engine oil SSANGYONG MUSSO 2003 Manual Online

M161 ENGINE MECHANICAL 1B2-17
CRANKCASE VENTILATION SYSTEM Operation at Idling and Mid-Load
1 HFM Sensor
2 Cylinder Head Cover
3 Oil Spearation Chamber (Full-Load or OverMid-Load)
4 Intake Air Duct (Cross Pipe)
5 Vent Line (Full-Load or Over Mid-Load)
6 Throttle Valve
7 Restrictor, Diameter 1.1mm (Mid-Load at Idling)
8 Intake Manifold
9 Vent Line (Mid-Load at Idling)
10 Air Conditioner Bracket 11 Oil Separation Chamber (Mid-Load at Idling)
12 Crank Chamber
13 Oil Return Pipe
14 Oil Pan
15 Timing Gear Case Cover
16 Crankcase
17 Chain Housing
A Fresh Air
C Blow-by Gas
D Vent Connection

1B2-18 M161 ENGINE MECHANICAL Operation at Idling and Mid-Load
The throttle valve(6) is closed or very partially opened, and the vacuum pressure in intake manifold is high. The blow-by gas and the fresh air that is additionally supplied through the vent connection(D) in the crankcase in partialload gets supplied to the combustion chamber from the crank
chamber(12) through the oil separation chamber(11), air- conditioner bracket(10), vent line(9), and restrictor(7)mounted to the cylinder head. The circulated engine oil returns to the oil pan through the oil return pipe(13) at the bottom of oil separation
chamber(11). The fresh air gets supplied to the crank chamber(12) through the HFM sensor(1), intake air duct(4), vent line(5), oil separation chamber(3), chain housing(17), and the timing gear case cover(15). The additional supply of the fresh air is needed to prevent from forming the residues of the engine oil.

M161 ENGINE MECHANICAL 1B2-19
Operation When Full-Load at Partial Load
1 HFM Sensor
2 Cylinder Head Cover
3 Oil Spearation Chamber (Full-Load or OverMid-Load)
4 Intake Air Duct (Cross Pipe)
5 Vent Line (Full-Load or Over Mid-Load)
6 Throttle Valve
7 Restrictor, Diameter 1.1mm (Mid-Load at Idling)
8 Intake Manifold
9 Vent Line (Mid-Load at Idling)
10 Air Conditioner Bracket 11 Oil Separation Chamber (Mid-Load at Idling)
12 Crank Chamber
13 Oil Return Pipe
14 Oil Pan
15 Timing Gear Case Cover
16 Crankcase
17 Chain Housing
A Fresh Air
C Blow-by Gas
D Vent Connection

1B2-20 M161 ENGINE MECHANICAL Operation When Full-Load at Partial Load
The throttle valve (6) is partially opened or fully opened. The air flows very rapidly through the vent line(5)s connection(D) and the intake air duct when full-load at partialload.
Consequently, most of the low-by gases are supplied to the combustion chamber through the timing gear case cover(15), chain housing(17), oil separation chamber(3), vent line(5), throttle valve(6), and intake manifold(8).

M161 ENGINE MECHANICAL 1B2-23
Removal & Installation Procedure
1. Remove the belt pulley after removal of poly v-belt.Installation Notice
2. Disconnect the hydraulic pipe of the power steering pump and drain the oil.
3. Unscrew the bolts (arrows) and remove the steering pump. Installation Notice
Notice Pull the tensioning pulley counterclockwise as shown in the figure.
4. Remove the compressor after disconnecting the wiring connector and refrigerant pipe of A/C compressor. Notice Discharge all the refrigerant before removing the pipes.
Tightening Torque 40.5 - 49.5 Nm
Tightening Torque 22.5 - 27.5 Nm

1B2-24 M161 ENGINE MECHANICAL5. Disconnect the vent hose from the A/C bracket.
6. Unscrew all the mounting bolts (arrows) and remove the A/C bracket and the gasket. Installation Notice
7. Clean the sealing surface.
8. Replace the gasket with new one.
9. Installation should follow the removal procedure in the reverse order.
10. Check the oil leakage by operating the engine after installation.
Tightening Torque 22.5 - 27.5 Nm

M161 ENGINE MECHANICAL 1B2-27
1 Upper Nut
2 Hydraulic Installer.................62~93 Nm
3 Lower Nut ............................. 28~47 Nm
Removal and Installation Procedure
1. Unscrew the upper nut(1) on engine mounting and remove the engine. Installation Notice
3. Installation should follow the removal procedure in the reverse order.
Tightening Torque 62 - 93 Nm
2. Unscrew the lower nut(3) and remove the hydraulic engine mounting insulator. Installation Notice
Tightening Torque 28 - 47 Nm
Notice If the insulator is spotted with oil, replace the hydraulic
insulator assembly.

M161 ENGINE MECHANICAL 1B2-35
CYLINDER HEAD COVER
1 Ignition Coil Cover
2 Spark Plug Connector
3 Bolt (M6 X 45 : 4 pieces, M6 X 60 :6 pieces) ............................................. 10 ± 1 Nm 4 Cylinder Head Cover
5 Gasket ................................................... Replace

1B2-36 M161 ENGINE MECHANICAL Removal & Installation Procedure
1. Remove the intake air duct.Installation Notice
2. Remove the ignition coil cover. Installation Notice
3. Remove the spark plug connector and ignition cable. Notice Release 3 screws from the ignition cover and remove the cover for M161 Engine coil.
Tightening Torque 9 - 11 Nm
Tightening Torque 9 - 10 Nm

1B2-44 M161 ENGINE MECHANICAL
TIMING GEAR CASE COVER Preceding Work : Removal of viscous clutchRemoval of cylinder head front cover Removal of tensioning device Removal of water pumpRemoval of oil filter elementRemoval of oil panRemoval of alternator bracker
1 Bolt (M8 X 60, 3 pieces) .................22.5-27.5 Nm
2 Bolt (M8 X 75, 1 piece) ...................22.5-27.5 Nm
3 Seal 4 Timing gear case cover
5 O-ring
6 Sleeve