Re: cotter pins & fit... The diameter is the most critical dimension. They have been most available in 9.5 mm, 9 mm and 8.5 mm.. with a few 8 mm popping up. Obviuosly if the pin 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 correctly, 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 proper 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> 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 the people from whom I ordered the cotterpins the types of cranks that I needed them for, but seem to have ended up with ones which are a little too large. Or maybe it's my installation technique?
I would be very grateful for advice as to which size of cotterpins I should 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.