( Service-Informatio0n
Group 23 June Bulletin No. :
Gearbox 1983 26 005 83 (2078)
– For U.S.A. and Canada only –
RE: COUPLING OF UNIVERSAL JOINT TO GEARBOX
Dear Dealer:
In the future, lock washers will not be used to bolt the
universal joint to the gearbox drive flange.
Long-time testing has demonstrated that drive shaft bolts
without lock washers will not come lapse provided they
are tightened to the specified torque ‘.qf_
‘d;.i.(‘ -….,.._
4 0 Nm ( 2 9 ft/ 1 b ) . •• –~ •• “”””-·
·.ak.J::\ure no oil
Lock
Bolt
Part
MS -x 1 x 1·4-~·S’
No. 26 11 1 230 4
Please route and initial before filing
being
ing
11 9 9_30 840
2
Lock washers are not needed when repairing motorcycles
prior to 1981. However, please bear in mind
that in those motorcycle you should use the
shorter (13mm – long) bolt, because the longer
(14.5mm) projects through the drive flange and may
damage the gearbox output seal.
Yours truly,
BMW OF NORTH AMERICA, INC.
Richard Dampf
National Technical Manager
RD/cs
(
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