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Drilling imperial thread to metric (Swing arm)
http://www.ukbeg.com/forum/viewtopic.php?f=8&t=22436
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Author:  DukeofTed [ Thu Jun 22, 2017 6:16 pm ]
Post subject:  Drilling imperial thread to metric (Swing arm)

Hello All,

So, as I previously mentioned on the facebook group, I was installing the swing arm brace back onto my XB12S the other week and I have stripped a thread when putting the longest bolt in.

It was recommended that it should be repaired with a helicoil or timesert.

I have spoken to a few local bike places and none of them can fix an imperial thread.

They have suggested it could be drilled to the next metric size and then repaired with a thread insert and obviously a metric bolt.

What are people's thoughts on this? Will it do the job and allow me to get using the bike again?

Cheers,

Author:  Maz [ Thu Jun 22, 2017 6:29 pm ]
Post subject:  Re: Drilling imperial thread to metric (Swing arm)

Imperial helicoils are readily available.

Author:  kevmean [ Thu Jun 22, 2017 6:43 pm ]
Post subject:  Re: Drilling imperial thread to metric (Swing arm)

:yt: What Maz said , imperial thread repair kits are available, I'm guessing the guys you have asked are either lazy or stupid and can't count past ten so don't understand imperial sizes ;) it is always best to keep threads the original size if possible as it prevents later confusion.

Author:  DukeofTed [ Thu Jun 22, 2017 7:22 pm ]
Post subject:  Re: Drilling imperial thread to metric (Swing arm)

I believe the issue is that they don't have the correct size drill bits, tap and die sets etc.

Author:  Maz [ Thu Jun 22, 2017 7:56 pm ]
Post subject:  Re: Drilling imperial thread to metric (Swing arm)

Just buy yourself a kit, they're not expensive and it sounds like you will probably need it in future !

Author:  pash [ Thu Jun 22, 2017 7:58 pm ]
Post subject:  Re: Drilling imperial thread to metric (Swing arm)

It is 5/16 UNC

Here you go...

http://www.ebay.co.uk/itm/5-16-UNC-Heli ... 1677426254

I smell laziness on their part...

Author:  Nutah [ Thu Jun 22, 2017 9:28 pm ]
Post subject:  Re: Drilling imperial thread to metric (Swing arm)

Image

get a book of Zeus tables...i got one during my apprenticeship
always a handy help reference
i still have them 30 plus years later :mrgreen:

Author:  spondon440 [ Fri Jun 23, 2017 11:33 am ]
Post subject:  Re: Drilling imperial thread to metric (Swing arm)

I went to buy plugs for the spider at a large independent parts shop near me, 4 NGK B7ES plugs please, whats the reg number mate :? what do you need that for pal I just need B7ES plugs they will be on that wall behind you :? gives the dick the reg and he says sorry mate its too old and not listed, fuck off says I and I left.
The world or at least the UK is just full of bone idle pricks.

Andy

Author:  rik [ Fri Jun 23, 2017 12:10 pm ]
Post subject:  Re: Drilling imperial thread to metric (Swing arm)

spondon440 wrote:
I went to buy plugs for the spider at a large independent parts shop near me, 4 NGK B7ES plugs please, whats the reg number mate :? what do you need that for pal I just need B7ES plugs they will be on that wall behind you :? gives the dick the reg and he says sorry mate its too old and not listed, fuck off says I and I left.
The world or at least the UK is just full of bone idle ignorant pricks.

Andy

:yt: (amended for accuracy ;) )

Author:  Adam [ Fri Jun 23, 2017 12:14 pm ]
Post subject:  Re: Drilling imperial thread to metric (Swing arm)

The Recoil kits I buy have an appropriate drill bit in them.

Author:  brother in buells [ Fri Jun 23, 2017 1:21 pm ]
Post subject:  Re: Drilling imperial thread to metric (Swing arm)

spondon440 wrote:
I went to buy plugs for the spider at a large independent parts shop near me, 4 NGK B7ES plugs please, whats the reg number mate :? what do you need that for pal I just need B7ES plugs they will be on that wall behind you :? gives the dick the reg and he says sorry mate its too old and not listed, fuck off says I and I left.
The world or at least the UK is just full of bone idle pricks.

Andy


Some shops even can't look up the parts in their magazine if they don't have a reg number.
Everything goes by computer these day's and using a couple brain cells is not standart anymore!

There are enough times that i sowed them the part i needed ,and they don't know what it was. :sad1:

Author:  brother in buells [ Fri Jun 23, 2017 1:58 pm ]
Post subject:  Re: Drilling imperial thread to metric (Swing arm)

Buell XB Bolt for Swingarm Brace , 5/16-18 x 2.75 gr8 Frame, Screw, 5/16-18 X 2-3/4
https://www.twinmotorcycles.nl/webshop/ ... C&aid=3033

http://www.ebay.com/itm/Time-Sert-0561- ... SwN81XNd9g

It is a bit expensive for only one repair ,but it is the only way to do it the right way.

Author:  DukeofTed [ Sat Jun 24, 2017 9:15 am ]
Post subject:  Re: Drilling imperial thread to metric (Swing arm)

pash wrote:
It is 5/16 UNC

Here you go...

http://www.ebay.co.uk/itm/5-16-UNC-Heli ... 1677426254

I smell laziness on their part...


Cheers, I've just ordered one.

I'm tempted to give the repair a go myself rather than waste more time with bike shops. I was put off the idea of doing this myself because I don't really trust myself to take a drill to my swing arm...

Author:  pash [ Sat Jun 24, 2017 11:03 am ]
Post subject:  Re: Drilling imperial thread to metric (Swing arm)

DukeofTed wrote:
pash wrote:
It is 5/16 UNC

Here you go...

http://www.ebay.co.uk/itm/5-16-UNC-Heli ... 1677426254

I smell laziness on their part...


Cheers, I've just ordered one.

I'm tempted to give the repair a go myself rather than waste more time with bike shops. I was put off the idea of doing this myself because I don't really trust myself to take a drill to my swing arm...

Get a mate to help

Author:  DukeofTed [ Thu Jul 13, 2017 9:12 pm ]
Post subject:  Re: Drilling imperial thread to metric (Swing arm)

Thanks to the excellent help on this forum I have got my bike back on the road!

Bought that thread repair kit. Me and a mate had a few beers to steady us and started driling. Swing arm brace is now in place and MOT passed.

:yup:

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