Install Both Timing Chains
- Position the timing chain (1).
- Position the special tool 2 357 904
on the guide pin (arrow) of the crankshaft and secure it with the bolt (2) on the crankcase.
- Replace the bearing journals (1) and (4).
Parts: Bearing journal
- Clean all of the screw threads of the bearing journals. Use a thread cutter as needed.
- Mount the sprocket and hand-tighten the screw.
- Position the guide rail (2).
- Screw in and tighten both bearing journals (1).TIGHTENING TORQUE SPECIFICATION
Bearing journal of tensioning and guide rail M8 Tightening torque 20 Nm - Position tensioning rail (3).
- Screw in and tighten the bearing journals (4).TIGHTENING TORQUE SPECIFICATION
Bearing journal of tensioning and guide rail M8 Tightening torque 20 Nm - Clean sealing surfaces (1).
- Install the chain tensioner and tighten the bolts (1).TIGHTENING TORQUE SPECIFICATION
Chain tensioner to crankcase M6x22 Tightening torque 10 Nm - Secure the chain tensioner piston (3) with the screwdriver (2).
- Remove special tool 0 491 012 (11 4 120)
and slowly remove the screwdriver (2).
- Replace the screw (1).
Parts: Screw
- Tighten down screw (1).TIGHTENING TORQUE SPECIFICATION
Camshaft wheel with bearing to crankcase M12x1.5 Tightening torque 108 Nm - Mount the tensioning rail (2) on the bearing journal (3).
- Attach the timing chain (1) on the camshaft wheel and position it correctly on the tensioning rail (2).
- Mount the drive chain (1) on the crankshaft.