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Impossible bolt- need tricks and suggestions

 
Old 10-28-2018, 11:11 AM
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Default Impossible bolt- need tricks and suggestions


trans bellhousing bolt (14mm with nut on front). Stripped threads. Yesterday I Tightened a new nut on the good threads and jb welded the two together. Tried to spin both off by the good nut and the jb weld just broke. Iím thinking 18 hours wasnít enough cure time so I cleaned everything up and applied some more. But I need other suggestions in case that fails again.
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Old 10-28-2018, 11:50 AM
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I use versions of these.

Nut Splitter Tools Nut Splitter Tools


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Old 10-28-2018, 11:50 AM
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How about you do it the right way and replace the bolt and nut?
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Old 10-28-2018, 12:11 PM
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I don't think you're going to fit a nut splitter over the nut because it's too close to the block.

It's time to remove one end of the bolt -- the head is probably easier to get to, so I'd try that. Drill, dremel, cutoff wheel, something like that. You might need to pull the motor + tranny together and do it out of the car.

--ian
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Old 10-28-2018, 12:42 PM
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Definitely looks like a cut it off situation like Ian said.
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Old 10-28-2018, 01:19 PM
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Dremel to start, air chisel to finish. Come in from the wheel well. Don't overtighten it next time
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Originally Posted by codrus View Post
Basically I've come over to the camp of "If something is a reliability problem on the track, just ask Andrew and do what he says".
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Old 10-28-2018, 01:19 PM
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Originally Posted by rleete View Post
How about you do it the right way and replace the bolt and nut?
Right, whats the first step in replacing a bolt and nut? Removing the bolt... Thanks though guy
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Old 10-28-2018, 01:22 PM
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Alright everyone, looks like I finally have an excuse to buy a dremel! Thanks for the replies.
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Old 10-28-2018, 02:18 PM
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If you don't already own the Dremel, don't buy one. They are awful. Get a proper rotary tool that will fit that space, something like a Milwaukee M12 or similar.
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Originally Posted by codrus View Post
Basically I've come over to the camp of "If something is a reliability problem on the track, just ask Andrew and do what he says".
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Old 10-28-2018, 02:44 PM
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Originally Posted by Savington View Post
If you don't already own the Dremel, don't buy one. They are awful. Get a proper rotary tool that will fit that space, something like a Milwaukee M12 or similar.
I would argue this point.

I've had the same corded multi-speed dremel tool for about the past 15 years. If their quality has gone downhill in recent years, then I'll retract this comment. But I have beat the absolute hell out of that tool, and it's never let me down. I wish I could post a photo and the model number, but I left it at work this weekend, as I've been using it to modify a set of 30 year old Vinten Fulmar camera pedestals to accept a modern robotic head, and also to lock their leaky pneumatic columns in place.

Would I spec this tool for use on an assembly line where it'll be in service for two shifts every day? Hell no. It's a consumer-grade product. But for my needs, it does the job well.
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Old 10-28-2018, 02:47 PM
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For small items and small jobs, they are fine. The problem is that nothing on a car is small enough to justify its size and corresponding lack of power. I owned one and threw it away after the collet lock snapped off, dooming it to a lifelong marriage with a broken router bit.

For cutting through the nut and shaft of an M12 bolt, I would not suggest one.
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Originally Posted by codrus View Post
Basically I've come over to the camp of "If something is a reliability problem on the track, just ask Andrew and do what he says".
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Old 10-28-2018, 02:58 PM
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Originally Posted by Savington View Post
For cutting through the nut and shaft of an M12 bolt, I would not suggest one.
Assuming that you are only doing it occasionally, I would endorse a corded Dremel product for this task. I have used it for much larger jobs. Takes a while, but the light weight and small size make it a winner for me.
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Old 10-28-2018, 03:08 PM
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Originally Posted by Savington View Post
For small items and small jobs, they are fine. The problem is that nothing on a car is small enough to justify its size and corresponding lack of power. I owned one and threw it away after the collet lock snapped off, dooming it to a lifelong marriage with a broken router bit.

For cutting through the nut and shaft of an M12 bolt, I would not suggest one.
Agreed. There are much better tools for working on things than a Dremel. They are for the person who lives in an apartment and only has one power tool.
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Old 10-28-2018, 03:10 PM
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Originally Posted by dantrapp View Post
Right, whats the first step in replacing a bolt and nut? Removing the bolt... Thanks though guy
I thought you were trying to JB Weld the nut in place. Thanks for the negatives.

The answer to getting it off is a cold chisel; split the nut.
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Old 10-28-2018, 03:21 PM
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Originally Posted by Savington View Post
For small items and small jobs, they are fine. The problem is that nothing on a car is small enough to justify its size and corresponding lack of power. I owned one and threw it away after the collet lock snapped off, dooming it to a lifelong marriage with a broken router bit.

For cutting through the nut and shaft of an M12 bolt, I would not suggest one.
A dremel will cut an M12 bolt just fine. I wouldn't recommend it as a primary metalworking fabrication tool, but they're useful tools to have for miscellaneous small jobs.

--Ian
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Old 10-28-2018, 03:50 PM
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When i crack my boat (wood) i use a dremel to router out the crack before applying filler. Dremel is good for light, delicate work, even if it's a big job. In the scenario in which i need to grind down a half inch bolt head, a dremel isn't my first thought. It just doesn't have the *****.

For that i use this:
Amazon Amazon
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Old 10-28-2018, 03:53 PM
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Originally Posted by Erat View Post
When i crack my boat (wood) i use a dremel to router out the crack before applying filler. Dremel is good for light, delicate work, even if it's a big job. In the scenario in which i need to grind down a half inch bolt head, a dremel isn't my first thought. It just doesn't have the *****.

For that i use this: https://www.amazon.com/Makita-GD0601.../dp/B001ASC73E
I'd use a cutting disc to cut the head off, rather than trying to grind it all away. Dremel will do that fine.

--Ian
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Old 10-28-2018, 04:01 PM
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These little guys?

Even with these the Dremel stalls out, chews them up too quickly, or doesn't cut off material.
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Old 10-28-2018, 04:02 PM
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Originally Posted by codrus View Post
I'd use a cutting disc to cut the head off, rather than trying to grind it all away. Dremel will do that fine.
It will do this, indeed.
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Old 10-28-2018, 04:05 PM
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I just don't know guys. I'm probably doing something completely wrong with my dremel. Don't get me wrong, i absolutely love it and i know it has it's place. But man i just don't remember it cutting through metal, specifically a bolt head that easily.
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