Hub nut torque spec?

[Thai-wronghorse]

I've just changed the nearside CV boot and steering rack boot so obviously had to remove the driveshaft from the hub but I'm struggling to find the torque specs for the 12 pointed nut?

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[sockpuppet]

From the bentley manual:

Tightening torques
• Ball joint to control arm
(always replace) 20 Nm (15 ft-Ib)
plus % turn (90°)
• 12-point nut for drive axle to wheel hub
(always replace) 200 Nm (148 ft-Ib)
loosen 1 1/2 turn (180°)
turn wheel 1 1/2 turn (180°)
then tighten to 50 Nm (37 ft-Ib)
plus 1/6 turn (60°)
• Hex bolt for drive axle to wheel hub
(always replace) 250 Nm (184 ft-Ib)
plus % turn (90°)
loosen 1 1/2 turn (180°)
turn wheel 1 1/2 turn (180°)
then tighten to 250 Nm (184 ft-Ib)
plus % turn (90°)
• Ball joint to wheel bearing housing .. 45 Nm (33 ft-Ib)


Axle nut tightening (12-point hex nut)
• Weight of vehicle must be on its wheels.
• Tighten new 12-point nut to 200 Nm (148 ft-lb) and im-
mediately loosen 1 1/2 turn (180°)
• Turn wheel 1 1/2 turn (180°) (roll vehicle), then tighten to
50 Nm (37 ft-Ib) plus 1/6 turn (60°)
WARNING-
Loosen and tighten axle nuts only when weight of
vehicle is on the wheels. The leverage (torque) re-
quired for this operation is sufficient to topple the
vehicle to the ground if supported on a lift or jack
stands.
WHEEL BEARINGS
40-12 FRONT SUSPENSION AND DRIVE AXLES
I M42-0005 I
3283
I V40-1298 I
< Axle nut tightening (alternate procedure)
• Weight of vehicle must be on its wheels.
• Tighten new 12-point nut to 200 Nm (148 ft-Ib) and im-
mediately loosen Y2 turn (180°)
• Turn wheel Y2 turn (180°) (roll vehicle)
• Make a mark on nut point with line (arrow A).
• Make a second mark on the wheel hub (arrow B) two
nut points away from the first. (The distance between
each nut point on a 12-point nut is 30°)
• Tighten the axle nut until both marks line up.
WARNING-
Loosen and tighten axle nuts only when weight of
vehicle is on the wheels. The leverage (torque) re-
quired for this operation is sufficient to topple the
vehicle to the ground if supported on a lift or jack
stands.

 

[Thai-wronghorse]

Excellent, thank you.

I'll order a new genuine nut and invest in a higher range torque wrench now that I know it needs 200Nm.

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