re tapping exhaust lug - Page 2 - SV650.org

16-01-11, 10:03 PM

Quote:

Originally Posted by yorkie_chris

I know I said bolt above, but I prefer studs, stronger for same engagement and easier to remove if they are seized

i have already ordered some 45mm long bolts to cut down to studs and got some bras nuts coming as well

yorkie_chris · 16-01-11, 10:05 PM

It is worth finding your local nut and bolt place, online can be very pricey for what for me is usually "ah give us 50p mate, be right"

16-01-11, 10:13 PM

Quote:

Originally Posted by yorkie_chris

It is worth finding your local nut and bolt place, online can be very pricey for what for me is usually "ah give us 50p mate, be right"

yeh i agree i have looked before but not found any where that sells the sort of thing im usually after, i can get most steel stuf from college free but not SS as all the stuf they use are steel or NAS bolts

Spanner Man · 17-01-11, 07:46 AM

Good morning all.

It is indeed an M8 x 1.25mm thread, & I would use a helicoil.

The down side with usung a cut down bolt as a stud is that, there's nothing to stop the 'stud' bottoming out in the hole. Whereas a proper exhaust stud has a plain section that stops the stud going deeper into the hole, thereby allowing you to tighten it before spinning the retaining nut on. Use some good quality copperslip on the stud & you'll have no trouble removing it should the need arise sometime in the future.

Cheers.

andrewsmith · 17-01-11, 07:58 AM

Coming in slightly late

Ain't the curvy studs the correct size and pitch into the heads?

16-01-11, 10:05 PM	#12
yorkie_chris Noisy Git Mega Poster Join Date: Apr 2007 Location: Halifax/Leeds Posts: 26,645	Re: re tapping exhaust lug It is worth finding your local nut and bolt place, online can be very pricey for what for me is usually "ah give us 50p mate, be right" __________________ Currently Ex Biker Now rebuilding a 63' fishing trawler as a dive boat

17-01-11, 07:46 AM	#14
Spanner Man Member Mega Poster Join Date: May 2005 Location: Sunbury Middlesex Posts: 1,396	Re: re tapping exhaust lug Good morning all. It is indeed an M8 x 1.25mm thread, & I would use a helicoil. The down side with usung a cut down bolt as a stud is that, there's nothing to stop the 'stud' bottoming out in the hole. Whereas a proper exhaust stud has a plain section that stops the stud going deeper into the hole, thereby allowing you to tighten it before spinning the retaining nut on. Use some good quality copperslip on the stud & you'll have no trouble removing it should the need arise sometime in the future. Cheers. __________________ Spanner Man http://stewarts-motorcycles.co.uk/default.html

17-01-11, 07:58 AM	#15
andrewsmith Member Mega Poster Join Date: Apr 2010 Location: Newcastle upon Tyne, Just south of salad dodging country Posts: 7,750	Re: re tapping exhaust lug Coming in slightly late Ain't the curvy studs the correct size and pitch into the heads? __________________ 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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