Re[2]: Torque Wrench adapters...

[christopher_bender@fmc.com (CHRISTOPHER BENDER)]

     You are right that a torque wrench measures the torque at the socket 
     end, and that if no offset adapter is used, it doesn't matter how long 
     the torque wrench is.  I still assert that when using an offset 
     adapter, such as 2079, the torque wrench length comes into play for 
     the reason I stated earlier.
     
     Also, I hope you haven't spent the last fourteen years teaching your 
     students that lb-ft is a unit of force as you tell us, because it is a 
     unit of moment. :-)
     
     Chris

______________________________ Reply Separator _________________________________

>      But what does this mean to us Audi people trying to use tool 2079?  
>      Well, it means, that the torque specification given by Mr. Bentley is 
>      conceptually flawed.  To specify a torque of 258 lb-ft with tool 2079, 
>      but without specifying the torque wrench to be used, is wrong because 
>      they have to make an assumption of the length of your torque wrench.  
>      
Wrong...  A torque wrench measures the force applied at the pivot 
point (ie end of the wrench) not the force applied to the effort end. 
A reading of 258 ft.lbs. is the force applied to the end of tool 
2079, and since tool 2079 is a fixed length. The force on the bolt 
will the same for "ANY" torque wrench no matter how long it is.  The 
only differance will be in the amount of force that you need to 
apply to the effort end of the wrench in order to acheive the 258 
ft.lbs. at the end of tool 2079.  Since I have only tought physics for 
14 years, I could easily be mistaken, but I think not.  Now could we 
"""PLEASE""" end this thread.
     
Greg