User Guide

11.36
Assembling tensioning gear
•
Insert the tensioning spring.
•
Engage the tensioning spring on the pin in the
tensioning gear and turn it clockwise with the
counter-holder, BMWNo.124600, until the pin
of the tensioning gear engages the hole in the
gear.
•
Clamp the tensioning gear with damper housing
in a vice with soft jaws.
•
Measure distance “a” from the base of the ball
bearing seat to the tensioning gear.
e Caution:
The thickness of the spacing washer must never ex-
ceed this measurement.
•
Place a suitable spacing washer (arrow) on the
tensioning gear.
L Note:
Use temperature measuring device,
BMW No. 00 1 900, to check heat rise.
•
Heat the ball bearing to approx. 80 °C (176 °F)
and place it in position (with shoulder upper-
most).
•
Clamp the damper housing and the ball bearing
together in the vice (with soft jaws).
•
Using circlip pliers, insert the snap ring (arrow)
into the groove in front of the bearing.
•
The circlip must snap completely into the groove.
a
KR110470
KR110480
KR110460