Cycling Forums UK : www.veloriders.co.uk :: View topic - removing rounded expander bolt

Home FAQ Register Usergroups Search Memberlist Gallery StatisticsForum Sponsors •  Photo RequestProfile • Links Log in to check your private messagesLog inBC Eastmidlands

removing rounded expander bolt

 
Post new topic   Reply to topic    Cycling Forums UK : www.veloriders.co.uk Forum Index -> Tips & How To
View previous topic :: View next topic  
Author Message
special guest star
Div 1 Pro


Joined: 23 Oct 2003
Posts: 6939
Location: waiting to jump/going down with pedals on fire

PostPosted: Sat Jun 05, 2010 5:20 pm    Post subject: removing rounded expander bolt Reply with quote

Just been given quite a nice old skool frame to try and get back on the road

Can someone remind me the best way to get an expander bold with a rounded head out of an old ITM stem going into standard forks

I'd like the frame and forks to be intact after - so grinder is out! Not bothered about the stem
Back to top
View user's profile Send private message AIM Address MSN Messenger
pete1001
E, Silver


Joined: 13 May 2008
Posts: 798
Location: when in rome!

PostPosted: Sat Jun 05, 2010 6:31 pm    Post subject: Reply with quote

Just drill the bolt out from the top, and put a new star nut/expander in when you rebuild it.
_________________
...hating Dave Hinde Cycles since 2009
Back to top
View user's profile Send private message
Billynobrakes
Div 1 Pro


Joined: 30 Apr 2003
Posts: 7147
Location: Newark on Trent

PostPosted: Sat Jun 05, 2010 6:57 pm    Post subject: Reply with quote

pete1001 wrote:
Just drill the bolt out from the top, and put a new star nut/expander in when you rebuild it.


I'm guessing it's a quill stem?

If you drill out the bolt from the top the stem will seperate from the expander and you'll be able to remove both. It will however be a b1tch to drill the stainless steel!
_________________
Blame me for robbing Peter but don't you blame Paul
Back to top
View user's profile Send private message Visit poster's website
special guest star
Div 1 Pro


Joined: 23 Oct 2003
Posts: 6939
Location: waiting to jump/going down with pedals on fire

PostPosted: Sat Jun 05, 2010 8:30 pm    Post subject: Reply with quote

Billynobrakes wrote:
pete1001 wrote:
Just drill the bolt out from the top, and put a new star nut/expander in when you rebuild it.


I'm guessing it's a quill stem?

If you drill out the bolt from the top the stem will seperate from the expander and you'll be able to remove both. It will however be a b1tch to drill the stainless steel!


thanks for that - I kmow this is dumb but if the bolt is drilled wont the expanded bolt in the forks still be 'expanded' and therefore difficult to get out
Back to top
View user's profile Send private message AIM Address MSN Messenger
TBK
Div 3 Pro


Joined: 28 Oct 2003
Posts: 3984
Location: fighting the demons in my head........

PostPosted: Sat Jun 05, 2010 9:19 pm    Post subject: Reply with quote

special guest star wrote:
Billynobrakes wrote:
pete1001 wrote:
Just drill the bolt out from the top, and put a new star nut/expander in when you rebuild it.


I'm guessing it's a quill stem?

If you drill out the bolt from the top the stem will seperate from the expander and you'll be able to remove both. It will however be a b1tch to drill the stainless steel!


thanks for that - I kmow this is dumb but if the bolt is drilled wont the expanded bolt in the forks still be 'expanded' and therefore difficult to get out


Not if you have drilled out the bolt head! Just knock down whats left of the bolt and the wedge or cone will drop down with it, thats if it hasn't already fallen away by itself.
_________________
A positive mental attitude may not solve all your problems, but it will annoy enough people to make it worth the effort.
Back to top
View user's profile Send private message
pete1001
E, Silver


Joined: 13 May 2008
Posts: 798
Location: when in rome!

PostPosted: Sat Jun 05, 2010 9:27 pm    Post subject: Reply with quote

special guest star wrote:
Billynobrakes wrote:
pete1001 wrote:
Just drill the bolt out from the top, and put a new star nut/expander in when you rebuild it.


I'm guessing it's a quill stem?

