Camshaft Timing Chain, Component Overview

Camshaft Timing Chain, Component Overview

Note:
^ Crankshaft and camshafts must only be rotated when chain drive is installed completely. Otherwise the valves run into the pistons and the valves or piston heads could be damaged.
^ Before removing camshaft timing chain, mark direction of travel with paint. Reversing the rotation direction of a used chain can destroy it.

Left camshaft timing chain





1 - Camshaft adjuster for exhaust camshaft

^ Identification "Exhaust"

2 - Camshaft bolt

^ Replace
^ Initial tightening specifications: 40 Nm
^ Final tightening specifications: 80 Nm plus an additional 90 degree (1/4 turn)

3 - Camshaft bolt

^ Replace
^ Initial tightening specifications: 40 Nm
^ Final tightening specifications: 80 Nm plus an additional 90 degree (1/4 turn)

4 - Camshaft adjuster for intake camshaft

^ Identification "Intake"

5 - Left camshaft timing chain

6 - 9 Nm

7 - Chain tensioner for left camshaft timing chain

8 - Oil strainer

^ Set into the chain tensioner
^ Observe locating tabs on circumference

9 - Gasket

^ Replace
^ Clipped onto chain tensioner

10 - Mounting bracket for drive sprocket

11 - 8 Nm plus an additional 45 degree (1/8 turn)

^ Replace
^ To be oiled for installation

12 - Drive sprocket for left camshaft timing chain

13 - Thrust washer for drive sprocket

14 - 6 Nm plus an additional 60 degree (1/6 turn)

^ Replace

Right camshaft timing chain





1 - Drive sprocket for right camshaft timing chain

2 - Pivot pin for drive sprocket

3 - 30 Nm plus an additional 90 degree (1/4 turn)

4 - Right camshaft timing chain

5 - Camshaft bolt

^ Replace
^ Initial tightening specifications: 40 Nm
^ Final tightening specifications: 80 Nm plus an additional 90 degree (1/4 turn)

6 - Camshaft adjuster for intake camshaft

^ Identification "Intake"

7 - Chain tensioner for right camshaft timing chain

8 - Oil strainer

^ Set into chain tensioner
^ Installation position: Locating tabs on circumference

9 - Gasket

^ Replace
^ Clipped onto the chain tensioner

10 - 9 Nm

11 - Camshaft adjuster for exhaust camshaft

^ Identification "Exhaust"

12 - Camshaft bolt

^ Replace
^ Initial tightening specifications: 40 Nm
^ Final tightening specifications: 80 Nm plus an additional 90 degree (1/4 turn)

13 - Thrust washer for drive sprocket