Attached is how Boeing figures you to perform torques, especially with higher than normal limits using some math and torque adapters.

Hope it helps,

Torg
_________________
1976 2002, 2743935, "TIN CUP" (Polaris), near Seattle

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Last edited by Torg3 on 5-12-08 10:52; edited 1 time in total

Steve,

Yup, I use a torque wrench, and an extender and calc it. Tried by gut feel one time, and it was tight, but obviously wasn't tight enough, and it got loose and stripped.

Never did it the other way, and overtightened it. But gotta give the BMW engineers credit to figure how tight exactly to make that big F'n nut.

Tom
_________________
I'll drive... ;-)

v i s i o n a u t i k s

if your nut is fuched, and the threads of the
stub axle compromised, and the splines
were runing loose, and your splines on both the
stub axle and hub are worn - you need all new
parts and start over again - or just redo it after
a few 100 or 1000 mileswith your method.


_________________
1976 BMW 2002 #2743711(sorry I sold it 12/25/06)
1986 BMW R65 650cc twin 19k miles
1964 BMW R27 250cc single 15K miles
2002 BMW 325xiTouring 29k miles
1984 MERCEDES-BENZ W123 300D Turbodiesel-188k miles fein-DIESEL

I use the length of the bar to calculate the lbs delivered, and stand on the extender bar. Or, if I grovel appropriately, my friend's shop will let me borrow their 3/4" torque wrench.
Ian
'76 M2

Terry Sayther (from his website www.terrysaytherauto.com wrote:

Be sure to retighten the hub-nut as tight as you can after reassembling the drive flange---Really tight. Tighter than that

Amen.
_________________
ClayW
1976 Fjord 2002 Sunroof

Project Blog

"Finish the thing, do it right the first time and drive the son of a bitch!"
-Gray Baskerville on hot rod advice

Yup. Fat old me on 2' of extension= 400+ ft/lbs.

And 2 more things-
grease (or anti- seize) the nut pressure surface and threads well,
and then do it again after a few months.

Just because.

"Really tight. Tighter than that."

yup.

t
_________________
I have a car disease. There is no cure.
I'm not even managing the symptoms very well...

I use the same method Mike and others describe - weigh myself, do the math, and stand on the bar at the correct distance. If your weight is accurate, and you do the math properly, and stand at the proper distance, this method is every bit as good as using a Big Torque Wrench.

Torque is not complicated - force times distance. Torque wrenches make it easier and faster to do, but they are not required if you can do math.
_________________
-Karl
'73 '02 for club/vintage racing
'78 320 for parts for '02
'78 320/6 for parts for something or other
'83 320is for parts for '02
'91 325iX for traction
'95 M3 for power
'91 Jetta diesel for economy