moving up in size of bits. Slow process but works every time. Bolt extractors never seemed to work for me. If the head of the bolt broke off it usually means that bolt is pretty well stuck and the bolt extractor ends up just breaking inside the bolt. I am the king of finding stuck bolts and turning 1 hour jobs into 4 hour projects. Around the 3 hour point is when every tool within reach turns into a hammer.

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