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Need help trying to remove a nut from headers

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Old Jun 18, 2020 | 03:19 PM
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Default Need help trying to remove a nut from headers

Hey guys need some help or tips and tricks. I’ve been trying to install some deleted cats onto the lower half of the header and I’m having a very tough time getting this bolt out. All of the other bolts are out except for this one on each side. As you can tell from the photo the bolts is starting to stripe off. Any help would greatly be appreciated.

**photos** Driver side bolt. 2nd photo is where it sit behind. Hard to get to. I have most hand tools but can’t get it to budge. Thanks!




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Old Jun 19, 2020 | 07:47 AM
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Soak stud from above with WD40, let sit and then remove the stud with what looks like a good head.

Last edited by jim2092; Jun 19, 2020 at 07:49 AM.
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Old Jun 19, 2020 | 08:17 AM
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If you are taking the stock manifolds off, go up top and remove the manifolds from the heads. This will allow you to drop them down and get better access to that bolt.

I removed the cats from my manifolds on both sides without the above method but that was my backup plan. What I did was WD40 and a 1/2 ratchet and short socket. This allowed me to put the socket all the way down on the nut, and then I just put the ratchet halfway onto the socket. I maneuvered myself to get real good leverage and applied increasing slow force until it broke lose. Worked like a charm for me. I suppose another backup plan would be to pull the stud out, but I highly doubt the stud will come out using the tiny socket on the stud end while that nut is tightened all the way down. You will likely strip the tiny end of the stud first.

Note: If you have mag ride suspension be very careful of the ride height sensors in this area. They are directly in the path or a swinging ratchet when trying to get that bolt loose.

Last edited by Internets_Ninja; Jun 19, 2020 at 08:19 AM.
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Old Jun 19, 2020 | 10:35 AM
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Propane torch applied very carefully...
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Old Jun 19, 2020 | 10:50 AM
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Don’t make your problem worse. Take a break and get yourself an induction heater. Several choices on Amazon.
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Old Jun 19, 2020 | 11:02 AM
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They make special open end wrenches for just that type job, called tube wrenches. Rather than only contacting 2 points, they are designed to contact 6. Here is an example of one (I’m not recommending, this is just the first site that popped up). They are designed for tight access where a socket won’t work and you need a lot of leverage.

https://www.aliexpress.com/item/3294...0-89ca1ea10237

Last edited by Track; Jun 19, 2020 at 11:03 AM.
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Old Jun 19, 2020 | 03:39 PM
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Originally Posted by Track
They make special open end wrenches for just that type job, called tube wrenches. Rather than only contacting 2 points, they are designed to contact 6. Here is an example of one (I’m not recommending, this is just the first site that popped up). They are designed for tight access where a socket won’t work and you need a lot of leverage.

https://www.aliexpress.com/item/3294...0-89ca1ea10237
Don’t use a flare nut wrench on it. They’ll spread and pop causing further damage to the nut. Use a 6 pt box end or 6 pt ratcheting dog bone.
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Old Jun 19, 2020 | 03:54 PM
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Those are the tougher ones to get out. I had to use a torch on mine, and even then the squealed like crazy coming loose.
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Old Dec 15, 2023 | 10:37 AM
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I just encountered this same nut, and boy is it nuts to try to get off. I tried every socket known to man, every wrench known to man, even made my own socket, eventually destroying the nut. The only thing that got it loose was torching it with a MAP gas torch to red hot, letting it cool (no idea if this even helped) then taking this air hammer, with the included chisel bit, and coming up from the rear by the square support bar and pushing upwards against the manifold and air hammering it loose until it spun. You must be really careful to protect the threads of the stud while doing this or you'll never get the nut off and you'll maybe never be able to get the stud out to replace it. You need a relatively long air hammer to be able to reach, but it worked, but it took HOURS to get to this point. Luckily, I had enough nut left to spin it loose the rest of the way using a 12 point ratcheting ratchet...what a mess.

Amazon Amazon

Ingersoll Rand Model 123MAX Short Barrel Air Hammer if the link ever disappears.



Last edited by carnate69; Dec 15, 2023 at 10:56 AM.
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Old Dec 15, 2023 | 01:27 PM
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Soak the nut/threads with PB blaster over night then use a high quality 6 point socket and it will come right off.
At least they have for me in the past.
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