Exhaust stud bolts - SV650.org

Geodude · 19-01-11, 01:25 PM

After reading the hastle that Dan (Barwel) has gone through with his exhaust stud/nuts i thought i would look mine over and this is what i found

So is this corrosion of the nuts? Both sides are in this state. What is left of the nuts doesnt look good so am i looking at a real PITA if i need to take the exhaust off in ther near future?

19-01-11, 01:32 PM

Mine looked like that, managed to hammer a socket onto them to get them off, actually the whole stud came out with the nuts still siezed on and I replaced them with stainless bolts.

timwilky · 19-01-11, 01:34 PM

Invest in a tin of penetrating oil (plus gas etc.) and a decent 6 side flat wall drive socket.

Regularly soak in the penetrating oil and after a week try cracking them, when you do not need the bike for a while (just in case the studs fail).

Otherwise, try either a nut splitter or angle grinder to remove the nuts and then dress the threads by running a die down.

TamSV · 19-01-11, 01:40 PM

I'd be a bit wary of shearing off the stud. I think I'd just get straight into that with the drill. Carefully drill out one side of the bolt and it should then just spin off quite easily. A nut splitter tool would presumably work too, although I've never used one of those.

You can then get the collar off and remove the studs with a socket type stud extractor. Replace with stainless items and plenty of copperslip.

If I didn't need the exhaust off, I'd leave it alone.

19-01-11, 01:45 PM

Quote:

Originally Posted by TamSV

I'd be a bit wary of shearing off the stud. I think I'd just get straight into that with the drill. Carefully drill out one side of the bolt

I think you mean nut.

svsam · 19-01-11, 01:55 PM

i'de look into getting a nut extractor set, always a handy tool to have round grubby nuts.

TamSV · 19-01-11, 02:05 PM

Quote:

Originally Posted by benji106

I think you mean nut.

Doh! Schoolboy error.

Yes, I meant the nut. Typing without brain engaged.

Sid Squid · 19-01-11, 02:18 PM

Don't even try to undo them, get a hacksaw blade and wrap a few turns of tape around one end, then cut one side off of the nut - cut parallel to the axis of the stud. Try to cut along the surface of the thread, as close as you can so as to remove as much of the nut as you can, it won't matter if you nick the threads a bit but try to keep it to a minimum.
When you've cut right through and removed a section of the nut, using a suitable rod as a drift tap the nut - and I mean tap, don't lean on it any harder than you need to - in the direction required to undo it, it won't be gripping the stud very hard anymore, and a little tap should see it start to move.

I really mean this - don't try to undo exhaust nuts that are even stiff to turn, cut them off. The various threads on here detailing how trying to undo the nuts attest to how easy it is to break the studs, and what a pain it is if you do.
I've never broken an exhaust stud and I've been required to remove some really rusty crud in the past - this works.

Geodude · 19-01-11, 02:27 PM

Thanks for all replies so far you guys are the best. Cheers Sid that sounds like a plan

andrewsmith · 19-01-11, 03:05 PM

Geo that looks like fun.

I'd to what Sid specced, I'm able to get mine off with a 6 side socket (and penetrating oil) and they're siezed.
4 stainless steel nuts are £8 on Westgate Rd, the studs are a few quid each

19-01-11, 01:25 PM	#1
Geodude Member Mega Poster Join Date: Jun 2009 Location: Durham Posts: 2,675	Exhaust stud bolts After reading the hastle that Dan (Barwel) has gone through with his exhaust stud/nuts i thought i would look mine over and this is what i found So is this corrosion of the nuts? Both sides are in this state. What is left of the nuts doesnt look good so am i looking at a real PITA if i need to take the exhaust off in ther near future? __________________ Black naked 1999 sv650 which im trying to keep happy Custom paintwork *Saragon Customs* Spray painting *Electrical fault finding guide* and *Regulator rectifier test* Only a biker knows why a dog sticks his head out of a car window.

19-01-11, 01:32 PM	#2
benji106 Guest Posts: n/a	Re: Exhaust stud bolts Mine looked like that, managed to hammer a socket onto them to get them off, actually the whole stud came out with the nuts still siezed on and I replaced them with stainless bolts.

19-01-11, 01:34 PM	#3
timwilky Member Mega Poster Join Date: Mar 2004 Location: Not in Yorkshire. (Thank God) Posts: 4,116	Re: Exhaust stud bolts Invest in a tin of penetrating oil (plus gas etc.) and a decent 6 side flat wall drive socket. Regularly soak in the penetrating oil and after a week try cracking them, when you do not need the bike for a while (just in case the studs fail). Otherwise, try either a nut splitter or angle grinder to remove the nuts and then dress the threads by running a die down. __________________ Not Grumpy, opinionated.

19-01-11, 01:40 PM	#4
TamSV Member Mega Poster Join Date: Feb 2010 Location: Troon, Ayrshire Posts: 1,812	Re: Exhaust stud bolts I'd be a bit wary of shearing off the stud. I think I'd just get straight into that with the drill. Carefully drill out one side of the bolt and it should then just spin off quite easily. A nut splitter tool would presumably work too, although I've never used one of those. You can then get the collar off and remove the studs with a socket type stud extractor. Replace with stainless items and plenty of copperslip. If I didn't need the exhaust off, I'd leave it alone.

19-01-11, 01:55 PM	#6
svsam Member Join Date: Jun 2010 Location: Shropshire Posts: 195	Re: Exhaust stud bolts i'de look into getting a nut extractor set, always a handy tool to have round grubby nuts. __________________ SL0 jack up kit-yoshimura can-tial tidy-(so far)

19-01-11, 02:18 PM	#8
Sid Squid No, I don't lend tools. Mega Poster Join Date: Jul 2003 Location: Skunk Works, Nth London Posts: 8,680	Re: Exhaust stud bolts Don't even try to undo them, get a hacksaw blade and wrap a few turns of tape around one end, then cut one side off of the nut - cut parallel to the axis of the stud. Try to cut along the surface of the thread, as close as you can so as to remove as much of the nut as you can, it won't matter if you nick the threads a bit but try to keep it to a minimum. When you've cut right through and removed a section of the nut, using a suitable rod as a drift tap the nut - and I mean tap, don't lean on it any harder than you need to - in the direction required to undo it, it won't be gripping the stud very hard anymore, and a little tap should see it start to move. I really mean this - don't try to undo exhaust nuts that are even stiff to turn, cut them off. The various threads on here detailing how trying to undo the nuts attest to how easy it is to break the studs, and what a pain it is if you do. I've never broken an exhaust stud and I've been required to remove some really rusty crud in the past - this works. __________________ If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing. "a deathless anthem of nuclear-strength romantic angst"

19-01-11, 02:27 PM	#9
Geodude Member Mega Poster Join Date: Jun 2009 Location: Durham Posts: 2,675	Re: Exhaust stud bolts Thanks for all replies so far you guys are the best. Cheers Sid that sounds like a plan __________________ Black naked 1999 sv650 which im trying to keep happy Custom paintwork *Saragon Customs* Spray painting *Electrical fault finding guide* and *Regulator rectifier test* Only a biker knows why a dog sticks his head out of a car window.

19-01-11, 03:05 PM	#10
andrewsmith Member Mega Poster Join Date: Apr 2010 Location: Newcastle upon Tyne, Just south of salad dodging country Posts: 7,750	Re: Exhaust stud bolts Geo that looks like fun. I'd to what Sid specced, I'm able to get mine off with a 6 side socket (and penetrating oil) and they're siezed. 4 stainless steel nuts are £8 on Westgate Rd, the studs are a few quid each __________________ RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi

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