Removing/Installing Crankshaft Gear And Rotor Flange; Measuring Backlash At The Countershaft - BMW k 1200 rs Repair Manual

Removing/installing crankshaft
1100
gear and rotor flange
•
Prevent from turning with retainer,
BMW No. 11 2 800, (see right).
1
•
Remove the screw (arrow) for the crankshaft
sprocket and the rotor flange.
•
Pull off rotor flange (1) with light hammer-blows,
and take off the sprocket.
•
Install the crankshaft sprocket first, then tighten
the rotor flange.
X
Tightening torque:
Rotor flange ................................................. 50 Nm
Measuring backlash at the coun-
1100
tershaft
L
. Note:
Abnormal noises, especially at low engine speeds,
could be due to excessive backlash between the
crankshaft/countershaft gearing.
e
. Important:
Always measure backlash with the engine cold.
– Remove alternator (
a
•
Secure dial-guage holder, BMW No. 00 2 500,
to gearbox intermediate flange.
•
Use the clamping screw to secure the clamp,
BMW No. 11 5 510, to the first vane of the driver.
11.26
KR110410
12.10).
11 5 510
•
Adjust the dial gauge, BMW No. 00 2 510, such
that the mark on the tool (3 mm from outside
edge) is aligned with the needle of the dial gauge
on the reference face.
•
Move the driver by hand. Note dial-gauge read-
ing.
•
Remove the clamp, BMW No. 11 5 510.
•
Turn the crankshaft to turn the driver through
120°.
•
Secure the clamp to the second driver vane and
use the dial gauge to measure the backlash.
•
Take a third measurement.
•
Calculate the average over the three measured
values.
•
Replace the countershaft if the average obtained
from the three measurements is at least 0.03 mm
(0.0012 in).
Determining countershaft
Average of 3 measure-
ments
0.03 mm ... 0.06 mm
(0.0012 in...0.0024 in)
greater than 0.06 mm
(0.0024 in)
00 2 500
Kr111100
Colour Stage
code
green - 0.040 mm
(- 0.0016)
yellow - 0.080 mm
(-0.0032 in)