1998 SSANGYONG MUSSO oil

M161 ENGINE CONTROLS 1F2-55
Removal & Installation Procedure
1. Remove the O-ring.
Check for damage and replace it if necessary.
2. Remove the injector bracket from the injector.
Installation Notice
Exactly seat the anti-twist lock into the square groove in
injector.
3. Separate the injector from the fuel distributor.
Inspection & Maintenance
Inspection of the Injector operation and spray pattern
1. Connect the contact box to the ECU.
2. Connect the shop made test plug to the injector and place
it into the tank.
3. Position the ignition switch to ON.
4. Connect the pin 63(+) and 69(-) of the contact box with a
test cable.
5. Check the injector spray pattern.
Notice
Replace the injector if the injector spray pattern is abnormal
or the fuel doesn't inject.
Injector Resistance Inspection
1. Remove the injector connector.
2. Measure the injector coil resistance using a resistance
tester.
Notice
Replace the injector if the measured values is out of the
specified values. Check the connector and wire connection
between the ECU and the injector if the measured values
are normal.
Specified Value
14 - 17 W

M161 ENGINE CONTROLS 1F2-73
OXYGEN SENSOR
1 Electricity Wire
2 Oxygen Sensor Housing
3 Sensor Ceramic
4 Electrode (Internal)
5 Electrode (External)
6 Heating Coil
7 Open Space
8 Protector Tube
Functions
The oxygen sensor optimizes the combustion (Air-Fuel Ratio
14.7:1) and resets the Air-fuel ratio in the ECU after sensing
the amount of oxygen from the exhaust gases to diminish the
exhaust gases.
- Rich(<1) above approx. 450mV
- Lean(>1) below approx. 450mV
Locatoin of Sensor
Oxygen sensor is located on the front exhaust pipe.

OM600 ENGINE CONTROLS 1F3-3
FUEL INJECTION PUMP CODING
Model Code
PES 4M 55C 320 RS 167
PES 5M 55C 320 RS 168
Fuel Injection Pump Code
Example)PES 5M 55C 320 RS 168
P Pump
E Self-Driven
S End Flange Mounting
5 Number of Cylinders (5EA)
M Pump Size
55 Element Diameter
C Modification Letter
320 Assembly Number
R Direction of Rotation (clockwise)
S188 Special Version
RSF Governor
R Governor
S Coil Spring
F Drive Governor
Component Location
1. Fuel Injection Pump
2. Vacuum Unit (Stop Unit)
3. Control Lever
4. PLA Vacuum Unit (Idle Speed Adjustment)
5. Governor
6. Fuel Pump
OM661 LA Engine
OM662 LA Engine

1F3-10 OM600 ENGINE CONTROLS
VACUUM PUMP (SECTIONAL VIEW)
2 Suction Valve
4 Piston
5 Pressure Valve
6 Safety Valve
7 O-Ring
8 Pump Housing
9 Pump Cover
12 Lever
14 Outer Return Spring
15 Inner Spring Retainer16 Roller Cam
17 Piston Rod
21 Inner Return Spring
23 Upper Spring Retainer
28 Piston Ring
30 Seal Ring
31 Oil Return Valve
32 Restrictor
SB To Brake Booster
SK To Vacuum Lines

1F3-30 OM600 ENGINE CONTROLS
REMOVAL AND INSTALLATION OF INJECTION TIMING DEVICE
Preceding Work : Removal of vacuum pump
1 Cylinder Head Cover
2 Bolt............................................................10Nm
3 Gasket ................................................... Replace
4 Fuel Injection Pump
5 Seal....................................................... Replace
6 Screw Plug.................................................30Nm
7 Oil Pan
8 Locking Pin
9 Injection Timing Device10 Washer
11 Bolt (Left-Hand Thread).............................46Nm
12 Camshaft Sprocket
13 Washer
14 12-Sided Stretch Bolt............Check, 25Nm + 90°
15 Timing Chain
1 6 Seal
17 Chain Tensioner.........................................80Nm

1F3-32 OM600 ENGINE CONTROLS
5. Remove the plug (6) and seal (5) from the fuel injection
pump and collect oil in a suitable vessel.
Installation Notice
Notice
Replace the seal.
Tightening Torque 30 Nm
6. Install the locking screw (18) into the injection pump.
Notice
Before tightening the bolts for the injection timing device
and the camshaft sprocket, always remove the locking screw
from the injection pump and reinstall the plug.
Locking Screw 601 589 05 21 00
7. Place alignment marks (arrow) on the timing chain (12) and
camshaft sprocket (15). 4. Position the no.1 cylinder at ATDC 15°.
Notice
Do not rotate the engine with camshaft sprocket bolt or
opposite direction of the engine rotation.

1F3-38 OM600 ENGINE CONTROLS
Tools Required
617 589 08 21 00 Position Sensor
Test Procedure
1. Remove the screw plug (5) and seal (4) and collect oil in a
suitable vessel.
2. Install the position sensor (1) into the governor housing of
the injection pump to be the guide pin of the position sensor
facing up.
3. Connect the battery terminal of position sensor (1) to positive
terminal (+) of battery.
Position Sensor 617 589 08 21 00
4. Rotate the crankshaft by hand (in direction of engine rotation)
until the lamp ‘B’ lights up. Rotate the crankshaft carefully
further until both lamps ‘A and B’ come on. In this position,
check the Rl value on the crankshaft vibration damper.
Notice
If only lamp ‘A’ lights up, repeat the test and if out of
specification, adjust start of delivery.
Specification ATDC 14° - 16°

OM600 ENGINE CONTROLS 1F3-41
With Pulse Generator Tools Required
617 589 09 21 00 Rl Sensor
617 589 10 21 00 Timing Tester
667 589 00 21 00 TDC Pulse Generator
Commercial Tools
Item
Digital Tester
Without Pulse GeneratorTools
Bosch, MOT 001.03
Hartmann & Braun, EOMT3
Bosch, ETD 019.00
Sun, DIT 9000
ALV, Diesel - Tester 875
Test Procedure
1. Remove the screw plug (7) and seal (8) collect oil in a suitable
vessel.
2. Install the Rl sensor into the governor housing of injection
pump (1).
Rl Sensor 617 589 10 21 00
3. Connect the digital tester and TDC pulse sender unit
according to connection diagram.
4. Run the engine at idle speed and check the Rl value on the
digital tester
Notice
If out of standard, adjust the start of delivery.
5. Stop the engine.
6. Remove the Rl sensor, digital tester and TDC pulse sender
unit.
7. Replace the seal and tighten the plug.
8. Check engine oil level and adjust if necessary.
Rl value ATDC 14° - 16°
Tightening Torque 30 Nm