Exhaust studs and nut replacment.

[Crashbarsreqd]

Hi. This is my first time on a forum so please excuse any error.
The exhaust pipe studs and nuts are pretty rusted on my 2014 tenere and I'd like to replace them. The problem is I'm having a hard time finding the studs and nuts online and I'm also a little freaked out that the studs might break upon removal, but if I let the corrosion continue they certainly will break in the future. I guess I'm hoping someone can help me find the hardware and help with the proper procedure for removing the studs. And I assume I need to replace the exhaust gaskets as well. Thanks in advance for any help.

 

[ballisticexchris]

If it's not leaking I would recommend cleaning the area with a wire brush and brush some Navel Jelly on it. Let it soak for 30 minutes or so and rinse off. Repeat if needed. Then clean off with rubbing alcohol. At that point, tape it off below the flange and spray a few coats with some high temp black paint.

 

[Jlq1969]

Hi. This is my first time on a forum so please excuse any error.
The exhaust pipe studs and nuts are pretty rusted on my 2014 tenere and I'd like to replace them. The problem is I'm having a hard time finding the studs and nuts online and I'm also a little freaked out that the studs might break upon removal, but if I let the corrosion continue they certainly will break in the future. I guess I'm hoping someone can help me find the hardware and help with the proper procedure for removing the studs. And I assume I need to replace the exhaust gaskets as well. Thanks in advance for any help. View attachment 64216

The first thing to try is with two nuts, well tightened between them and then you turn the inside one, a lot of lubricating spray, without exerting too much force, to avoid cutting. If you manage to loosen it, you won't ruin the thread and you can keep using that stud

 

[Jlq1969]

But as Chris says, I would start cleaning. Trying to get the stud out can be dangerous. That the next user tries to remove it, when next year, you change 2014 for the new 2021 S10 1300cm3 185hp

 

[EricV]

Welcome to the forum. If you put your location in your profile it will help others give you better answers in terms of where to source new studs. It also gives context to your posts later on other subjects.

Yes, you will need to replace the exhaust gaskets if you separate the headers from the engine. And it will be a lot easier to replace the studs if you remove the exhaust pipes first.

The exhaust gasket is: Gasket, Exhaust Pipe, P/N 4FM-14613-00-00 (2 needed)

The nuts are: Nut, P/N 90179-08410-00 (you need 4)

The studs are: Bolt, Stud, P/N 95612-08625-00

None of these are very expensive from US vendors like www.PartShark.com, but not knowing where in the world you are, I can't offer a good source for you. The studs and nuts can also be sourced from a high quality hardware or automotive source. They are fairly normal metric fasteners if you know the correct size. I do not have a Super Ten at this time, so can't measure them.

I would suggest you clean the exhaust nuts/stud ends as Chris has suggested first. Then soak them in penetrating oil from an aerosol can and let them sit for an hour before attempting to loosen the nuts. Most likely the nuts will come off fine with this process. Don't get in a hurry and try not to apply excessive force, but sometimes things do break. Hope for the best, prepare for the worst.

Once you have the header/exhaust pipes off, you should be able to soak the threads to the cylinder head with penetrating oil and let them sit for an hour or so. then apply some heat from a propane torch to the base of each stud. You're not trying to melt anything! Just get some heat to the stud to loosen the thread locking compound. You don't want the studs glowing or anything, just moderately hot.

At this point, the double nut technique that Jiq1969 suggested is an excellent method to start with. If one won't move, stop, re-apply penetrating oil and some low heat and let sit again before trying once more.

Once you have the studs out, if you are going to try to source replacement studs and nuts locally, take a stud and nut with you to the hardware or automotive store and you should have no problem finding matching replacements. Tell whom ever is helping you that you are using them for exhaust manifold studs so they know what to best offer you.

When you install the new studs, use the same double nut technique to thread them in tight.

 

[Cycledude]

To me They don’t look like they are in danger of rusting off very soon, I recommend just doing a good job cleaning them.
Where are you located ? What’s causing the rust ?
Spraying them with penetrating oil and waiting an hour is a good idea but spraying them a little everyday for a few days will probably work even better

 

[yoyo]

The nuts and studs on my 2016 look very similar, I always thought I had applied more than enough ACF50 but clearly not. I did try to remove the nuts and came off easily enough, I've replaced them now and will remove them and paint the studs when I paint the engine later in the year.

Sent from my ELE-L29 using Tapatalk

 

[Crashbarsreqd]

The wisdom and info is much appreciated. Especially EricV. very helpful. I'm in north west georgia, but I bought the bike from a guy in DC so I assume road salt is the issue. I've cleaned up the vast majority of corrosion and could just clean up the studs and paint them, but this bike is begging for 100,000 miles and I must oblige, so I got to fix it up the right way. Thanks again guys and I will update when completed.