How do these work - SV650.org

Stilo · 21-11-17, 05:22 PM

OK call me stupid.

I bought these stud extractors, they didn't have any instructions & I can't work out how to use them. I e,mailed the manufacturers but whilst they were happy to take my money they have not been so forthcoming with help.
There are 4 installers & 4 extractors, has anybody any idea how to use the extractor?

http://www.bergentoolsdirect.co.uk/p...ller-set-5809/

Thanks

Bibio · 21-11-17, 05:37 PM

if they are what i think they are you just pop the socket onto the stud and turn it. the concentric bearing inside grips the wall of the stud and tightens up as you turn. TBH they are fine for 'good' studs but not that good for rusted/seized ones.

two nuts tightened against each other work just as well.

Stilo · 23-11-17, 08:37 AM

Quote:

Originally Posted by Bibio

if they are what i think they are you just pop the socket onto the stud and turn it. the concentric bearing inside grips the wall of the stud and tightens up as you turn. TBH they are fine for 'good' studs but not that good for rusted/seized ones.

two nuts tightened against each other work just as well.

Thanks
There is not enough of the stud left to get 2 nuts onto or else I would have tried that first. I bought these extractors as the access is restricted (left hand exhaust clamp stud on the front cylinder) & they are slim enough to go over the stud .
Onto plan B what ever that might be

SV650rules · 23-11-17, 08:42 AM

Bit of local heat works well with steel screwed into aluminium, the the aluminium expands more than the steel and takes pressure away from the steel thread.

R1ffR4ff · 23-11-17, 12:09 PM

Quote:

Originally Posted by SV650rules

Bit of local heat works well with steel screwed into aluminium, the the aluminium expands more than the steel and takes pressure away from the steel thread.

That's why I keep one of these handy,

https://www.ebay.co.uk/itm/Jet-Nozzl...EAAOSwn5RZjqUI

Absolute boon for these jobs.Ultra directional

£6.95 ish.

Stilo · 23-11-17, 03:15 PM

Quote:

Originally Posted by SV650rules

Bit of local heat works well with steel screwed into aluminium, the the aluminium expands more than the steel and takes pressure away from the steel thread.

Thanks I was hoping to heat the stud up and then use the extractor on it while it was still hot

Stilo · 22-01-18, 08:07 PM

Finally got the stud out, I took the engine to a local engineering company who puddle welded (mig) a larger size nut onto the M8 stud. Then while it was still warm loosened/tightened the stud bit by bit until it came out nice and clean. Stainless steel replacement sourced.
It was a lot of faffing about but all's well etc.etc.
Lesson learnt, be more wary and/or less clumsy then the next time i need to take one out.

maviczap · 24-01-18, 09:32 PM

They're very easy to snap, even with care

21-11-17, 05:22 PM	#1
Stilo Member Join Date: Jan 2017 Location: Creaton Sunny Northamptonshire Posts: 290	How do these work OK call me stupid. I bought these stud extractors, they didn't have any instructions & I can't work out how to use them. I e,mailed the manufacturers but whilst they were happy to take my money they have not been so forthcoming with help. There are 4 installers & 4 extractors, has anybody any idea how to use the extractor? http://www.bergentoolsdirect.co.uk/p...ller-set-5809/ Thanks __________________ He was a hairy handed Gent who ran amok in Kent Awhooo

21-11-17, 05:37 PM	#2
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,540	Re: How do these work if they are what i think they are you just pop the socket onto the stud and turn it. the concentric bearing inside grips the wall of the stud and tightens up as you turn. TBH they are fine for 'good' studs but not that good for rusted/seized ones. two nuts tightened against each other work just as well.

23-11-17, 08:42 AM	#4
SV650rules Member Mega Poster Join Date: Nov 2016 Location: Shropshire UK Posts: 1,363	Re: How do these work Bit of local heat works well with steel screwed into aluminium, the the aluminium expands more than the steel and takes pressure away from the steel thread. __________________ 2016 SV650 AL7 Courage is resistance to fear, mastery of fear, not absence of fear - Mark Twain

22-01-18, 08:07 PM	#7
Stilo Member Join Date: Jan 2017 Location: Creaton Sunny Northamptonshire Posts: 290	Re: How do these work Finally got the stud out, I took the engine to a local engineering company who puddle welded (mig) a larger size nut onto the M8 stud. Then while it was still warm loosened/tightened the stud bit by bit until it came out nice and clean. Stainless steel replacement sourced. It was a lot of faffing about but all's well etc.etc. Lesson learnt, be more wary and/or less clumsy then the next time i need to take one out. __________________ He was a hairy handed Gent who ran amok in Kent Awhooo

24-01-18, 09:32 PM	#8
maviczap Member Mega Poster Join Date: Mar 2007 Posts: 9,096	Re: How do these work They're very easy to snap, even with care __________________ We're riding out tonight to case the promised land Make everyday count RIP Reeder - Jolly Green Giant and comedy genius

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