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Main
Date: 09 Jul 2007 18:26:35
From: Dave
Subject: Removing frozen alloy spoke nipples?
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I've got a set of wheels with frozen alloy nipples that I'd like to
replace with brass nipples. Trouble is, the only way I've managed to
get any of the nipples off is with a pair of vice grips and a lot of
twisting. Is there some easier way to unfreeze them? Some kind of
solvent I can use to free the threads?
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Date: 11 Jul 2007 11:24:59
From:
Subject: Re: Removing frozen alloy spoke nipples?
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On Jul 11, 1:25 pm, Michael Press <rub...@pacbell.net > wrote:
> In article
> <1184129111.857438.213...@r34g2000hsd.googlegroups.com>
> ,
>
>
>
>
>
> raam...@gmail.com wrote:
> > On Jul 10, 8:13 pm, Michael Press <rub...@pacbell.net> wrote:
> > > In article
> > > <1184086613.228648.234...@i13g2000prf.googlegroups.com>
> > > ,
> > > Nate Knutson <biken...@riseup.net> wrote:
>
> > > > On Jul 9, 3:38 pm, raam...@gmail.com wrote:
> > > > > On Jul 9, 6:18 pm, Michael Press <rub...@pacbell.net> wrote:
>
> > > > > > In article
> > > > > > <1184005595.684370.108...@i38g2000prf.googlegroups.com>
> > > > > > ,
>
> > > > > > Dave <dben...@gmail.com> wrote:
> > > > > > > I've got a set of wheels with frozen alloy nipples that I'd like to
> > > > > > > replace with brass nipples. Trouble is, the only way I've managed to
> > > > > > > get any of the nipples off is with a pair of vice grips and a lot of
> > > > > > > twisting. Is there some easier way to unfreeze them? Some kind of
> > > > > > > solvent I can use to free the threads?
>
> > > > > > Probably not. Al corrodes into Al2O3, a very hard substance,
> > > > > > and much larger than the original Al. Al2O3 is impervious
> > > > > > to chemical attack, except for stuff that will eat up
> > > > > > spokes, rim, rim tape, concrete, ...
>
> > > > > try soaking the nipple in amonia
>
> > > That is ammonia.
>
> > > > i second this and am surprised it's only been mentioned once....
> > > > ammonia works on aluminum oxide corrosion. the problem when i use it
> > > > seems to be that it doesn't really penetrate well or quickly. but
> > > > putting a drop on both ends of each nipple and then letting it sit for
> > > > a while would probably work.
>
> > > The ammonia will attack the rim, and at the spoke hole
> > > the rim is particularly vulnerable. The ammonia does
> > > _not_ attack the Al3O2. It attacks the Al nipple,
> > > releasing the adhesion between the Al and the Al3O2.
>
> > yup. brain freeze or something- I'm glad you caught it before someone
> > posted a heyyyyyyy.....
>
> I do not understand what you mean to convey.
> A chemical solution to frozen Al spoke nipples is not practicable.
>
> --
> Michael Press- Hide quoted text -
>
> - Show quoted text -
I failed to realize the rim would most likely be made of aluminum and
might be affected by my ammonia-bath suggestion. As for ammonia to
help free aluminum nipples galvanized to steel spokes- I would say it
is worth a try- as I have read (too late for myself) that it works
very well in the case of aluminum seatposts stuck in cromo frames.
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Date: 11 Jul 2007 23:33:08
From: Michael Press
Subject: Re: Removing frozen alloy spoke nipples?
|
In article
<1184178299.666920.83650@k79g2000hse.googlegroups.com >,
raamman@gmail.com wrote:
> On Jul 11, 1:25 pm, Michael Press <rub...@pacbell.net> wrote:
> > In article
> > <1184129111.857438.213...@r34g2000hsd.googlegroups.com>
> > ,
> >
> >
> >
> >
> >
> > raam...@gmail.com wrote:
> > > On Jul 10, 8:13 pm, Michael Press <rub...@pacbell.net> wrote:
> > > > In article
> > > > <1184086613.228648.234...@i13g2000prf.googlegroups.com>
> > > > ,
> > > > Nate Knutson <biken...@riseup.net> wrote:
> >
> > > > > On Jul 9, 3:38 pm, raam...@gmail.com wrote:
> > > > > > On Jul 9, 6:18 pm, Michael Press <rub...@pacbell.net> wrote:
> >
> > > > > > > In article
> > > > > > > <1184005595.684370.108...@i38g2000prf.googlegroups.com>
> > > > > > > ,
> >
> > > > > > > Dave <dben...@gmail.com> wrote:
> > > > > > > > I've got a set of wheels with frozen alloy nipples that I'd like to
> > > > > > > > replace with brass nipples. Trouble is, the only way I've managed to
> > > > > > > > get any of the nipples off is with a pair of vice grips and a lot of
> > > > > > > > twisting. Is there some easier way to unfreeze them? Some kind of
> > > > > > > > solvent I can use to free the threads?
