Proper Torque for Fuel Fittings

In article , Steve Waltner
wrote:
I'm to the point of installing the fuel fittings on the fuel tanks on
my RV-8A project. I'm a little confused about what torque to set my
wrench at when installing the fitting.

The fitting that goes through the tank rib and 3/16" reinforcement
plate is an AN833-6D elbow with an AN924-6D nut on the outside. There
are also a pair of -4D fittings for the vent line which will soon be
mounted as well. The only torque chart that I'm ever able to find is
one for AN bolts/nuts. Since these are aluminum fittings, I don't dare
torque them to the same values.

Any assistance would be greatly appreciated.

Steve

Thanks for the responses. I ended up and called Van's yesterday. The
response was that there is no official torque value for the nut that
attaches the fitting to the rib. The sealant apparently provides a fair
amount of the support on holding the fitting in place instead of the
nut. This confirms what I was told by some others that I had asked this
same question which was, tighten it down to where the nut bottoms out
and go on to the next task. I sealed the various fitings onto the
inboard ribs last night.

Steve