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Date: 25 Mar 2007 21:06:55
From: Peter Grange
Subject: Seat Creak on Street Machine GT
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I posted on this subject in 2005. The really loud creak from the seat
was causing me grief, and it was getting worse. I was genuinely
concerned the seat was going to fail, but could find no cracks in the
seat.
However, I recently found out what it was. The skewers that hold the
seat in place had oil on them, and the oil had made its way onto the
face of the washers on the skewers which press on the seat mounting to
hold it in place.
Cleaned everything up, back to silent seat again.
In my experience one uses oil to stop squeaks, but in this case it was
causing it.
Any mechanically-minded people out there with an explanation?
Cheers
Pete
--
Peter Grange
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Date: 27 Mar 2007 19:31:04
From: Peter Clinch
Subject: Re: Seat Creak on Street Machine GT
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Peter Grange wrote:
> However, I recently found out what it was. The skewers that hold the
> seat in place had oil on them, and the oil had made its way onto the
> face of the washers on the skewers which press on the seat mounting to
> hold it in place.
>
> Cleaned everything up, back to silent seat again.
>
> In my experience one uses oil to stop squeaks, but in this case it was
> causing it.
>
> Any mechanically-minded people out there with an explanation?
A rather vague guess, where you add it to stop squeaks it's to make
movement between parts /easier/. In this case you don't things
moving at all, so making things move more easily could increase
movement from effectively zero to a little bit, which gives rise to
creaks.
But I'm no engineer...
Pete.
--
Peter Clinch Medical Physics IT Officer
Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
net p.j.clinch@dundee.ac.uk http://www.dundee.ac.uk/~pjclinch/
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Date: 27 Mar 2007 15:48:25
From: Edward Dolan
Subject: Re: Seat Creak on Street Machine GT
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"Peter Clinch" <p.j.clinch@dundee.ac.uk > wrote in message
news:56t674F28edjaU1@mid.individual.net...
[...]
> But I'm no engineer...
Christ no! He is a Medical Physics IT Officer ... whatever the hell that is!
> Peter Clinch Medical Physics IT Officer
> Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
> Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
> net p.j.clinch@dundee.ac.uk http://www.dundee.ac.uk/~pjclinch/
Regards,
Ed Dolan the Great - Minnesota
aka
Saint Edward the Great - Order of the Perpetual Sorrows - Minnesota
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Date: 27 Mar 2007 15:52:04
From: Curtis L. Russell
Subject: Re: Seat Creak on Street Machine GT
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On Tue, 27 2007 19:31:04 +0100, Peter Clinch
<p.j.clinch@dundee.ac.uk > wrote:
>A rather vague guess, where you add it to stop squeaks it's to make
>movement between parts /easier/. In this case you don't things
>moving at all, so making things move more easily could increase
>movement from effectively zero to a little bit, which gives rise to
>creaks.
>
>But I'm no engineer...
Probably close, anyway. Visions had a problem with their skewers and
it would increase noise everywhere on the seat, including the seat
support straps. Of course, the recall on some was because they would
actually fail and your seat would leave the bike, which was
discomfiting.
Curtis L. Russell
Odenton, MD (USA)
Just someone on two wheels...
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Date: 27 Mar 2007 21:11:49
From: Peter Grange
Subject: Re: Seat Creak on Street Machine GT
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On Tue, 27 2007 15:52:04 -0400, Curtis L. Russell
<curtis@md-bicycling.org > wrote:
>On Tue, 27 2007 19:31:04 +0100, Peter Clinch
><p.j.clinch@dundee.ac.uk> wrote:
>
>>A rather vague guess, where you add it to stop squeaks it's to make
>>movement between parts /easier/. In this case you don't things
>>moving at all, so making things move more easily could increase
>>movement from effectively zero to a little bit, which gives rise to
>>creaks.
>>
>>But I'm no engineer...
>
>Probably close, anyway. Visions had a problem with their skewers and
>it would increase noise everywhere on the seat, including the seat
>support straps. Of course, the recall on some was because they would
>actually fail and your seat would leave the bike, which was
>discomfiting.
>
Well whatever reason it's stopped now, after over a year. I took the
seat off several times but couldn't figure it out. The seat exiting
stage right was my worry.
A (very) ginal benefit was that peds in Windsor Great Park heard me
coming.
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Date: 25 Mar 2007 14:36:34
From: Leif
Subject: Re: Seat Creak on Street Machine GT
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On 25, 1:06 pm, Peter Grange <p...@plgrange.demon.co.uk > wrote:
> I posted on this subject in 2005. The really loud creak from the seat
> was causing me grief, and it was getting worse. I was genuinely
> concerned the seat was going to fail, but could find no cracks in the
> seat.
>
> However, I recently found out what it was. The skewers that hold the
> seat in place had oil on them, and the oil had made its way onto the
> face of the washers on the skewers which press on the seat mounting to
> hold it in place.
>
> Cleaned everything up, back to silent seat again.
>
> In my experience one uses oil to stop squeaks, but in this case it was
> causing it.
>
> Any mechanically-minded people out there with an explanation?
>
> Cheers
>
> Pete
>
> --
>
> Peter Grange
Interesting.
I had the same squeak which went away when I put a 1 inch wood spacer
between the skewer mount and the seat back (trying to get a more
upright seat position). It took awhile for me to realize the squeek
was gone cause I'd gotten used to it.
Anyway, still love my SMGT.
-L
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