Date:         Wed, 28 Nov 2001 10:02:41 -0800
Reply-To:     Matthew Pollard <poll7356@UIDAHO.EDU>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Matthew Pollard <poll7356@UIDAHO.EDU>
Subject:      Re: Torque Wench - calibration?
Comments: To: David Marshall <vanagon@VOLKSWAGEN.ORG>
In-Reply-To:  <AIEFIGCNNANNIHLNFBPECEIHEGAA.vanagon@volkswagen.org>
Content-Type: TEXT/PLAIN; charset=US-ASCII

i have checked my torque wrenchs a few ways. One way is to just check it
against someone elses' wrench, or send it back to snap-on (45$) (if you
have snap-on). I have also used a jig that a machinist made at an
aerospace company i worked it. It was pretty nice and he claims it to be
calibrated. I sketched it out:

www.uidaho.edu/~poll7356/torque.html

The crux is having something that is of a known mass...


Matthew Pollard          "Racing with the wind and flirting with death
Dept. Of Chemistry        So have a cup of coffee and catch your breath"
University of Idaho
www.uidaho.edu/~poll7356



On Wed, 28 Nov 2001, David Marshall wrote:

> With all this talk about torque wrenches - what is the best way to calibrate
> one?  What good is a torque wrench if it is consistently wrong?  Also, is
> there are 'sweet spot' on a torque wrench.  Mine goes from 0 to 150lbs, but
> I certainly don't trust the extreme ends of the scale.
>
> David Marshall
>
> Fast Forward Automotive Inc.
> 4356 Quesnel Hixon Road
> Quesnel BC Canada  V2J 6Z3
> mailto:info@fastforward.ca <mailto:info@fastforward.ca>
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> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf
> Of Alistair Bell
> Sent: November 27, 2001 8:16 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Torque Wench
>
>
> "Wise words from the mouths of fools do oft themselves belie"
>
> one of the cast of "beyond the Fringe", I rather think it was P. Cook
>
>
>
>
> > Entity Sudhir Desai spoke thus:
> >
> >> um... i would like to have a couple stern words with
> >> whomever feels it is unnecessary to use a torque
> >> wrench
> >
> > To which Gnarlodious responds:
> >
> > "The most difficult thing in the world is to know how to do a thing and to
> > watch someone else do it wrong without comment." -- Theodore H. White
> >
>