SsangYong Rexton. Manual - part 28

DI02-3

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

ENGINE HOUSING

DI ENG SM - 2004.4

Y220_02001

CYLINDER HEAD/CYLINDER BLOCK

CYLINDER HEAD

System Characteristics

• 4-valve DOHC valve mechanism

• Swirl and tangential port

• 4-bolt type cylinder head bolt

• Water jacket integrated casting

• Integrated chain housing and cylinder head

• Oil gallery: drilled and sealing with cap and screw plug

Oil return check valve

Y220_02002

Cylinder head bolt

Intake port

Exhaust port

DI02-4

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

ENGINE HOUSING

DI ENG SM - 2004.4

Cylinder Head Pressure Leakage Test

Preceding Works:

- Removal of cylinders

- Removal of intake and exhaust manifold

- Removal of valves

Test Procedures

1. Place the pressure plate on a flat-bed work bench.

2. Install the cylinder head on the pressure plate.

3. Immerse the cylinder head with the pressure plate into

warm water (approx. 60°C) and pressurize with
compressed air to 2 bar.

Y220_02003

Y220_02004

Tightening torque

60 Nm

Notice

Examine the cylinder head for air bubbling. If the air
bubbles are seen, replace the cylinder head.

DI02-5

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

ENGINE HOUSING

DI ENG SM - 2004.4

Height “A” (cylinder head parting surface - cylinder head cover parting surface)

Minimum height after machining

Permissible unevenness of parting surface

Permissible variation of parallelism of top parting surface to bottom in longitu-

dinal direction

Peak-to-valley height

Valve recess “a”

Specifications

in longitudinal direction

in transverse direction

Intake valve

Exhaust valve

142.9 ~ 143.1 mm

142.4 mm

0.08 mm

0.0 mm

within 0.1 mm

0.004 mm

0.1 ~ 0.7 mm

0.1 ~ 0.7 mm

Cylinder Head Parting Surface Check

Y220_02005

Y220_02006

Measurement

1. Measure the cylinder head height “A”.

2. Insert the valves into the valve guides and measure the

recesses.

Notice

If the height is less than the limit, the cylinder head
must be replaced.

Limit

Over 142.4 mm

Valve recess “a”

0.1 ~ 0.7 mm

Notice

If the measured value is out of the specified range,
machine the valve seat as much as necessary until
the specified value is achieved.

DI02-6

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

ENGINE HOUSING

DI ENG SM - 2004.4

Y220_02007

Y220_02008

Y220_02010

Y220_02011

3. Mark on the intake camshaft sprocket and exhaust

camshaft sprocket for timing setting during installation.

2. Remove the camshaft position sensor.

• The intake manifold can be interfered by the sensor

when installing.

Disassembly

Preceding Works:

- Removal of fan belt
- Removal of fuel supply and return lines
- Removal of EGR related pipes
- Removal of intake manifold mounting bracket
- Removal of injector fuel line and connector, and glow plug

connector

1. Remove the cylinder head cover.

Cylinder Head
- Disassembly and Reassembly

Notice

• Plug the openings of injector holes and common

rail with the protective caps.