> >
> > > > > > > Probably not. Al corrodes into Al2O3, a very hard substance,
> > > > > > > and much larger than the original Al. Al2O3 is impervious
> > > > > > > to chemical attack, except for stuff that will eat up
> > > > > > > spokes, rim, rim tape, concrete, ...
> >
> > > > > > try soaking the nipple in amonia
> >
> > > > That is ammonia.
> >
> > > > > i second this and am surprised it's only been mentioned once....
> > > > > ammonia works on aluminum oxide corrosion. the problem when i use it
> > > > > seems to be that it doesn't really penetrate well or quickly. but
> > > > > putting a drop on both ends of each nipple and then letting it sit for
> > > > > a while would probably work.
> >
> > > > The ammonia will attack the rim, and at the spoke hole
> > > > the rim is particularly vulnerable. The ammonia does
> > > > _not_ attack the Al3O2. It attacks the Al nipple,
> > > > releasing the adhesion between the Al and the Al3O2.
> >
> > > yup. brain freeze or something- I'm glad you caught it before someone
> > > posted a heyyyyyyy.....
> >
> > I do not understand what you mean to convey.
> > A chemical solution to frozen Al spoke nipples is not practicable.
>
> I failed to realize the rim would most likely be made of aluminum and
> might be affected by my ammonia-bath suggestion. As for ammonia to
> help free aluminum nipples galvanized to steel spokes- I would say it
> is worth a try- as I have read (too late for myself) that it works
> very well in the case of aluminum seatposts stuck in cromo frames.
Check. I understand.
--
Michael Press
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Date: 10 Jul 2007 21:45:11
From:
Subject: Re: Removing frozen alloy spoke nipples?
|
On Jul 10, 8:13 pm, Michael Press <rub...@pacbell.net > wrote:
> In article
> <1184086613.228648.234...@i13g2000prf.googlegroups.com>
> ,
> Nate Knutson <biken...@riseup.net> wrote:
>
>
>
>
>
> > On Jul 9, 3:38 pm, raam...@gmail.com wrote:
> > > On Jul 9, 6:18 pm, Michael Press <rub...@pacbell.net> wrote:
>
> > > > In article
> > > > <1184005595.684370.108...@i38g2000prf.googlegroups.com>
> > > > ,
>
> > > > Dave <dben...@gmail.com> wrote:
> > > > > I've got a set of wheels with frozen alloy nipples that I'd like to
> > > > > replace with brass nipples. Trouble is, the only way I've managed to
> > > > > get any of the nipples off is with a pair of vice grips and a lot of
> > > > > twisting. Is there some easier way to unfreeze them? Some kind of
> > > > > solvent I can use to free the threads?
>
> > > > Probably not. Al corrodes into Al2O3, a very hard substance,
> > > > and much larger than the original Al. Al2O3 is impervious
> > > > to chemical attack, except for stuff that will eat up
> > > > spokes, rim, rim tape, concrete, ...
>
> > > try soaking the nipple in amonia
>
> That is ammonia.
>
>
>
> > i second this and am surprised it's only been mentioned once....
> > ammonia works on aluminum oxide corrosion. the problem when i use it
> > seems to be that it doesn't really penetrate well or quickly. but
> > putting a drop on both ends of each nipple and then letting it sit for
> > a while would probably work.
>
> The ammonia will attack the rim, and at the spoke hole
> the rim is particularly vulnerable. The ammonia does
> _not_ attack the Al3O2. It attacks the Al nipple,
> releasing the adhesion between the Al and the Al3O2.
