5 Series E34 525td (M51) TOUR
C = 18.50 mm (basic adjustment dimension for all Type G final drives)
B = 17.50 mm (special tool 33 1 412)
- / +e = coefficient of bevel gear e.g. - e 30
Y = measured distance e.g. 0.60 mm
X = old shim e.g 4.14 mm
A = thickness of correct shim
Establishing correct thickness of shim:
C nominal = C - e = 18.50 mm - 0.30 mm = 18.20 mm
C actual = B + Y = 17.50 mm + 0.60 mm = 18.10 mm
D (difference) = C nominal - C actual = 18.20 mm - 18.10 mm = +0.10 mm
A = X - D = 4.14 mm - (+0.10 mm) = 4.04 mm
The correct thickness for the shim is 4.04 mm.
Caution!
If the difference (D) is positive, the old shim was this much too thick.
If the difference (D) is negative, the old shim was this much too thin.
The permitted tolerance for the shim (A) is derived from the available shim gauges which range from
0.01 ... 0.03 mm.
RA Replacing drive pinion with crown wheel (Type G) - final drive removed -
BMW AG - TIS
23.01.2013 07:44
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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