Timing Chain Covers Overview

Timing Chain Covers Overview






1 O-ring

• Replace

• Coat with oil before installing

2 Guide Tube for Oil Dipstick

3 Bolt

• 9 Nm

4 Bolt

• 9 Nm

5 Camshaft Adjustment Valve 1 (N205)

• Removing and installing, refer to => [ Camshaft Adjustment Valve 1 ] Service and Repair

6 Seal

• Coat with oil before installing

• Replace if damaged

7 Bolt

• Tightening sequence, refer to => [ Timing Chain Upper Cover - Tightening
Sequence ]

8 Upper Timing Chain Cover

• Removing and installing, refer to => [ Timing Chain Upper Cover - Tightening
Sequence ]

9 Gasket

• Replace if damaged

10 O-ring

• Replace

• Coat with oil before installing

11 Alignment Pins

• Centering the cover

12 Lower Timing Chain Cover

• Removing and installing, refer to => [ Lower Timing Chain Cover ] Lower Timing Chain Cover

13 Bolt

• Replace

• Tightening sequence, refer to => [ Timing Chain Lower Cover Tightening
Sequence ]

14 Shaft Seal

• For the vibration damper

• Removing and installing, refer to => [ Vibration Damper Shaft Seal ] Vibration Damper Shaft Seal

15 Plug

• Replace

Timing Chain Upper Cover - Tightening Sequence





- Tighten the bolts - 1 through 5 - in the sequence shown:

- Tighten the bolts to 9 Nm.

Timing Chain Lower Cover Tightening Sequence





- Tighten the bolts - 1 through 15 - in 2 stages in the sequence shown:

- 1. Tighten the bolts to 8 Nm.

- 2. Tighten the bolts an additional 45°.