Thanks to all for your responses regarding cotter pins. I hadn¹t realised that the need to file the flats was the rule rather than the exception. I must have always been lucky in replacing cranks using old pins which happened to fit.
I¹m looking forward to adding a new skill to my cycle craft no doubt at the expense of a few spoiled pins!
Thanks again,
Wyndham Pulman-Jones Girton, Cambs., UK.
On 28/1/07 18:50, "oroboyz@aol.com" <oroboyz@aol.com> wrote:
> Re: cotter pins & fit...
> The diameter is the most critical dimension. They have been most availabl
e in
> 9.5 mm, 9 mm and 8.5 mm.. with a few 8 mm popping up. Obviuosly if the pi
n is
> too large it's impossible; if it's too small, it might be pulled off but
not
> well & will likely fail sooner or later..
> The angle of the ramp on the pin face is next...that is accomplished in a
vise
> with a file. I have used a felt magic marker, swab the ramped surface and
test
> install, filing away the area where the dye is not touched during test
> insertion... It's a tedious trial & error process but if you do it correc
tly,
> it will last years and years..
>
> Dale Brown
> cycles de ORO, Inc.
> 1410 Mill Street
> Greensboro, North Carolina 27408 USA
> 336.274.5959
> http://www.cyclesdeoro.com
> http://www.classicrendezvous.com
>
>
> -----Original Message-----
> From: jerrymoos@sbcglobal.net
> To: simonpj@mac.com; classicrendezvous@bikelist.org
> Sent: Sun, 28 Jan 2007 1:27 PM
> Subject: Re: [CR]Cotterpin blues
>
> Well, there are cotter pins of at least three different dimensions, for
> English,
> French and Italian cranks respectively. So you must be sure to get the p
roper
> ones. There may also have been specific manufacturers who used cotter
> dimensions different from national standards.
>
> Regards,
>
> Jerry Moos
> Big Spring, TX
>
> Simon PJ <simonpj@mac.com <mailto:simonpj%40mac.com> > wrote:
> I have to admit to being impatient and ham-fisted when it comes to
> cotterpins.
>
> I currently have some cranks that I need to re-install and am having
> problems because the cotterpins that I have do not fit well. I did tell t
he
> people from whom I ordered the cotterpins the types of cranks that I need
ed
> them for, but seem to have ended up with ones which are a little too larg
e.
> Or maybe it's my installation technique?
>
> I would be very grateful for advice as to which size of cotterpins I shou
ld
> be looking for. Are there types of cotterpin that are better than others?
>
> The cranks that I need them for are a Chater Lea set, and couple of
> different Williams sets.
>
> Thanks,
>
> Wyndham Pulman-Jones
> Girton, Cambs., UK.
>
>
> _______________________________________________
>
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