3 Series E30 318i (M40) TOUR
Adjusting torsional face runout/contact pattern:
Secure special tool 00 2 500 (dial gauge holder) and measure
torsional face runout,
refer to Technical Data.
Caution!
The contact pattern is always the key to perfect adjustment of
a gear train,
refer to Basic Rules of Contact Pattern Adjustment.
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 may no longer be changed.
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 both bearings in final drive case (Type K) - final drive removed -
BMW AG - TIS
21.01.2013 03:04
Issue status (12/2007) Valid only until next DVD is issued
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