If you drill out the bolt from the top the stem will seperate from the expander and you'll be able to remove both. It will however be a b1tch to drill the stainless steel!


thanks for that - I kmow this is dumb but if the bolt is drilled wont the expanded bolt in the forks still be 'expanded' and therefore difficult to get out


If it is just a case of the bolt having rounded off then as soon as it's gone there nothing holding the expander in place. The cone might fall out of the bottom of the expander straight away, or you might have to give it a gentle tap with a mallet and a screw driver or something. Either way, once the bolt's gone it should come out no problem.
You may find that there's some corrosion inside the steerer tube/expander, though. A bolt shouldn't round off with the amount of torque you put through it to lighten a headset. My bet would be it's seized in there, and whoever you got the frame from rounded it trying to budge the bolt. That makes life a bit more difficult....
_________________
...hating Dave Hinde Cycles since 2009
Back to top
View user's profile Send private message
Chrissylaa
E, Gold


Joined: 17 Apr 2009
Posts: 3382
Location: On a hillside desolate.

PostPosted: Sat Jun 05, 2010 9:47 pm    Post subject: Reply with quote

The bolt probably wont be stainless as this is not good material for bolts.

Drill through the bolt head with an 8mm drill and just tap the remainder of the bolt as you would if you had undone it.

It will come away no problem.

I have done this in the past.
_________________
And the senses being dulled are mine.
Back to top
View user's profile Send private message
eastway82
Div 3 Pro


Joined: 20 Nov 2006
Posts: 3965
Location: Normandy, France

PostPosted: Wed Jun 09, 2010 11:41 am    Post subject: Reply with quote

Before attacking it with a drill, might be worth seeing if you can wedge/hammer a slightly oversized Torx bit in there and get enough purchase to loosen it that way.
Alternatively, if you're not bothered about saving the stem, just saw through the damn thing, bolt included, leaving enough showing so you can get it in a vice if necessary to persuade it to move.
Back to top
View user's profile Send private message
Terry Tibbs
E, Gold


Joined: 06 Feb 2009
Posts: 3235

PostPosted: Wed Jun 09, 2010 12:45 pm    Post subject: Re: removing rounded expander bolt Reply with quote

special guest star wrote:
Just been given quite a nice old skool frame to try and get back on the road

Can someone remind me the best way to get an expander bold with a rounded head out of an old ITM stem going into standard forks

I'd like the frame and forks to be intact after - so grinder is out! Not bothered about the stem


could just cut through the stem?
Back to top
View user's profile Send private message
Bally
Div 2 Pro


Joined: 11 Aug 2004
Posts: 5664

PostPosted: Fri Jul 09, 2010 11:49 am    Post subject: Reply with quote

Billynobrakes wrote:
It will however be a b1tch to drill the stainless steel!

Unless it's a Cinelli 1R of course.
_________________
Bally: Putting the @rse into Grass.
www.easterleycycling.org.uk/CycleStatsLite.exe for Gears, Revs, Speed, BBAR calc, Pursuit Scheduling etc.
"your power is truly awesome" - John McC
"real class" - George Gilbert"
Back to top
View user's profile Send private message Visit poster's website
mho
Div 1 Pro


Joined: 28 Jul 2003
Posts: 9577
Location: going round the banking

PostPosted: Sat Jul 17, 2010 2:26 pm    Post subject: Reply with quote

did this ever come out?
Back to top
View user's profile Send private message
Bally
Div 2 Pro


Joined: 11 Aug 2004
Posts: 5664

PostPosted: Tue Jul 27, 2010 12:27 pm    Post subject: Reply with quote

mho wrote:
did this ever come out?

What a 1R (aka Cinelli Record) or the bolt ?


_________________
Bally: Putting the @rse into Grass.
www.easterleycycling.org.uk/CycleStatsLite.exe for Gears, Revs, Speed, BBAR calc, Pursuit Scheduling etc.
"your power is truly awesome" - John McC
"real class" - George Gilbert"
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    Cycling Forums UK : www.veloriders.co.uk Forum Index -> Tips & How To All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Important Notice: VeloRiders copyrights all images appearing on this website and in the Gallery. Images are displayed for viewing only, and commercial or personal use of any of these images without the written permission of VeloRiders is prohibited under international copyright law. Copyright 2002/2013 VeloRiders. All rights reserved.


Powered by phpBB © 2001, 2002 phpBB Group

E-mail VeloRiders. Comments, questions or send your photos to , Order your photos@

RSS News Feed
aegishosting