Date:         Mon, 26 Sep 2011 15:23:35 -0500
Reply-To:     John Rodgers <inua@CHARTER.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         John Rodgers <inua@CHARTER.NET>
Subject:      Re: Torque wrenches - - was Question and parts request.
Comments: To: Gary Bawden <goldfieldgary@GMAIL.COM>
In-Reply-To:  <CACHTzad78eeYyYoE5sDoM38Zt9P3dFtCH6b2VnUPSGkoMzSAKA@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Yeh! Its a mystery, isn't it.

All torque values are there to deliberately put a controlled strain on
the part. To little - no grip. To much, and the tensile strength of the
material is exceeded. You get a permanent deformation and loss of
strength and ultimately failure. It it's cylinder flange hold-down studs
that fail - the potential disaster that could follow  is pretty spooky!
Losing a jug in flight would not be fun. It's bad enough when the cast
aluminum head cracks and separates from the steel cylinder barrel. They
are threaded together - not bolted together. Not good when lug bolts
break under the stain either. I don't ever want to race my wheel down
the road.

John

John Rodgers
Clayartist and Moldmaker
88'GL VW Bus Driver
Chelsea, AL
Http://www.moldhaus.com


On 9/26/2011 12:24 PM, Gary Bawden wrote:
> when it is converted for you,
> it gets down to three significant figures - - go figure!