Clean and degrease cylinder base sealing face (arrow) and apply 3-Bond 1209.
Oil the cylinder wall.
Compress the piston rings with a clamping strap, BMW No. 112900.
Install the cylinder and at the same time pass the timing chain and the tensioner and guide rails through the timing case cavity.
Tighten cylinder securing screws.
Fit new seals to pivot pins for chain guide rail (1).
Install chain sprocket.
Tightening torque/tightening sequence:
- 1. M8 screw — 20 Nm
- 2. M6 screw — 9 Nm
- 3. Pivot screw for chain guide rail — 18 Nm