Timing Chain: Service and Repair

11 31 052 - Replacing both timing chains (N73)





Special tools required:
- 11 2 001 11 2 000 Puller
- 11 2 002 11 2 000 Puller
- 11 2 003 11 2 000 Puller
- 11 2 007 11 2 000 Puller





Necessary preliminary tasks:
- Remove lower timing case cover Removing and Installing Lower Timing Case Cover (N73).





Remove timing chain (1).
Remove timing chain (5).
Loosen screws (7).
Remove guide rails (3 and 6).
Remove tensioning rails (2 and 4).





Attach special tools 11 2 001 11 2 000 Puller and 11 2 002 11 2 000 Puller to crankshaft.
Insert special tool 11 2 007 11 2 000 Puller and remove sprocket wheel with special tool 11 2 003 11 2 000 Puller.





Assemble engine.

Installation:
Check sprocket wheels for wear, replace if necessary.