learned something about drivetrain wobbles today

[DeWitt Harrison]

Interesting point. When I use a torque wrench with an extension,
I automatically use my other hand to stabilize the driving end of
wrench so that the extension does not cant sideways. This is so
automatic I didn't even factor it into my response. (I think
my understanding of the original problem would be better if
I could see to what degree the deep socket may have been forced
off axis during torquing.) If the socket or extension is kept on axis
by that second hand, the force needed to do so is small, and I
doubt it would produce a significant error. Excellent observation,
nonetheless, and a good caution to take care to keep it square
for accurate torque.

DeWitt Harrison
'88 5kcstq

On Thursday, May 04, 2006 10:04 AM
    "Bogach, Konstantin (IT)" <Konstantin.Bogach at morganstanley.com>wrote:

> Torque would be same if the angle of application is same, and ideally
> everything is perpendicular.  If it's not then part of the applied force
> will push the bolt longitudinally  and the rest of force will rotate the
> wrench (bolt) and create the torque.
> Different sockets may have different degree of loosness in the socket.
> Theoretically even same socket but different wrench position and you
> will have exerted your force/weight under different angle.  When using
> long sockets the torque often tends to be less due to greater part of
> the applied force will go along axle and less part to rotate the bolt or
> nut (because you push bolt's head to side more insteand of trying to
> rotate it)
>
> Konstantine
>
> DeWitt Harrison wrote:
> >
> > I'm puzzled by your experience and can't figure out what's going on
> > because torque is torque and any 'twist'  in a socket or an extension
> > ought to make no difference. The torque seen at the driving end and the
> > working end are the same by definition. Something else must be afoot.