7 Series E38 750i (M73) SAL
To check the tooth contact pattern, coat the crown wheel teeth
with printer's ink, turn in both directions several times and stop
crown wheel suddenly with a piece of hard wood.
Correction of torsional face runout and contact pattern is
performed by altering the thicknesses of both shims (1).
If backlash is too great, install a thinner shim on the crown wheel
end.
If backlash is too small, use a thicker shim on the crown wheel
end.
Axial displacement of the crown wheel of 0.01 mm signifies a
change in tooth flank clearance of 0.0076 mm.
Caution!
The total thickness of both shims must not be altered.
If a thinner or thicker shim is required to correct the tooth contact
pattern, the total thickness must be corrected with the second
shim, since otherwise the friction torque of bearings would be
changed again.
RA Replacing drive pinion with crown wheel (Type G) - final drive removed -
BMW AG - TIS
19.02.2013 17:58
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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