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Side Pipe Stud Removal ????????

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Old Dec 6, 2009 | 08:54 PM
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Default Side Pipe Stud Removal ????????

I pulled the right exhaust header and side pipe off (b/c I pulled the engine for a rebuild), but the left side pipe studs just spin inside the frame (closed tube).... the front and the rear both spin when I try to loosen the nuts.

Anyone had experience with this and know how to remove (without sawzall'ing or torching them off) ???

When the right side came off the front nut loosened no problem (stud didn't move), but the rear spun, and I had to **** the pipe so that the slotted head caught / bound-up in the slotted hole - which allowed me to put enough pressure on the rear stud to bind it inside the frame and wrench the nut off.

However, I can't manipulate the left side pipe b/c both studs are still in, fully seated, and are both spinning (which means I can't angle the pipe).


Hmmm.

Help please.

DS

Last edited by DesertSpider; Dec 6, 2009 at 09:10 PM.
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Old Dec 6, 2009 | 08:57 PM
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I have to ask... Are these the Hookers in your avatar pic?
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Old Dec 6, 2009 | 09:03 PM
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yes
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Old Dec 6, 2009 | 09:17 PM
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Although it will screw up the threads, can you grip the end of the stud with a needle nose vise grips?
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Old Dec 6, 2009 | 09:25 PM
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Originally Posted by skids
Although it will screw up the threads, can you grip the end of the stud with a needle nose vise grips?
Yes, which I initially tried with the Right (passenger) Rear.... BUT, this mangled the threads so much that it was really difficult to get the nut off the last eight full turns or so.... almost didn't get the nut off at all b/c of this.

Hoping for an alternative solution.

How did GM originally intend for this to be done ?

DS

Last edited by DesertSpider; Dec 6, 2009 at 09:34 PM.
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Old Dec 6, 2009 | 09:35 PM
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They can be a real bear do remove. I had the same problem years ago, and ended up cutting them off with a thin cutoff wheel on the die grinder. Then replace them with new one's, with antiseize.
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Old Dec 6, 2009 | 10:27 PM
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Is the header disconnected from the head?

If the nuts are loose enough to spin, you could try to gently drive the brackets forward or backward along the frame enough to expose a bit of the slot in the frame.. Stick something like an offset phillips screwdriver into the exposed slot.

The side mount bolts have a "T" on the end. What you stick into the slot on the frame will stop the bolt from being able to spin.
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Old Dec 6, 2009 | 10:45 PM
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You can try to take a flat screwdriver or pry bar and put it between the frame and the bracket and pull down to make the head of the bolt bind against the inside of the frame. That might just be enough to get the nuts off.
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Old Dec 6, 2009 | 11:50 PM
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Originally Posted by nassau66427
Is the header disconnected from the head?
Yes, engine is out - right side header and pipe are out of car as well, only left side header and left side pipe remain.

Originally Posted by nassau66427
If the nuts are loose enough to spin, you could try to gently drive the brackets forward or backward along the frame enough to expose a bit of the slot in the frame.. Stick something like an offset phillips screwdriver into the exposed slot.

The side mount bolts have a "T" on the end. What you stick into the slot on the frame will stop the bolt from being able to spin.
I like this idea, I'll give this a shot.
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Old Dec 6, 2009 | 11:56 PM
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Originally Posted by KC John
You can try to take a flat screwdriver or pry bar and put it between the frame and the bracket and pull down to make the head of the bolt bind against the inside of the frame. That might just be enough to get the nuts off.
Ended up being the first thing I tried on the Right (passenger side) Rear, worked fairly well until I got the nut into the rusted part of the stud threads.

Thx for the comment.

DS
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Old Dec 7, 2009 | 09:59 AM
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A buddy helping me suggested either something like this:



Or using one of these with a wrench so that the end of the stud "grounds out":



Then I've got to get it the rest of the way off by either holding onto the portion of the stud down by the shoulder or binding the head up somehow in the frame....


grrrrrrrrrrrrrrrrrrrrrrrrr
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Old Dec 7, 2009 | 10:00 AM
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I'd still like to know how the original design was intended to work..... this just seems silly to me.

DS
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Old Dec 7, 2009 | 10:31 AM
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Default Carriage Bolt

The rear attachment bolt is supposed to be a carriage bolt. The square under the head fits into the frame slot and prevents the bolt from turning. When they get rusty they are a PIA to remove. The bolt head will slide out of the slot if you get it to loosen a bit, then remove the whole assembly and cut it off with a hacksaw.
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Old Dec 7, 2009 | 10:34 AM
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Originally Posted by mrichard
The rear attachment bolt is supposed to be a carriage bolt. The square under the head fits into the frame slot and prevents the bolt from turning. When they get rusty they are a PIA to remove. The bolt head will slide out of the slot if you get it to loosen a bit, then remove the whole assembly and cut it off with a hacksaw.
I think the shoulder under the head of my bolts are round (looks like a stepped cylinder).

