I wouldn't worry about it.
Planning to replace the ball joints on my Camry when the parts arrive,
> and have noticed in Southern California recently the weather has been
> over 100 degrees F.
> Usually, when I re torque the lug nuts on my factory aluminum wheels
> apx. 30 days after removing them, it seems if I originally torqued them
> during cold weather, the need to re tighten is less.
> Since for the ball joints I'll be removing the axle nut among others,
> -- this sets the wheel bearing pre load, and just wondering if the
> parts are already "warm" at "room temperature" whether I'll actually be
> under tightening them for use over the coming years, when temperatures
> could be apx. 50 degrees lower in the winters.
> Should I be adding some percentage compensation value to the torque
> figures if the metals are "warm" when fastening them?
> I work in an attached garage, but it doesn't cool down as much as usual
> with these high daytime temperatures, even waiting over night and
> starting in the morning.
>