coolant temperature SSANGYONG MUSSO 1998 Workshop User Guide

1B3-60 OM600 ENGINE MECHANICAL
35. Connect the wires to the coolant temperature sensor and
the glow plug sensor.
36. Replace the intake manifold gasket.
37. Install the intake manifold.
Tightening Torque 25 Nm
33. Replace the gasket and install the cylinder head cover.
Tightening Torque 10 Nm
34. Install the blow-by hose.

1D1-4 M162 ENGINE COOLING
DIAGNOSIS
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.

M162 ENGINE COOLING 1D1-5
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.
Notice
For the risk of scalding, the cap must not be opened unless
the coolant temperature is below 90
oC.
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
lJust loosen the drain plug to drain the coolant and do
not remove the plug completely.
lCollect coolant by using proper container.
4. After complete draining of the coolant, remove the hose
connector to drain plug and reinstall the drain plug.
Installation Notice
5. Tighten the radiator lower drain cock.
Tightening Torque 30 Nm

1D2-4 M161 ENGINE COOLING
DIAGNOSIS
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.
Notice
For 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
lJust loosen the drain plug to drain the coolant and do
not remove the plug completely.
lCollect coolant by using proper container.

M161 ENGINE COOLING 1D2-13
Removal & Installation Procedure
1. Drain the coolant.
2. Remove the de-aeration hose (4), coolant outlet hose (5)
and coolant bypass hose (6).
3. Disconnect the coolant temperature sensor connector.
4. Unscrew the bolt (1c) and pry off the tensioning device shock
absorber (7).
Installation Notice
6. Replace the O-ring with new one.
7. Installation should follow the removal procedure in the
reverse order.
8. Check for leaks in cooling system. 5. Unscrow the bolts (1a, 1b) and remove the engine
hanger bracket and thermostat housing.
Installation Notice
Tightening Torque9 - 11 Nm
22.5 - 27.5 Nm
(1a)
(1b)
Tightening Torque 22.5 - 27.5 Nm

OM600 ENGINE COOLING 1D3-3
THERMOSTAT OPERATION
Operation
1. At warming up
Valve closes until temperature of coolant reaches to 85°C.
B. From Radiator
C. From Crankcase
D. To Crankcase
2. At partial opening.
Valve opens partially as temperature of coolant is maintained
between 85-100°C.
3. At full opening.
Valve opens full as temperature of coolant is more then
100°C.

1D3-8 OM600 ENGINE COOLING
COOLANT PUMP HOUSING
Preceding Work : Removal of coolant pump
Removal of thermostat
Removal of alternator
1 Gasket ................................................... Replace
2 Coolant Pump Housing
3 Connector
4 Bolt........................................................... 10 Nm5 Coolant Hose
6 Return Pipe
7 O-Ring
8 Temperature Sensor
Notice
The bolt on the arrow should be installed last.

1E3-2 OM600 ENGINE ELECTRICAL
Preheating System
General information
The preheating system consists of control, coolant temperature
sensor and glow plugs.
lControl relay - preheating time.
lCoolant temperature sensor.
lGlow plug.
GLOW PLUG
1 Wiring Harness
2 Nut .............................................................. 4 Nm3 Wire Terminal
4 Glow Plug
MAINTENANCE AND REPAIR
ON-VEHICLE SERVICE

OM600 ENGINE ELECTRICAL 1E3-3
1. Preheating time - control relay.
Control relay functions as followings :
lSwitching of preheating current.
lIndication of preheating finish.
lControl of preheating sequence.
lIndication of fault.
2. Coolant temperature sensor.
Coolant temperature sensor senses coolant’s temperature
and signals it to the preheating relay continuously.
3. Glow plug
The glow plug parts are housing with M12 ´ 1.25 thread
and heating pin in housing. It is connected in a parallel circuit
with the specified voltage of 11.5V.
The heating element has a heating coil and a control coil
and they are connected in series.
1. Control Coil
2. Heater Coil
4. Current and temperature of glow plug
lCurrent of glow plug
While the preheating system operates, current of about
30A flows in each glow plug and temperature of heating
coil rises very fast.
Due to the rise of temperature, the resistance of control
coil increases therefore the current is controlled to
about 8~15A and that protects the glow plug from over-
heating.
lTemperature of glow plug
The temperature of the glow plug reaches up to 900°C
after about 9 seconds and up to 1,050°C after 30
seconds.