SSANGYONG MUSSO 2003 Service Manual

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 1B2-21
ALTERNATOR
Removal & Installation Procedure
1. Remove the drive belt.
2. Remove the alternator.
3. Unscrew the alternator carrier bolts (1,2,3) and remove thecarrier (4).Installation Notice
Tightening Torque 22.5 - 27.5 Nm
Notice Apply 3Nm of torque when mounting the bolt (1); apply 25 ± 2.5Nm of torque when mounting the bolts (2), and (3); andthen tighten the bolt (1) with 25 ± 2.5Nm of torque.
4. Installation should follow the removal procedure in the reverse order.
1 Bolt (M8 X 40, 3 pieces)
.................22.5-27.5 Nm
2 Bolt (M8 X 70, 2 pieces) .................22.5-27.5 Nm 3 Bolt (M8 X 85, 1 piece)
...................22.5-27.5 Nm
4 Alternator Bracket

1B2-22 M161 ENGINE MECHANICALPOWER STEERING PUMP AND A/C BRACKET Preceding Work : Removal of cooling fan and shroud Removal of drive belt
1 Nut ................................................. 35.2-28.8 Nm
2 Washer
3 Belt Pulley
4 Bolt (M8 X 91, 2 pieces) .................22.5-27.5 Nm
5 Power Steering Pump
6 Bracket
7 Washer
8 Bolt (M8 X 20, 2 pieces) .................22.5-27.5 Nm 9 Washer
10 Bolt (M8 X 105,4 pieces) ................22.5-27.5 Nm
11 A/C Compressor
12 Bolt (M8 X 50, 5 pieces, M8 X 80,
5 pieces) ........................................ 22.5-27.5 Nm
13 A/C Bracket
14 Vent Hose
15 Bracket Gasket ...................................... Replace

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 1B2-25
HYDRAULIC ENGINE MOUNTING INSULATOR Service Data

1B2-26 M161 ENGINE MECHANICAL Sectional View
1 Rubber Body
2 Brackek
3 Core
4 Lower Bolt
5 Rubber Plunger
6 Plunger Plate
7 Rubber
8 Plate9 Lower Orifice
10 Upper Orifice
11 Diaphram
12 Cover Plate
13 Upper Bolt
14 Flange Bolt
15 Rivet
16 Fluid

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.

1B2-28 M161 ENGINE MECHANICAL
POLY V-BELT Preceding Work : Removal of cooling fan
1 Poly V-belt (2,155 mm)
2 Belt Tensioning Pulley
Removal & Installation Procedure
1. Release the belt tension by turning the stud on the cap with 12 sided wrench or spanner counterclockwise.
2. Remove the poly v-belt.
Notice Check the belt for damage and tensioning pulley bearing
point for wear and replace them if necessary.
3. Install the belt after prying the tensioning pulley.3 Belt Tensioner