engine SSANGYONG MUSSO 1998 Workshop Repair Manual

1B2-18 M161 ENGINE MECHANICAL
Operation at Idling and Mid-Load
lThe 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 partial
load 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 Over
Mid-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 Bracket11 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
lThe 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 partial
load.
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 the
carrier (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); and
then 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 Nm3 Bolt (M8 X 85, 1 piece)...................22.5-27.5 Nm
4 Alternator Bracket

1B2-22 M161 ENGINE MECHANICAL
POWER 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 Nm9 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 MECHANICAL
5. 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.