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Timing Chain Component Overview






Timing Chain Component Overview






1 Control Housing

Removal and installation, refer to => [ Camshafts ] Service and Repair

Disassembling and assembling, refer to => [ Disassembling and Assembling Control Housing ] Valvetrain Component Overview

Check screen for dirt, refer to => [ Checking Strainer of Control Housing for Contamination ] Valvetrain Component Overview

Lightly lubricate contact surfaces of oil seals before installing

2 8 Nm

Replace

3 Camshaft Timing Chain

Before removing, mark direction of rotation with paint.

Remove from camshafts, refer to => [ Camshaft Timing Chain ] Camshaft Timing Chain

Removal and installation, refer to => [ Timing Mechanism Drive Chain and Camshaft Timing Chain ] Timing Mechanism Drive Chain and Camshaft Timing Chain

4 Camshaft Adjuster, Exhaust Side

Identification: "32A"

Removal and installation, refer to => [ Camshaft Timing Chain ] Camshaft Timing Chain

5 Intermediate Shaft

6 Thrust Washer

7 8 Nm

Insert with locking compound; Locking compound.

8 Timing Chain Tensioning Rail

Remove to remove and install upper and lower timing chain covers

9 Mounting Pin

10 Camshaft Timing Chain Tensioner - 40 Nm

Removal and installation, refer to => [ Camshaft Timing Chain ] Camshaft Timing Chain

11 Seal

Replace if leaking or damaged

12 Timing Mechanism Drive Chain Sprocket

Removal and installation, refer to => [ Timing Mechanism Drive Chain and Camshaft Timing Chain ] Timing Mechanism Drive Chain and Camshaft Timing Chain

13 Camshaft Timing Chain Sprocket

Removal and installation, refer to => [ Timing Mechanism Drive Chain and Camshaft Timing Chain ] Timing Mechanism Drive Chain and Camshaft Timing Chain

14 60 Nm plus an additional 90° turn

Replace

Counterhold vibration damper with counterhold (T10069) to loosen and tighten

15 Chain Tensioner with Tensioning Rail

For drive timing chain

Before installation release the locking device in the chain tensioner with a small screwdriver and press the tensioning plate against the chain tensioner

16 Drive Sprocket

Integral part of crankshaft

17 Power Take-Off Drive Chain

Indicate direction of rotation before removing.

Removal and installation, refer to => [ Timing Mechanism Drive Chain and Camshaft Timing Chain ] Timing Mechanism Drive Chain and Camshaft Timing Chain

18 Timing Mechanism Drive Chain Guide Rail

Removal and installation, refer to => [ Timing Mechanism Drive Chain and Camshaft Timing Chain ] Timing Mechanism Drive Chain and Camshaft Timing Chain

19 Bolts -10 Nm

For guide rail

20 18 Nm

21 23 Nm

22 Camshaft Adjuster, Intake Side

Identification: "24E"

Removal and installation, refer to => [ Camshaft Timing Chain ] Camshaft Timing Chain

23 Bolt

Replace

Contact surface of sensor wheel at screw head must be dry when installing

To loosen and tightening, counterhold with open-end spanner on camshaft hex head => [ Camshaft Timing Chain ] Camshaft Timing Chain

60 Nm plus an additional 90° (1/4) turn.

24 Camshaft Timing Chain Guide Rail

Removal and installation, refer to => [ Camshaft Timing Chain ] Camshaft Timing Chain

25 Camshaft Adjustment Valve 1 (N205)

For intake camshaft

Mark the electrical connector before disconnecting

26 Camshaft Adjustment Valve 1 (exhaust) (N318)

For exhaust camshaft

Mark the electrical connector before disconnecting

27 Camshaft Timing Chain Guide Rail

Clipped in at control housing

Identify Timing Chain Direction of Rotation





- Identify timing chain direction of rotation with - arrow - mark before removing, using paint - arrows -.


Risk of damaging timing chain.

Do not mark chain with punch, notch or something similar.

Markings on Control Housing with MPI Engines





- A - Flywheel-side view

- B - Vibration damper-side view

Notches - arrows - are reference points for markings on camshaft adjusters.