Date:         Sat, 9 Jun 2012 10:38:08 -0500
Reply-To:     JRodgers <jrodgers113@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         JRodgers <jrodgers113@GMAIL.COM>
Subject:      Re: Factory Hose Clamps
Comments: To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
In-Reply-To:  <BAY152-ds20D47F6E79941D5FF25644A0F10@phx.gbl>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Dennis, one thing we were taught in aviation mechanic school that I
think might apply here is - if a specified torque value nor a standard
torque value is not available, then finger-tight-plus-a quarter-turn was
the principle applied. None of this "tighten 'til you can't turn it no
'mo " stuff. A variant  of that might be to "snug it up - then a quarter
turn" where screw clamps are concerned. I think that is safe enough.

John

On 6/9/2012 9:00 AM, Dennis Haynes wrote:
> The pinch type hose clamps are also a compensating type clamp when pinched
> with the proper tool. That pinch can flex. It is used for both speed of
> installation and reliability. Unless you are using a torque wrench on a
> screw clamp you have no idea if it is being properly installed. Luckily hose
> connections tend to be reliable so we usually get away with anything. There
> are times where screw clamps are the best choice but stainless alone does
> not make them lifetime, especially with a stainless screw and nut. The
> stainless hardware will not give a consistent clamp load to a given torque
> when re-used.
>
> Dennis