seized stud

jonela · 27-02-2018, 12:17

My truck is off the road at the moment, so I have been re building another Bike. A Yamaha XV 535 and I am struggling getting two of the exhaust studs out . Two came out willingly the other two are well and truly stuck. I have tried heating with a blow lamp, only managed to snap one off, Tried welding a nut on won't budge and the other will snap I fear,well soaked with penetrating oil !
Anybody got any good ideas as to how to get them out ?

jonela · 27-02-2018, 12:19

the other one

Blocky10 · 27-02-2018, 13:31

Ricks your man for this I reckon. I bet he's got some concoction of fluids he uses.

I would have done what you've already done then started drilling

jonela · 27-02-2018, 15:47

Quote:

Originally Posted by Blocky10

Ricks your man for this I reckon. I bet he's got some concoction of fluids he uses.

I would have done what you've already done then started drilling

This is true, I usually just pm him, but I thought I would give the rest of you a chance lol

terranosaurusdoug · 27-02-2018, 16:42

Try freezing it....
https://youtu.be/rljUld-ptvI

Thomas61 · 27-02-2018, 17:24

Hi,

Never tried this or know what damage it could cause but stumbled across this thread a while back.

http://www.nissan4x4ownersclub.com/f...highlight=piss

terranosaurusdoug · 27-02-2018, 17:38

Quote:

Originally Posted by Thomas61

Hi,

Never tried this or know what damage it could cause but stumbled across this thread a while back.

http://www.nissan4x4ownersclub.com/f...highlight=piss

In this thread Rick says cellulose thinners is good for ali corrosion, I presume the head/cooling fins etc. is ali?

jonela · 27-02-2018, 17:40

Quote:

Originally Posted by terranosaurusdoug

Try freezing it....
https://youtu.be/rljUld-ptvI

great trick, ideal for fitting bearings,but I think the cold would make it more brittle and more prone to snaping

terranosaurusdoug · 27-02-2018, 18:04

Quote:

Originally Posted by jonela

great trick, ideal for fitting bearings,but I think the cold would make it more brittle and more prone to snaping

It may break the seal so to speak, like heating (which I know you've tried), it's the corrosion betwixt steel and ali that has probably fused the bolt to the head!

Terrano Steve · 27-02-2018, 20:20

http://www.nissan4x4ownersclub.com/f...ad.php?t=27471
I have had a lot of success welding nuts on to broken studs to remove them, unfortunately I no longer have the pictures they were on photo bucket. I have removed them from various castings gearboxes transfer boxes etc & I have removed them from alloy heads & manifolds as well.
It doesn't always work on the first attempt especially if you have a bit of stud sticking out as the heat doesn't get in to the thread.

solarman216 · 27-02-2018, 20:25

Not sure what your head is made of but be wary of freezing it locally as it could crack it, if Ali cellulose thinners, if iron repeated heating and cooling with penetrating oil, as it cools if flooded with oil the oil gets drawn into the threads, also holding the head in your hand (to avoid shock damage) strike the end of the stud with a light hammer several times as well as the heat or thinners treatment, Rick

Terrano Steve · 27-02-2018, 20:36

For the one in your second picture which looks to have broken below the surface of the barrel you can build up with weld exactly as I did in the post I have linked above, once you have it flush with the surface you can weld a washer to it if it is easier than using a nut.
Keep the welder turned up lots of heat & short bursts be careful where you earth & don't let any weld splatter get inside.

27-02-2018, 20:25	#11
solarman216 Off road maniac Join Date: Dec 2009 Location: Bexhill on Sea Vehicle: Y60 Patrol Me, 3 ltr Mrs Posts: 17,432	Not sure what your head is made of but be wary of freezing it locally as it could crack it, if Ali cellulose thinners, if iron repeated heating and cooling with penetrating oil, as it cools if flooded with oil the oil gets drawn into the threads, also holding the head in your hand (to avoid shock damage) strike the end of the stud with a light hammer several times as well as the heat or thinners treatment, Rick __________________ Ex banger racer now off road maniac Lokka on the front with manual hubs Diff lock on rear 3 inch SS straight through exhaust Manly winch bumper with 13000 lb winch 10 spike ground anchor, with multiple straps and blocks Super strong body cills capped with scaffold pole 20% stronger springs all round aggressive off road tyres on wheels so just swap. Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare.

27-02-2018, 13:31	#3
Blocky10 Senior Member Join Date: Mar 2014 Location: Welcome to Norwich, a fine city Vehicle: 2004 Terrano 3.0 SVE Auto Posts: 3,601	Ricks your man for this I reckon. I bet he's got some concoction of fluids he uses. I would have done what you've already done then started drilling

27-02-2018, 16:42	#5
terranosaurusdoug Senior Member Join Date: Sep 2014 Location: Yorkshire, J33 M62 Vehicle: 2000 Terrano lwb 2.7TDI Posts: 5,500	Try freezing it.... https://youtu.be/rljUld-ptvI

27-02-2018, 17:24	#6
Thomas61 Senior Member Join Date: Sep 2014 Location: Hampshire Vehicle: Terrano but now Honda CRV Posts: 658	Hi, Never tried this or know what damage it could cause but stumbled across this thread a while back. http://www.nissan4x4ownersclub.com/f...highlight=piss

27-02-2018, 20:20	#10
Terrano Steve Senior Member Join Date: Oct 2014 Location: South west Vehicle: Terrano Posts: 522	http://www.nissan4x4ownersclub.com/f...ad.php?t=27471 I have had a lot of success welding nuts on to broken studs to remove them, unfortunately I no longer have the pictures they were on photo bucket. I have removed them from various castings gearboxes transfer boxes etc & I have removed them from alloy heads & manifolds as well. It doesn't always work on the first attempt especially if you have a bit of stud sticking out as the heat doesn't get in to the thread.

27-02-2018, 20:36	#12
Terrano Steve Senior Member Join Date: Oct 2014 Location: South west Vehicle: Terrano Posts: 522	For the one in your second picture which looks to have broken below the surface of the barrel you can build up with weld exactly as I did in the post I have linked above, once you have it flush with the surface you can weld a washer to it if it is easier than using a nut. Keep the welder turned up lots of heat & short bursts be careful where you earth & don't let any weld splatter get inside.