I recall "tighten it down til it starts to strip, then back off a quarter-turn."
The mechanical CAD designers who sit near me compute bolt elongation due to torque and choose a value that keeps everything in the elastic range. Then they go get the seasoned mechanic to try it and see if it "makes sense."
Ken Freeman
Ann Arbor, MI USA
> "torque specs were established by having a seasoned mechanic tighten the thing
> and then see what the spec was with a torque wrench. "
>
> I think I will have that made into a plaque and hang it up in CDO's work
> shop!!!! Great!
> 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: jswan@optonline.net
> To: johnb@oxford.net
> Cc: classicrendezvous@bikelist.org
> Sent: Mon, 6 Nov 2006 9:42 AM
> Subject: Re: [CR]Campagnolo axle nut-to-cone torch spec. request.
>
> I had a uncle who was a engineer, mechanic, machinist and full time
> professional builder of dragster engines. His theory was that torque specs were
> established by having a seasoned mechanic tighten the thing and then see what
> the spec was with a torque wrench.
>
> Jamie Swan
> Cell - 516-238-6782
> Centerport Cycles Inc.
> 245 Main St.
> Northport, N.Y., U.S.A.
> 11768
> 631-262-0909
> http://www.centerportcycles.com (mapped)
> http://www.cabinfeverauctions.com
> http://www.cabinfeverexpo.com
> http://www.limws.org
> http://www.liatca.org
>
>
> On Nov 6, 2006, at 9:22 AM, John Betmanis wrote:
>
> > but I've always found that
> > intuition and experience worked just fine for hand tools on bicycles.
>
>
> _______________________________________________
>
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