[s-cars] Re More on Wheel Torque

[Ian Duff]

WTF are "2 piece nuts"??? The only time I've seen anything remotely
resembling "2 piece nuts" is after some infraction at home.

It seems to me the argument against using antiseize is a "wet vs. dry
torque" argument, not an "antiseize will encourage the fastener to
automagically loosen itself" argument. The intelligent discourse so far
(thanks, kids, for not getting personal, except for one blast from an
un-named erstwhile cameraman) has seemed to endorse antiseize as perhaps
promoting fasteners retaining tension a bit more effectively, as well as
allowing their removal, like for lugs after a winter of salted roads. This
investigation seems to be centered on wheel lugs and wheel to hub mating
faces primarily, and pretty explicitly NOT on spark plugs.

Is there such a thing as a conversion from dry to wet torque? My guess is
no, since there could be way too many variables. I'm guessing that applying
a measured amount of torque to a fastener is an indirect way of measuring
fastener stretch, which might be a direct way of measuring clamping force.
Am I close yet? If so, might it be possible to install a lug bolt dry to the
specified torque, measure the stretch, remove it, select and apply an
antiseize compound, and re-install with a torque wrench until the same
stretch was achieved? How does one measure fastener stretch? Micrometer? Are
thousandths of an inch sufficiently accurate? Is measuring overall length of
the same bolt dry vs. wet in the same hole good enough?

Given that my track time has yet to occur, and is unlikely to do so in the
near future, my need to torque after every run group is improbable. I feel
it necessary to check torque every now and then, just as I do to check tire
pressures. However, when the time comes to change a wheel, the "graunching"
as I tighten the lugs makes me think that the torque I'm applying, even thru
a torque wrench, might be affected by whatever is causing that horrendous
noise. BTW, how or where does one get their torque wrench calibrated?

-Ian Duff.
-----Original Message-----
From: s-car-list-admin at audifans.com
[mailto:s-car-list-admin at audifans.com]On Behalf Of QSHIPQ at aol.com
Sent: Thursday, 24 October 2002 08:36
To: wolff at turboquattro.com; s-car-list at audifans.com;
quattro at audifans.com; urq at audifans.com; 200q20v at audifans.com
Cc: mlped at qwest.net; jolly at zoomtown.com
Subject: [s-cars] Re More on Wheel Torque

<<lots-o-good-stuff snipped>>

Another anomoly (scarey) that appears to need clarification.   The 2 piece
nuts are considered the best for torquing wheels (hey I have those on my 4
runner), and the specification for most of them is to lubricate the nuts.
Further reading indicates this to be lubricating the 2 pc nut itself, NOT
the
threads/land/ or studs.



#################################################################
#################################################################
#################################################################
#####
#####
#####
#################################################################
#################################################################
#################################################################