>
> --
> Michael Press- Hide quoted text -
>
> - Show quoted text -
yup. brain freeze or something- I'm glad you caught it before someone
posted a heyyyyyyy.....
|
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Date: 11 Jul 2007 17:25:24
From: Michael Press
Subject: Re: Removing frozen alloy spoke nipples?
|
In article
<1184129111.857438.213220@r34g2000hsd.googlegroups.com >
,
raamman@gmail.com wrote:
> On Jul 10, 8:13 pm, Michael Press <rub...@pacbell.net> wrote:
> > In article
> > <1184086613.228648.234...@i13g2000prf.googlegroups.com>
> > ,
> > Nate Knutson <biken...@riseup.net> wrote:
> >
> >
> >
> >
> >
> > > On Jul 9, 3:38 pm, raam...@gmail.com wrote:
> > > > On Jul 9, 6:18 pm, Michael Press <rub...@pacbell.net> wrote:
> >
> > > > > In article
> > > > > <1184005595.684370.108...@i38g2000prf.googlegroups.com>
> > > > > ,
> >
> > > > > Dave <dben...@gmail.com> wrote:
> > > > > > I've got a set of wheels with frozen alloy nipples that I'd like to
> > > > > > replace with brass nipples. Trouble is, the only way I've managed to
> > > > > > get any of the nipples off is with a pair of vice grips and a lot of
> > > > > > twisting. Is there some easier way to unfreeze them? Some kind of
> > > > > > solvent I can use to free the threads?
> >
> > > > > Probably not. Al corrodes into Al2O3, a very hard substance,
> > > > > and much larger than the original Al. Al2O3 is impervious
> > > > > to chemical attack, except for stuff that will eat up
> > > > > spokes, rim, rim tape, concrete, ...
> >
> > > > try soaking the nipple in amonia
> >
> > That is ammonia.
> >
> > > i second this and am surprised it's only been mentioned once....
> > > ammonia works on aluminum oxide corrosion. the problem when i use it
> > > seems to be that it doesn't really penetrate well or quickly. but
> > > putting a drop on both ends of each nipple and then letting it sit for
> > > a while would probably work.
> >
> > The ammonia will attack the rim, and at the spoke hole
> > the rim is particularly vulnerable. The ammonia does
> > _not_ attack the Al3O2. It attacks the Al nipple,
> > releasing the adhesion between the Al and the Al3O2.
>
> yup. brain freeze or something- I'm glad you caught it before someone
> posted a heyyyyyyy.....
I do not understand what you mean to convey.
A chemical solution to frozen Al spoke nipples is not practicable.
--
Michael Press
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| |
Date: 10 Jul 2007 10:18:19
From:
Subject: Re: Removing frozen alloy spoke nipples?
|
On Jul 10, 12:56 pm, Nate Knutson <biken...@riseup.net > wrote:
> On Jul 9, 3:38 pm, raam...@gmail.com wrote:
>
>
>
>
>
> > On Jul 9, 6:18 pm, Michael Press <rub...@pacbell.net> wrote:
>
> > > In article
> > > <1184005595.684370.108...@i38g2000prf.googlegroups.com>
> > > ,
>
> > > Dave <dben...@gmail.com> wrote:
> > > > I've got a set of wheels with frozen alloy nipples that I'd like to
> > > > replace with brass nipples. Trouble is, the only way I've managed to
> > > > get any of the nipples off is with a pair of vice grips and a lot of
> > > > twisting. Is there some easier way to unfreeze them? Some kind of
> > > > solvent I can use to free the threads?
>
> > > Probably not. Al corrodes into Al2O3, a very hard substance,
> > > and much larger than the original Al. Al2O3 is impervious
> > > to chemical attack, except for stuff that will eat up
> > > spokes, rim, rim tape, concrete, ...
>
> > > --
> > > Michael Press
>
> > try soaking the nipple in amonia
>
> i second this and am surprised it's only been mentioned once....
> ammonia works on aluminum oxide corrosion. the problem when i use it
> seems to be that it doesn't really penetrate well or quickly. but
> putting a drop on both ends of each nipple and then letting it sit for
> a while would probably work.- Hide quoted text -
>
> - Show quoted text -
it might be possible to pour a quantity into a bowl, dip the rim in
(minus tire and rim tape- duh....) and just roll the wheel around
flooding the spokes from each end; even just leaving one area dipped
in overnight just to be able to test if this method is applicable
|
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Date: 11 Jul 2007 00:10:43
From: Michael Press
Subject: Re: Removing frozen alloy spoke nipples?
|
In article
<1184087899.216158.246430@o61g2000hsh.googlegroups.com >
,
raamman@gmail.com wrote:
> On Jul 10, 12:56 pm, Nate Knutson <biken...@riseup.net> wrote:
> > On Jul 9, 3:38 pm, raam...@gmail.com wrote:
> >
> >
> >
> >
> >
> > > On Jul 9, 6:18 pm, Michael Press <rub...@pacbell.net> wrote:
> >
> > > > In article
> > > > <1184005595.684370.108...@i38g2000prf.googlegroups.com>
> > > > ,
> >
> > > > Dave <dben...@gmail.com> wrote:
> > > > > I've got a set of wheels with frozen alloy nipples that I'd like to
> > > > > replace with brass nipples. Trouble is, the only way I've managed to
> > > > > get any of the nipples off is with a pair of vice grips and a lot of
> > > > > twisting. Is there some easier way to unfreeze them? Some kind of
> > > > > solvent I can use to free the threads?
