Date: Tue, 15 Oct 2002 17:57:15 +0100
Reply-To: Clive Smith <clive.harman-smith@NTLWORLD.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Clive Smith <clive.harman-smith@NTLWORLD.COM>
Subject: Re: Torque Wrench - EUREKA
Content-Type: text/plain; charset="iso-8859-1"
Jay,
You might have added something to the debate there; but soemthing makes feel
it was unwitting.
Lets think what happens by holding a nut at a torque, why would it
imediately want to come undone? Else ahts the point of holding it there?
I've never seen a nut come back after torqueing but as the studs settles
underneath and maybe works its way further into the block hole, the torque
may well come back off, now this would likely be apparaent holding a beam
wrench, but only if the click type was un-clicked and re-clicked, when it
might be noticed that the new position is further around the tightening arc.
In fact, this is what I seem to do until I'm entirely happy that the click
type has clicked at the same position.
But this is all a matter of screwing the studs down in the first place
properly (is there a torque for this?).
Does it take any time to transfer through to the stud fitting at the other
end - as the stud acts as a torsion bar - its possible
anyone reckon this might be why beam types are sometimes recommended - it
wouldn't change my method of checking the click type clicks a second time.
...a are those who keep maintaining that beam types muct be used for long
studs worried about OVER or UNDER torqueing? - do they even know?
Conclusion - its all down to thin twisty studs that may (unlikely but may)
subsequently screw themselves further down in their female threads as we
walk away happily having clicked our click-type - but this can also be a
problem using a beam type, but maybe less likely.
Is this why beam types seem to keep going even though the needle is pointing
at the correct torque - is this what Jay is getting at?
Clive
'88 Syncro Transporter
----- Original Message -----
From: "Jay L Snyder" <Jay.L.Snyder@USA.DUPONT.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Tuesday, October 15, 2002 12:58 PM
Subject: Re: Torque Wrench
> The beam torque wrench supplies a steady torque as you can hold it at the
> setting. Once the clicker style clicks, its done.
>
>
> Jay
>
>
>
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