Rusted exhaust nuts - Dremel? - SV650.org

30-06-14, 10:15 AM

Hi all, i have an issue most people probably have had with rusted exhaust bolts where it meets the engine block, i want to get them off but im not sure how, both rusty and rounded

ive read various things regarding this about heating the nut etc .... i was thinking why cant i just use a dremel and carefully cut the nut in half ? Sure after one cut i could prise it appart, there rusted anyway, one of them was a 12mm now is like a 10.5mm with it corroded like that surely it should give up fairly easily ?

Any thoughts appreciated

TamSV · 30-06-14, 10:49 AM

Yep. I drilled mine off, but much the same idea. They looked like twiglets so i didn't bother trying any non destructive methods.

jambo · 30-06-14, 11:21 AM

I have used a junior hacksaw for this, running down the length of the nut on one side, *just* touching the threads. When you have exposed the tip of the threads all the way down, give the cut faces of the nut a sharp tap with a drift and hammer and it should split on the now very wasted section, opening up slightly. You can then generally spin it off. No fuss, no snapped studs.

Having been shown this method by Mr Squid, I don't even bother with anything else unless they look in great condition. The pain of dealing with snapped studs is just not worth it.

Jambo

maviczap · 30-06-14, 01:23 PM

I used a dab of C4

keith_d · 30-06-14, 01:50 PM

Quote:

Originally Posted by maviczap

I used a dab of C4

A whole lot safer than that stuff the Americans supplied to the bike shop in Nagasaki.

I'll admit that a single application did get the nuts off the studs, but it vaporised the rest of the bike.

squirrel_hunter · 30-06-14, 08:12 PM

I've taken them off with Irwin sockets before. Replace the stud and the nut at the same time. After cutting the nut off there is likely to be damage to the stud anyway so its going to be stud extractors after if required.

jambo · 30-06-14, 09:48 PM

If you're careful the damage to the stud is a slight flattening of one face. Plenty of purchase left for the new nut.

Jambo

Sent without a real keyboard

30-06-14, 10:13 PM

Thanks all for the comments, will have a go at doing it on my next day off work

30-06-14, 10:15 AM	#1
reidy Guest Posts: n/a	Rusted exhaust nuts - Dremel? Hi all, i have an issue most people probably have had with rusted exhaust bolts where it meets the engine block, i want to get them off but im not sure how, both rusty and rounded ive read various things regarding this about heating the nut etc .... i was thinking why cant i just use a dremel and carefully cut the nut in half ? Sure after one cut i could prise it appart, there rusted anyway, one of them was a 12mm now is like a 10.5mm with it corroded like that surely it should give up fairly easily ? Any thoughts appreciated

30-06-14, 10:49 AM	#2
TamSV Member Mega Poster Join Date: Feb 2010 Location: Troon, Ayrshire Posts: 1,812	rusted exhaust manifold bolts ....., dremel ? Yep. I drilled mine off, but much the same idea. They looked like twiglets so i didn't bother trying any non destructive methods.

30-06-14, 11:21 AM	#3
jambo Member Mega Poster Join Date: Aug 2003 Location: Croydonia Posts: 5,376	Re: Rusted exhaust nuts - Dremel? I have used a junior hacksaw for this, running down the length of the nut on one side, just touching the threads. When you have exposed the tip of the threads all the way down, give the cut faces of the nut a sharp tap with a drift and hammer and it should split on the now very wasted section, opening up slightly. You can then generally spin it off. No fuss, no snapped studs. Having been shown this method by Mr Squid, I don't even bother with anything else unless they look in great condition. The pain of dealing with snapped studs is just not worth it. Jambo __________________ Modern motorcycles are bloody brilliant, enjoy it while we can

30-06-14, 01:23 PM	#4
maviczap Member Mega Poster Join Date: Mar 2007 Posts: 9,097	Re: Rusted exhaust nuts - Dremel? I used a dab of C4 __________________ We're riding out tonight to case the promised land Make everyday count RIP Reeder - Jolly Green Giant and comedy genius

30-06-14, 08:12 PM	#6
squirrel_hunter Member Mega Poster Join Date: Apr 2005 Location: Sunny Swindon Posts: 3,579	Re: Rusted exhaust nuts - Dremel? I've taken them off with Irwin sockets before. Replace the stud and the nut at the same time. After cutting the nut off there is likely to be damage to the stud anyway so its going to be stud extractors after if required. __________________ "A little enthusiastic?" May I add here, GG is awesome and I think I am in love with Stretchie...he rocks my world! SH2 \| 2MA \| GROM \| YSR

30-06-14, 09:48 PM	#7
jambo Member Mega Poster Join Date: Aug 2003 Location: Croydonia Posts: 5,376	Re: Rusted exhaust nuts - Dremel? If you're careful the damage to the stud is a slight flattening of one face. Plenty of purchase left for the new nut. Jambo Sent without a real keyboard __________________ Modern motorcycles are bloody brilliant, enjoy it while we can

30-06-14, 10:13 PM	#8
reidy Guest Posts: n/a	Re: Rusted exhaust nuts - Dremel? Thanks all for the comments, will have a go at doing it on my next day off work

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