> >
> > > > Probably not. Al corrodes into Al2O3, a very hard substance,
> > > > and much larger than the original Al. Al2O3 is impervious
> > > > to chemical attack, except for stuff that will eat up
> > > > spokes, rim, rim tape, concrete, ...
> >
> > > > --
> > > > Michael Press
> >
> > > try soaking the nipple in amonia
> >
> > i second this and am surprised it's only been mentioned once....
> > ammonia works on aluminum oxide corrosion. the problem when i use it
> > seems to be that it doesn't really penetrate well or quickly. but
> > putting a drop on both ends of each nipple and then letting it sit for
> > a while would probably work.- Hide quoted text -
> >
> > - Show quoted text -
>
> it might be possible to pour a quantity into a bowl, dip the rim in
> (minus tire and rim tape- duh....) and just roll the wheel around
> flooding the spokes from each end; even just leaving one area dipped
> in overnight just to be able to test if this method is applicable
The ammonia will attack the Al rim.
--
Michael Press
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Date: 10 Jul 2007 09:56:53
From: Nate Knutson
Subject: Re: Removing frozen alloy spoke nipples?
|
On Jul 9, 3:38 pm, raam...@gmail.com wrote:
> On Jul 9, 6:18 pm, Michael Press <rub...@pacbell.net> wrote:
>
>
>
> > In article
> > <1184005595.684370.108...@i38g2000prf.googlegroups.com>
> > ,
>
> > Dave <dben...@gmail.com> wrote:
> > > I've got a set of wheels with frozen alloy nipples that I'd like to
> > > replace with brass nipples. Trouble is, the only way I've managed to
> > > get any of the nipples off is with a pair of vice grips and a lot of
> > > twisting. Is there some easier way to unfreeze them? Some kind of
> > > solvent I can use to free the threads?
>
> > Probably not. Al corrodes into Al2O3, a very hard substance,
> > and much larger than the original Al. Al2O3 is impervious
> > to chemical attack, except for stuff that will eat up
> > spokes, rim, rim tape, concrete, ...
>
> > --
> > Michael Press
>
> try soaking the nipple in amonia
i second this and am surprised it's only been mentioned once....
ammonia works on aluminum oxide corrosion. the problem when i use it
seems to be that it doesn't really penetrate well or quickly. but
putting a drop on both ends of each nipple and then letting it sit for
a while would probably work.
|
| | |
Date: 11 Jul 2007 00:13:39
From: Michael Press
Subject: Re: Removing frozen alloy spoke nipples?
|
In article
<1184086613.228648.234320@i13g2000prf.googlegroups.com >
,
Nate Knutson <bikenate@riseup.net > wrote:
> On Jul 9, 3:38 pm, raam...@gmail.com wrote:
> > On Jul 9, 6:18 pm, Michael Press <rub...@pacbell.net> wrote:
> >
> >
> >
> > > In article
> > > <1184005595.684370.108...@i38g2000prf.googlegroups.com>
> > > ,
> >
> > > Dave <dben...@gmail.com> wrote:
> > > > I've got a set of wheels with frozen alloy nipples that I'd like to
> > > > replace with brass nipples. Trouble is, the only way I've managed to
> > > > get any of the nipples off is with a pair of vice grips and a lot of
> > > > twisting. Is there some easier way to unfreeze them? Some kind of
> > > > solvent I can use to free the threads?
> >
> > > Probably not. Al corrodes into Al2O3, a very hard substance,
> > > and much larger than the original Al. Al2O3 is impervious
> > > to chemical attack, except for stuff that will eat up
> > > spokes, rim, rim tape, concrete, ...
> >
> > try soaking the nipple in amonia
That is ammonia.
>
> i second this and am surprised it's only been mentioned once....
> ammonia works on aluminum oxide corrosion. the problem when i use it
> seems to be that it doesn't really penetrate well or quickly. but
> putting a drop on both ends of each nipple and then letting it sit for
> a while would probably work.
