Page 567 of 2053
1B3 -- 18 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
27. Disconnect the preheating time relay sensor plug.
28. Disconnect the coolant temperature sensor plug.
29. Disconnect the accelerator cable from the control
linkage.
Installation Notice
Tightening Torque8--18 N∙m (6 -- 13 lb-ft)
30. Loosen the connection of control pressure cable (an
arrow) used in auto transmisson.
Page 589 of 2053
1B3 -- 40 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
Disassembly Procedure
1. Completely drain the coolant from the radiator and
cylinder block.
2. Remove the cooling fan shroud.
3. Hold the fan with counter holder and remove the bolt
and then remove the cooling fan.
Notice
Keep the fan in vertical position.
Counter Holder 603 589 00 40 00
4. Remove the bracket oil dipstick tube.
5. Remove the nut.
6. Remove the nut on the tensioning lever and insert
the rod(F12’ 180mm). By pushing the rod to the ar-
row direction, pull back the bolt.
7. Push the tensioning lever to the opposite direction to
release the spring tension and remove the poly V--
belt.
Page 593 of 2053
1B3 -- 44 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
22. Remove the cable channel.
23 .Disconnect the cables from the glow plug sensor
and coolant temperature sensor.
24. Remove the heater pipe bracket from the oil filter.
25. Pry off the clamp and push the heater feed pipe for-
ward and then pull out the pipe.
Page 609 of 2053
1B3 -- 60 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
33. Replace the gasket and install the cylinder head
cover.
Tightening Torque10 N∙m(89lb-in)
34. Install the blow-- by hose.
35. Connect the wires to the coolant temperature sen-
sor and the glow plug sensor.
36. Replace the intake manifold gasket.
37. Install the intake manifold.
Tightening Torque25 N∙m (18 lb-ft)
Page 726 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 177
D AEW OO M Y_2000
UNIT REPAIR
CYLINDER HEAD PRESSURE LEAKAGE TEST
Preceding Work : Removal of the cylinder head
Removal of the exhaust manifold
Removal of the valve
1 Feed Pipe
2Bolt
3 Return Connection
4 Gasket Replace.................................
5 Coolant Gallery Sealing..........................
6 Pressure Measuring Plate Completely tight to the cylinder head.................
7 Cylinder Head...........................
Immerse with pressure measuring plate into warm water of approx. 60_C and pressurize with compressed
air of 2 bar.
Notice
If air bubbles are seen, replace the cylinder head.
Tools Required
115 589 34 63 00 Pressure Measuring Plate
601 589 00 25 00 Suspension Device
Page 730 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 181
D AEW OO M Y_2000
Tools Required
102589001500 Drift
102589121500 Drift
Replacement Procedure
1. Completely drain the coolant.
2. Remove any parts which impede access.
(Example : transmission, injection pump)
3. Place the screwdriver to the deepdrawn edge of the
core plug and pull forward and then rotate 90_.
4. Pull out the core plug with pliers.
5. Thoroughly clean the sealing surface and apply Loc-
tite 241.
6. Install the new core plug by using a drift.
Drift 102 589 00 15 00 (F34)
Drift 102 589 12 15 00 (F17)
7. Install the removed parts and fill the coolant.
Notice
The adhesive must be allowed to harden for about
45 minutes before filling of coolant.
8. Warm up the engine and check the coolant for leaks.
Page 737 of 2053

D AEW OO M Y_2000
SECTION 1D3
OM600 ENGINE COOLING
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 other -
wise noted.
TABLE OF CONTENTS
Specifications 1D3 -- 1............................
General Specifications 1D3-- 1....................
Fastener Tightening Specifications 1D3 -- 1..........
Diagnosis 1D3 -- 2.................................
Cooling Circulation 1D3 -- 2........................
Thermostat Operation 1D3 -- 3....................
Cooling System Leakage Test 1D3-- 4..............
Maintenance and Repair 1D3 -- 5...................On-- Vehicle Service 1D3-- 5.........................
Drain and Filling of Coolant 1D3 -- 5................
Wat er Pum p 1D3 -- 6.............................
Water Pump Housing 1D3-- 8.....................
Cooling Fan Clutch 1D3 -- 10......................
Radiator 1D3-- 12................................
Cooling Sub-- System 1D3-- 14.....................
Thermostat 1D3 -- 16.............................
SPECIFICATIONS
GENERAL SPECIFICATIONS
ApplicationDescription
CoolantALUTEC P-- 78
Mixing Ratio (Water: anticorrosion)50 : 50
Capacity662LA10.5L -- 11Lpy
661LA9.5L -- 10L
FASTENER TIGHTENING SPECIFICATIONS
ApplicationNSmLb-- FtLb-In
Water Pump Bolt10--89
Belt Pulley Bolt10--89
Water Pump Housing Return Pipe Bolt10--89
Thermostat Bolt10--89
Cooling Fan Clutch Socket Bolt (Center)4533--
Cooling Fan Clutch Socket Bolt (Side)10--89
Radiator Bolt3--7--27 -- 62
Coolant Sub-- tank Bolt3--7--27 -- 62
Page 739 of 2053
1D3 -- 4 OM600 ENGINE COOLING
D AEW OO M Y_2000
COOLING SYSTEM LEAKAGE TEST
Tools Required
124589152100Tester
Test
1. Loosen the pressure cap by 1 notch and remove the
cap after.
Notice
Do not remove radiator cap when coolant is above
90°C.
2. Add the coolant to the arrow mark of coolant reser-
voir.
3. Connect the special tool to the injector of reservoir
and apply 1.4bar pressure.
Tester 124 589 15 21 00
4. If the pressure on the tester drops, check the hose,
pipe and leakage and, replace or retighten.