I get what you are saying. Where do I get new ones that have the square shoulder (the usual: Ecklers / MidAm) ?

DS
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Old Dec 7, 2009 | 10:56 AM
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Use a regular 3/8-16 carriage bolt and lock nut from Lowes or Home Depot. Get a galvanized if originality is not a concern and it will never rust. These are soft bolts, so don't over-tighten, or they will break. They are strong enough to do the job.
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Old Dec 7, 2009 | 11:13 AM
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Originally Posted by mrichard
Use a regular 3/8-16 carriage bolt and lock nut from Lowes or Home Depot. Get a galvanized if originality is not a concern and it will never rust. These are soft bolts, so don't over-tighten, or they will break. They are strong enough to do the job.
Is the neck dimension (size of the square beneath the head) large enough on a 3/8-16 carriage to fill up the slot width in the frame ?

Out of curiosity, do you have a picture of this set-up ?

This seems like a good alternative to finding exact replacements (since those aren't working out too well).

DS
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Old Dec 7, 2009 | 11:15 AM
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I think that with Hookers, originality would not be an issue. Therefore, getting or cutting those out no matter how destroyed those bolts get is the priority.
Then, when time to install, flatten out the brackets on the sidepipe and have some bolts welded externally to the frame. It's virtually unseen from the point of view that people have while looking at cars at shows.
I had this problem and decided to just give up on the original design that Hooker Headers intended by using those frame slots. Besides, I could not find replacement bolts for the life of me. So I improvised.
I took it to a muffler shop and told them what I wanted...they said they do that on many vehicles. They provided four bolts and installed both sides for $85.00!
It also makes it easier to remove as often as you need rather than trying to thread those darn things into the slots and messing with the rocker panels as directed by Hooker! I've had to remove mine at least four times already, and it was a sinch!
I'll see if I can get some photos after work today. It's pretty cold in the garage though.
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To Side Pipe Stud Removal ????????

Old Dec 7, 2009 | 11:21 AM
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Originally Posted by DesertSpider
Is the neck dimension (size of the square beneath the head) large enough on a 3/8-16 carriage to fill up the slot width in the frame ?

Out of curiosity, do you have a picture of this set-up ?

This seems like a good alternative to finding exact replacements (since those aren't working out too well).

DS
The dimension of the square on a 3/8-16 would be 3/8. Although when you give the bolt 1/8 turn, that dimension now would be 1/2", so might be enough to catch in the slot.
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Old Dec 7, 2009 | 11:22 AM
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Originally Posted by Astrodokk
I think that with Hookers, originality would not be an issue. Therefore, getting or cutting those out no matter how destroyed those bolts get is the priority.
Then, when time to install, flatten out the brackets on the sidepipe and have some bolts welded externally to the frame. It's virtually unseen from the point of view that people have while looking at cars at shows.
I had this problem and decided to just give up on the original design that Hooker Headers intended by using those frame slots. Besides, I could not find replacement bolts for the life of me. So I improvised.
I took it to a muffler shop and told them what I wanted...they said they do that on many vehicles. They provided four bolts and installed both sides for $85.00!
It also makes it easier to remove as often as you need rather than trying to thread those darn things into the slots and messing with the rocker panels as directed by Hooker! I've had to remove mine at least four times already, and it was a sinch!
I'll see if I can get some photos after work today. It's pretty cold in the garage though.
Excellent solution!!
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Old Dec 7, 2009 | 11:27 AM
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Originally Posted by Astrodokk
I think that with Hookers, originality would not be an issue. Therefore, getting or cutting those out no matter how destroyed those bolts get is the priority. Then, when time to install, flatten out the brackets on the sidepipe and have some bolts welded externally to the frame. It's virtually unseen from the point of view that people have while looking at cars at shows.
Why do you flatten out the brackets ? What does this help ?

Originally Posted by Astrodokk
I had this problem and decided to just give up on the original design that Hooker Headers intended by using those frame slots. Besides, I could not find replacement bolts for the life of me. So I improvised. I took it to a muffler shop and told them what I wanted...they said they do that on many vehicles. They provided four bolts and installed both sides for $85.00! It also makes it easier to remove as often as you need rather than trying to thread those darn things into the slots and messing with the rocker panels as directed by Hooker! I've had to remove mine at least four times already, and it was a sinch! I'll see if I can get some photos after work today.
What do you do if the threads get buggered-up, cut the studs off and reweld ??


Originally Posted by Astrodokk
It's pretty cold in the garage though.
Best $100 I've spent this year (Lowes), runs on the same tank I use for my grill, just vent the garage a little and this thing keeps it TOASTY:

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