SsangYong Rexton. Service manual - part 33

DI02-23

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

ENGINE HOUSING

DI ENG SM - 2004.4

6. Install the chain tensioner.

4. Install the intake and exhaust camshaft sprockets and

the timing chain.

Tightening torque

25 Nm + 90° + 10°

5. Rotate the crankshaft pulley two revolutions and ensure

that the OT mark on the crankshaft pulley and the OT
mark on the camshaft pulley are aligned.

Tightening torque

80 ± 8.0 Nm

Y220_02079

Y220_02077

Y220_02076

Notice

If the markings are not aligned, reinstall the cylinder
head.

Notice

• If the sprocket bolt is stretched over 0.9 mm, replace

it with new one.

• Always install the intake camshaft sprocket first.

• Ensure that the markings on camshaft sprocket and

timing chain are aligned.

• Make sure that the timing chain is securely seated

on the guide rail.

DI02-24

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

ENGINE HOUSING

DI ENG SM - 2004.4

Y220_02083

Y220_02082

Y220_02081

Y220_02080

Special Tools and Equipment

Name and Part Number

Application

HLA remover

Stem seal drift

DI02-25

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

ENGINE HOUSING

DI ENG SM - 2004.4

Y220_02084

TIMING CHAIN ASSEMBLY

Chain Drive System

System Layout

1. Exhaust camshaft sprocket

2. Upper guide rail

3. Intake camshaft sprocket

4. Clamping guide rail

5. HP pump sprocket

6. Lower guide rail

7. Oil pump tensioner

8. Oil pump sprocket

9. Crankshaft sprocket

10. Oil nozzle

11. Tensioner guide rail

12. Chain tensioner

Oil injecting direction

DI02-26

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

ENGINE HOUSING

DI ENG SM - 2004.4

Chain tensioner

The major function of tensioner is optimizing the movement of chain drive system by using spring constant and oil
pressure in the tensioner.

The tensioner performs function of adjusting chain tension to be always tight, not loose, while engine running. By doing
so, can reduce wears of each guide rail and sprocket.

Tightening torque

65 ± 5.0 Nm

(Installed on the cylinder head)

Guide rail

Guide rail is used to optimize the movement of chain drive system like tensioner.

Guide rail can prevent chain slap when chain is extended and reduce chain wears.

Guide rail is needed especially when the distance between the sprockets are too long.

The material is plastic.

• Location of guide rail

- Tensioner guide rail: Between crankshaft sprocket and exhaust camshaft sprocket

- Upper guide rail: Between exhaust camshaft sprocket and intake camshaft sprocket

- Clamping guide rail: Between intake camshaft sprocket and HP pump sprocket

- Lower guide rail: Between HP pump sprocket and crankshaft sprocket

Chain

• Chain type: Double Bush

• Pitch: 9.525 mm

• Load limits: 19,000 N

• No. of links: 144 EA

• Overall length: 1371.6 mm

• Replace when the chain is extended by 0.5 % from overall length (Replace if extended by over 6.858 mm)

Y220_02085

Check valve

* Check valve opening pressure: 0.2 ~ 0.5 bar