The ammonia will attack the rim, and at the spoke hole
the rim is particularly vulnerable. The ammonia does
_not_ attack the Al3O2. It attacks the Al nipple,
releasing the adhesion between the Al and the Al3O2.
--
Michael Press
|
| |
Date: 10 Jul 2007 16:25:22
From: Qui si parla Campagnolo
Subject: Re: Removing frozen alloy spoke nipples?
|
On Jul 9, 12:26 pm, Dave <dben...@gmail.com > wrote:
> I've got a set of wheels with frozen alloy nipples that I'd like to
> replace with brass nipples. Trouble is, the only way I've managed to
> get any of the nipples off is with a pair of vice grips and a lot of
> twisting. Is there some easier way to unfreeze them? Some kind of
> solvent I can use to free the threads?
http://www.bikemania.biz/Attivo_Professional_Cable_Spoke_Cutter_p/attivo_abt-07.htm
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Date: 10 Jul 2007 05:27:51
From: Johan Bornman
Subject: Re: Removing frozen alloy spoke nipples?
|
On Jul 9, 8:26 pm, Dave <dben...@gmail.com > wrote:
> I've got a set of wheels with frozen alloy nipples that I'd like to
> replace with brass nipples. Trouble is, the only way I've managed to
> get any of the nipples off is with a pair of vice grips and a lot of
> twisting. Is there some easier way to unfreeze them? Some kind of
> solvent I can use to free the threads?
They are either galled onto the spokes or corroded onto them. Either
way, it's as good as a weld. The only way out is to cut off the
spokes. You'll save yourself a lot of trouble biting the bullet and
start cutting.
JB
|
| |
Date: 09 Jul 2007 18:44:58
From: jim beam
Subject: Re: Removing frozen alloy spoke nipples?
|
Dave wrote:
> I've got a set of wheels with frozen alloy nipples that I'd like to
> replace with brass nipples. Trouble is, the only way I've managed to
> get any of the nipples off is with a pair of vice grips and a lot of
> twisting. Is there some easier way to unfreeze them? Some kind of
> solvent I can use to free the threads?
>
try heat - cigarette lighter. don't overheat the spoke wire.
|
| |
Date: 09 Jul 2007 15:38:24
From:
Subject: Re: Removing frozen alloy spoke nipples?
|
On Jul 9, 6:18 pm, Michael Press <rub...@pacbell.net > wrote:
> In article
> <1184005595.684370.108...@i38g2000prf.googlegroups.com>
> ,
>
> Dave <dben...@gmail.com> wrote:
> > I've got a set of wheels with frozen alloy nipples that I'd like to
> > replace with brass nipples. Trouble is, the only way I've managed to
> > get any of the nipples off is with a pair of vice grips and a lot of
> > twisting. Is there some easier way to unfreeze them? Some kind of
> > solvent I can use to free the threads?
>
> Probably not. Al corrodes into Al2O3, a very hard substance,
> and much larger than the original Al. Al2O3 is impervious
> to chemical attack, except for stuff that will eat up
> spokes, rim, rim tape, concrete, ...
>
> --
> Michael Press
try soaking the nipple in amonia
|
| |
Date: 09 Jul 2007 15:18:23
From: Michael Press
Subject: Re: Removing frozen alloy spoke nipples?
|
In article
<1184005595.684370.108210@i38g2000prf.googlegroups.com >
,
Dave <dbenoff@gmail.com > wrote:
> I've got a set of wheels with frozen alloy nipples that I'd like to
> replace with brass nipples. Trouble is, the only way I've managed to
> get any of the nipples off is with a pair of vice grips and a lot of
> twisting. Is there some easier way to unfreeze them? Some kind of
> solvent I can use to free the threads?
Probably not. Al corrodes into Al2O3, a very hard substance,
and much larger than the original Al. Al2O3 is impervious
to chemical attack, except for stuff that will eat up
spokes, rim, rim tape, concrete, ...
--
Michael Press
|
| |
Date: 09 Jul 2007 22:13:31
From: landotter
Subject: Re: Removing frozen alloy spoke nipples?
|
On Jul 9, 1:26 pm, Dave <dben...@gmail.com > wrote:
> I've got a set of wheels with frozen alloy nipples that I'd like to
> replace with brass nipples. Trouble is, the only way I've managed to
> get any of the nipples off is with a pair of vice grips and a lot of
> twisting. Is there some easier way to unfreeze them? Some kind of
> solvent I can use to free the threads?
That's corrosion. Sounds like a respoke job, unfortunately. Good luck.
|
|
