BMW K75 Repair Manual page 114

11-66.0
Big end bearing play- measuring
Each bearing must be measured individually.
Measure bearing play using Type PG-1 Plastigage BMW
No. 00 2 550. Displace crankpin app. 30° lrom bottom
dead centre. Wipe away oil lrom crankpin. Place the
Plastigage thread across the entire width 01 the bearing
6-8 mm lrom the crankpin centre. Install the bearing shells
groove 10 groove.
The crankshaft must not be rotated
afterthis .
Apply torque to the big end bearing shells and tighten with
BMW tightening angle indicator 11 2 110.
Note:
The crankshaft must not be rotated now.
Tightening torque:
Connecting rod bearing cap nut
Angle
30±3Nm
80° ± 3°
Remove the bearing cap again and measure the width 01
the plastic thread against the scale to determine the
amount 01 bearing play.
For permissible bearing play values, see Specilications,
page 11 - 08.0.
If
the big end bearings need to be renewed , ensure that
the colour marking on the crankpins and big end bearings
match.
8.87