Sheared Bolt - need help - SV650.org

DarrenSV650S · 09-12-06, 03:37 PM

How do you remove sheared bolts

09-12-06, 03:41 PM

Drill the middle and then use a left hand thread stud removing whatsit. Looks like a plug with a shallow LH thread on it.

09-12-06, 03:42 PM

Have you tried molegrips?

Failing that, try using a hacksaw to cut a groove in the centre of the bolt and then un-screwing it with a screwdriver or other such implement.

Also, a small amount of WD40 or squirted round the bolt works wonders.

Good luck dude.

Twoo

TSM · 09-12-06, 03:46 PM

Oooo. Can you get hold of a wealder? Weald a bar onto the end of the stud and remove.

09-12-06, 03:47 PM

With the amount protruding I'd defo give a pair of molegrips a shot!! ) if that doesn't work you are down to a drill and some of these http://cgi.ebay.co.uk/5pc-stud-screw...QQcmdZViewItem

I don't really like using them as if they break off in there you are totally screwed as you can't drill it!!

Your final option is just to drill it out and either fit a slightly bigger stud, or 'helicol' a new thread in there of the same size. Helecoil sets are dear, so I'd go for a slightly bigger stud and a tap route.

I think you stand a good chance with the moleys though

09-12-06, 03:50 PM

They're the things I mean! They are good but like Blue_ says you have to feel as you do it so you don't overdo them. They pretty brittle!

09-12-06, 03:51 PM

Quote:

Originally Posted by TSM

Oooo. Can you get hold of a wealder? Weald a bar onto the end of the stud and remove.

Or weld nut on there and use a spanner ... else you will only have to cut the bar off after a millionth of a turn and still have a stud to remove

DarrenSV650S · 09-12-06, 03:59 PM

Thanks for all your help. I initially tried using grips but they just slipped. The problem is that I think the bolt is cross threaded because when I was removing it, it seemed to be at a slight angle and was extremely tight compared to the other bolt. I've got a pair of ancient mole grips so I'll give that a try.

TSM · 09-12-06, 04:05 PM

Quote:

Originally Posted by Blue_SV650S

Quote:

Originally Posted by TSM

Oooo. Can you get hold of a wealder? Weald a bar onto the end of the stud and remove.

Or weld nut on there and use a spanner ... else you will only have to cut the bar off after a millionth of a turn and still have a stud to remove

Ahh, yep,thats a better idea.

09-12-06, 04:06 PM

Quote:

Originally Posted by DarrenSV650S

Thanks for all your help. I initially tried using grips but they just slipped. The problem is that I think the bolt is cross threaded because when I was removing it, it seemed to be at a slight angle and was extremely tight compared to the other bolt. I've got a pair of ancient mole grips so I'll give that a try.

as a tip, if the mole grip jaws are wider than the stud, then get another stud/bolt and put it end to end with the one you want to remove ... this will prevent the molegrips from 'angling' and then just rounding off. Make sense?

Oh and use a blowtorch to head the alli around the stud first, the alli will expand quicker than the stud and therefore might give you that little bit you need

Have to say though, it is looking like Mr Drill is going to be visiting a engine near you soon

09-12-06, 03:37 PM	#1
DarrenSV650S Member Mega Poster Join Date: Jul 2006 Location: Dundee Posts: 4,414	Sheared Bolt - need help How do you remove sheared bolts

09-12-06, 03:46 PM	#4
TSM The Sick Man Mega Poster Join Date: Nov 2004 Location: Peckham.SE.LDN Posts: 4,768	Oooo. Can you get hold of a wealder? Weald a bar onto the end of the stud and remove. __________________ OTR: KTM 690 Duke R 2015 Full Akro SIDELINE: Kwak ZX636 A1P 2002, Red, R&G's, Yoshi, Double Bubble Screen GONE: Kwak ZX-7R P1, Full Akro, Undertray, Screen GONE: SV650S K2 Very Bruised & Without Fairing, Motovation Frame Sliders, R&G Ally Sprocket Toe Protector, HEL 2 Line Setup, GSXR K1 600 RWU Forks, Barnett Clutch & Springs, Penske 8981 Shock, Gilles Ti Rearsets, Steel Barends, Scottoiler, AFAM Chain & Sprockets, Twin FIAMM Horns, Skidmarx Bellypan, Full Micron Zeta Steel System, Cut down undertay. Forum Problems & Information / Site Suggestions

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09-12-06, 03:41 PM	#2
furrybean Guest Posts: n/a	Drill the middle and then use a left hand thread stud removing whatsit. Looks like a plug with a shallow LH thread on it.

09-12-06, 03:42 PM	#3
twosizes Guest Posts: n/a	Have you tried molegrips? Failing that, try using a hacksaw to cut a groove in the centre of the bolt and then un-screwing it with a screwdriver or other such implement. Also, a small amount of WD40 or squirted round the bolt works wonders. Good luck dude. Twoo

09-12-06, 03:47 PM	#5
Blue_SV650S Guest Posts: n/a	With the amount protruding I'd defo give a pair of molegrips a shot!! ) if that doesn't work you are down to a drill and some of these http://cgi.ebay.co.uk/5pc-stud-screw...QQcmdZViewItem I don't really like using them as if they break off in there you are totally screwed as you can't drill it!! Your final option is just to drill it out and either fit a slightly bigger stud, or 'helicol' a new thread in there of the same size. Helecoil sets are dear, so I'd go for a slightly bigger stud and a tap route. I think you stand a good chance with the moleys though

09-12-06, 03:50 PM	#6
furrybean Guest Posts: n/a	They're the things I mean! They are good but like Blue_ says you have to feel as you do it so you don't overdo them. They pretty brittle!

09-12-06, 03:59 PM	#8
DarrenSV650S Member Mega Poster Join Date: Jul 2006 Location: Dundee Posts: 4,414	Thanks for all your help. I initially tried using grips but they just slipped. The problem is that I think the bolt is cross threaded because when I was removing it, it seemed to be at a slight angle and was extremely tight compared to the other bolt. I've got a pair of ancient mole grips so I'll give that a try.