161 SSANGYONG MUSSO 2003 Service Manual

1B2-110 M161 ENGINE MECHANICAL
CRANKCASE MATING SURFACE
Service Data StandardHeight of the Crankcase “H” (When New)
Minimum Height After Milling Flatness Permissible Deviation of Parallelism of the Upper to Lower Mating SurfacePeak-to-valley Height Crankcase Upper Mating SurfaceCrankcase Lower Mating SurfaceAxial Direction
Transverse Direction Crankcase Upper Mating SurfaceCrankcase Lower Mating Surface289.35 - 289.45mm
289.05mm0.03mm0.04mm0.1mm
0.05mm
0.012 - 0.009mm0.025 - 0.020mm

M161 ENGINE MECHANICAL 1B2-111
Chamfering Procedure
1. Chamfer angle : 75°
2. Polish the lower chamfered area evenly with a grinder after finishing the chamfering with a suitable tool (e.g., hand milling cutter).

1B2-112 M161 ENGINE MECHANICAL
CYLINDER HEAD MATING SURFACE Preceding Work : Removal of valves
Service Data Standard Notice Do not exceed 0.4mm for the milling of the mating surface of crankcase and cylinder head.Overall Height of Cylinder HeadMinimum Height After MachiningFlatness Distance
‘T’
(Between Camshaft Bearing
and Valve Stem) Axial Direction
Transverse DirectionStandard Size Repair Size 135.9 - 136.0 mm
135.5 mm0.08 mm 0.0 mm
24.21 - 24.75 mm 22.21 - 22.75 mm 23.96 - 24.51 mm21.96 - 22.51 mm
Intake ExhaustIntakeExhaust

M161 ENGINE MECHANICAL 1B2-113
Measurement of Mating Surface
1. Measure the height (H) of the cylinder head (refer to Service
data standard ).
2. Check the mating surface of the cylinder head.
3. Mill the sharp edge of the combustion chamber.
4. Re-measure the height (H) of the cylinder head.
5. Seal the intake and exhaust valves.
6. Measure the dimension (T) between the camshaft bearing and the valve system (refer to Service data standard).
7. Mill the cylinder head valve seat (refer to Service data
standard ).
Universal Tool Surface Grinding Machine
Sceledum, Type RTYRoaro
Schio/Italy

OM600 ENGINE MECHANICAL 1B3-161
Installation Procedure
1. Put the same alignment mark on the new crankshaftsprocket as in the old sprocket. Notice Check the timing chain, camshaft sprocket, injection pump timing sprocket, oil pump chain and oil pump sprocket for
wear and replace if necessary.
2. Install the new crankshaft sprocket (12) by using a drift (21). Notice Align the groove of sprocket and woodruff key (arrow)
exactly. Drift 116 589 07 15 00
3. Fit the timing chain (4) on the crankshaft sprocket (12). Notice Align the alignment marks (arrow) on the chain and sprocket.
4. Install the camshaft sprocket (3).
Tightening Torque 25 Nm + 90 °
Notice Pay attention on the alignment marks and dowel pin (arrow).

Circulation Type RadiationCapabilitySECTION 1D2
M161 ENGINE COOLING
Specifications . . . . . . . . . . . . . . . . . . . . . . . 1D2-1
General Specifications . . . . . . . . . . . . . . . . . 1D2-1
Fastener Tightening Specifications . . . . . . . . 1D2-2
Special Tools . . . . . . . . . . . . . . . . . . . . . . . 1D2-3
Special Tools Table . . . . . . . . . . . . . . . . . . . . 1D2-3
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . 1D2-4 System Leakage Test . . . . . . . . . . . . . . . . . . 1D2-4
Maintenance and Repair . . . . . . . . . . . . . . 1D2-5
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . 1D2-5Coolant Drain and Fill Up . . . . . . . . . . . . . . .
1D2-5
Cooling Fan and Viscous Clutch . . . . . . . . . . 1D2-7
Coolant Pump . . . . . . . . . . . . . . . . . . . . . . . . 1D2-9
Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . 1D2-11
Thermostat Housing Assembly . . . . . . . . . . 1D2-12
Removal and Installation of Cooling Fan Shroud . . . . . . . . . . . . . . . . . . . . . . . 1D2-14
Removal and Installation of Radiator . . . . . 1D2-15
SPECIFICATIONS
GENERAL SPECIFICATIONS
CAUTION: Disconnect the negative battery cable before removing or installing any electrical unit or when a tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless otherwisenoted.
TABLE OF CONTENTS
Description
Water Cooling Forced Circulation Down Flow
61,500 kcal/h 58,000 kcal/h
680 x 415 x 25 mm680 x 415 x 28 mm
460, 9 Blades
ALUTEC-P78, Dragon Power Coolant A 50 : 5010.5 L 3.4 L
1.4 bar
Application
Cooling TypeRadiator Dimension(Width ×Height ×Thickeness)
Cooling Fan Anti-Freeze Agent
Mixing Ratio of Anti-Freeze Agen with Water (Anti-Freeze Agent : Water) Coolant Capacity Reservoir Capacity
Cap Operating Pressure (Reservoir Tank Pressure Cap)

1D2-2 M161 ENGINE COOLINGFASTENER TIGHTENING SPECIFICATIONS
N

 m
30
22.5 - 27.5
9 - 11
9 - 11
9 - 11
40.5 - 49.5
3 - 73 - 7
Application
Coolant Drain PlugEngine Hanger Bracket and Coolant OutletPort Bolt Thermostat Cover Bracket Bolt Oil Cooler Pipe Line BoltCooling Fan BoltViscous Clutch Bolt
Automatic Transmission Oil Cooling Hose Bolt Cooling Fan Shroud Bolt

M161 ENGINE COOLING 1D2-3
SPECIAL TOOLS
SPECIAL TOOLS TABLE
124 589 15 21 00 Tester
603 589 00 40
Counter Holder
111 589 02 01 00
Open End Wrench111 589 00 40 00
Open End Wrench

1D2-4 M161 ENGINE COOLINGDIAGNOSIS
3. Connect the special tool to the reservoir filler cap and apply 1.4 bar of pressure.
SYSTEM LEAKAGE TEST
Tools Required
124 589 15 21 00 Tester
Test Procedure
1. Loosen the cap a little and release pressure and remove
the cap. Notice For the risk of scalding, cap must not be opened unless the coolant temperature is below 90 °C.
2. Fill coolant up to upper edge (arrow) of reservoir.
Tester 124 589 15 21 00
4. If the pressure on the tester drops, check leakage at the all coolant hoses and pipes and each connections. Replace
or retighten if necessary.

M161 ENGINE COOLING 1D2-5
MAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
COOLANT DRAIN AND FILL UP Draning & Filling up Procedure 1. Loosen the cap a little and release pressure and remove the cap. NoticeFor the risk of scalding, the cap must not be opened unless the coolant temperature is below 90oC.
2. Loosen the radiator lower drain cock and drain the coolant.
Notice
Collect coolant by using a proper container.
3. Drain the coolant from the crankcase by inserting a hose(dia. 14mm) onto the drain bolt on the side of crankcase (exhaust manifold) and by loosening the plug. Notice
Just loosen the drain plug to drain the coolant and do
not remove the plug completely.
Collect coolant by using proper container.